astro.wikisort.org - Asteroid

(394130) 2006 HY₅₁ is a near-Earth object of the Apollo asteroid group with a high orbital eccentricity, approximately 1.2 kilometers in diameter. It was discovered on 26 April 2006, by LINEAR at Lincoln Lab's ETS in Socorro, New Mexico, United States.[2]

(394130) 2006 HY₅₁

Discovery[1]
Discovered by	LINEAR
Discovery site	Lincoln Lab's ETS
Discovery date	26 April 2006
Designations
MPC designation	(394130) 2006 HY51
Alternative designations	2006 HY51
Minor planet category	Apollo NEO[1][2] Mercury crosser Venus crosser Earth crosser Mars crosser Jupiter crosser
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 1
Observation arc	9.00 yr (3,286 days)
Aphelion	5.1111 AU
Perihelion	0.0791 AU
Semi-major axis	2.5951 AU
Eccentricity	0.9695
Orbital period (sidereal)	4.18 yr (1,527 days)
Mean anomaly	238.94°
Mean motion	0° 14m 8.88s / day
Inclination	33.195°
Longitude of ascending node	40.788°
Argument of perihelion	341.88°
Earth MOID	0.1064 AU (41.5 LD)
Jupiter MOID	0.8098 AU
Physical characteristics
Dimensions	1.218±0.228 km[3]
Geometric albedo	0.157±0.071[3]
Absolute magnitude (H)	17.2[1]

Orbit and classification

2006 HY₅₁ orbits the Sun at a distance of 0.1–5.1 AU once every 4 years and 2 months (1,527 days). Its orbit has an eccentricity of 0.97 and an inclination of 33° with respect to the ecliptic.[1]

It is the asteroid with the third-smallest known perihelion of any known object orbiting the Sun.^{[citation needed]} Its extreme orbital eccentricity brings it within 0.081 AU of the Sun (26% of Mercury's perihelion) and as far as 5.118 AU from the Sun (making it a Jupiter-grazer). It has a minimum orbit intersection distance with Earth of 0.1064 AU (15,900,000 km), equivalent to 41.5 lunar distances.[1]

The small bodies with even more eccentric orbits are likely to suffer a rotational breakup by the age comparable to that of the Solar System, although 2006 HY51 itself is not expected to break.[4]

Physical characteristics

According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, 2006 HY₅₁ measures 1.218 kilometers in diameter and its surface has an albedo of 0.157.[3] The asteroid's composition and shape, as well as its rotation period remain unknown. It has an absolute magnitude of 17.2.[1]

Naming

As of 2017, this minor planet remains unnamed.[2]

References

External links

• Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
• Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
• (394130) 2006 HY51 at NeoDyS-2, Near Earth Objects—Dynamic Site
  • Ephemeris · Obs prediction · Orbital info · MOID · Proper elements · Obs info · Close · Physical info · NEOCC
• (394130) 2006 HY51 at ESA–space situational awareness
  • Ephemerides · Observations · Orbit · Physical Properties · Summary
• (394130) 2006 HY51 at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

На других языках

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- [en] (394130) 2006 HY51

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[ru] (394130) 2006 HY51

(394130) 2006 HY51 — околоземный астероид с высоким эксцентриситетом орбиты, принадлежит группе аполлонов. Диаметр равен 1,2 км. Был открыт 26 апреля 2006 года в рамках обзора LINEAR в Сокорро, Нью-Мексико, США[2].

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