SWAN上的2011L4和2012F6
继续观望,哈哈,沙发1361192.gif Current comet magnitudes (January 21) and observable region (January 16)---------------------
Comet Magnitude Trend Observable When visible Last visual observation
Lemmon (2012 F6) 7 bright 25 N to 55 S best morning 2013 January
PanSTARRS (2011 L4) 7.5 bright 0 S to 55 S morning 2013 January
273P/Pons-Gambart (2012 V4) 9 fade 50 N to 20 N early morning 2013 January
LINEAR (2012 K5) 9.5 fade 75 N to 55 S best evening 2013 January
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http://www.ast.cam.ac.uk/~jds/
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