162173 Ryugu
A spinning-top rubble pile whose samples came back to Earth with Hayabusa2 in 2020.
Where it is right now
162173 Ryugu is in Virgo, 1.54 AU away, magnitude 22.6.
Computed for 2 August 2026, 17:00 UTC, and recomputed at least hourly. This page is cached, so treat the line above as accurate to the hour rather than to the second. The map shows the live position.
Position from a Kepler propagation of the published elements below, accurate to about an arcminute.
Facts
Every line carries the source it came from.
- Diameter
- 0.9 kmSource: NASA/JPL Small-Body Database
- Orbital period
- 1.3 yearsSource: NASA/JPL Small-Body Database
- Distance from the Sun
- 1.191 AU on averageSource: NASA/JPL Small-Body Database
- Orbit shape
- eccentricity 0.191, inclined 5.9 degrees to the eclipticSource: NASA/JPL Small-Body Database
- Class
- Near-earth asteroid (apollo group)Source: NASA/JPL Small-Body Database
- Discovered
- 1999-May-10 by LINEARSource: NASA/JPL Small-Body Database
Physical size
- Mean radius
- 448 m
- Diameter
- 0.9 km across
- Absolute magnitude H
- 19.55
Orbit
Elements are heliocentric, referred to the J2000.0 ecliptic.
- Average distance from the Sun
- 1.191 AU (178.2 million km)
- Closest and furthest
- 0.963 AU (144.1 million km) to 1.418 AU (212.2 million km)
- Eccentricity
- 0.1911, noticeably elliptical
- Inclination to the ecliptic
- 5.87 degrees
- Orbital period
- 474.7 days
- Longitude of ascending node
- 251.29 degrees
- Argument of periapsis
- 211.61 degrees
- Mean anomaly at J2000.0
- 299.91 degrees
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Catalog id ryugu. 3,172 objects on the map, of which 171 are hand-authored with sourced facts.