Taxus Baccata

(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]

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

^ ^a ^b ^c ^d ^e ^f ^g "JPL Small-Body Database Browser: 394130 (2006 HY51)" (2015-04-25 last obs.). Jet Propulsion Laboratory. Retrieved 2 June 2017.
^ ^a ^b ^c "394130 (2006 HY51)". Minor Planet Center. Retrieved 18 August 2016.
^ ^a ^b ^c Mainzer, A.; Grav, T.; Bauer, J.; Masiero, J.; McMillan, R. S.; Cutri, R. M.; et al. (December 2011). "NEOWISE Observations of Near-Earth Objects: Preliminary Results". The Astrophysical Journal. 743 (2): 17. arXiv:1109.6400. Bibcode:2011ApJ...743..156M. doi:10.1088/0004-637X/743/2/156. S2CID 239991. Retrieved 14 December 2016.
^ Makarov, V. V.; Goldin, A.; Veras, D. (2020), "Gigayear-timescale Destruction of High-eccentricity Asteroids by Spin and Why 2006 HY51 Has Been Spared", The Astrophysical Journal, 899 (2): 103, arXiv:2007.11487, Bibcode:2020ApJ...899..103M, doi:10.3847/1538-4357/aba89e

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
- Ephemerides · Observation prediction · Orbital info · MOID · Proper elements · Observational info · Close approaches · Physical info · Orbit animation
(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

[jpldata-1] ^ ^a ^b ^c ^d ^e ^f ^g "JPL Small-Body Database Browser: 394130 (2006 HY51)" (2015-04-25 last obs.). Jet Propulsion Laboratory. Retrieved 2 June 2017.

[MPC-394130-2] "394130 (2006 HY51)". Minor Planet Center. Retrieved 18 August 2016.

[Mainzer-2011-3] Mainzer, A.; Grav, T.; Bauer, J.; Masiero, J.; McMillan, R. S.; Cutri, R. M.; et al. (December 2011). "NEOWISE Observations of Near-Earth Objects: Preliminary Results". The Astrophysical Journal. 743 (2): 17. arXiv:1109.6400. Bibcode:2011ApJ...743..156M. doi:10.1088/0004-637X/743/2/156. S2CID 239991. Retrieved 14 December 2016.

[4] Makarov, V. V.; Goldin, A.; Veras, D. (2020), "Gigayear-timescale Destruction of High-eccentricity Asteroids by Spin and Why 2006 HY51 Has Been Spared", The Astrophysical Journal, 899 (2): 103, arXiv:2007.11487, Bibcode:2020ApJ...899..103M, doi:10.3847/1538-4357/aba89e

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