(25276) Dimai

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Asteroid
(25276) Dimai
Properties of the orbit ( animation )
Epoch:  June 27, 2015 ( JD 2,457,200.5)
Orbit type Main belt
Asteroid family Eos family
Major semi-axis 2.9724  AU
eccentricity 0.0525
Perihelion - aphelion 2.8164 AU - 3.1284 AU
Inclination of the orbit plane 8.5558 °
Length of the ascending node 230.8768 °
Argument of the periapsis 206.7996 °
Sidereal period 5.12 a
Mean orbital velocity 17.27 km / s
Physical Properties
Absolute brightness 14.2 mag
history
Explorer V. Goretti
Date of discovery November 15, 1998
Another name 1998 VJ 33 , 2000 EL 96
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.

(25276) Dimai is an asteroid of the main belt that was discovered on November 15, 1998 by the Italian amateur astronomer Vittorio Goretti at his private observatory Pianoro ( IAU code 610) in Pianoro near Bologna .

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.

(25276) Dimai was named on April 27, 2002 after the Italian amateur astronomer Alessandro Dimai (1962-2019), who spent more than twenty years at the Helmut Ullrich Observatory ( IAU code 154) in Cortina d'Ampezzo, who discovered Dedicated to supernovae .

See also

Individual evidence

  1. ↑ The family membership of (25276) Dimai in the AstDyS-2 database (English)
  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