来自http://encke.jpl.nasa.gov/RecentObs.html#01Q4 的观测数据
2004 May 15.18 UT: m1=3.4, DC=7,Tail: >5 deg...10x50 B...Charles S. Morris (Fillmore, CA)
2004 May 16.21 UT: m1=3.5, Dia.=13',DC=7,Tail: >3 deg...10x50 B...Charles S. Morris (Fillmore, CA) [Poor conditions - high clouds]
2004 May 17.18 UT: m1=3.9, Dia.=12', DC=6, Tail: ~4 deg...10x50 B...Charles S. Morris (Fillmore, CA) [High clouds]
2004 May 19.18 UT: m1=3.9, Dia=13', DC=6, Tail ~5 deg. in PA 107 deg...10x50 B...Charles S. Morris (Fillmore, CA)
2004 May 22.20 UT: m1=4.5, DC=6, Tail~5 deg...10x50 B...Charles S. Morris (Fillmore, CA)
2004 May 23.20 UT: m1=4.5, Dia.=11', DC=6, Tail~5 deg...10x50 B...Charles S. Morris (Fillmore, CA) [Gas tail ~ 5 deg. Wide dust fain...leading edge at least 2 deg long.]
2004 May 25.19 UT: m1=5.0, Dia.=11', DC=6, Tail~3.5 deg...10x50 B...Charles S. Morris (Fillmore, CA) [Moon...hint of dust fan]
这里选取了一个人的数据, 可以说明问题. |
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置顶卡
变色卡
千斤顶
显身卡