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Old 19-10-2010, 03:46 PM
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Outbackmanyep
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Comet Obs 17th & 19th October 2010

Comet 103P/ Hartley 2

2010 Oct 16.64 UT; m1= 6.7; Dia= 11'; DC= 5/6; 25cm L, f:5 (x39)
Coma large and diffuse with a small c/c, almost starlike. Coma slightly elongated to the North, no tail, enhances with Swan filter, slight interference by moonlight.
Comp Star= TYC 3347-498-1; Method= S; Cat= TJ

2010 Oct 16.64 UT; m1= 5.8; Dia= 30'; DC= 2; 7x50 B
Coma large and diffuse, no tail, slightly elongated to North.
Comp Star= TYC 3351-1507-1; Method= S; Cat= TJ

2010 Oct 18.71 UT; m1= 5.6; Dia= 30'; DC= 4; 7x50 B
Coma elongated to the North, no tail, central condensation tightening to centre, not quite stellar.
Comp Star= TYC 2902-3380-1; Method= S; Cat= TJ

2010 Oct 18.71 UT; m1= 4.7; Dia= 30'; DC= 1; 0.0 E (Naked eye)
Coma very diffuse and barely visible with naked eye using averted vision, comet was 9 degrees above local horizon at the time of observation, limiting mag 6.0 in the vicinity of the comet.
Comp Star= TYC 2418-1571-1 (Upsilon Aurigae); Method= S; Cat= TJ


Comet 10P/ Tempel 2

2010 Oct 16.62 UT; m1= 10.9; Dia= 5.5'; DC= 2; 25cm L, f:5 (x39)
No tail, coma diffuse, moonlight interference.
Comp Star= TYC 5853-786-1; Method= S; Cat= TJ


Cheers!
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Old 20-10-2010, 05:53 AM
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glenc (Glen)
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Congratulations. I wish I had seen Hartley naked eye.
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Old 20-10-2010, 09:04 AM
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I always look forward to reading your comet observations. Thank you for posting.
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Old 02-12-2010, 10:35 PM
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glenc (Glen)
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Apod

I like the APOD today. It show Comet Hartley with the OCs M46 and M47.
It also shows the PN NGC 2438 in M46, the faint OC NGC 2425 between M46 and M47 and Hartley's small tail points to the large OC NGC 2423.
http://antwrp.gsfc.nasa.gov/apod/ap101202.html
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