209P/LINEAR
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| Discovery | |
|---|---|
| Discovered by |
LINEAR 1.0-m reflector[1] |
| Discovery date |
3 February 2004 (asteroidal) 30 March 2004 (tail) |
| Alternative designations | 2004 CB |
| Orbital characteristics A | |
| Epoch |
2014-May-23.0 (JD 2456800.5)[2] |
| Aphelion | 4.952 AU (Q) |
| Perihelion | 0.9694576 AU (q) |
| Semi-major axis | 2.9609356 AU (a) |
| Eccentricity | 0.6725840 |
| Orbital period | 5.09 yr |
| Inclination | 21.24340° |
| Last perihelion | 2009-Apr-15[3] |
| Next perihelion | 2014-May-06[3] |
209P/LINEAR is a periodic comet discovered on February 3, 2004 by Lincoln Near-Earth Asteroid Research (LINEAR) using a 1.0-metre (39 in) reflector.[1] It was given the permanent number 209P on December 12, 2008.[4]
Preliminary results by Esko Lyytinen and Peter Jenniskens predict 209P/LINEAR may cause the next big meteor shower which would come from the constellation Camelopardalis during May 2014.[5] There may be 100 to 400 meteors per hour.[5] All the trails from the comet from 1803 through 1924 may intersect Earths orbit during May 2014.[5]
209P/LINEAR next comes to perihelion (closest approach to the Sun) on May 6, 2014.[3] On May 29, 2014, the comet will pass 0.0554 AU (8,290,000 km; 5,150,000 mi) from the Earth,[6] but is only expected to brighten to about apparent magnitude 11.[7]
References
- ↑ 1.0 1.1 "IAUC 8314: P/2004 CB; 2004ba, 2004bb". IAU Central Bureau for Astronomical Telegrams. 2004-03-31. Retrieved 2012-10-03.
- ↑ "JPL Small-Body Database Browser: 209P/LINEAR". Jet Propulsion Laboratory. 2009-08-15 last obs (5.70 year arc). Retrieved 2012-10-03.
- ↑ 3.0 3.1 3.2 Syuichi Nakano (2011-10-31). "209P/LINEAR (NK 2142)". OAA Computing and Minor Planet Sections. Retrieved 2012-10-03.
- ↑ "IAUC 9005: COMET P/2008 X4 = P/2003 K2 (CHRISTENSEN); 208P; V5580 Sgr". IAU Central Bureau for Astronomical Telegrams. 2008-12-12. Retrieved 2012-10-03. (password required)
- ↑ 5.0 5.1 5.2 "The next big meteor shower". IMCCE. Retrieved 2012-10-03.
- ↑ "JPL Close-Approach Data: 209P/LINEAR". 2009-08-15 last obs (5.70 year arc). Retrieved 2012-10-03.
- ↑ Alan Hale. "455. COMET 209P/LINEAR P/2008 X2". Earthrise Institute (Southwest Institute for Space Research). Retrieved 2012-10-03.
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- 209P/LINEAR – Seiichi Yoshida @ aerith.net
- Elements and Ephemeris for 209P/LINEAR – Minor Planet Center
- 209P/LINEAR at the Minor Planet Center's Database
- 209P/LINEAR – Kazuo Kinoshita (Dec. 21, 2008 )
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| Periodic comets (by number) | ||
|---|---|---|
| Previous 208P/McMillan |
209P/LINEAR | Next 210P/Christensen |
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