C/2007 N3 Lulin 彗星の眼視観測 (1) 2009 Jan. 3.854UT, m1=7.4, Dia=3', DC=5, trans=4/5、10x70mmB (2) 2009 Jan.14.830UT, m1=6.5, Dia=8', DC=5, trans=3/5、10x70mmB 月明あり (3) 2009 Feb. 6.833UT, m1=6.0 Dia=10', DC=5, trans=3/5, 10x70B 中央集光がざらついた感じ。白っぽい (4) 2009 Mar. 2.444UT, m1=5.9, Dia=15', DC=4, trans=3/5, 10x70B