C/2012 F6 Lemmon
2013 Jan 24.66 UT; m1=6.6; Dia= 8’; DC= 4; 7x50 B [Chris Wyatt, Walcha, NSW,
Australia]
Coma appears circular, slight brightening to centre, no tail.
Comparison stars checked using Tycho-2 data in Guide 9.0; Method= M; Cat= TK
C/2011 L4 PANSTARRS
2013 Jan 24.74 UT; m1=7.2; Dia= 5’; DC= 6; 11x70 B [Chris Wyatt, Walcha, NSW,
Australia]
Twilight, tail to WSW, fan shaped WSW to ESE, tail more defined on the NW edge,
5’ in length on the longest side (WSW), ESE edge much shorter. Bright stellar
pseudo nucleus with diffuse and fainter outer coma.
Comparison stars checked using Tycho-2 data in Guide 9.0; Method= M; Cat= TK
C/2012 F6, 2013 Jan 24.83 UT; m1= 6.8; Dia= 7'; DC= 5; 10cm f4 refl (20x)[Andrew
Pearce, Nedlands, W. Australia].
C/2011 L4, 2013 Jan 24.83 UT; m1= 7.4; Dia= 2.8'; DC= 7; 10cm f4 refl
(20x)[Andrew Pearce, Nedlands, W. Australia].
1月24日 C/2012 F6 6.6-6.8 (平均6.7)预报11.3 C,2011L4 7.2-7.4 (平均7.3)预报7.5
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