| Minorplanet: | yes |
| (394130) | |
| Background: |
|
| Discovered: | 26 April 2006 |
| Mpc Name: | (394130) |
| Epoch: | 4 September 2017 (JD 2458000.5) |
| Uncertainty: | 1 |
| Observation Arc: | 9.00 yr (3,286 days) |
| Perihelion: | 0.0791 AU |
| Semimajor: | 2.5951 AU |
| Eccentricity: | 0.9695 |
| Period: | 4.18 yr (1,527 days) |
| Mean Motion: | / day |
| Inclination: | 33.195° |
| Asc Node: | 40.788° |
| Arg Peri: | 341.88° |
| Moid: | 0.1064 AU (41.5 LD) |
| Jupiter Moid: | 0.8098 AU |
| Abs Magnitude: | 17.2 |
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.
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.
It is the asteroid with the third-smallest known perihelion of any known object orbiting the Sun. 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 0.1064AU, equivalent to 41.5 lunar distances.
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.
According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, measures 1.218 kilometers in diameter and its surface has an albedo of 0.157. The asteroid's composition and shape, as well as its rotation period remain unknown. It has an absolute magnitude of 17.2.
As of 2017, this minor planet remains unnamed.