164P/Christensen
| Discovery | |
|---|---|
| Discovered by | Eric J. Christensen |
| Discovery date | December 21, 2004 |
| Designations | |
| P/2004 Y1 | |
| Orbital characteristics | |
| Epoch | March 6, 2006 |
| Aphelion | 5.619 AU |
| Perihelion | 1.651 AU |
| Semi-major axis | 3.635 AU |
| Eccentricity | 0.5458 |
| Orbital period | 6.931 a |
| Inclination | 16.2453° |
| Last perihelion | 27 May 2025 31 May 2018 2 June 2011 |
| Next perihelion | April or May 2032 |
164P/Christensen is a periodic comet in the Solar System. 164P/Christensen has an orbital period of around 7 years, and is expected to come to perihelion in April or May of 2032.
Observational history
The comet was discovered by Eric J. Christensen in late 2004 from images in the Catalina Sky Survey. It was the second comet he discovered after 210P/Christensen. At the time of discovery the comet had an apparent magnitude of 16.5 in the Leo (constellation).
References
1. “IAUC 8458: Comet P/2004 Y1 (Christensen); c/2004 V14, V15, W1-W6.” Harvard.Edu, 2026, http://www.cbat.eps.harvard.edu/iauc/08400/08458.html. Accessed 8 Aug. 2026. 2. “164P/Christensen.” Aerith.Net, 2024, http://www.aerith.net/comet/catalog/0164P/index.html. Accessed 8 Aug. 2026.
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- 164P/Christensen – Seiichi Yoshida @ aerith.net
- Elements and Ephemeris for 164P/Christensen – Minor Planet Center
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