(91133) 1998 HK151
From Infogalactic: the planetary knowledge core
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Discovery | |
---|---|
Discovered by | Mauna Kea Observatory |
Discovery date | April 28, 1998 |
Designations | |
plutino (TNO) | |
Orbital characteristics | |
Aphelion | 48.995 AU |
Perihelion | 30.388 AU |
39.691 AU | |
Eccentricity | 0.2343 |
249.95 years | |
11.9° | |
Inclination | 5.932° |
50.2° | |
181.3° | |
Physical characteristics | |
Dimensions | 85-190km H |
Spectral type
|
(Blueish;lowest TNO B-V) B-V=0.51; V-R=0.43[1] |
7.62 | |
(91133) 1998 HK151 (better known as 1998 HK151) is a plutino with a 2:3 resonance with Neptune. It was discovered on April 28, 1998, by the Mauna Kea Observatory.
1998 HK151 has the lowest, and thus bluest measured B-V color index of any TNO. On May 24, 2000, 1998 HK151 set a TNO record low B-V of 0.51. Reddening of the spectrum is caused by cosmic irradiaton by ultraviolet radiation and charged particles. Becoming bluer in the spectrum is caused by impact collisions exposing the interior of an object.
Based on an absolute magnitude (H) of 7.62, 1998 HK151 is estimated to be between 85 – 190 km in diameter.
References
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
- 2:3 Resonance
- KBO Surface Colors
- Orbital simulation from JPL (Java) / Ephemeris
- Hanging with Pluto
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