Astronomy:496 Gryphia
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Short description: Main-belt asteroid
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery site | Heidelberg |
| Discovery date | 25 October 1902 |
| Designations | |
| (496) Gryphia | |
| Pronunciation | /ˈɡrɪfiə/[1] |
| 1902 KH; 1931 TB; 1931 TN2; 1933 FQ; 1936 CB; 1951 WS2 | |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 112.79 yr (41198 d) |
| |{{{apsis}}}|helion}} | 2.3726 astronomical unit|AU (354.94 Gm) |
| |{{{apsis}}}|helion}} | 2.0255 AU (303.01 Gm) |
| 2.1990 AU (328.97 Gm) | |
| Eccentricity | 0.078917 |
| Orbital period | 3.26 yr (1191.1 d) |
| Mean anomaly | 267.309° |
| Mean motion | 0° 18m 8.064s / day |
| Inclination | 3.7916° |
| Longitude of ascending node | 207.608° |
| 258.567° | |
| Physical characteristics | |
| Mean radius | 7.735±0.55 km |
| Rotation period | 18.0 h (0.75 d) |
| Geometric albedo | 0.1676±0.027 |
| Absolute magnitude (H) | 11.61 |
Gryphia (minor planet designation: 496 Gryphia) is an S-type asteroid[3] belonging to the Flora family in the Main Belt. Its diameter is about 15 km and it has an albedo of 0.168.[4]
This object has a very low rate of spin, requiring 44.67 days (1,072 h) to complete a full rotation.[5]
References
- ↑ "Gryphius". Merriam-Webster Dictionary. https://www.merriam-webster.com/dictionary/Gryphius.
- ↑ "496 Gryphia (1902 KH)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=496;cad=1.
- ↑ http://www.psi.edu/pds/resource/taxonomy.html
- ↑ "Archived copy". http://www.psi.edu/pds/resource/imps.html.
- ↑ Pilcher, Frederick et al. (July 2017). "299 Thora and 496 Gryphia: Two More Very Slowly Rotating Asteroids". Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers 44 (3): 270–274. Bibcode: 2017MPBu...44..270P.
External links
- 496 Gryphia at AstDyS-2, Asteroids—Dynamic Site
- 496 Gryphia at the JPL Small-Body Database
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