(787) Moscow ( lat.Moskva ) - an asteroid from the group of the main belt , which is part of the Maria family . It was discovered on April 20, 1914 by the Soviet (at that time Russian) astronomer Grigory Neuimin at the Simeiz Observatory and named after the city of Moscow [1] .
| (787) Moscow | |
|---|---|
| Asteroid | |
| Opening | |
| Discoverer | Neuimin G.N. |
| Place of discovery | Crimea (Simeiz) |
| Discovery date | April 20, 1914 |
| Eponym | Moscow |
| Alternative notation | 1914 UQ |
| Category | Main ring ( Mary family ) |
| Orbital characteristics | |
| Age of November 4, 2013 JD 2456600.5 | |
| Eccentricity ( e ) | 0.1287251 |
| Semimajor axis ( a ) | 380.103 million km (2,5408344 AU ) |
| Perihelion ( q ) | 331.175 million km (2,2137652 AU) |
| Aphelion ( Q ) | 429.032 million km (2,8679036 AU) |
| Circulation Period ( P ) | 1,479.323 days (4.05 g ) |
| Average orbital speed | 18,608 km / s |
| Inclination ( i ) | 14.83382 ° |
| Longitude node (Ω) | 183.99546 ° |
| Perihelion Argument (ω) | 125.63854 ° |
| Median Anomaly ( M ) | 135.44373 ° |
| physical characteristics | |
| Diameter | 27.51 km |
| Rotation period | 6,056 h |
| Apparent magnitude | 15.13 m (current) |
| Absolute magnitude | 9.9 m |
| Albedo | 0.2559 |
| Current distance from the sun | 2,479 a. e. |
| Current distance from earth | 2,787 a. e. |
In 1934, the English astronomer Cyril Jackson discovered an asteroid that received a temporary designation 1934 FD, which was subsequently assigned the serial number 1317. However, in 1938, Grigory Neuymin, during a check of the orbital parameters of this body, established that they correspond to the asteroid (787) Moscow, discovered 20 years earlier. Therefore, the freed number 1317 was assigned to another asteroid with the provisional designation 1935 RC, which later received the name Silfretta [2] .
Photometric observations made in 1999 at the Palmer Divide Observatory, Colorado Springs , allowed us to obtain the light curves of this body, from which it followed that the period of rotation of the asteroid around its axis is 6.056 ± 0.001 hours, with a change in brightness as it rotates 0.62 ± 0.01 m [3] .
See also
- List of asteroids (701-800)
- Classifications of Minor Planets
Notes
- ↑ Schmadel, Lutz D. Dictionary of Minor Planet Names . - Fifth Revised and Enlarged Edition. - B. , Heidelberg, N. Y .: Springer, 2003 .-- P. 74. - ISBN 3-540-00238-3 .
- ↑ NASA JPL Database of Small Bodies in the Solar System (1317 )
- ↑ Warner, Brian D. Analysis of 13 asteroid lightcurves obtained at the Palmer Divide Observatory (Eng.) // The Minor Planet Bulletin : journal. - Association of Lunar and Planetary Observers 2006. June ( vol. 33 , no. 2 ). - P. 39-41 . - ISSN 1052-8091 . - .