(19955) Hollý

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Asteroid
(19955) Hollý
Properties of the orbit ( animation )
Epoch:  July 31, 2016 ( JD 2,457,600.5)
Orbit type Main outer belt asteroid
Asteroid family Eos family
Major semi-axis 3.0675  AU
eccentricity 0.1454
Perihelion - aphelion 2.6215 AU - 3.5136 AU
Inclination of the orbit plane 12.1210 °
Length of the ascending node 127.7453 °
Argument of the periapsis 222.0841 °
Time of passage of the perihelion December 30, 2015
Sidereal period 5.37 a
Mean orbital velocity 17.01 km / s
Physical Properties
Medium diameter 7.785 (± 0.116) km
Albedo 0.140 (± 0.021)
Absolute brightness 13.3 mag
history
Explorer Milan Antal
Date of discovery November 28, 1984
Another name 1984 WZ 1 , 1978 TL 8 , 1998 KS 68
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.

(19955) Hollý is an asteroid of the outer main belt that was discovered on November 28, 1984 by the Slovak astronomer Milan Antal at the Piszkéstető Observatory ( IAU code 561) in the northern Hungarian Mátra Mountains on behalf of the Budapest Konkoly Observatory . The asteroid had already been sighted on October 8, 1978 under the provisional designation 1978 TL 8 at the Crimean Observatory in Nautschnyj .

Roughly speaking, 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 , 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. The timeless (not osculating ) orbital elements of (19955) Hollý are almost identical to those of ten other asteroids: (91994) 1999 VF 124 , (106487) 2000 WH 24 , (129593) 1997 IP 24 , (241085) 2006 UR 195 , (328015) 2007 HO 96 , (329728) 2003 WQ 170 , (340715) 2006 SE 58 , (396994) 2005 ST 212 , (399673) 2004 SW 19 and 2011 UW 117 .

According to the SMASS classification ( Small Main-Belt Asteroid Spectroscopic Survey ), Hollý was assigned to the taxonomic class of the C asteroids in a spectroscopic study by Gianluca Masi , Sergio Foglia and Richard P. Binzel (19955) .

(19955) Hollý was named on August 4, 2001 after the Slovak poet Ján Hollý (1785–1849).

Web links

Individual evidence

  1. (19955) Hollý at the IAU Minor Planet Center (English)
  2. David Vokrouhlický , Miroslav Brož , Alessandro Morbidelli , William Bottke , David Nesvorný , Daniel Lazzaro, Andy Rivkin: Yarkovsky footprints in the Eos family . (English, PDF ; 26 MB)
  3. The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)
  4. ^ Gianluca Masi, Sergio Foglia, Richard P. Binzel: Search for Unusual Spectroscopic Candidates Among 40313 minor planets from the 3rd Release of the Sloan Digital Sky Survey Moving Object Catalog . (English)
  5. subdivision of asteroids to S-types, C-types and V-types (English)