1809 Prometheus
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| Discovery[1] | |
|---|---|
| Discovered by | C. J. van Houten I. van Houten-G. T. Gehrels (Palomar–Leiden survey) |
| Discovery site | Palomar Obs. |
| Discovery date | 24 September 1960 |
| Designations | |
| Pronunciation | /prəˈmiːθiːəs/[2] |
Named after | Προμηθεύς Promētheys (Greek mythology)[3] |
| 2522 P-L · Template:Mp 1955 SW · 1955 VA 1965 UR | |
| main-belt · (outer) | |
| Adjectives | Promethean, -ian /prəˈmiːθiːən/[4] |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 61.53 yr (22,473 days) |
| Aphelion | 3.2256 AU |
| Perihelion | 2.6245 AU |
| 2.9251 AU | |
| Eccentricity | 0.1027 |
| 5.00 yr (1,827 days) | |
| 163.57° | |
| Template:Deg2DMS / day | |
| Inclination | 3.2585° |
| 99.484° | |
| 231.33° | |
| Physical characteristics | |
| Dimensions | 14.212±0.097 km[5] |
| 0.126±0.010[5] | |
| 11.7[1] | |
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1809 Prometheus /prəˈmiːθiːəs/ is an asteroid from the outer region of the asteroid belt, approximately 14 kilometers in diameter. Discovered during the Palomar–Leiden survey in 1960, it was given the provisional designation Template:Mp and named after Prometheus from Greek mythology.[3]
Orbit and classification
Prometheus orbits the Sun in the outer main-belt at a distance of 2.6–3.2 AU once every 5.00 years (1,827 days). Its orbit has an eccentricity of 0.10 and an inclination of 3° with respect to the ecliptic.[1]
Discovery
It was discovered on 24 September 1960, by the Dutch astronomer couple Ingrid and Cornelis Johannes van Houten at Leiden, on photographic plates taken by Dutch–American astronomer Tom Gehrels at Palomar, California, in the United States.[6] On the same night, the team of astronomers discovered several other minor planets including 1810 Epimetheus.
Prometheus was first identified as Template:Mp at the Hungarian Konkoly Observatory in 1943. In 1955, its first used observation was taken at Goethe Link Observatory, when it was identified as Template:Mp, extending the body's observation arc by 5 years prior to its official discovery observation.[6]
The survey designation "P-L" stands for Palomar–Leiden, named after Palomar Observatory and Leiden Observatory, which collaborated on the fruitful Palomar–Leiden survey in the 1960s. Gehrels used Palomar's Samuel Oschin telescope (also known as the 48-inch Schmidt Telescope), and shipped the photographic plates to Ingrid and Cornelis van Houten at Leiden, where astrometry was carried out. The trio are credited with the discovery of several thousand minor planets.[7]
Naming
This minor planet was named for Prometheus, a Titan from Greek mythology, who stole the fire from the gods. The name has also been given to a moon of Saturn, Prometheus (moon), discovered by the Voyager 1 spacecraft in 1980.[3] The asteroid 1810 Epimetheus is named after his brother. The official Template:MoMP was published by the Minor Planet Center on 20 February 1976 (M.P.C. 3934).[8]
Physical characteristics
According to the surveys carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Prometheus measures 14.2 kilometers in diameter, and its surface has an albedo of 0.126.[5] As of 2017, its spectral type, rotation period and shape remain unknown.
References
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- ^ a b c d Page Module:Citation/CS1/styles.css has no content."JPL Small-Body Database Browser: 1809 Prometheus (2522 P-L)" (2017-03-29 last obs.). Jet Propulsion Laboratory. Archived from the original on 20 December 2016. Retrieved 3 June 2017.
- ^ Page Module:Citation/CS1/styles.css has no content."Prometheus". Lexico UK English Dictionary. Oxford University Press. Archived from the original on 20 March 2020.
- ^ a b c Page Module:Citation/CS1/styles.css has no content.Schmadel, Lutz D. (2007). "(1809) Prometheus". Dictionary of Minor Planet Names – (1809) Prometheus. Springer Berlin Heidelberg. p. 145. doi:10.1007/978-3-540-29925-7_1810. ISBN 978-3-540-00238-3.
- ^ Page Module:Citation/CS1/styles.css has no content."Promethean". Lexico UK English Dictionary UK English Dictionary. Oxford University Press. Archived from the original on 20 March 2020.
- ^ a b c Page Module:Citation/CS1/styles.css has no content.Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv:1406.6645. Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121. Retrieved 15 December 2016.
- ^ a b Page Module:Citation/CS1/styles.css has no content."1809 Prometheus (2522 P-L)". Minor Planet Center. Retrieved 15 December 2016.
- ^ Page Module:Citation/CS1/styles.css has no content."Minor Planet Discoverers". Minor Planet Center. 24 April 2016. Retrieved 15 December 2016.
- ^ Page Module:Citation/CS1/styles.css has no content.Schmadel, Lutz D. "Appendix – Publication Dates of the MPCs". Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008). Springer Berlin Heidelberg. p. 221. doi:10.1007/978-3-642-01965-4. ISBN 978-3-642-01964-7.
External links
- Asteroid Lightcurve Database (LCDB), query form (info Script error: No such module "webarchive".)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- Template:AstDys
- 1809 Prometheus at the JPL Small-Body DatabaseTemplate:Edit at Wikidata
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