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請問有冇業餘天文學家 量度 太陽系內/外 天體的可見光譜 ?

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發表於 2011-6-23 22:44:51 | 顯示全部樓層 |閱讀模式
大家好,
因為小弟手上剛有一部手提 UV/ Visible spectrometer
特然諗到, 可唔可能將 部 spectrometer 接上去望遠鏡上,
去觀測 太陽系內天體,  甚至其他較近星體 光譜呢?

但係, 在大氣層內 觀測 天體光譜 會受大氣影響嗎?
發表於 2011-6-24 20:35:27 | 顯示全部樓層
回復 1# bbloveaya

Is your UV/visible spectrometer from an analysis lab?  If so, it may be too bulky for amateur telescopes.
Moreover, your spectrometer most like have its own light source, sample holder and lastly the spectrometer itself.  Only the last part is useful for our purposes.  Thus you need to take away the light source and the sample holder parts, but keep the slit and the collimator part, to allow the light from your telescope to reach the slit.

Finally, your UV/visible spectrometer may be of the scanning type.  The advantage is there is no need for a camera to capture the spectrum and then make a plot because it will directly output a plot of the spectrum.

PTS
發表於 2011-6-24 20:38:35 | 顯示全部樓層
大家好,
因為小弟手上剛有一部手提 UV/ Visible spectrometer
特然諗到, 可唔可能將 部 spectrometer 接 ...
bbloveaya 發表於 2011-6-23 22:44


All earth-based spectrometer will output a spectrum that INCLUDE the atmospheric lines/bands.  The very first thing we need to do (i.e. after preliminary data treatment such as dark subtraction and flat field, etc) is to eliminate the atmospheric lines from the spectrum.

PTS
發表於 2011-6-26 23:29:41 | 顯示全部樓層
大家好,
因為小弟手上剛有一部手提 UV/ Visible spectrometer
特然諗到, 可唔可能將 部 spectrometer 接 ...
bbloveaya 發表於 2011-6-23 22:44


I am curious abou the UV/ Visible spectrometer you're using..... I have only seen the non-portable ones
 樓主| 發表於 2011-7-4 23:58:20 | 顯示全部樓層
回復 2# PTS

回復 4# Fabe

多謝PTS 兄 同 FABE兄 指教, 其實我手頭部PORTABLE SPECTROMETER 只係手掌咁大, 不過早幾日試下玩, 點知壞左...所以無得玩了
發表於 2011-7-6 15:21:26 | 顯示全部樓層
回復 5# bbloveaya

How bad is it? Can we repair it?

PTS
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