(52747) 1998 HM151
| Discovery | |
|---|---|
| Discovered by | Mauna Kea Observatory |
| Discovery date | April 29, 1998 |
| Designations | |
| Alternative names | none |
| Minor planet category | TNO (cubewano)[1][2] |
| Orbital characteristics | |
| Aphelion | 47.500 AU |
| Perihelion | 41.902 AU |
| Semi-major axis | 44.701 AU |
| Eccentricity | 0.063 |
| Orbital period | 109164 d (298.87 a)[3] |
| Average orbital speed | ?km/s |
| Mean anomaly | 308.6° |
| Inclination | 0.5° |
| Longitude of ascending node | 64.0° |
| Argument of perihelion | 243.3° |
| Physical characteristics | |
| Dimensions | 116 km[4] |
| Mass | ?kg |
| Mean density | ?g/cc |
| Equatorial surface gravity | ?m/s² |
| Escape velocity | ?km/s |
| Rotation period | ?d |
| Albedo | ? |
| Temperature | ?K |
| Spectral type | ? |
| Absolute magnitude (H) | 7.9 |
(52747) 1998 HM151, also written as (52747) 1998 HM151, is a cubewano. It has a perihelion (closest approach to the Sun) at 41.902 AU and an aphelion (farthest approach from the Sun) at 47.500 AU. It is 116 km in diameter. It was discovered on April 29, 1998 at the Mauna Kea Observatory, Hawaii.
References
- ^ "MPEC 2009-R09 :Distant Minor Planets (2009 SEPT. 16.0 TT)". IAU Minor Planet Center. 2009-09-04. Retrieved 2009-10-04.
- ^ Marc W. Buie (2004-05-27 using 22 observations). "Orbit Fit and Astrometric record for 52747". SwRI (Space Science Department). Retrieved 2009-10-04.
- ^ AstDyS: (52747) 1998HM151
- ^ List of known trans-Neptunian objects
1. http://cfa-www.harvard.edu/iau/lists/TNOs.html
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