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<br>(cold)<ref name="Brown2013">
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|publisher=SwRI (Space Science Department)
|publisher=SwRI (Space Science Department)
|url=http://www.boulder.swri.edu/~buie/kbo/astrom/85627.html
|url=http://www.boulder.swri.edu/~buie/kbo/astrom/85627.html
|accessdate=2009-10-04}}</ref><br>(cold)<ref name="Brown2013"> Mike Brown's "How many dwarf planets are there in the outer solar system?" {{webarchive |url=https://web.archive.org/web/20131015110203/http://www.gps.caltech.edu/~mbrown/dps.html}}</ref>
|accessdate=2009-10-04}}</ref>
| epoch=13 January 2016 ([[Julian day|JD]] 2457400.5)
| epoch=13 January 2016 ([[Julian day|JD]] 2457400.5)
| semimajor={{Convert|44.08836|AU|Tm|abbr=on}}
| semimajor={{Convert|44.08836|AU|Tm|abbr=on}}
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| mass=3.0{{e|19}}? kg
| mass=3.0{{e|19}}? kg
| density=2.0? g/cm³
| density=2.0? g/cm³
| surface_grav=0.0858? m/s²
| surface_grav=0.09? m/s²
| escape_velocity=0.1623? km/s
| escape_velocity=0.2? km/s
| rotation=? d
| rotation=
| spectral_type=?
| spectral_type=
| abs_magnitude=7.4
| abs_magnitude=7.4
| albedo=0.10?
| albedo=0.1?
| single_temperature=~42 [[kelvin|K]]
| single_temperature=~42 [[kelvin|K]]
| mean_motion={{Deg2DMS|0.00336681|sup=ms}} / day
| mean_motion={{Deg2DMS|0.00336681|sup=ms}} / day
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{{DEFAULTSORT:085627}}
{{DEFAULTSORT:085627}}
[[Category:Classical Kuiper belt objects]]
[[Category:Cold Classical Kuiper belt objects]]
[[Category:Numbered minor planets|085627]]
[[Category:Numbered minor planets|085627]]
[[Category:Discoveries by the Mauna Kea Observatories]]
[[Category:Discoveries by the Mauna Kea Observatories]]

Revision as of 21:19, 18 February 2018

(85627) 1998 HP151
Discovery
Discovered byMauna Kea Observatory[1]
Discovery date28 April 1998
Designations
none
TNO (cubewano)[2][3]
(cold)[4]
Orbital characteristics[5]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 3
Observation arc3302 days (9.04 yr)
Aphelion47.92187 AU (7.169010 Tm)
Perihelion40.25486 AU (6.022041 Tm)
44.08836 AU (6.595525 Tm)
Eccentricity0.086951
292.75 yr (106926 d)
4.47 km/s
315.815°
0° 0m 12.121s / day
Inclination1.51240°
55.9363°
249.275°
Earth MOID39.2382 AU (5.86995 Tm)
Jupiter MOID35.1334 AU (5.25588 Tm)
TJupiter5.916
Physical characteristics
Dimensions146 km[6]
Mass3.0×1019? kg
Mean density
2.0? g/cm³
Equatorial surface gravity
0.09? m/s²
Equatorial escape velocity
0.2? km/s
0.1?
Temperature~42 K
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 Archived 2007-06-21 at WebCite
  2. ^ "MPEC 2009-R09 :Distant Minor Planets (2009 SEPT. 16.0 TT)". IAU Minor Planet Center. 2009-09-04. Retrieved 2009-10-04.
  3. ^ Marc W. Buie. "Orbit Fit and Astrometric record for 85627". SwRI (Space Science Department). Retrieved 2009-10-04. 2007-05-13 using 37 observations
  4. ^ Mike Brown's "How many dwarf planets are there in the outer solar system?" Archived 2013-10-15 at the Wayback Machine
  5. ^ "85627 (1998 HP151)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 8 April 2016.
  6. ^ List of known trans-Neptunian objects


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