(6100) Kunitomoikkansai Main-belt Asteroid
Discovered on 9 November 1991 by A. Sugie at Dynic.
Named in memory of Ikkansai Kunitomo (1778-1840). Born into a family of famous gun makers in the Edo period in Japan, he made several Gregorian reflecting telescopes entirely of his own design and observed the sun, moon and planets. For 14 months during 1835-1836 he made a continuous series of observations of sunspots. Name proposed by the discoverer, endorsed by S. Murayama, K. Sato and A. Fujii.Naming citation (19981208/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Kunitomoikkansai is today
Seen from above the solar system on 2026-10-14: Kunitomoikkansai is 2.06 au from the Sun and 1.50 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 6100 |
| Provisional designation | 1991 VK4 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.06 km (#12,601 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.468 |
| Rotation period | 30.3 hours |
| Absolute magnitude (H) | 13.62 |
| Orbital period | 3.56 years |
| Semi-major axis | 2.33 au |
| Perihelion – aphelion | 2.02 – 2.64 au |
| Eccentricity | 0.134 |
| Inclination | 3.40° |
| Closest distance between its orbit and Earth's (MOID) | 1.02 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 9 November 1991
More named asteroids discovered by A. Sugie
- (3997) Taga
- (4289) Biwako
- (4352) Kyoto
- (4461) Sayama
- (4873) Fukaya
- (4952) Kibeshigemaro
- (5008) Miyazawakenji
- (5330) Senrikyu
- (5332) Davidaguilar
- (5435) Kameoka
- (5440) Terao
- (5448) Siebold
← (6099) Saarland · (6101) Tomoki →