(1640) Nemo
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Asteroid (1640) Nemo |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Mars cruiser |
| Major semi-axis | 2.2887 AU |
| eccentricity | 0.3429 |
| Perihelion - aphelion | 1.5042 AU - 3.0733 AU |
| Inclination of the orbit plane | 7.1080 ° |
| Length of the ascending node | 355.4611 ° |
| Argument of the periapsis | 354.8840 ° |
| Time of passage of the perihelion | June 24, 2017 |
| Sidereal period | 3.46 a |
| Physical Properties | |
| Rotation period | 5.0 h |
| Absolute brightness | 13.3 mag |
| Spectral class | SMASSII : S. |
| history | |
| Explorer | Sylvain Julien Victor Arend |
| Date of discovery | August 31, 1951 |
| Another name | 1951 QA , A906 UA |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(1640) Nemo is an asteroid crossing Mars which was discovered on August 31, 1951 by the Belgian astronomer Sylvain Julien Victor Arend at the Royal Observatory of Belgium ( IAU code 012) in Uccle . The asteroid had already been sighted in October 1906 under the provisional designation A906 UA at the Heidelberg observatory on the Königstuhl .
The rotation period of (1640) Nemo was determined by Wiesław Z. Wiśniewski et al. determined to be 5.0 hours.
The asteroid was named on April 8, 1982 at the suggestion of Jean Meeus after the fictional character Captain Nemo by Jules Verne . Also named after Captain Nemo in 2018 was an impact crater on the Pluto moon Charon : Charon Crater Nemo .
See also
Web links
- (1640) Nemo in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (1640) Nemo in the Small-Body Database of the Jet Propulsion Laboratory of NASA at the California Institute of Technology (Caltech) in Pasadena , California (English)
- Discovery Circumstances of (1640) Nemo according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ (1640) Nemo at the IAU Minor Planet Center (English)
- ↑ Wisniewski, WZ; Michalowski, TM; Harris, AW; McMillan , RS (1997) Icarus 126, 395-449; 1995, Lunar & Planetary Sci. XXVI, 1511-1512.
- ^ Charon crater Nemo in the Gazetteer of Planetary Nomenclature of the IAU (WGPSN) / USGS