(19509) Niigata Main-belt Asteroid
Discovered on 29 June 1998 by LONEOS at Anderson Mesa.
Niigata prefecture is located on the island of Honshu, Japan. The Asteroids, Comets, Meteors 2012 meeting is to be held at Toki Messe in Niigata city, capital of the prefecture. Niigata is known for high quality rice and sake.Naming citation (20120506/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Niigata is today
Seen from above the solar system on 2026-10-14: Niigata is 2.60 au from the Sun and 2.88 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 19509 |
| Provisional designation | 1998 MG38 |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.52 km (#7,094 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0580 |
| Absolute magnitude (H) | 14.51 |
| Orbital period | 4.21 years |
| Semi-major axis | 2.61 au |
| Perihelion – aphelion | 2.05 – 3.16 au |
| Eccentricity | 0.213 |
| Inclination | 12.6° |
| Closest distance between its orbit and Earth's (MOID) | 1.05 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.