Astronomy:437 Rhodia
| Discovery | |
|---|---|
| Discovered by | Auguste Charlois |
| Discovery date | 16 July 1898 |
| Designations | |
| (437) Rhodia | |
| Pronunciation | /roʊˈdaɪə/[1] |
| Named after | Ῥόδεια Rhodeia |
| 1898 DP | |
| Minor planet category | Main belt |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 117.73 yr (43,001 d) |
| |{{{apsis}}}|helion}} | 2.9793 astronomical unit|AU (445.70 Gm) |
| |{{{apsis}}}|helion}} | 1.79242 AU (268.142 Gm) |
| 2.38586 AU (356.920 Gm) | |
| Eccentricity | 0.24873 |
| Orbital period | 3.69 yr (1,346.1 d) |
| Mean anomaly | 355.267° |
| Mean motion | 0° 16m 2.82s / day |
| Inclination | 7.3442° |
| Longitude of ascending node | 263.22° |
| 62.058° | |
| Physical characteristics | |
| Dimensions | 13.12±0.7 km[2] |
| Rotation period | 56 h (2.3 d) |
| Geometric albedo | 0.7035±0.084[2][3] |
| Absolute magnitude (H) | 10.41[2] |
Rhodia (minor planet designation: 437 Rhodia) is a Main belt asteroid that was discovered by French astronomer Auguste Charlois on 16 July 1898 in Nice. It was named after one of the Oceanid nymphs of Greek mythology.[4] This asteroid is orbiting the Sun at a distance of 2.39 astronomical unit|AU with a period of 3.69 years and an eccentricity (ovalness) of 0.25. The orbital plane is tilted at an angle of 7.3° to the plane of the ecliptic.[2] 437 Rhodia was originally a proposed fly-by target of interest for the Rosetta mission.[5]
Analysis of the bimodal light curve generated using photometric data show a lengthy rotation period of 433.2 ± 0.5 hours (18.05 ± 0.02 days) with a brightness variation of 0.35±0.05 in magnitude. It also appears to be tumbling.[6] 437 Rhodia is classified as an E-type asteroid with a diameter of approximately 13 km. This object has the highest albedo in the IRAS dataset, with a value of 0.70±0.08.[7]
References
- ↑ Noah Webster (1884) A Practical Dictionary of the English Language
- ↑ 2.0 2.1 2.2 2.3 2.4 "JPL Small-Body Database Browser: 437 Rhodia (1898 DP)". https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=437.
- ↑ Johnston, Wm. Robert (28 June 2003). "Asteroid albedos: graphs of data". Johnston's Archive. http://www.johnstonsarchive.net/astro/astalbedo.html.
- ↑ Schmadel, Lutz D. (2012), Dictionary of Minor Planet Names, Springer Berlin Heidelberg, p. 48, ISBN 9783642297182, https://books.google.com/books?id=aeAg1X7afOoC&pg=PA48.
- ↑ Barucci, M. A. et al. (January 2005), "Asteroid target selection for the new Rosetta mission baseline. 21 Lutetia and 2867 Steins", Astronomy and Astrophysics 430: 313–317, doi:10.1051/0004-6361:20041505, Bibcode: 2005A&A...430..313B, https://hal.sorbonne-universite.fr/hal-00616385/file/Asteroid_target_selection_for_the_new_Rosetta_mission_baseline.pdf.
- ↑ Pilcher, Frederick; Polakis, Tom (July 2018), "A Photometric Study of 437 Rhodia", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers 45 (3): 287–289, Bibcode: 2018MPBu...45..287P.
- ↑ Fornasier, S. et al. (July 2008), "Visible and near infrared spectroscopic investigation of E-type asteroids, including 2867 Steins, a target of the Rosetta mission", Icarus 196 (1): 119–134, doi:10.1016/j.icarus.2008.02.015, Bibcode: 2008Icar..196..119F, https://hal.archives-ouvertes.fr/hal-00567271/file/PEER_stage2_10.1016%252Fj.icarus.2008.02.015.pdf.
External links
- 437 Rhodia at AstDyS-2, Asteroids—Dynamic Site
- 437 Rhodia at the JPL Small-Body Database
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