4230 van den Bergh

Van den Bergh
Discovery
Discovered by Cornelis Johannes van Houten, Ingrid van Houten-Groeneveld and Tom Gehrels
Discovery site Palomar Observatory
Discovery date 19 September 1973
Designations
MPC designation 4230
Named after
Sidney Van den Bergh
1973 ST1
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 23476 days (64.27 yr)
Aphelion 4.4824724 AU (670.56833 Gm)
Perihelion 3.4250346 AU (512.37788 Gm)
3.953754 AU (591.4732 Gm)
Eccentricity 0.1337258
7.86 yr (2871.5 d)
323.53091°
 7m 31.328s / day
Inclination 3.099514°
160.53360°
22.90514°
Earth MOID 2.42774 AU (363.185 Gm)
Jupiter MOID 0.477233 AU (71.3930 Gm)
Jupiter Tisserand parameter 3.041
Physical characteristics
Mean radius
18.875 ± 1.45 km
88.0 h (3.67 d)
0.0259 ± 0.005
11.8

    4230 Van den Bergh (1973 ST1) is an outer main-belt asteroid discovered on September 19, 1973 by Cornelis Johannes van Houten, Ingrid van Houten-Groeneveld and Tom Gehrels at Palomar Observatory. It is named for Sidney Van den Bergh, Dutch Canadian astronomer and former director of the Dominion Astrophysical Observatory.[2]

    References

    1. "4230 van den Bergh (1973 ST1)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 14 April 2016.
    2. Canadian Asteroids, The Royal Astronomy Society of Canada, July 22, 2008, retrieved 2009-01-19

    External links


    This article is issued from Wikipedia - version of the Thursday, April 14, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.