(85627) 1998 HP151

(85627) 1998 HP151
Discovery
Discovered by Mauna Kea Observatory[1]
Discovery date April 28, 1998
Designations
Alternate name(s) none
Minor planet
category		 TNO (cubewano)[2][3]
Epoch December 31, 2006 (JD 2454100.5)
Aphelion 7223.602 Gm (48.287 AU)
Perihelion 6029.967 Gm (40.308 AU)
Semi-major axis 6626.785 Gm (44.297 AU)
Eccentricity 0.090
Orbital period 107687.324 d (294.83 a)
Average orbital speed 4.47 km/s
Mean anomaly 306.552°
Inclination 1.512°
Longitude of ascending node 55.956°
Argument of perihelion 247.575°
Physical characteristics
Dimensions 146 km[4]
Mass 3.0×1019? kg
Mean density 2.0? g/cm³
Equatorial surface gravity 0.0858? m/s²
Escape velocity 0.1623? km/s
Rotation period ? d
Albedo 0.10?
Temperature ~42 K
Spectral type ?
Absolute magnitude (H) 7.4

(85627) 1998 HP151, also written as (85627) 1998 HP151 is a cubewano. It has a perihelion (closest approach to the Sun) at 40.297 AU and an aphelion (farthest approach from the Sun) of 48.306 AU. It is about 146 km in diameter. It was discovered on April 28, 1998 at the Mauna Kea Observatory, Hawaii.

References

  1. ^ List Of Transneptunian Objects
  2. ^ "MPEC 2009-R09 :Distant Minor Planets (2009 SEPT. 16.0 TT)". IAU Minor Planet Center. 2009-09-04. http://www.cfa.harvard.edu/mpec/K09/K09R09.html. Retrieved 2009-10-04. 
  3. ^ Marc W. Buie (2007-05-13 using 37 observations). "Orbit Fit and Astrometric record for 85627". SwRI (Space Science Department). http://www.boulder.swri.edu/~buie/kbo/astrom/85627.html. Retrieved 2009-10-04. 
  4. ^ List of known trans-Neptunian objects
(85626) 1998 HM141•(85627) 1998 HP151• (85628) 1998 KV2
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