Venus 2020/04/27

C.L.Chan

金星, 這幾個星期, 在日落後的西面天空, 她閃耀著-4等的極亮光芒. 這顆太白金星, 在黃昏時她又名長庚, 若在日出前見到她, 就叫她做啟明. 今晚她的位相似新月, 有0.28, 是日心說的一項重要證據.

Venus 2020/04/27 UT: 11h34m, Telescope TEC Maksutov-CassegrainMC200/20, D=20cm, F.L.=400cm, with 2x Powermate , E.F.L.= 8 meters, LosmandyG-11 Equatorial Mount with motor drive. Camera QHY 5III 224 Color Cam, Capturewith FireCapture, Shoot at Gamma=112, Gain=41, Expo= 0.1ms/frame, frame rate 49frames/sec, avi format, stack and process 40% best frames in 2667 frames,­ withSoftware AstroStackert 3 , wavelet with RegiStax V.6 ,  Atmospheric condition : Transparent : 8­/10,Seeing : 8/10. Equipment borrowedfrom Mr. Ng. Photo taken at Kennedy Town堅尼地城, Hong Kong.