(7917) Hammergren
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Asteroid (7917) Hammergren |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.4138 AU |
| eccentricity | 0.1280 |
| Perihelion - aphelion | 2.1049 AU - 2.7227 AU |
| Inclination of the orbit plane | 8.6801 ° |
| Length of the ascending node | 320.9217 ° |
| Argument of the periapsis | 12.8322 ° |
| Sidereal period | 3.75 a |
| Physical Properties | |
| Absolute brightness | 14.3 mag |
| history | |
| Explorer | Scolded John Bus |
| Date of discovery | March 2, 1981 |
| Another name | 1981 EG 5 , 1986 RT 3 , 1986 RZ 13 , 1992 DG 8 |
| 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. | |
(7917) Hammergren is an asteroid of the main belt , which on 2 March 1981 by the American astronomer scolding John bus during the UK Schmidt-Caltech Asteroid Survey at the Siding Spring Observatory ( IAU code 413) near Coonabarabran in Australia was discovered.
It was named on May 6, 2012 after the American astronomer Mark Hammergren (* 1964), who works at the Adler Planetarium in Chicago and leads the astro-science workshop there.
See also
Web links
- Asteroid Hammergren: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- Asteroid Hammergren in the Small-Body Database of NASA's Jet Propulsion Laboratory at the California Institute of Technology, Pasadena, USA
- (7917) Hammergren in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).