(9788) Yagami
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Asteroid (9788) Yagami |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main outer belt asteroid |
| Asteroid family | Themis family |
| Major semi-axis | 3.0885 AU |
| eccentricity | 0.1383 |
| Perihelion - aphelion | 2.6613 AU - 3.5157 AU |
| Inclination of the orbit plane | 1.8997 ° |
| Length of the ascending node | 80.1175 ° |
| Argument of the periapsis | 123.3849 ° |
| Time of passage of the perihelion | 18th March 2017 |
| Sidereal period | 5.43 a |
| Physical Properties | |
| Medium diameter | 10.443 km (± 0.163) |
| Albedo | 0.093 (± 0.020) |
| Absolute brightness | 13.5 likes |
| history | |
| Explorer | Takao Kobayashi |
| Date of discovery | March 11, 1995 |
| Another name | 1995 EQ 1 , 1989 AV 3 , 1991 PS 19 |
| 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. | |
(9788) Yagami is an asteroid of the main outer belt , an asteroid field between Mars and Jupiter . The asteroid was discovered on March 11, 1995 by Japanese amateur astronomer Takao Kobayashi at the Oizumi Observatory ( IAU code 411). The Oizumi Observatory is located in Oizumi in Gunma Prefecture . The asteroid had been sighted before: on January 4, 1989 under the provisional designation 1989 AV 3 at the Australian Siding Spring Observatory and on August 6 and 14, 1991 (1991 PS 19 ) at the La Silla Observatory in Chile .
The mean diameter of the asteroid was calculated to be 10.443 km (± 0.163) and the albedo to be 0.093 (± 0.020).
The asteroid belongs to the Themis family, a group of asteroids named after (24) Themis . The ageless (not osculating ) orbital elements of (9788) Yagami are almost identical with those of the three smaller (when one of the absolute brightness of 15.6, 16.5 and 17.0 versus 13.5 emanates) asteroid: (113098) 2002 RV 74 , (396983) 2005 SK 13 and (463346) 2012 QT 10 .
(9788) Yagami was named on August 29, 2015 after the Japanese singer-songwriter Junko Yagami (* 1958). In the dedication, special reference is made to her song Polar Star and to her relief efforts after the Tōhoku earthquake in 2011 . The Yagami Fluctus, on the other hand, a solidified lava field in the southern hemisphere of Venus , was named after the Japanese earth goddess Yagami , wife of the god O-kuninusi .
Web links
- (9788) Yagami in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (9788) Yagami 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 (9788) Yagami according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ (9788) Yagami at the IAU Minor Planet Center (English)
- ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)
- ↑ The Yagami Fluctus in the Gazetteer of Planetary Nomenclature of the IAU (WGPSN) / USGS (English)