(7803) Adachi Main-belt Asteroid
Discovered on 4 March 1997 by T. Kobayashi at Oizumi.
Makoto Adachi (b. 1953), an elementary school teacher in Kyoto, has continued regular visual observations of Jupiter and other planets since 1969. He is also director of the Oriental Astronomical Association in charge of the association's activities.Naming citation (20030806/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Adachi is today
Seen from above the solar system on 2026-10-14: Adachi is 2.91 au from the Sun and 2.90 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 7803 |
| Provisional designation | 1997 EW2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.36 km (#8,427 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.251 |
| Rotation period | 5.20 hours |
| Absolute magnitude (H) | 13.41 |
| Orbital period | 4.65 years |
| Semi-major axis | 2.79 au |
| Perihelion – aphelion | 2.66 – 2.91 au |
| Eccentricity | 0.0457 |
| Inclination | 5.00° |
| Closest distance between its orbit and Earth's (MOID) | 1.68 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Makoto
- (8574) Makotoirie
- (8932) Nagatomo
- (9673) Kunishimakoto
- (9851) Sakamoto
- (10546) Nakanomakoto
- (11087) Yamasakimakoto
- (11978) Makotomasako
- (55222) Makotoshinkai
All asteroids named after someone called Makoto
Also discovered on 4 March 1997
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- (9800) Shigetoshi
- (12477) Haiku
- (15887) Daveclark
- (17694) Jiranek
- (18561) Fengningding
- (20205) Sitanchen
- (21351) Bhagwat
- (24922) Bechtel
- (26934) Jordancotler
- (33011) Kurtiscarsch