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Old 19-10-2010, 03:46 PM
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Outbackmanyep
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Join Date: Oct 2006
Location: Walcha , NSW
Posts: 1,652
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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