Summary
C/2014 Q3 (Borisov) is a periodic comet discovered at apparent magnitude 17 on 22 August 2014 by amateur astronomer Gennadiy Borisov using a 0.3-meter (12 in) astrograph.[1] It is the third comet discovered by Borisov. The comet is best viewed from the northern hemisphere.
 NEOWISE image of the comet on 27 November 2014 | |
| Discovery | |
|---|---|
| Discovered by | Gennadiy Borisov 0.3 m f/1.5 astrograph (L51)[1] |
| Discovery date | 22 August 2014 |
| Orbital characteristics | |
| Epoch | 9 December 2014[2] |
| Aphelion | 55.111 au |
| Perihelion | 1.6474 au (q)[2] |
| Eccentricity | 0.94196[2] |
| Orbital period | 146 years (epoch 2050)[3] |
| Inclination | 89.949°[2] |
| Last perihelion | 19 November 2014[2] |
| Next perihelion | ~2160 |
The comet was expected to reach about magnitude ~11 near perihelion (closest approach to the Sun), but brightened to around magnitude 10.[4] By 8 November 2014, the comet had a declination of +83 and was circumpolar from the northern hemisphere.[5] The comet came to perihelion on 19 November 2014 at a distance of 1.65 au from the Sun.[2]
Before entering the planetary region (epoch 1950), C/2014 Q3 had an orbital period of 148 years.[3] After leaving the planetary region (epoch 2050), it has an orbital period of 146 years.[3]
See also edit
References edit
- ^ a b "MPEC 2014-Q38 : COMET C/2014 Q3 (BORISOV)". IAU Minor Planet Center. 19 August 2014. Retrieved 3 November 2014. (CK14Q030)
- ^ a b c d e f "MPEC 2014-U124 : Observations and Orbits of Comets". IAU Minor Planet Center. 29 October 2014. Retrieved 3 November 2014.
- ^ a b c Horizons output. "Heliocentric Osculating Orbital Elements for Comet C/2014 Q3 (Borisov)". Retrieved 3 November 2014. (Solution using heliocentric values)
- ^ Seiichi Yoshida (2 November 2014). "C/2014 Q3 ( Borisov )". Seiichi Yoshida's Comet Catalog. Retrieved 3 November 2013.
- ^ "Elements and Ephemeris for C/2014 Q3 (Borisov)". Minor Planet Center. Archived from the original on 3 November 2014. Retrieved 3 November 2014. (CK14Q030)