92P/Sanguin
| Discovery | |
|---|---|
| Discovered by | Juan G. Sanguin |
| Discovery date | 15 October 1977 |
| Designations | |
| P/1977 T2 P/1989 J1[1] | |
| |
| Orbital characteristics[2][3] | |
| Epoch | 27 February 2015 (JD 2457080.5) |
| Observation arc | 38.33 years |
| Earliest precovery date | 13 September 1977 |
| Number of observations | 1,001 |
| Aphelion | 8.897 AU |
| Perihelion | 1.826 AU |
| Semi-major axis | 5.361 AU |
| Eccentricity | 0.65949 |
| Orbital period | 12.413 years |
| Inclination | 19.444° |
| 181.46° | |
| Argument of periapsis | 163.80° |
| Mean anomaly | 359.82° |
| Last perihelion | 1 March 2015 |
| Next perihelion | 15 July 2027 |
| TJupiter | 2.410 |
| Earth MOID | 0.826 AU |
| Jupiter MOID | 0.807 AU |
| Physical characteristics[4][5] | |
Mean diameter | 2.38 km (1.48 mi) |
| 6.2 hours | |
| 0.04 (assumed) | |
| Comet total magnitude (M1) | 11.1 |
| Comet nuclear magnitude (M2) | 14.5 |
92P/Sanguin, also called Sanguin's Comet or Comet Sanguin, is a Jupiter-family comet discovered on 15 October 1977, by Juan G. Sanguin at Leoncito Astronomical Complex.[2]
Physical characteristics
Initial estimates suggest that the comet completes a single rotation approximately once every 6 days,[6] however this was revised to just only 6.2 hours.[5]
The nucleus of the comet has a radius of about 1.19 km (0.74 mi) based on observations by the Keck Observatory, assuming a geometric albedo of 0.04.[4]
References
- ^ "Comet Names and Designations". International Comet Quarterly. Retrieved 22 July 2025.
- ^ a b "92P/Sanguin – JPL Small-Body Database Lookup". ssd.jpl.nasa.gov. Jet Propulsion Laboratory. Retrieved 9 June 2024.
- ^ "92P/Sanguin Orbit". Minor Planet Center. Retrieved 24 February 2019.
- ^ a b K. J. Meech; O. R. Hainaut; B. G. Marsden (2004). "Comet nucleus size distributions from HST and Keck telescopes". Icarus. 170 (2): 463–491. Bibcode:2004Icar..170..463M. doi:10.1016/j.icarus.2004.03.014.
- ^ a b B. E. A. Mueller; N. H. Samarasinha (2018). "Further Investigation of Changes in Cometary Rotation". The Astronomical Journal. 156 (3): 107–114. arXiv:1806.11158. Bibcode:2018AJ....156..107M. doi:10.3847/1538-3881/aad0a1.
- ^ C. Snodgrass; A. Fitzsimmons; S. C. Lowry (2011). "The nuclei of comets 7P/Pons-Winnecke, 14P/Wolf and 92P/Sanguin" (PDF). Astronomy & Astrophysics. 444 (1): 287–295. arXiv:astro-ph/0509115. doi:10.1051/0004-6361:20053237. S2CID 119473563.
External links
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