C/2014 N3 (NEOWISE)
| Discovery[1] | |
|---|---|
| Discovered by | NEOWISE James Bauer, et. al | 
| Discovery date | 4 July 2014 | 
| Orbital characteristics[2][3] | |
| Epoch | 5 August 2015 (JD 2457239.5) | 
| Observation arc | 2.51 years (917 days) | 
| Aphelion | ~60,000 AU (inbound) ~4,300 AU (outbound) | 
| Perihelion | 3.882 AU | 
| Semi-major axis | ~5,800 AU | 
| Eccentricity | 0.99933 | 
| Orbital period | ~5.1 million years (inbound) ~98,900 years (outbound) | 
| Inclination | 61.638° | 
| 19.927° | |
| Argument of periapsis | 353.57° | 
| Mean anomaly | 0.0003° | 
| Last perihelion | 13 March 2015 | 
| TJupiter | 1.161 | 
| Earth MOID | 2.888 AU | 
| Jupiter MOID | 1.065 AU | 
| Physical characteristics[4][5] | |
| Mean radius | ~15.0 ± 3.0 km (9.3 ± 1.9 mi) | 
| Comet total magnitude (M1) | 5.0 | 
| Comet nuclear magnitude (M2) | 10.6 | 
| 13.8 (2014 apparition) | |
Comet NEOWISE, formally designated as C/2014 N3, is a distant non-periodic comet that came to perihelion at a distance of 3.88 AU (580 million km) from the Sun on 13 March 2015. It is one of several comets discovered by the NEOWISE space telescope.
References
- ^ J. Bauer; T. Lister; H. Sato; E. Guido; N. Howes; et al. (July 2014). D. W. Green (ed.). "Comet C/2014 N3 (NEOWISE)". Central Bureau for Astronomical Telegrams. 3921. Bibcode:2014CBET.3921....1B.
- ^ "Barycentric Osculating Orbital Elements for Comet C/2014 N3 (NEOWISE) in epoch 1800 and 2200". JPL Horizons On-Line Ephemeris System. Jet Propulsion Laboratory. Retrieved 7 June 2025. (Solution using the Solar System's barycenter (Sun+Jupiter). Select Ephemeris Type:Elements and Center:@0)
- ^ "C/2014 N3 (NEOWISE) – JPL Small-Body Database Lookup". ssd.jpl.nasa.gov. Jet Propulsion Laboratory. Retrieved 7 June 2025.
- ^ "Observation list for C/2014 N3". COBS – Comet OBServation database. Retrieved 7 June 2025.
- ^ O. Ivanova; I. Luk’yanyk; F. Moreno; J. M. Bauer; V. Rosenbush (2025). "Photometry and spectroscopy of distant comet C/2014 N3 (NEOWISE)" (PDF). Astronomy & Astrophysics. 697: 188. doi:10.1051/0004-6361/202453286.
External links
- C/2014 N3 at the JPL Small-Body Database

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