92P/Sanguin
Periodic comet
From Wikipedia, the free encyclopedia
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.[3]
| Discovery[1] | |
|---|---|
| Discovered by | Juan G. Sanguin |
| Discovery site | Leoncito, Argentina |
| Discovery date | 15 October 1977 |
| Designations | |
| P/1977 T2 P/1989 J1[2] | |
| |
| Orbital characteristics[3][4] | |
| 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[3] | |
Mean diameter | 2.38 km (1.48 mi)[5] |
Mean density | 0.49±0.06 g/cm3[6] |
| 6.22±0.05 hours[7] | |
| 0.04 (assumed)[5] | |
| Comet total magnitude (M1) | 11.1 |
| Comet nuclear magnitude (M2) | 14.5 |
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.[7]
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.[5]
