177P/Barnard
| Discovery | |
|---|---|
Semi-major axis | 24.58 AU |
| Eccentricity | 0.954 |
| Orbital period | 122 yr 120y 7m 16d (perihelion to perihelion) |
| Inclination | 31.05° |
| Last perihelion | August 28, 2006[3][4][1] June 21, 1889[1] |
| Next perihelion | April 13, 2127[5][1][6][3] |
billion km
).
The comet, also designated P/2006 M3, was discovered by
Perihelion was August 28, 2006. It was last observed in December 2006 when it was about 2 AU (300 million km) from the Sun.[4]
The only
109P/Swift-Tuttle
(133 years).
Of Barnard's other two periodic comets, the first,
206P/Barnard-Boattini marked the beginning of a new era in cometary astronomy, as it was the first to be discovered by photography. It was a lost comet after 1892, until accidentally rediscovered on October 7, 2008, by Andrea Boattini
.
References
- ^ a b c d "177P/Barnard Orbit". Minor Planet Center. Retrieved 2014-06-20.
- ^ "Horizons Batch for 177P/Barnard aphelion on 2066-Nov-03". JPL Horizons. Retrieved 2023-07-02.
- ^ a b c Seiichi Yoshida (calculated by Kazuo Kinoshita). "177P/Barnard 2". Archived from the original on 27 April 2011. Retrieved 2011-03-15.
- ^ a b c d "JPL Small-Body Database Browser: 177P/Barnard". Jet Propulsion Laboratory. Retrieved 2012-07-26.
2006-12-11 last obs
- Syuichi Nakano (2006-10-01). "177P/Barnard 2 (NK 1369)". OAA Computing and Minor Planet Sections. Retrieved 2012-02-20.
- ^ "Horizons Batch for 177P/Barnard on 2127-Apr-13" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Retrieved 2023-04-29. (JPL#29/Soln.date: 2021-Apr-15)
- ^ Naoyuki Kurita. "Comet Barnard 2 on Aug 4, 2006". Stellar Scenes. Archived from the original on 2007-09-30. Retrieved 2006-09-01.
- ^ "177P/Barnard". Kazuo Kinoshita. 2006-11-18. Retrieved 2007-01-06.
External links
- Orbital simulation from JPL (Java) / Ephemeris
- 177P/Barnard – Kazuo Kinoshita (2011 Jan. 17)
- 177P at Gary W. Kronk's Cometography
.png)
