Astronomy:556 Phyllis
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.png) A three-dimensional model of 556 Phyllis based on its light curve | |
| Discovery | |
|---|---|
| Discovered by | Paul Götz |
| Discovery site | Heidelberg |
| Discovery date | 8 January 1905 |
| Designations | |
| (556) Phyllis | |
| Pronunciation | /ˈfɪlɪs/ |
| 1905 PW | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 108.29 yr (39553 d) |
| |{{{apsis}}}|helion}} | 2.7179 astronomical unit|AU (406.59 Gm) |
| |{{{apsis}}}|helion}} | 2.2115 AU (330.84 Gm) |
| 2.4647 AU (368.71 Gm) | |
| Eccentricity | 0.10273 |
| Orbital period | 3.87 yr (1413.4 d) |
| Mean anomaly | 301.06° |
| Mean motion | 0° 15m 16.956s / day |
| Inclination | 5.2400° |
| Longitude of ascending node | 286.126° |
| 177.439° | |
| Physical characteristics | |
| Mean radius | 18.905±0.55 km |
| Rotation period | 4.293 h (0.1789 d) |
| Geometric albedo | 0.1853±0.011 |
| Absolute magnitude (H) | 9.56 |
Phyllis (minor planet designation: 556 Phyllis) is a minor planet orbiting the Sun. It is an S-type asteroid with a diameter of 38 km and a geometric albedo of 0.185. Based on photometric observations between 1998 and 2006, it has a synodic rotation period of 4.293 ± 0.001 hours.[2] The asteroid is named after Phyllis, a character in Greek mythology.
References
- ↑ "556 Phyllis (1905 PW)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=556;cad=1.
- ↑ Marciniak, A. et al. (October 2007), "Photometry and models of selected main belt asteroids. IV. 184 Dejopeja, 276 Adelheid, 556 Phyllis", Astronomy and Astrophysics 473 (2): 633–639, doi:10.1051/0004-6361:20077694, Bibcode: 2007A&A...473..633M, https://www.aanda.org/10.1051/0004-6361/200912741/pdf.
External links
- 556 Phyllis at AstDyS-2, Asteroids—Dynamic Site
- 556 Phyllis at the JPL Small-Body Database
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