(26355) Grueber Main-belt Asteroid
Discovered on 23 December 1998 by E. Meyer at Linz.
Johannes Grueber (1623-1680) was a Jesuit priest, missionary, mathematician and astronomer at the Chinese imperial court from 1659 to 1661. He returned to Europe from China by the overland route and published the very first travelogue describing Tibet.Naming citation (20040107/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Grueber is today
Seen from above the solar system on 2026-10-14: Grueber is 2.19 au from the Sun and 1.98 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 26355 |
| Provisional designation | 1998 YL8 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.57 km (#9,619 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.519 |
| Rotation period | 4.54 hours |
| Absolute magnitude (H) | 12.86 |
| Orbital period | 3.99 years |
| Semi-major axis | 2.52 au |
| Perihelion – aphelion | 1.88 – 3.16 au |
| Eccentricity | 0.255 |
| Inclination | 12.2° |
| Closest distance between its orbit and Earth's (MOID) | 0.921 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Johannes
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- (7343) Ockeghem
- (10506) Rydberg
- (11245) Hansderijk
- (11681) Ortner
- (12134) Hansfriedeman
- (12617) Angelusilesius
- (13332) Benkhoff
- (14541) Sacrobosco
- (15955) Johannesgmunden
- (18032) Geiss
- (32606) Markkanen
All asteroids named after someone called Johannes