![]() Comet Lulin as seen on January 31st (top) and February 4th of 2009. | |
Discovery[1][2][3] | |
---|---|
Discovered by | Ye Quanzhi Lin Chi-Sheng |
Discovery site | Lulin Observatory (D35) 0.41-m Ritchey–Chrétien |
Discovery date | 11 July 2007 |
Designations | |
Comet Lulin CK07N030 | |
Orbital characteristics[4][5][6] | |
Epoch | 6 December 2008 (JD 2454806.5) |
Aphelion | ~64,000 AU (inbound) ~2,400 AU (outbound) |
Perihelion | 1.212 AU |
Semi-major axis | 1200 AU |
Eccentricity | 0.99998 |
Orbital period | 42,000 years (outbound) |
Inclination | 178.37° |
338.54° | |
Argument of periapsis | 136.86° |
Last perihelion | 10 January 2009[4] |
TJupiter | –1.365 |
Earth MOID | 0.211 AU |
Jupiter MOID | 0.101 AU |
Physical characteristics | |
Comet total magnitude (M1) | 10.2 |
4.5–5.0 (2009 apparition) |
Comet Lulin, formal designation C/2007 N3, Traditional Chinese:鹿林彗星) is a non-periodic comet. It was discovered by Ye Quanzhi and Lin Chi-Sheng from Lulin Observatory.[2][3][7] It peaked in brightness at magnitude between +4.5 and +5,[3][8][9][10] becoming visible to the naked eye,[11] and arrived at perigee for observers on Earth on February 24, 2009,[5] and at 0.411 AU (61.5 million km; 38.2 million mi) from Earth.[5]
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