(9769) Nautilus
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Asteroid (9769) Nautilus |
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| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt asteroid |
| Major semi-axis | 2.2379 AU |
| eccentricity | 0.1128 |
| Perihelion - aphelion | 1.9854 AU - 2.4904 AU |
| Inclination of the orbit plane | 6.4954 ° |
| Length of the ascending node | 129.4841 ° |
| Argument of the periapsis | 47.2386 ° |
| Time of passage of the perihelion | September 8, 2016 |
| Sidereal period | 3.35 a |
| Mean orbital velocity | 19.91 km / s |
| Physical Properties | |
| Medium diameter | 2.839 km (± 0.132) |
| Albedo | 0.458 (± 0.074) |
| Absolute brightness | 14.5 mag |
| history | |
| Explorer | Akira Natori , Takeshi Urata |
| Date of discovery | February 24, 1993 |
| Another name | 1993 DG 2 , 1994 PK 27 |
| 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. | |
(9769) Nautilus is a main inner belt asteroid discovered on February 24, 1993 by Japanese astronomers Akira Natori and Takeshi Urata at JCPM Yakiimo Station in Shimizu , Shizuoka Prefecture ( IAU code 885).
The mean diameter of the asteroid was calculated to be 2.839 km (± 0.132).
According to the SMASS classification ( Small Main-Belt Asteroid Spectroscopic Survey ), a spectroscopic study by Gianluca Masi , Sergio Foglia and Richard P. Binzel at (6769) Nautilus assumed a bright surface, so it could, roughly speaking, be around trade an S asteroid . In fact, the albedo of 0.458 (± 0.074) indicates a light surface.
The asteroid was named on September 28, 1999 after three submarines with the name " Nautilus ": a submarine designed by Robert Fulton from 1800 (see Nautilus (U-Boot, 1800) ), one by Jules Verne in the novel 20,000 Leagues Under the Sea The submarine was first mentioned in 1869 (see Nautilus (Jules Verne) ) and the USS Nautilus (SSN-571) , the first nuclear-powered submarine . Nautilus Rupes , a Rupes on Mercury , was named in 2013 after the research vessel EV Nautilus (built in 1967, renamed in 2009).
Web links
- (9769) Nautilus in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (9769) Nautilus 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 (9769) Nautilus according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ^ Gianluca Masi, Sergio Foglia, Richard P. Binzel: Search for Unusual Spectroscopic Candidates Among 40313 minor planets from the 3rd Release of the Sloan Digital Sky Survey Moving Object Catalog . (English)
- ↑ subdivision of asteroids to S-types, C-types and V-types (English)
- ↑ The asteroid (5231) Verne was named after Jules Verne in 1995 .
- ↑ Nautilus Rupes in the Gazetteer of Planetary Nomenclature of the IAU (WGPSN) / USGS (English)