(91133) 1998 HK151

The correct title of this article is (91133) 1998 HK₁₅₁. It features superscript or subscript characters that are substituted or omitted because of technical limitations.

**(91133) 1998 HK₁₅₁**
Discovery ^A

Discoverer	Mauna Kea Observatory
Discovery date	April 28, 1998
Alternate designations ^B
Category	plutino (TNO)
Orbital elements ^C
Epoch
Eccentricity (e)	0.2343
Semi-major axis (a)	39.691 AU
Perihelion (q)	30.388 AU
Aphelion (Q)	48.995 AU
Orbital period (P)	249.95 years
Mean orbital speed
Inclination (i)	5.932°
Longitude of the ascending node (Ω)	50.2°
Argument of perihelion (ω)	181.3°
Mean anomaly (M)	11.9°
Physical characteristics ^D
Dimensions	85-190km ^H
Mass
Density
Surface gravity
Escape velocity
Rotation period
Spectral class	(Blueish;lowest TNO B-V) B-V=0.51; V-R=0.43
Absolute magnitude	7.62
Albedo (geometric)
Mean surface temperature
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(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 24th, 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 - 190km in diameter.

External links

2:3 Resonance

TNO Colors

KBO Surface Colors

Orbital simulation from JPL (Java) / Ephemeris

Hanging with Pluto

v • d • e Minor planets navigator

(91132) 1998 HL150 · (91133) 1998 HK₁₅₁ · (91134) 1998 HC154

v • d • e Small Solar System bodies

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Lists: Minor planets · Asteroid groups and families · Binary asteroids · Asteroid moons See also: Near-Earth object · Dwarf planet · Planet · Solar System · Pronunciation of asteroid names · Meanings of asteroid names.

v • d • e Trans-Neptunian objects

Pronunciation guide Objects in italics are unnnumbered.

Plutinos	Pluto¹ · 1993 SB · 1993 SC · 1994 JR₁ · 1994 TB · 1995 QZ₉ · 1996 SZ₄ · 1996 TP₆₆ · 1996 TQ₆₆ · 1997 QJ₄ · 1998 HK₁₅₁ · 1998 US₄₃ · 1998 VG₄₄ · 1998 WW₂₄ · 1998 WU₃₁ · 38083 Rhadamanthus · 1999 TC₃₆ · 38628 Huya · 28978 Ixion · 2002 KX₁₄ · 2002 VR₁₂₈ · 2003 VS₂ · 90482 Orcus · 1993 RO · 1993 RP · 2003 AZ₈₄ · 2001 QF₂₉₈

Cubewanos	1992 QB₁ · 1994 GV₉ · 1994 JQ₁ · 1994 VK₈ · 1995 GJ · 1995 SM₅₅ · 1996 TO₆₆ · 58534 Logos · 1997 CS₂₉ · 1997 CU₂₉ · 1998 HJ₁₅₁ · 1998 HP₁₅₁ · 1998 HM₁₅₁ · 1998 KR₆₅ · 19521 Chaos · 1998 WA₂₅ · 1999 DF₉ · 1999 HT₁₁ · 53311 Deucalion · 20000 Varuna · 2002 AW₁₉₇ · 50000 Quaoar · 2002 TX₃₀₀ · 2002 UX₂₅ · 2003 EL₆₁ · 2003 OP₃₂ · 2004 GV₉ · 2005 FY₉ · 2005 RN₄₃ · 88611 Teharonhiawako · 1998 WW₃₁ · 2002 MS₄ · 2003 MW₁₂ · 2003 QW₉₀

Twotinos	1996 TR₆₆ · 1998 SM₁₆₅ · 1999 RB₂₁₆ · 2000 JG₈₁ · 2002 WC₁₉ · 1997 SZ₁₀

Other resonant objects	1994 JS · 1995 DA₂ · 1998 WA₃₁ · 1999 CP₁₃₃ · 1999 DE₉ · 1999 HB₁₂ · 2001 KC₇₇ · 2001 KP₇₇ · 2002 TC₃₀₂ · 2003 LG₇

Scattered disc objects	Eris^{1, 2} · 1995 TL₈ · 1996 GQ₂₁ · 1996 TL₆₆ · 1999 CC₁₅₈ · 2000 EE₁₇₃ · 2000 OO₆₇ · 2000 OM₆₇ · 2001 UR₁₆₃ · 2002 CY₂₂₄ · 2002 GX₃₂ · 2002 RP₁₂₀ · 90377 Sedna² · 2005 RM₄₃ · 2000 CR₁₀₅ 2004 XR₁₉₀ · 2005 TN₇₄ · 2006 QH₁₈₁

Unclassified	1997 CR₂₉ · 1998 SN₁₆₅ · 1999 CL₁₅₈ · 1999 HC₁₂ · 1999 KR₁₆ · 1999 OY₃ · 2003 FY₁₂₈ · 2004 SB₆₀ · 2004 TY₃₆₄ · 2005 RR₄₃

Natural satellites	Charon (Pluto) · Hydra (Pluto) · Nix (Pluto) · Dysnomia (Eris) · S/2000 (1998 WW₃₁) 1 · S/2005 (2003 EL₆₁) 1 · S/2005 (2003 EL₆₁) 2 · Zoe (Logos) · S/2005 (79360) 1 · Sawiskera (Teharonhiawako)

¹ Also classified as a dwarf planet. ² Although currently classified as an SDO, Eris and Sedna may be part of the inner Oort Cloud.

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