2019年已知較明亮的彗星(2019年1月12日更新)
本帖最後由 WCYue 於 2019-9-14 04:46 編輯2019年已知亮於10等的彗星
2019年2月 8.5等 岩本彗星 C/2018 Y1 Iwamoto
2019年8月 6.0等 SOHO彗星 322P/SOHO
2019年9月 8.9等 阿弗卡諾彗星 C/2018 W2 Africano
2019年10月 -2.7等 SOHO彗星 P/2008 Y12 SOHO
2019年12月 5.2等 布朗平彗星 289P/Blanpain (2020年1月 4.8等 )
2019年12月 9.5等 泛星彗星 C/2017 T2 PanSTARRS (2020年5月 8.2等)
2019年已知最明亮的彗星：2019年10月 -2.7 等 P/2008 Y12 SOHO彗星，近日點距離太陽0.069 天文單位，最近地球時0.687 天文單位
2019年已知最接近地球的明亮彗星：2020年1月 4.8 等 布朗平彗星，最近地球時只有0.092 天文單位
2019年已知最接近太陽的明亮彗星：2019年8月 6.0等 322P/SOHO彗星，近日點距離太陽只有0.051 天文單位
彗星是否可觀並非單純取決於它的亮度，或者是否直接看到，是與它的回歸次數和距離地球遠近有關。距離地球越近可觀性越大，回歸次數越少，距離地球越近，看到彗尾在天空伸展的角度越大，可觀性就越高。
彗星的光度(星等)最彗是的綜合總光度
彗星中文譯名準則 https://forum.hkas.org.hk/thread-7369-1-1.html 本帖最後由 WCYue 於 2019-8-28 09:38 編輯
SOHO彗星 322P/SOHO 星曆表
根據2015年8月8日的天文測量數據
T 2019 Aug 31.4536 TT
q0.050535 Peri.56.4704
z0.398318 Node351.9545
e0.979871 Incl.11.5075
Ref: MPC102103
年月 日 hm s o'" deltaRSun ElongPhase 光度 "/minPA
2019 Aug 2910 45 15.5 6 27 52 0.8990.138 4.9141.3 10.2 7.39 308.8
2019 Aug 3010 35 11.0 8 27 58 0.9260.085 0.8170.6 8.1 8.48 308.9
2019 Aug 3110 27 13.7 10 149 0.9980.051 2.8101.6 6.0 1.78 345.7
2019 Sep110 33 37.7 9 43 14 1.0890.089 2.2 25.3 8.7 6.54 115.3
2019 Sep210 43 15.4 8 31 42 1.1510.142 0.6 4.0 10.8 6.51 117.5
說明：
年、月、日 預報日期，以當日香港時間晚上20時 (即是世界時12時)
赤經 曆元 2000年位置 (單位：時、分、秒 )
赤緯 曆元 2000年位置 (單位：度、分、秒 )
距地 彗星距離地球 (單位：天文單位)
距日 彗星距離太陽 (單位：天文單位)
離角 彗星離開太陽的角度 (單位：度)
Phase 太陽、彗星、地球之間夾角 (單位：度)
光度 彗星總光度 (單位：星等)
"/min 彗星在天區移動速度 (單位：每分鐘移動角秒)
PA 彗星移動天極方位角 (單位：度)
彗星軌道根數
T 通過近日點的動力時時間 (以年、月、日及日之小數表示)
q 近日點距離 (單位：天文單位)
e 軌道偏心率 (橢圓：0 < e < 1；拋物線：e = 1；雙曲線：1 < e)
Peri. 近日點幅角 (單位：度)
Node 升交點黃道經度 (單位：度)
Incl. 軌道傾斜角 (單位：度)
SOHO彗星 P/2008 Y12 (SOHO) 星曆表
根據2008年12月22日的天文測量數據
T 2019 Oct9.7373 TT
q0.067550 Peri. 144.4019
z0.324915 Node309.7709
e0.978052 Incl.23.6370
Ref: MPC 88693
年月 日 hm s o'" deltaRSun ElongPhase 光度 "/minPA
2019 Aug 1017 32 15.3-363 48 0.6971.530125.9 32.5 10.1 3.24 282.7
2019 Aug 1117 261.8-35 460 0.6941.514123.7 33.8 10.0 3.23 283.8
2019 Aug 1217 19 52.8-35 26 48 0.6921.497121.6 35.2 10.0 3.22 284.9
2019 Aug 1317 13 48.7-356 17 0.6901.480119.4 36.6 9.9 3.20 286.0
2019 Aug 14177 50.2-34 44 31 0.6891.463117.3 38.0 9.8 3.18 287.0
2019 Aug 15171 57.7-34 21 35 0.6881.446115.1 39.4 9.8 3.16 288.1
2019 Aug 1616 56 11.6-33 57 33 0.6871.429113.0 40.7 9.7 3.13 289.1
2019 Aug 1716 50 32.4-33 32 31 0.6871.411110.9 42.1 9.7 3.10 290.0
2019 Aug 1816 450.3-336 34 0.6871.394108.8 43.4 9.6 3.07 291.0**最近地球**
2019 Aug 1916 39 35.6-32 39 46 0.6871.376106.6 44.8 9.6 3.03 291.9
2019 Aug 2016 34 18.3-32 12 13 0.6871.358104.5 46.1 9.5 3.00 292.8
2019 Aug 2116 298.6-31 440 0.6881.341102.5 47.5 9.5 2.96 293.7
2019 Aug 2216 246.6-31 15 10 0.6891.323100.4 48.8 9.4 2.92 294.5
2019 Aug 2316 19 12.3-30 45 50 0.6901.304 98.3 50.1 9.3 2.88 295.4
2019 Aug 2416 14 25.5-30 162 0.6921.286 96.3 51.4 9.3 2.84 296.1
2019 Aug 25169 46.3-29 45 52 0.6931.267 94.2 52.7 9.2 2.79 296.9
2019 Aug 26165 14.4-29 15 22 0.6951.249 92.2 54.0 9.2 2.75 297.6
2019 Aug 27160 49.7-28 44 37 0.6971.230 90.2 55.2 9.1 2.71 298.3
2019 Aug 2815 56 32.0-28 13 38 0.6991.211 88.2 56.5 9.1 2.67 299.0
2019 Aug 2915 52 21.0-27 42 29 0.7011.192 86.3 57.8 9.0 2.63 299.7
2019 Aug 3015 48 16.5-27 11 13 0.7041.172 84.3 59.0 8.9 2.59 300.3
2019 Aug 3115 44 18.1-26 39 50 0.7061.153 82.4 60.2 8.9 2.55 300.9
2019 Sep115 40 25.6-268 23 0.7091.133 80.4 61.5 8.8 2.52 301.4
2019 Sep215 36 38.5-25 36 53 0.7111.113 78.5 62.7 8.7 2.48 301.9
2019 Sep315 32 56.6-255 21 0.7141.093 76.6 63.9 8.7 2.45 302.4
2019 Sep415 29 19.5-24 33 47 0.7161.072 74.7 65.1 8.6 2.42 302.9
2019 Sep515 25 46.7-242 12 0.7191.052 72.8 66.4 8.5 2.40 303.3
2019 Sep615 22 17.8-23 30 35 0.7221.031 71.0 67.6 8.4 2.38 303.7
2019 Sep715 18 52.4-22 58 57 0.7241.010 69.1 68.8 8.3 2.36 304.0
2019 Sep815 15 30.2-22 27 17 0.7270.988 67.2 70.1 8.3 2.34 304.3
2019 Sep915 12 10.6-21 55 33 0.7300.967 65.4 71.3 8.2 2.33 304.6
2019 Sep 10158 53.2-21 23 45 0.7320.945 63.5 72.6 8.1 2.32 304.8
2019 Sep 11155 37.5-20 51 52 0.7350.923 61.7 73.8 8.0 2.32 305.0
2019 Sep 12152 23.0-20 19 51 0.7370.900 59.8 75.1 7.9 2.32 305.2
2019 Sep 1314 599.2-19 47 41 0.7400.877 57.9 76.4 7.8 2.33 305.3
2019 Sep 1414 55 55.7-19 15 19 0.7420.854 56.1 77.8 7.7 2.34 305.4
2019 Sep 1514 52 41.7-18 42 44 0.7450.831 54.2 79.1 7.6 2.35 305.4
2019 Sep 1614 49 26.9-189 52 0.7470.807 52.3 80.5 7.4 2.37 305.4
2019 Sep 1714 46 10.4-17 36 41 0.7490.783 50.4 82.0 7.3 2.40 305.3
2019 Sep 1814 42 51.8-1738 0.7510.758 48.5 83.5 7.2 2.44 305.2
2019 Sep 1914 39 30.2-16 299 0.7540.733 46.6 85.0 7.0 2.48 305.1
2019 Sep 2014 364.9-15 54 39 0.7560.708 44.7 86.6 6.9 2.53 304.9
2019 Sep 2114 32 35.2-15 19 36 0.7580.682 42.7 88.3 6.7 2.59 304.6
2019 Sep 2214 290.1-14 43 55 0.7600.655 40.7 90.0 6.6 2.66 304.3
2019 Sep 2314 25 18.6-147 31 0.7620.628 38.7 91.9 6.4 2.74 304.0
2019 Sep 2414 21 29.7-13 30 18 0.7650.600 36.7 93.8 6.2 2.83 303.6
2019 Sep 2514 17 32.2-12 52 12 0.7670.572 34.6 95.9 6.0 2.94 303.2
2019 Sep 2614 13 24.7-12 137 0.7700.543 32.4 98.1 5.8 3.06 302.7
2019 Sep 271495.7-11 32 56 0.7730.514 30.2100.5 5.5 3.20 302.1
2019 Sep 28144 33.4-10 51 34 0.7760.483 28.0103.1 5.3 3.35 301.5
2019 Sep 2913 59 46.0-108 54 0.7790.452 25.7105.9 5.0 3.53 300.8
2019 Sep 3013 54 41.0- 9 24 50 0.7840.419 23.3109.0 4.7 3.73 300.0
2019 Oct113 49 15.7- 8 39 18 0.7890.385 20.8112.4 4.3 3.97 299.1
2019 Oct213 43 26.7- 7 52 14 0.7950.351 18.3116.4 3.9 4.23 298.1
2019 Oct313 37 10.1- 73 41 0.8020.314 15.6120.9 3.5 4.54 296.9
2019 Oct413 30 20.9- 6 13 48 0.8120.276 12.8126.3 3.0 4.90 295.4
2019 Oct513 22 52.8- 5 238 0.8250.236 10.0132.8 2.3 5.31 293.5
2019 Oct613 14 38.4- 4 32 56 0.8420.193 7.0141.0 1.5 5.78 290.7
2019 Oct7135 30.0- 3 46 36 0.8670.149 4.1151.1 0.4 6.24 286.3
2019 Oct812 55 34.2- 3 14 45 0.9050.103 2.6154.3 -1.1 6.29 276.1
2019 Oct912 470.0- 3 35 37 0.9700.069 3.7112.6 -2.7 4.54 227.6
2019 Oct 1012 47 18.2- 5 37 25 1.0520.083 3.6 48.7 -1.7 6.91 152.7
2019 Oct 1112 54 10.8- 7 59 27 1.1130.126 2.9 23.4 0.2 7.35 138.8
2019 Oct 121329.7-1020 1.1590.172 3.2 18.8 1.7 6.81 133.8
2019 Oct 1313 102.4-11 47 23 1.1980.215 4.2 19.7 2.7 6.26 130.9
2019 Oct 1413 17 36.6-13 19 52 1.2330.257 5.3 21.1 3.5 5.78 128.9
2019 Oct 1513 24 50.9-14 42 21 1.2650.296 6.4 22.2 4.2 5.38 127.3
2019 Oct 1613 31 46.6-15 56 49 1.2950.333 7.5 22.9 4.8 5.03 126.0
2019 Oct 1713 38 25.4-174 39 1.3250.369 8.4 23.2 5.3 4.74 124.8
2019 Oct 1813 44 48.7-186 52 1.3530.403 9.2 23.4 5.7 4.48 123.7
2019 Oct 1913 50 57.9-194 13 1.3810.436 10.0 23.4 6.1 4.25 122.8
2019 Oct 2013 56 54.3-19 57 20 1.4080.468 10.7 23.3 6.4 4.04 121.9
2019 Oct 21142 38.9-20 46 43 1.4350.499 11.3 23.0 6.8 3.85 121.0
2019 Oct 22148 12.6-21 32 45 1.4620.529 11.9 22.8 7.1 3.68 120.2
2019 Oct 2314 13 36.2-22 15 47 1.4880.558 12.4 22.4 7.3 3.53 119.4
2019 Oct 2414 18 50.3-22 566 1.5140.587 12.8 22.0 7.6 3.39 118.7
2019 Oct 2514 23 55.6-23 33 56 1.5400.615 13.2 21.6 7.8 3.26 118.0
2019 Oct 2614 28 52.7-249 32 1.5650.642 13.5 21.2 8.0 3.13 117.3
2019 Oct 2714 33 41.9-24 434 1.5900.669 13.8 20.8 8.3 3.02 116.7
2019 Oct 2814 38 23.9-25 14 42 1.6160.695 14.1 20.3 8.5 2.92 116.0
2019 Oct 2914 42 58.8-25 44 35 1.6400.721 14.3 19.9 8.7 2.82 115.4
2019 Oct 3014 47 27.2-26 12 50 1.6650.746 14.5 19.4 8.8 2.73 114.8
2019 Oct 3114 51 49.4-26 39 36 1.6900.771 14.6 19.0 9.0 2.65 114.2
2019 Nov114 565.6-274 59 1.7140.795 14.7 18.5 9.2 2.56 113.7
2019 Nov2150 16.2-27 293 1.7380.819 14.8 18.1 9.3 2.49 113.1
2019 Nov3154 21.3-27 51 55 1.7620.843 14.9 17.6 9.5 2.42 112.6
2019 Nov4158 21.4-28 13 40 1.7860.866 14.9 17.2 9.6 2.35 112.1
2019 Nov515 12 16.5-28 34 21 1.8090.889 14.9 16.7 9.8 2.29 111.6
2019 Nov615 166.9-28 542 1.8330.912 14.9 16.3 9.9 2.23 111.1
2019 Nov715 19 52.8-29 12 49 1.8560.934 14.9 15.9 10.0 2.17 110.6
2019 Nov815 23 34.4-29 30 43 1.8790.956 14.9 15.4 10.2 2.12 110.1
說明：
年、月、日 預報日期，以當日香港時間晚上20時 (即是世界時12時)
赤經 曆元 2000年位置 (單位：時、分、秒 )
赤緯 曆元 2000年位置 (單位：度、分、秒 )
距地 彗星距離地球 (單位：天文單位)
距日 彗星距離太陽 (單位：天文單位)
離角 彗星離開太陽的角度 (單位：度)
Phase 太陽、彗星、地球之間夾角 (單位：度)
光度 彗星總光度 (單位：星等)
"/min 彗星在天區移動速度 (單位：每分鐘移動角秒)
PA 彗星移動天極方位角 (單位：度)
彗星軌道根數
T 通過近日點的動力時時間 (以年、月、日及日之小數表示)
q 近日點距離 (單位：天文單位)
e 軌道偏心率 (橢圓：0 < e < 1；拋物線：e = 1；雙曲線：1 < e)
Peri. 近日點幅角 (單位：度)
Node 升交點黃道經度 (單位：度)
Incl. 軌道傾斜角 (單位：度)
布朗平彗星 289P/Blanpain 星曆表
根據2015年5月18日的天文測量數據
T 2019 Dec 21.0180 TT
q0.959434 Peri. 9.8248
a3.045581 Node 68.9295
e0.684975 Incl. 5.8979
Ref: MPC102102
年月 日 hm s o'" deltaRSun ElongPhase 光度 "/minPA
2019 Oct4230 28.2-23 46 45 0.4961.428143.1 24.9 10.0 1.03 248.7
2019 Oct522 58 47.6-23 55 29 0.4911.419141.8 25.8 10.0 1.02 249.7
2019 Oct622 577.6-243 43 0.4871.410140.5 26.8 9.9 1.00 250.7
2019 Oct722 55 28.3-24 11 26 0.4821.401139.3 27.7 9.9 0.99 251.7
2019 Oct822 53 49.8-24 18 37 0.4781.392138.0 28.7 9.8 0.97 252.8
2019 Oct922 52 12.4-24 25 16 0.4741.383136.8 29.6 9.8 0.96 253.9
2019 Oct 1022 50 36.3-24 31 21 0.4701.374135.5 30.6 9.7 0.94 255.0
2019 Oct 1122 491.4-24 36 53 0.4661.365134.3 31.6 9.7 0.92 256.2
2019 Oct 1222 47 28.2-24 41 50 0.4621.356133.0 32.5 9.6 0.90 257.5
2019 Oct 1322 45 56.6-24 46 12 0.4581.347131.8 33.5 9.6 0.87 258.8
2019 Oct 1422 44 26.8-24 49 59 0.4541.338130.6 34.5 9.6 0.85 260.2
2019 Oct 1522 42 59.0-24 53 11 0.4511.329129.3 35.5 9.5 0.83 261.6
2019 Oct 1622 41 33.3-24 55 46 0.4471.321128.1 36.4 9.5 0.80 263.2
2019 Oct 1722 409.9-24 57 46 0.4441.312126.9 37.4 9.4 0.78 264.8
2019 Oct 1822 38 48.8-24 599 0.4401.303125.7 38.4 9.4 0.75 266.6
2019 Oct 1922 37 30.2-24 59 56 0.4371.295124.5 39.3 9.3 0.73 268.5
2019 Oct 2022 36 14.3-2505 0.4331.286123.3 40.3 9.3 0.70 270.5
2019 Oct 2122 351.1-24 59 39 0.4301.277122.2 41.3 9.2 0.68 272.7
2019 Oct 2222 33 50.8-24 58 35 0.4271.269121.0 42.3 9.2 0.65 275.0
2019 Oct 2322 32 43.4-24 56 54 0.4231.260119.8 43.2 9.1 0.63 277.6
2019 Oct 2422 31 39.0-24 54 37 0.4201.252118.7 44.2 9.1 0.60 280.4
2019 Oct 2522 30 37.8-24 51 43 0.4171.244117.6 45.1 9.0 0.58 283.4
2019 Oct 2622 29 39.8-24 48 11 0.4141.235116.4 46.1 9.0 0.56 286.7
2019 Oct 2722 28 45.2-24 444 0.4101.227115.3 47.1 9.0 0.53 290.2
2019 Oct 2822 27 53.9-24 39 19 0.4071.219114.2 48.0 8.9 0.51 294.1
2019 Oct 2922 276.0-24 33 58 0.4041.211113.2 49.0 8.9 0.50 298.3
2019 Oct 3022 26 21.6-24 281 0.4011.203112.1 49.9 8.8 0.48 302.8
2019 Oct 3122 25 40.7-24 21 28 0.3981.195111.0 50.9 8.8 0.47 307.6
2019 Nov122 253.4-24 14 19 0.3941.187110.0 51.8 8.7 0.46 312.6
2019 Nov222 24 29.5-246 34 0.3911.179109.0 52.7 8.7 0.45 317.7
2019 Nov322 23 59.2-23 58 13 0.3881.171108.0 53.7 8.6 0.45 323.0
2019 Nov422 23 32.4-23 49 17 0.3841.164107.0 54.6 8.6 0.45 328.2
2019 Nov522 239.0-23 39 45 0.3811.156106.0 55.6 8.5 0.46 333.3
2019 Nov622 22 49.2-23 29 37 0.3781.149105.0 56.5 8.5 0.47 338.3
2019 Nov722 22 32.8-23 18 55 0.3741.141104.0 57.4 8.4 0.48 343.0
2019 Nov822 22 19.8-237 36 0.3711.134103.1 58.3 8.4 0.50 347.4
2019 Nov922 22 10.2-22 55 42 0.3671.127102.2 59.3 8.3 0.51 351.5
2019 Nov 1022 223.9-22 43 12 0.3641.119101.2 60.2 8.3 0.54 355.2
2019 Nov 1122 220.8-22 306 0.3601.112100.3 61.1 8.2 0.56 358.6
2019 Nov 1222 221.1-22 16 24 0.3561.106 99.4 62.0 8.2 0.58 1.7
2019 Nov 1322 224.5-2224 0.3521.099 98.6 62.9 8.1 0.61 4.5
2019 Nov 1422 22 11.0-21 477 0.3491.092 97.7 63.9 8.1 0.64 7.0
2019 Nov 1522 22 20.7-21 31 33 0.3451.086 96.8 64.8 8.0 0.67 9.3
2019 Nov 1622 22 33.4-21 15 19 0.3411.079 96.0 65.7 8.0 0.7011.3
2019 Nov 1722 22 49.1-20 58 27 0.3371.073 95.2 66.6 7.9 0.7413.1
2019 Nov 1822 237.7-20 40 54 0.3331.067 94.4 67.5 7.9 0.7714.7
2019 Nov 1922 23 29.2-20 22 40 0.3281.061 93.6 68.4 7.8 0.8116.2
2019 Nov 2022 23 53.6-203 43 0.3241.055 92.8 69.3 7.8 0.8417.4
2019 Nov 2122 24 20.9-19 443 0.3201.049 92.0 70.3 7.7 0.8818.6
2019 Nov 2222 24 50.9-19 23 38 0.3161.043 91.2 71.2 7.7 0.9219.6
2019 Nov 2322 25 23.7-192 26 0.3111.038 90.5 72.1 7.6 0.9620.5
2019 Nov 2422 25 59.2-18 40 26 0.3071.033 89.8 73.0 7.6 1.0021.3
2019 Nov 2522 26 37.3-18 17 36 0.3021.027 89.0 73.9 7.5 1.0422.0
2019 Nov 2622 27 18.1-17 53 55 0.2971.022 88.3 74.8 7.5 1.0922.5
2019 Nov 2722 281.5-17 29 19 0.2931.018 87.6 75.7 7.4 1.1323.0
2019 Nov 2822 28 47.5-173 47 0.2881.013 87.0 76.5 7.4 1.1823.4
2019 Nov 2922 29 35.9-16 37 16 0.2831.009 86.3 77.4 7.3 1.2323.8
2019 Nov 3022 30 26.8-169 44 0.2781.004 85.6 78.3 7.2 1.2824.0
2019 Dec122 31 20.0-15 417 0.2731.000 85.0 79.2 7.2 1.3324.2
2019 Dec222 32 15.7-15 11 22 0.2680.996 84.4 80.1 7.1 1.3924.3
2019 Dec322 33 13.7-14 40 25 0.2630.992 83.8 80.9 7.1 1.4424.4
2019 Dec422 34 13.9-148 12 0.2580.989 83.2 81.8 7.0 1.5024.4
2019 Dec522 35 16.5-13 34 39 0.2530.985 82.6 82.6 7.0 1.5724.3
2019 Dec622 36 21.3-12 59 41 0.2480.982 82.1 83.5 6.9 1.6324.2
2019 Dec722 37 28.4-12 23 13 0.2430.979 81.5 84.3 6.8 1.7024.1
2019 Dec822 38 37.8-11 458 0.2370.976 81.0 85.1 6.8 1.7723.9
2019 Dec922 39 49.6-115 20 0.2320.974 80.5 85.9 6.7 1.8523.7
2019 Dec 1022 413.7-10 23 41 0.2270.972 80.0 86.7 6.7 1.9423.5
2019 Dec 1122 42 20.2- 9 405 0.2210.969 79.6 87.5 6.6 2.0223.2
2019 Dec 1222 43 39.2- 8 54 22 0.2160.967 79.1 88.2 6.5 2.1223.0
2019 Dec 1322 450.9- 86 22 0.2100.966 78.7 88.9 6.5 2.2222.7
2019 Dec 1422 46 25.4- 7 15 56 0.2050.964 78.4 89.6 6.4 2.3322.4
2019 Dec 1522 47 52.9- 6 22 50 0.1990.963 78.0 90.3 6.3 2.4522.1
2019 Dec 1622 49 23.5- 5 26 52 0.1940.962 77.7 90.9 6.3 2.5821.8
2019 Dec 1722 50 57.6- 4 27 48 0.1880.961 77.4 91.5 6.2 2.7221.5
2019 Dec 1822 52 35.6- 3 25 22 0.1830.960 77.2 92.1 6.1 2.8721.2
2019 Dec 1922 54 17.7- 2 19 15 0.1780.960 77.0 92.6 6.1 3.0421.0
2019 Dec 2022 564.4- 19 10 0.1720.959 76.9 93.1 6.0 3.2220.7
2019 Dec 2122 57 56.2 05 17 0.1670.959 76.8 93.5 5.9 3.4120.5
2019 Dec 2222 59 53.8 1 24 28 0.1610.960 76.8 93.8 5.9 3.6320.3
2019 Dec 23231 57.8 2 48 48 0.1560.960 76.8 94.1 5.8 3.8620.1
2019 Dec 242349.0 4 18 47 0.1510.961 76.9 94.3 5.7 4.1219.9
2019 Dec 25236 28.4 5 54 55 0.1460.962 77.1 94.4 5.6 4.4019.8
2019 Dec 26238 57.0 7 37 44 0.1410.963 77.4 94.3 5.6 4.7119.7
2019 Dec 2723 11 36.2 9 27 50 0.1360.964 77.9 94.2 5.5 5.0419.6
2019 Dec 2823 14 27.5 11 25 48 0.1310.966 78.4 94.0 5.4 5.4019.6
2019 Dec 2923 17 32.7 13 32 18 0.1260.967 79.0 93.6 5.4 5.8019.7
2019 Dec 3023 20 53.9 15 47 56 0.1220.969 79.8 93.1 5.3 6.2219.8
2019 Dec 3123 24 33.9 18 13 18 0.1180.971 80.8 92.4 5.2 6.6720.0
2020 Jan123 28 35.8 20 48 56 0.1140.974 81.9 91.5 5.2 7.1520.2
2020 Jan223 333.4 23 35 16 0.1100.976 83.2 90.4 5.1 7.6520.6
2020 Jan323 381.6 26 32 31 0.1060.979 84.7 89.1 5.0 8.1621.1
2020 Jan423 43 36.3 29 40 40 0.1030.982 86.4 87.6 5.0 8.6821.7
2020 Jan523 49 54.8 32 59 20 0.1000.985 88.3 85.9 4.9 9.1922.6
2020 Jan623 576.5 36 27 40 0.0980.989 90.4 84.0 4.9 9.6723.6
2020 Jan7 05 23.1 404 16 0.0950.992 92.6 81.9 4.9 10.1124.9
2020 Jan8 0 14 59.7 43 473 0.0940.996 95.1 79.5 4.8 10.4826.5
2020 Jan9 0 26 15.6 47 33 14 0.0931.000 97.7 77.0 4.8 10.7628.6
2020 Jan 10 0 39 35.1 51 19 17 0.0921.004100.4 74.4 4.8 10.9431.2
2020 Jan 11 0 55 29.1 550 52 0.0921.008103.2 71.7 4.9 11.0134.5 **最近地球**
2020 Jan 12 1 14 35.4 58 32 54 0.0921.013106.1 68.9 4.9 10.9538.6
2020 Jan 13 1 37 37.0 61 49 35 0.0931.017109.0 66.1 4.9 10.7743.7
2020 Jan 14 25 16.4 64 44 32 0.0941.022111.8 63.3 5.0 10.5050.0
2020 Jan 15 2 381.5 67 10 58 0.0961.027114.5 60.6 5.0 10.1357.7
2020 Jan 16 3 15 41.0 692 32 0.0991.032117.2 57.9 5.1 9.6966.6
2020 Jan 17 3 56 58.5 70 14 40 0.1011.038119.7 55.4 5.2 9.2176.5
2020 Jan 18 4 39 30.1 70 46 10 0.1051.043122.1 53.0 5.3 8.6986.7
2020 Jan 19 5 20 24.4 70 40 13 0.1081.049124.4 50.7 5.4 8.1796.6
2020 Jan 20 5 57 24.7 703 30 0.1121.055126.5 48.6 5.5 7.65 105.6
2020 Jan 21 6 29 24.1 6947 0.1161.060128.5 46.6 5.6 7.15 113.4
2020 Jan 22 6 56 17.7 67 49 39 0.1211.066130.4 44.7 5.7 6.66 119.9
2020 Jan 23 7 18 36.6 66 26 14 0.1261.073132.1 42.9 5.8 6.21 125.4
2020 Jan 24 7 373.9 64 58 19 0.1311.079133.7 41.3 5.9 5.78 129.9
2020 Jan 25 7 52 22.3 63 28 59 0.1361.085135.2 39.7 6.0 5.38 133.7
2020 Jan 26 858.8 620 16 0.1421.092136.6 38.3 6.1 5.02 136.9
2020 Jan 27 8 15 53.4 60 33 28 0.1481.099137.9 37.0 6.3 4.68 139.6
2020 Jan 28 8 250.0 599 20 0.1531.105139.1 35.7 6.4 4.37 142.0
2020 Jan 29 8 32 47.1 57 48 20 0.1601.112140.2 34.5 6.5 4.09 144.0
2020 Jan 30 8 39 29.6 56 30 39 0.1661.119141.2 33.4 6.6 3.83 145.8
2020 Jan 31 8 45 19.0 55 16 22 0.1721.126142.2 32.4 6.7 3.59 147.4
2020 Feb1 8 50 24.2 545 26 0.1791.134143.1 31.4 6.8 3.37 148.8
2020 Feb2 8 54 52.7 52 57 44 0.1861.141144.0 30.5 6.9 3.18 150.1
2020 Feb3 8 58 50.3 51 53 10 0.1931.148144.8 29.7 7.0 3.00 151.3
2020 Feb4 92 21.7 50 51 33 0.2001.156145.5 28.9 7.1 2.83 152.4
2020 Feb5 95 30.7 49 52 44 0.2071.163146.2 28.2 7.2 2.68 153.4
2020 Feb6 98 20.7 48 56 33 0.2141.171146.8 27.5 7.3 2.54 154.3
2020 Feb7 9 10 54.1 482 51 0.2211.179147.3 26.8 7.4 2.41 155.1
2020 Feb8 9 13 13.2 47 11 28 0.2291.187147.9 26.2 7.5 2.30 155.9
2020 Feb9 9 15 19.9 46 22 14 0.2371.194148.3 25.7 7.6 2.19 156.6
2020 Feb 10 9 17 15.8 45 352 0.2441.202148.8 25.2 7.7 2.09 157.2
2020 Feb 11 9 192.2 44 49 44 0.2521.210149.1 24.7 7.8 2.00 157.8
2020 Feb 12 9 20 40.2 446 11 0.2601.219149.4 24.3 7.9 1.91 158.4
2020 Feb 13 9 22 10.8 43 24 18 0.2691.227149.7 23.9 8.0 1.84 158.9
2020 Feb 14 9 23 35.0 42 43 57 0.2771.235150.0 23.6 8.1 1.76 159.4
2020 Feb 15 9 24 53.6 4253 0.2851.243150.1 23.3 8.2 1.70 159.8
2020 Feb 16 9 267.1 41 27 29 0.2941.252150.3 23.0 8.3 1.64 160.1
2020 Feb 17 9 27 16.3 40 51 11 0.3031.260150.4 22.8 8.4 1.58 160.4
2020 Feb 18 9 28 21.6 40 163 0.3111.268150.4 22.6 8.5 1.53 160.7
2020 Feb 19 9 29 23.5 39 422 0.3201.277150.5 22.4 8.6 1.48 160.9
2020 Feb 20 9 30 22.6 3994 0.3291.286150.4 22.3 8.7 1.43 161.0
2020 Feb 21 9 31 19.1 38 374 0.3391.294150.4 22.2 8.8 1.39 161.1
2020 Feb 22 9 32 13.4 3860 0.3481.303150.3 22.1 8.9 1.35 161.1
2020 Feb 23 9 335.8 37 35 47 0.3571.312150.2 22.0 8.9 1.31 161.1
2020 Feb 24 9 33 56.6 376 23 0.3671.320150.0 22.0 9.0 1.28 161.0
2020 Feb 25 9 34 46.0 36 37 46 0.3771.329149.8 22.0 9.1 1.25 160.9
2020 Feb 26 9 35 34.2 369 53 0.3871.338149.6 22.0 9.2 1.22 160.7
2020 Feb 27 9 36 21.5 35 42 41 0.3971.347149.3 22.0 9.3 1.19 160.5
2020 Feb 28 9 378.1 35 169 0.4071.356149.0 22.1 9.4 1.16 160.2
2020 Feb 29 9 37 53.9 34 50 14 0.4171.364148.7 22.2 9.5 1.14 159.9
2020 Mar1 9 38 39.3 34 24 54 0.4281.373148.4 22.2 9.5 1.11 159.6
2020 Mar2 9 39 24.3 3408 0.4381.382148.0 22.3 9.6 1.09 159.2
2020 Mar3 9 409.0 33 35 55 0.4491.391147.6 22.4 9.7 1.07 158.8
2020 Mar4 9 40 53.6 33 12 12 0.4601.400147.2 22.6 9.8 1.05 158.4
2020 Mar5 9 41 38.1 32 48 58 0.4711.409146.8 22.7 9.9 1.03 157.9
2020 Mar6 9 42 22.5 32 26 12 0.4821.418146.3 22.8 9.9 1.02 157.4
2020 Mar7 9 437.0 323 53 0.4931.428145.9 23.0 10.0 1.00 156.9
說明：
年、月、日 預報日期，以當日香港時間晚上20時 (即是世界時12時)
赤經 曆元 2000年位置 (單位：時、分、秒 )
赤緯 曆元 2000年位置 (單位：度、分、秒 )
距地 彗星距離地球 (單位：天文單位)
距日 彗星距離太陽 (單位：天文單位)
離角 彗星離開太陽的角度 (單位：度)
Phase 太陽、彗星、地球之間夾角 (單位：度)
光度 彗星總光度 (單位：星等)
"/min 彗星在天區移動速度 (單位：每分鐘移動角秒)
PA 彗星移動天極方位角 (單位：度)
彗星軌道根數
T 通過近日點的動力時時間 (以年、月、日及日之小數表示)
q 近日點距離 (單位：天文單位)
e 軌道偏心率 (橢圓：0 < e < 1；拋物線：e = 1；雙曲線：1 < e)
Peri. 近日點幅角 (單位：度)
Node 升交點黃道經度 (單位：度)
Incl. 軌道傾斜角 (單位：度)
泛星彗星 C/2017 T2 PanSTARRS 星曆表
根據2018年11月27日的天文測量數據
T 2020 May4.9006 TT
q1.614580 Peri.93.0019
z0.000087 Node 64.3783
e0.999859 Incl.57.2364
Ref: MPC112391
年月 日 hm s o'" deltaRSun ElongPhase 光度 "/minPA
2019 Dec6 4 433.8 48 21 49 1.6012.524154.1 9.8 10.0 1.40 310.1
2019 Dec7 4 40 27.3 48 43 18 1.5942.515153.7 10.0 10.0 1.40 309.3
2019 Dec8 4 37 47.4 494 29 1.5872.506153.3 10.2 10.0 1.41 308.5
2019 Dec9 4 354.1 49 25 21 1.5802.497152.8 10.4 10.0 1.41 307.6
2019 Dec 10 4 32 17.6 49 45 51 1.5742.488152.3 10.6 9.9 1.41 306.8
2019 Dec 11 4 29 27.9 5060 1.5682.479151.6 10.9 9.9 1.41 306.0
2019 Dec 12 4 26 35.2 50 25 45 1.5622.470151.0 11.2 9.9 1.41 305.2
2019 Dec 13 4 23 39.7 50 455 1.5572.460150.3 11.4 9.9 1.41 304.4
2019 Dec 14 4 20 41.5 5140 1.5522.451149.5 11.8 9.8 1.41 303.5
2019 Dec 15 4 17 40.9 51 22 27 1.5472.442148.7 12.1 9.8 1.41 302.7
2019 Dec 16 4 14 37.9 51 40 27 1.5432.433147.8 12.4 9.8 1.40 301.9
2019 Dec 17 4 11 32.8 51 57 57 1.5392.424146.9 12.8 9.8 1.39 301.1
2019 Dec 18 48 25.8 52 14 58 1.5362.415146.0 13.2 9.8 1.39 300.2
2019 Dec 19 45 17.2 52 31 28 1.5332.406145.0 13.5 9.7 1.38 299.4
2019 Dec 20 427.1 52 47 27 1.5302.397144.1 13.9 9.7 1.37 298.6
2019 Dec 21 3 58 55.9 532 54 1.5282.388143.1 14.3 9.7 1.36 297.8
2019 Dec 22 3 55 43.7 53 17 49 1.5262.379142.0 14.7 9.7 1.35 297.0
2019 Dec 23 3 52 30.9 53 32 11 1.5242.370141.0 15.1 9.7 1.33 296.2
2019 Dec 24 3 49 17.7 53 461 1.5222.361139.9 15.6 9.6 1.32 295.4
2019 Dec 25 3 464.4 53 59 19 1.5212.353138.8 16.0 9.6 1.30 294.6
2019 Dec 26 3 42 51.2 54 124 1.5202.344137.8 16.4 9.6 1.29 293.9
2019 Dec 27 3 39 38.4 54 24 17 1.5202.335136.7 16.8 9.6 1.27 293.1
2019 Dec 28 3 36 26.3 54 35 59 1.5202.326135.6 17.2 9.6 1.25 292.4 **最近地球**
2019 Dec 29 3 33 15.2 54 479 1.5202.317134.4 17.6 9.6 1.23 291.7
2019 Dec 30 3 305.3 54 57 49 1.5202.308133.3 18.1 9.5 1.21 291.0
2019 Dec 31 3 26 56.8 557 59 1.5212.300132.2 18.5 9.5 1.19 290.3
2020 Jan1 3 23 50.1 55 17 40 1.5212.291131.1 18.9 9.5 1.17 289.6
2020 Jan2 3 20 45.3 55 26 52 1.5232.282130.0 19.3 9.5 1.15 289.0
2020 Jan3 3 17 42.6 55 35 37 1.5242.273128.8 19.7 9.5 1.13 288.4
2020 Jan4 3 14 42.4 55 43 56 1.5252.265127.7 20.1 9.5 1.10 287.8
2020 Jan5 3 11 44.7 55 51 50 1.5272.256126.6 20.5 9.5 1.08 287.3
2020 Jan6 38 49.9 55 59 20 1.5292.248125.5 20.9 9.4 1.06 286.8
2020 Jan7 35 58.0 566 27 1.5312.239124.4 21.3 9.4 1.03 286.3
2020 Jan8 339.2 56 13 12 1.5342.230123.3 21.6 9.4 1.01 285.8
2020 Jan9 30 23.8 56 19 36 1.5362.222122.2 22.0 9.4 0.98 285.4
2020 Jan 10 2 57 41.8 56 25 42 1.5392.213121.1 22.4 9.4 0.96 285.0
2020 Jan 11 2 553.3 56 31 30 1.5422.205120.0 22.7 9.4 0.93 284.7
2020 Jan 12 2 52 28.6 56 371 1.5452.196118.9 23.1 9.4 0.90 284.4
2020 Jan 13 2 49 57.7 56 42 16 1.5492.188117.8 23.4 9.3 0.88 284.1
2020 Jan 14 2 47 30.6 56 47 18 1.5522.179116.8 23.8 9.3 0.85 283.9
2020 Jan 15 2 457.6 56 526 1.5552.171115.7 24.1 9.3 0.83 283.7
2020 Jan 16 2 42 48.7 56 56 44 1.5592.163114.6 24.4 9.3 0.80 283.7
2020 Jan 17 2 40 33.9 571 11 1.5632.154113.6 24.7 9.3 0.77 283.6
2020 Jan 18 2 38 23.3 575 29 1.5672.146112.6 25.0 9.3 0.75 283.7
2020 Jan 19 2 36 17.0 579 40 1.5712.138111.6 25.3 9.3 0.72 283.8
2020 Jan 20 2 34 15.0 57 13 44 1.5752.130110.5 25.6 9.3 0.70 283.9
2020 Jan 21 2 32 17.4 57 17 43 1.5792.122109.5 25.9 9.3 0.67 284.2
2020 Jan 22 2 30 24.1 57 21 38 1.5832.113108.5 26.2 9.2 0.64 284.6
2020 Jan 23 2 28 35.2 57 25 30 1.5882.105107.6 26.5 9.2 0.62 285.0
2020 Jan 24 2 26 50.7 57 29 21 1.5922.097106.6 26.7 9.2 0.59 285.6
2020 Jan 25 2 25 10.6 57 33 12 1.5962.089105.6 27.0 9.2 0.57 286.3
2020 Jan 26 2 23 34.9 57 373 1.6012.081104.7 27.2 9.2 0.55 287.1
2020 Jan 27 2 223.5 57 40 55 1.6052.073103.7 27.5 9.2 0.52 288.1
2020 Jan 28 2 20 36.4 57 44 50 1.6102.065102.8 27.7 9.2 0.50 289.2
2020 Jan 29 2 19 13.7 57 48 49 1.6152.057101.9 27.9 9.2 0.48 290.5
2020 Jan 30 2 17 55.2 57 52 52 1.6192.050101.0 28.1 9.2 0.46 292.0
2020 Jan 31 2 16 41.0 57 570 1.6242.042100.1 28.4 9.2 0.44 293.6
2020 Feb1 2 15 31.0 581 15 1.6292.034 99.2 28.6 9.1 0.42 295.5
2020 Feb2 2 14 25.1 585 36 1.6332.026 98.4 28.8 9.1 0.40 297.6
2020 Feb3 2 13 23.4 58 105 1.6382.019 97.5 29.0 9.1 0.38 300.0
2020 Feb4 2 12 25.7 58 14 41 1.6422.011 96.6 29.1 9.1 0.36 302.6
2020 Feb5 2 11 32.0 58 19 27 1.6472.003 95.8 29.3 9.1 0.35 305.5
2020 Feb6 2 10 42.4 58 24 22 1.6511.996 95.0 29.5 9.1 0.33 308.7
2020 Feb7 29 56.6 58 29 27 1.6561.988 94.2 29.6 9.1 0.32 312.1
2020 Feb8 29 14.8 58 34 42 1.6611.981 93.4 29.8 9.1 0.31 315.8
2020 Feb9 28 36.8 58 408 1.6651.973 92.6 30.0 9.1 0.30 319.7
2020 Feb 10 282.6 58 45 45 1.6691.966 91.8 30.1 9.0 0.30 323.8
2020 Feb 11 27 32.2 58 51 34 1.6741.959 91.1 30.2 9.0 0.29 328.1
2020 Feb 12 275.5 58 57 35 1.6781.951 90.3 30.4 9.0 0.29 332.4
2020 Feb 13 26 42.6 593 49 1.6821.944 89.6 30.5 9.0 0.29 336.8
2020 Feb 14 26 23.3 59 10 15 1.6861.937 88.9 30.6 9.0 0.29 341.2
2020 Feb 15 267.7 59 16 54 1.6911.930 88.1 30.8 9.0 0.29 345.4
2020 Feb 16 25 55.7 59 23 47 1.6951.923 87.4 30.9 9.0 0.30 349.5
2020 Feb 17 25 47.3 59 30 54 1.6991.916 86.7 31.0 9.0 0.30 353.4
2020 Feb 18 25 42.5 59 38 15 1.7031.909 86.1 31.1 9.0 0.31 357.1
2020 Feb 19 25 41.2 59 45 51 1.7061.902 85.4 31.2 9.0 0.32 0.5
2020 Feb 20 25 43.5 59 53 41 1.7101.895 84.7 31.3 8.9 0.33 3.7
2020 Feb 21 25 49.3 601 46 1.7141.889 84.1 31.4 8.9 0.34 6.6
2020 Feb 22 25 58.6 60 106 1.7171.882 83.5 31.5 8.9 0.36 9.2
2020 Feb 23 26 11.4 60 18 42 1.7211.875 82.9 31.6 8.9 0.3711.7
2020 Feb 24 26 27.6 60 27 33 1.7241.869 82.2 31.7 8.9 0.3913.9
2020 Feb 25 26 47.3 60 36 40 1.7271.862 81.7 31.7 8.9 0.4015.9
2020 Feb 26 27 10.5 60 462 1.7311.856 81.1 31.8 8.9 0.4217.7
2020 Feb 27 27 37.1 60 55 41 1.7341.849 80.5 31.9 8.9 0.4319.4
2020 Feb 28 287.2 615 36 1.7371.843 79.9 32.0 8.9 0.4520.9
2020 Feb 29 28 40.8 61 15 46 1.7391.837 79.4 32.0 8.8 0.4622.3
2020 Mar1 29 17.8 61 26 13 1.7421.830 78.9 32.1 8.8 0.4823.6
2020 Mar2 29 58.3 61 36 56 1.7451.824 78.3 32.2 8.8 0.5024.8
2020 Mar3 2 10 42.2 61 47 56 1.7471.818 77.8 32.2 8.8 0.5225.9
2020 Mar4 2 11 29.7 61 59 12 1.7501.812 77.3 32.3 8.8 0.5326.9
2020 Mar5 2 12 20.8 62 10 44 1.7521.806 76.9 32.3 8.8 0.5527.9
2020 Mar6 2 13 15.4 62 22 32 1.7541.800 76.4 32.4 8.8 0.5728.7
2020 Mar7 2 14 13.7 62 34 36 1.7561.795 75.9 32.4 8.8 0.5829.5
2020 Mar8 2 15 15.6 62 46 56 1.7581.789 75.5 32.5 8.8 0.6030.3
2020 Mar9 2 16 21.3 62 59 33 1.7601.783 75.0 32.5 8.7 0.6231.0
2020 Mar 10 2 17 30.7 63 12 25 1.7611.778 74.6 32.6 8.7 0.6431.7
2020 Mar 11 2 18 44.0 63 25 33 1.7631.772 74.2 32.6 8.7 0.6532.4
2020 Mar 12 2 201.3 63 38 57 1.7641.767 73.8 32.7 8.7 0.6733.0
2020 Mar 13 2 21 22.6 63 52 36 1.7651.761 73.4 32.7 8.7 0.6933.6
2020 Mar 14 2 22 48.1 646 31 1.7671.756 73.0 32.8 8.7 0.7134.2
2020 Mar 15 2 24 17.8 64 20 41 1.7681.751 72.7 32.8 8.7 0.7334.8
2020 Mar 16 2 25 51.8 64 357 1.7691.746 72.3 32.9 8.7 0.7435.4
2020 Mar 17 2 27 30.4 64 49 48 1.7691.741 72.0 32.9 8.6 0.7635.9
2020 Mar 18 2 29 13.5 654 44 1.7701.736 71.6 33.0 8.6 0.7836.4
2020 Mar 19 2 311.5 65 19 54 1.7701.731 71.3 33.0 8.6 0.8037.0
2020 Mar 20 2 32 54.3 65 35 20 1.7711.726 71.0 33.1 8.6 0.8237.5
2020 Mar 21 2 34 52.2 65 50 59 1.7711.722 70.7 33.1 8.6 0.8338.0
2020 Mar 22 2 36 55.4 666 52 1.7711.717 70.4 33.2 8.6 0.8538.5
2020 Mar 23 2 394.0 66 230 1.7711.713 70.2 33.2 8.6 0.8739.0
2020 Mar 24 2 41 18.3 66 39 20 1.7711.708 69.9 33.2 8.6 0.8939.6
2020 Mar 25 2 43 38.4 66 55 54 1.7711.704 69.7 33.3 8.6 0.9140.1
2020 Mar 26 2 464.7 67 12 40 1.7711.700 69.4 33.3 8.5 0.9340.6
2020 Mar 27 2 48 37.2 67 29 38 1.7701.696 69.2 33.4 8.5 0.9441.2
2020 Mar 28 2 51 16.4 67 46 48 1.7701.692 69.0 33.4 8.5 0.9641.7
2020 Mar 29 2 542.6 6848 1.7691.688 68.8 33.5 8.5 0.9842.3
2020 Mar 30 2 56 55.9 68 21 39 1.7681.684 68.6 33.5 8.5 1.0042.9
2020 Mar 31 2 59 56.8 68 39 19 1.7681.680 68.4 33.6 8.5 1.0243.5
2020 Apr1 335.6 68 577 1.7671.676 68.2 33.6 8.5 1.0444.1
2020 Apr2 36 22.7 69 154 1.7651.673 68.1 33.7 8.5 1.0644.7
2020 Apr3 39 48.5 69 337 1.7641.669 67.9 33.7 8.5 1.0745.4
2020 Apr4 3 13 23.4 69 51 16 1.7631.666 67.8 33.8 8.4 1.0946.1
2020 Apr5 3 177.9 709 29 1.7621.663 67.7 33.8 8.4 1.1146.9
2020 Apr6 3 212.6 70 27 45 1.7601.660 67.5 33.9 8.4 1.1347.6
2020 Apr7 3 257.8 70 463 1.7581.656 67.4 33.9 8.4 1.1548.4
2020 Apr8 3 29 24.2 714 22 1.7571.654 67.4 34.0 8.4 1.1749.3
2020 Apr9 3 33 52.5 71 22 39 1.7551.651 67.3 34.0 8.4 1.1950.2
2020 Apr 10 3 38 33.1 71 40 53 1.7531.648 67.2 34.1 8.4 1.2151.1
2020 Apr 11 3 43 26.8 71 591 1.7511.645 67.1 34.1 8.4 1.2352.1
2020 Apr 12 3 48 34.2 72 172 1.7491.643 67.1 34.2 8.4 1.2553.1
2020 Apr 13 3 53 56.1 72 34 53 1.7471.640 67.0 34.3 8.4 1.2754.2
2020 Apr 14 3 59 33.2 72 52 32 1.7451.638 67.0 34.3 8.4 1.2955.4
2020 Apr 15 45 26.2 739 56 1.7431.636 67.0 34.4 8.3 1.3156.6
2020 Apr 16 4 11 35.8 73 271 1.7411.634 66.9 34.4 8.3 1.3357.9
2020 Apr 17 4 182.7 73 43 45 1.7381.632 66.9 34.5 8.3 1.3559.2
2020 Apr 18 4 24 47.7 7404 1.7361.630 66.9 34.5 8.3 1.3760.6
2020 Apr 19 4 31 51.5 74 15 54 1.7341.628 66.9 34.6 8.3 1.3962.1
2020 Apr 20 4 39 14.6 74 31 11 1.7311.626 67.0 34.7 8.3 1.4163.6
2020 Apr 21 4 46 57.7 74 45 50 1.7291.625 67.0 34.7 8.3 1.4365.3
2020 Apr 22 4 551.0 74 59 47 1.7261.623 67.0 34.8 8.3 1.4567.0
2020 Apr 23 53 25.0 75 12 58 1.7231.622 67.1 34.8 8.3 1.4768.8
2020 Apr 24 5 129.8 75 25 15 1.7211.621 67.1 34.9 8.3 1.4970.6
2020 Apr 25 5 21 15.3 75 36 35 1.7181.620 67.2 34.9 8.3 1.5172.6
2020 Apr 26 5 30 41.3 75 46 52 1.7161.619 67.2 35.0 8.3 1.5374.6
2020 Apr 27 5 40 27.1 75 55 59 1.7131.618 67.3 35.0 8.3 1.5576.8
2020 Apr 28 5 50 31.9 763 51 1.7101.617 67.4 35.1 8.3 1.5779.0
2020 Apr 29 60 54.6 76 10 23 1.7081.616 67.5 35.1 8.2 1.5981.2
2020 Apr 30 6 11 33.7 76 15 29 1.7051.616 67.6 35.2 8.2 1.6183.5
2020 May1 6 22 27.4 76 193 1.7021.615 67.7 35.2 8.2 1.6385.9
2020 May2 6 33 33.5 76 210 1.7001.615 67.8 35.3 8.2 1.6588.4
2020 May3 6 44 49.6 76 21 17 1.6971.615 67.9 35.3 8.2 1.6790.8
2020 May4 6 56 13.1 76 19 48 1.6951.615 68.0 35.4 8.2 1.6993.3
2020 May5 77 41.1 76 16 31 1.6921.615 68.1 35.4 8.2 1.7195.9
2020 May6 7 19 10.7 76 11 23 1.6901.615 68.2 35.5 8.2 1.7398.4
2020 May7 7 30 38.9 764 22 1.6871.615 68.3 35.5 8.2 1.75 100.9
2020 May8 7 422.8 75 55 26 1.6851.615 68.5 35.5 8.2 1.77 103.4
2020 May9 7 53 19.6 75 44 37 1.6821.616 68.6 35.6 8.2 1.79 105.9
2020 May 10 84 26.7 75 31 54 1.6801.616 68.7 35.6 8.2 1.81 108.3
2020 May 11 8 15 21.7 75 17 17 1.6781.617 68.9 35.6 8.2 1.83 110.7
2020 May 12 8 262.6 750 50 1.6761.618 69.0 35.7 8.2 1.85 113.0
2020 May 13 8 36 27.6 74 42 35 1.6741.619 69.2 35.7 8.2 1.87 115.2
2020 May 14 8 46 35.3 74 22 33 1.6721.620 69.3 35.7 8.2 1.89 117.4
2020 May 15 8 56 24.7 740 50 1.6701.621 69.5 35.7 8.2 1.91 119.5
2020 May 16 95 54.9 73 37 27 1.6681.622 69.6 35.8 8.2 1.93 121.5
2020 May 17 9 155.5 73 12 29 1.6671.624 69.8 35.8 8.2 1.95 123.4
2020 May 18 9 23 56.1 72 45 59 1.6651.625 69.9 35.8 8.2 1.97 125.2
2020 May 19 9 32 26.9 72 183 1.6641.627 70.1 35.8 8.2 1.99 127.0
2020 May 20 9 40 37.9 71 48 42 1.6631.628 70.3 35.8 8.2 2.00 128.6
2020 May 21 9 48 29.6 71 182 1.6611.630 70.4 35.8 8.2 2.02 130.2
2020 May 22 9 562.3 70 467 1.6601.632 70.6 35.8 8.2 2.04 131.7
2020 May 23103 16.7 70 130 1.6601.634 70.7 35.8 8.2 2.05 133.1
2020 May 2410 10 13.3 69 38 45 1.6591.636 70.9 35.8 8.2 2.07 134.4
2020 May 2510 16 52.9 693 25 1.6581.638 71.0 35.8 8.2 2.09 135.7
2020 May 2610 23 16.2 68 274 1.6581.641 71.2 35.8 8.2 2.10 136.9
2020 May 2710 29 23.8 67 49 45 1.6581.643 71.3 35.7 8.3 2.12 138.0
2020 May 2810 35 16.6 67 11 32 1.6581.646 71.5 35.7 8.3 2.13 139.1
2020 May 2910 40 55.3 66 32 28 1.6581.648 71.6 35.7 8.3 2.14 140.1
2020 May 3010 46 20.6 65 52 35 1.6591.651 71.8 35.7 8.3 2.16 141.0
2020 May 3110 51 33.1 65 11 57 1.6591.654 71.9 35.6 8.3 2.17 141.9
2020 Jun110 56 33.6 64 30 36 1.6601.657 72.0 35.6 8.3 2.18 142.7
2020 Jun2111 22.7 63 48 35 1.6611.660 72.2 35.6 8.3 2.19 143.5
2020 Jun31161.1 635 56 1.6621.663 72.3 35.5 8.3 2.20 144.3
2020 Jun411 10 29.2 62 22 42 1.6641.667 72.4 35.5 8.3 2.21 145.0
2020 Jun511 14 47.8 61 38 55 1.6651.670 72.5 35.4 8.3 2.22 145.6
2020 Jun611 18 57.3 60 54 37 1.6671.673 72.6 35.4 8.3 2.23 146.2
2020 Jun711 22 58.2 609 50 1.6691.677 72.8 35.3 8.4 2.24 146.8
2020 Jun811 26 51.0 59 24 38 1.6721.681 72.9 35.2 8.4 2.25 147.3
2020 Jun911 30 36.3 58 391 1.6741.684 73.0 35.2 8.4 2.26 147.8
2020 Jun 1011 34 14.3 57 531 1.6771.688 73.0 35.1 8.4 2.26 148.3
2020 Jun 1111 37 45.6 576 42 1.6801.692 73.1 35.0 8.4 2.27 148.7
2020 Jun 1211 41 10.5 56 203 1.6841.696 73.2 35.0 8.4 2.27 149.1
2020 Jun 1311 44 29.3 55 338 1.6871.700 73.3 34.9 8.4 2.27 149.5
2020 Jun 1411 47 42.5 54 45 59 1.6911.705 73.3 34.8 8.5 2.28 149.9
2020 Jun 1511 50 50.2 53 58 36 1.6951.709 73.4 34.7 8.5 2.28 150.2
2020 Jun 1611 53 52.8 53 112 1.7001.713 73.4 34.6 8.5 2.28 150.5
2020 Jun 1711 56 50.6 52 23 19 1.7041.718 73.5 34.5 8.5 2.28 150.7
2020 Jun 1811 59 43.9 51 35 27 1.7091.723 73.5 34.4 8.5 2.28 151.0
2020 Jun 19122 32.8 50 47 29 1.7141.727 73.5 34.3 8.5 2.28 151.2
2020 Jun 20125 17.7 49 59 27 1.7201.732 73.5 34.2 8.6 2.28 151.4
2020 Jun 21127 58.7 49 11 21 1.7261.737 73.5 34.1 8.6 2.28 151.6
2020 Jun 2212 10 36.0 48 23 14 1.7321.742 73.5 34.0 8.6 2.28 151.8
2020 Jun 2312 139.9 47 356 1.7381.747 73.5 33.9 8.6 2.27 151.9
2020 Jun 2412 15 40.4 46 470 1.7451.752 73.5 33.8 8.6 2.27 152.1
2020 Jun 2512 187.9 45 58 56 1.7511.757 73.5 33.7 8.7 2.26 152.2
2020 Jun 2612 20 32.3 45 10 56 1.7591.762 73.4 33.6 8.7 2.26 152.3
2020 Jun 2712 22 53.9 44 231 1.7661.768 73.4 33.4 8.7 2.25 152.4
2020 Jun 2812 25 12.8 43 35 13 1.7741.773 73.3 33.3 8.7 2.24 152.4
2020 Jun 2912 27 29.1 42 47 33 1.7821.779 73.2 33.2 8.8 2.24 152.5
2020 Jun 3012 29 43.0 4202 1.7901.784 73.2 33.1 8.8 2.23 152.5
2020 Jul112 31 54.6 41 12 40 1.7981.790 73.1 32.9 8.8 2.22 152.6
2020 Jul212 343.9 40 25 30 1.8071.796 73.0 32.8 8.8 2.21 152.6
2020 Jul312 36 11.2 39 38 31 1.8161.801 72.9 32.6 8.9 2.20 152.6
2020 Jul412 38 16.4 38 51 46 1.8251.807 72.8 32.5 8.9 2.19 152.6
2020 Jul512 40 19.6 385 14 1.8351.813 72.6 32.4 8.9 2.18 152.6
2020 Jul612 42 21.1 37 18 57 1.8451.819 72.5 32.2 8.9 2.17 152.6
2020 Jul712 44 20.8 36 32 55 1.8551.825 72.4 32.1 9.0 2.16 152.5
2020 Jul812 46 18.8 35 47 10 1.8651.831 72.2 31.9 9.0 2.14 152.5
2020 Jul912 48 15.3 351 42 1.8761.838 72.1 31.8 9.0 2.13 152.4
2020 Jul 1012 50 10.2 34 16 32 1.8871.844 71.9 31.6 9.0 2.12 152.3
2020 Jul 1112 523.7 33 31 40 1.8981.850 71.7 31.4 9.1 2.10 152.3
2020 Jul 1212 53 55.8 32 477 1.9091.857 71.5 31.3 9.1 2.09 152.2
2020 Jul 1312 55 46.6 322 54 1.9211.863 71.3 31.1 9.1 2.08 152.1
2020 Jul 1412 57 36.2 31 190 1.9331.870 71.1 31.0 9.1 2.06 152.0
2020 Jul 1512 59 24.5 30 35 28 1.9451.876 70.9 30.8 9.2 2.05 151.9
2020 Jul 16131 11.8 29 52 16 1.9571.883 70.7 30.6 9.2 2.03 151.7
2020 Jul 17132 57.9 299 26 1.9701.890 70.4 30.4 9.2 2.02 151.6
2020 Jul 18134 43.0 28 26 58 1.9821.897 70.2 30.3 9.3 2.01 151.5
2020 Jul 19136 27.1 27 44 52 1.9951.903 69.9 30.1 9.3 1.99 151.3
2020 Jul 20138 10.2 2739 2.0091.910 69.7 29.9 9.3 1.98 151.2
2020 Jul 21139 52.5 26 21 48 2.0221.917 69.4 29.7 9.4 1.96 151.0
2020 Jul 2213 11 33.8 25 40 51 2.0361.924 69.1 29.6 9.4 1.94 150.8
2020 Jul 2313 13 14.4 250 17 2.0491.931 68.9 29.4 9.4 1.93 150.7
2020 Jul 2413 14 54.1 24 206 2.0631.938 68.6 29.2 9.4 1.91 150.5
2020 Jul 2513 16 33.1 23 40 20 2.0781.946 68.3 29.0 9.5 1.90 150.3
2020 Jul 2613 18 11.3 230 57 2.0921.953 68.0 28.8 9.5 1.88 150.1
2020 Jul 2713 19 48.8 22 21 59 2.1071.960 67.6 28.6 9.5 1.87 149.9
2020 Jul 2813 21 25.6 21 43 24 2.1211.967 67.3 28.4 9.6 1.85 149.7
2020 Jul 2913 231.8 215 14 2.1361.975 67.0 28.2 9.6 1.84 149.5
2020 Jul 3013 24 37.4 20 27 27 2.1511.982 66.7 28.1 9.6 1.82 149.3
2020 Jul 3113 26 12.3 19 505 2.1671.990 66.3 27.9 9.7 1.80 149.1
2020 Aug113 27 46.7 19 138 2.1821.997 66.0 27.7 9.7 1.79 148.9
2020 Aug213 29 20.4 18 36 34 2.1982.005 65.6 27.5 9.7 1.77 148.6
2020 Aug313 30 53.7 180 24 2.2132.012 65.3 27.3 9.8 1.76 148.4
2020 Aug413 32 26.4 17 24 38 2.2292.020 64.9 27.1 9.8 1.74 148.2
2020 Aug513 33 58.7 16 49 17 2.2452.028 64.5 26.8 9.8 1.73 147.9
2020 Aug613 35 30.5 16 14 18 2.2622.035 64.1 26.6 9.9 1.71 147.7
2020 Aug713 371.8 15 39 44 2.2782.043 63.8 26.4 9.9 1.70 147.5
2020 Aug813 38 32.7 155 33 2.2942.051 63.4 26.2 9.9 1.68 147.2
2020 Aug913 403.2 14 31 45 2.3112.059 63.0 26.0 10.0 1.67 147.0
2020 Aug 1013 41 33.3 13 58 21 2.3282.067 62.6 25.8 10.0 1.66 146.7
2020 Aug 1113 433.0 13 25 19 2.3442.075 62.2 25.6 10.0 1.64 146.4
說明：
年、月、日 預報日期，以當日香港時間晚上20時 (即是世界時12時)
赤經 曆元 2000年位置 (單位：時、分、秒 )
赤緯 曆元 2000年位置 (單位：度、分、秒 )
距地 彗星距離地球 (單位：天文單位)
距日 彗星距離太陽 (單位：天文單位)
離角 彗星離開太陽的角度 (單位：度)
Phase 太陽、彗星、地球之間夾角 (單位：度)
光度 彗星總光度 (單位：星等)
"/min 彗星在天區移動速度 (單位：每分鐘移動角秒)
PA 彗星移動天極方位角 (單位：度)
彗星軌道根數
T 通過近日點的動力時時間 (以年、月、日及日之小數表示)
q 近日點距離 (單位：天文單位)
e 軌道偏心率 (橢圓：0 < e < 1；拋物線：e = 1；雙曲線：1 < e)
Peri. 近日點幅角 (單位：度)
Node 升交點黃道經度 (單位：度)
Incl. 軌道傾斜角 (單位：度)
岩本彗星 C/2018 Y1 Iwamoto星曆表
根據2018年12月31日的天文測量數據
T 2019 Feb6.5931 TT
q1.280472 Peri. 357.9477
z0.000000 Node147.2088
e1.000000 Incl. 160.4379
Ref: MPEC 2018-Y69
年月 日 hm s o'" deltaRSun ElongPhase 光度 "/minPA
2019 Jan 2913 19 50.9-15 47 52 0.6161.286104.5 47.8 10.0 4.04 302.8
2019 Jan 3013 13 53.1-14 520 0.5831.285107.2 47.1 9.9 4.55 303.1
2019 Jan 31137 12.6-13 48 24 0.5511.284110.2 46.1 9.8 5.14 303.4
2019 Feb112 59 43.1-12 35 41 0.5191.283113.3 44.9 9.7 5.83 303.8
2019 Feb212 51 16.9-11 12 14 0.4881.282116.8 43.3 9.5 6.64 304.2
2019 Feb312 41 45.3- 9 36 10 0.4581.281120.6 41.4 9.4 7.58 304.5
2019 Feb412 30 58.4- 7 45 22 0.4301.281124.8 39.2 9.2 8.67 304.9
2019 Feb512 18 44.9- 5 37 33 0.4031.281129.5 36.4 9.1 9.91 305.2
2019 Feb6124 52.7- 3 10 32 0.3781.280134.7 33.2 9.0 11.31 305.4
2019 Feb711 499.8- 0 22 31 0.3551.281140.5 29.4 8.8 12.83 305.5
2019 Feb811 31 24.9 2 479 0.3361.281146.8 24.9 8.7 14.41 305.4
2019 Feb911 11 30.2 6 17 13 0.3201.281153.8 19.9 8.6 15.94 305.0
2019 Feb 1010 49 24.1 103 31 0.3081.282161.1 14.4 8.5 17.23 304.2
2019 Feb 1110 25 14.6 13 58 30 0.3001.283168.6 8.7 8.5 18.12 302.9
2019 Feb 12 9 59 22.6 17 51 41 0.2981.284174.2 4.5 8.5 18.44 301.1**最近地球**
2019 Feb 13 9 32 22.2 21 31 29 0.3001.285171.3 6.7 8.5 18.13 298.8
2019 Feb 14 94 58.0 24 47 42 0.3081.286164.2 12.1 8.5 17.26 296.0
2019 Feb 15 8 37 58.8 27 33 50 0.3191.288156.9 17.5 8.6 15.96 293.0
2019 Feb 16 8 128.9 29 47 46 0.3351.289150.0 22.5 8.7 14.44 289.9
2019 Feb 17 7 482.1 31 31 11 0.3551.291143.6 27.0 8.9 12.86 286.8
2019 Feb 18 7 25 59.0 32 484 0.3771.293137.9 30.8 9.0 11.34 283.9
2019 Feb 19 767.4 33 43 15 0.4021.295132.7 34.1 9.1 9.94 281.1
2019 Feb 20 6 48 25.4 34 21 30 0.4291.298128.0 36.9 9.3 8.69 278.6
2019 Feb 21 6 32 45.1 34 46 55 0.4581.300123.8 39.2 9.4 7.60 276.4
2019 Feb 22 6 18 55.4 352 51 0.4881.303119.9 41.1 9.6 6.65 274.3
2019 Feb 23 66 44.0 35 11 52 0.5191.306116.5 42.7 9.7 5.84 272.6
2019 Feb 24 5 55 59.0 35 15 57 0.5511.309113.3 44.0 9.9 5.15 271.0
2019 Feb 25 5 46 29.2 35 16 31 0.5831.312110.4 45.0 10.0 4.55 269.6
說明：
年、月、日 預報日期，以當日香港時間晚上20時 (即是世界時12時)
赤經 曆元 2000年位置 (單位：時、分、秒 )
赤緯 曆元 2000年位置 (單位：度、分、秒 )
距地 彗星距離地球 (單位：天文單位)
距日 彗星距離太陽 (單位：天文單位)
離角 彗星離開太陽的角度 (單位：度)
Phase 太陽、彗星、地球之間夾角 (單位：度)
光度 彗星總光度 (單位：星等)
"/min 彗星在天區移動速度 (單位：每分鐘移動角秒)
PA 彗星移動天極方位角 (單位：度)
彗星軌道根數
T 通過近日點的動力時時間 (以年、月、日及日之小數表示)
q 近日點距離 (單位：天文單位)
e 軌道偏心率 (橢圓：0 < e < 1；拋物線：e = 1；雙曲線：1 < e)
Peri. 近日點幅角 (單位：度)
Node 升交點黃道經度 (單位：度)
Incl. 軌道傾斜角 (單位：度)
岩本彗星 C/2018 Y1 Iwamoto可見圖
Credit : CalSky SOHO彗星 322P/SOHO 可見圖
2019年8月黃昏
SOHO彗星 P/2008 Y12 SOHO 可見圖
2019年9月黃昏
布朗平彗星 289P/Blanpain 可見圖
2019年10月至12月黃昏
2020年1月至3月凌晨
2020年1月至3月黃昏
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