(3638) Davis

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Asteroid
(3638) Davis
Properties of the orbit ( animation )
Epoch:  May 31, 2020 ( JD 2,459,000.5)
Orbit type Main belt asteroid
Asteroid family Eos family
Major semi-axis 3.0121  AU
eccentricity 0.0763
Perihelion - aphelion 2.7823 AU - 3.2418 AU
Inclination of the orbit plane 11.3100 °
Length of the ascending node 108.9295 °
Argument of the periapsis 167.1433 °
Sidereal period 5.23 a
Mean orbital velocity 17.15 km / s
Physical Properties
Medium diameter 17.804 ± 3.766 km
Albedo 0.158 ± 0.109
Rotation period 8.9 h
Absolute brightness 11.5 likes
history
Explorer Edward LG Bowell
Date of discovery November 20, 1984
Another name 1984 WX , 1981 FL 1 , 1984 YM 2 , 1986 CN
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.

(3638) Davis is an asteroid of the Main Belt . It was discovered on November 20, 1984 by the American astronomer Edward LG Bowell at the Anderson Mesa Station ( IAU code 688) of the Lowell Observatory in Coconino County .

The asteroid belongs to the Eos family, a group of asteroids which typically have large semiaxes from 2.95 to 3.1 AU, bounded inward by the Kirkwood gap of the 7: 3 resonance with Jupiter , and 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.

The celestial body was named after the American astronomer Donald R. Davis .

See also

Individual evidence

  1. ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)
  2. ↑ David Vokrouhlický , Miroslav Brož , Alessandro Morbidelli , William Bottke , David Nesvorný , Daniel Lazzaro, Andy Rivkin: Yarkovsky footprints in the Eos family ( PDF , English)

Web links