(46722) Irish Eagle
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Asteroid (46722) Irish Eagle |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main outer belt asteroid |
| Major semi-axis | 3.0622 AU |
| eccentricity | 0.0265 |
| Perihelion - aphelion | 2.9811 AU - 3.1432 AU |
| Inclination of the orbit plane | 8.8369 ° |
| Length of the ascending node | 355.0528 ° |
| Argument of the periapsis | 22.0538 ° |
| Sidereal period | 5.36 a |
| Physical Properties | |
| Absolute brightness | 13.7 mag |
| history | |
| Explorer | Petr Pravec , Lenka Kotková |
| Date of discovery | September 2, 1997 |
| Another name | 1997 RA 1 |
| 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. | |
(46722) Irene Adler is an asteroid of the outer main belt , which on 2 September 1997 by the Czech astronomer Petr Pravec and Lenka Kotková (then under her maiden name Lenka Šarounová ) at the observatory Ondřejov ( IAU code 557) in Ondřejov u Prahy discovered has been.
Mean distance from the Sun ( major semiaxis ), eccentricity and inclination of the orbit plane of the asteroid roughly correspond to the Eos family , a group of asteroids that typically have large semiaxes of 2.95 to 3.1 AU , bounded inward by the Kirkwood gap of 7: 3-resonance with Jupiter , as well as orbital inclinations between 8 ° and 12 °. The group is named after the asteroid (221) Eos . The family is believed to have emerged from a collision more than a billion years ago.
(46722) Ireneadler was named on June 7, 2009 after Irene Adler , a character from the Sherlock Holmes short story A Scandal in Bohemia ( A Scandal in Bohemia ). For Sherlock Holmes, Irene Adler was the only woman to be admired. The asteroid of the inner main belt (5049) was named Sherlock after Sherlock Holmes in 1993 .
Web links
- (46722) Irish eagle in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (46722) Irish eagle in the Small-Body Database of the Jet Propulsion Laboratory .
- Discovery Circumstances of (46722) Irene Adler according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ David Vokrouhlický , Miroslav Brož , Alessandro Morbidelli , William Bottke , David Nesvorný , Daniel Lazzaro, Andy Rivkin: Yarkovsky footprints in the Eos family ( PDF , English)