Comet 10P/Tempel and 103P/Hartley (+ 1 sketch)

Exoplanet occultation, asteroid occultation,
solar research, comet observation, astrometry, etc.
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Archimedes
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註冊時間: 週二 06 6月, 2006 23:19
來自: Hải Phòng
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Comet 10P/Tempel and 103P/Hartley (+ 1 sketch)

文章 Archimedes » 週六 14 8月, 2010 22:19

Hi all, I've made comet observations in the last consecutive five days, from Aug 09 to Aug 14. 10P/Tempel is an easy telescopic object of about 8m.5, while 103P/Hartley currently is pretty faint. However, the latter one will become favorable this fall well placed to northern hemisphere observers. According to current prediction, it might be naked eyed then.

Here'r some comet obs below:
10P/Tempel
10 2010 08 08.85 S 9.1 TK 20.0L 5 ?? 3 3 ICQ XX XU
 10 2010 08 09.85 S 8.8 TK 20.0L 5 ?? 7 4 ICQ XX XU
 10 2010 08 10.88 S 8.8 TK 20.0L 5 ?? 8 4 ICQ XX XU
 10 2010 08 12.82 M 8.6 TK 20.0L 5 ??  11.4 5 ICQ XX XU
(very clear sky)
 10 2010 08 13.88 S 8.6 TK 20.0L 5 50 5.9 3 ICQ XX XU
(close encounter with 8.76m HIP 6499 and thereby strong influence upon my estimates)

103P/Hartley:
103 2010 08 8.77 S[12.1 TA 20.0L 5 ?? ICQ XX XU
103 2010 08 9.75 S[12.3 TA 20.0L 5 ?? ICQ XX XU
103 2010 08 10.82 S 12.8:TA 20.0L 5 50 1 4 ICQ XX XU
103 2010 08 13.79 S 12.8 TA 20.0L 5 125 1.2 4 ICQ XX XU

Note that I'm puzzled by the true focal length and thus focal ratio of my 20cm Dob as well as the focal lenght of a wide-field eyepiece. So far I hasn't truly worked them out for I ran into several contradiction during my measurements... :( I'll be appreciate for receiving assistance or guides from whoever has experience of doing such before.
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Eddy So
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註冊時間: 週四 04 12月, 2008 22:35
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文章 Eddy So » 週六 14 8月, 2010 22:36

[Good Job] 你的畫功真好! [Good Job]

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