(5155) Denisyuk Main-belt Asteroid
Discovered on 18 April 1972 by T. M. Smirnova at Nauchnyj.
Named in honor of academician Yurij Nikolaevich Denisyuk (b. 1927), head of a laboratory at the Ioffe Physical and Technical Institute in St. Petersburg and a member of the Royal Photographic Society, known worldwide for his discoveries in holography. Name suggested by the Institute of Applied Astronomy.Naming citation (19981005/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Denisyuk is today
Seen from above the solar system on 2026-10-14: Denisyuk is 3.22 au from the Sun and 4.20 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5155 |
| Provisional designation | 1972 HR |
| Orbit class | Main-belt Asteroid |
| Diameter | 15.3 km (#3,057 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.121 |
| Rotation period | 31.6 hours |
| Absolute magnitude (H) | 12.49 |
| Orbital period | 5.50 years |
| Semi-major axis | 3.12 au |
| Perihelion – aphelion | 2.67 – 3.56 au |
| Eccentricity | 0.143 |
| Inclination | 6.11° |
| Closest distance between its orbit and Earth's (MOID) | 1.66 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 18 April 1972
More named asteroids discovered by T. M. Smirnova
- (1774) Kulikov
- (1791) Patsayev
- (1793) Zoya
- (1804) Chebotarev
- (1835) Gajdariya
- (1854) Skvortsov
- (1857) Parchomenko
- (1900) Katyusha
- (1902) Shaposhnikov
- (1903) Adzhimushkaj
- (1904) Massevitch
- (1905) Ambartsumian
← (5154) Leonov · (5156) Golant →