(7443) Tsumura Main-belt Asteroid
Discovered on 26 January 1996 by T. Kobayashi at Oizumi.
Mitsunori Tsumura (b. 1955) is a science educator at the Wakayama Science Museum, as well as an amateur astronomer who mainly observes comets. He made 7117 observations of comets between 1973 and Sept. 2002.Naming citation (20030501/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Tsumura is today
Seen from above the solar system on 2026-10-14: Tsumura is 2.84 au from the Sun and 3.84 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 7443 |
| Provisional designation | 1996 BR2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.92 km (#7,747 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.255 |
| Absolute magnitude (H) | 13.19 |
| Orbital period | 4.99 years |
| Semi-major axis | 2.92 au |
| Perihelion – aphelion | 2.82 – 3.02 au |
| Eccentricity | 0.0335 |
| Inclination | 1.36° |
| Closest distance between its orbit and Earth's (MOID) | 1.83 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.