(5075) Goryachev Main-belt Asteroid
Discovered on 13 October 1969 by B. A. Burnasheva at Nauchnyj.
Named in memory of Nikolaj Nikanorovich Goryachev (1883-1940), professor of astronomy at Tomsk University, who in 1920 founded and until 1940 headed the department of astronomy. He is the author of numerous papers on celestial mechanics, comets, meteors and astrometry. In particular, he was known for his work on Halphen's method for computing secular perturbations and his application of this to (1) Ceres. For more than 20 years Goryachev delivered lectures on astronomy and geodesy at Tomsk University and Tomsk Polytechnic Institute.Naming citation (19961026/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Goryachev is today
Seen from above the solar system on 2026-10-14: Goryachev is 2.06 au from the Sun and 2.45 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5075 |
| Provisional designation | 1969 TN4 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.84 km (#10,937 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.300 |
| Rotation period | 373 hours |
| Absolute magnitude (H) | 13.78 |
| Orbital period | 3.75 years |
| Semi-major axis | 2.41 au |
| Perihelion – aphelion | 2.00 – 2.83 au |
| Eccentricity | 0.172 |
| Inclination | 1.32° |
| Closest distance between its orbit and Earth's (MOID) | 1.01 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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