| Discovery[1] | |
|---|---|
| Discovered by | V. Albitzkij |
| Discovery site | Simeiz Obs. |
| Discovery date | 19 July 1925 |
| Designations | |
| (1059) Mussorgskia | |
| Pronunciation | /mʊˈsɔːrkskiə/ |
Named after | Modest Mussorgsky[2] (Russian composer) |
| 1925 OA · A916 KA A917 UC · A920 HA | |
| main-belt[1][3] · (middle)[4] background[5] | |
| Orbital characteristics[3] | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 97.85yr (35,739 d) |
| Aphelion | 3.1377AU |
| Perihelion | 2.1435 AU |
| 2.6406 AU | |
| Eccentricity | 0.1882 |
| 4.29 yr (1,567 d) | |
| 216.68° | |
| 0° 13m 46.92s / day | |
| Inclination | 10.097° |
| 200.37° | |
| 88.072° | |
| Physical characteristics | |
| 17.54±3.33 km[6] 23.10±0.32 km[7] 25.227±0.139 km[8] 30.323±0.250 km[9] 36.78 km(calculated)[4] | |
| 5.519±0.002 h[10] 5.636 h[4] 5.6362±0.0006 h[11] | |
| 0.057(assumed)[4] 0.1010±0.0088[9] 0.174±0.026[8] 0.177±0.006[7] 0.23±0.21[6] | |
| X[12] · C(SDSS-MFB)[4][a] | |
| 10.70[7][9] · 10.84±0.24[12] 10.9[3][4] · 11.04[6] | |
1059 Mussorgskia, provisional designation1925 OA, is a backgroundasteroid from the central regions of theasteroid belt, approximately 25 kilometers (16 miles) in diameter. It was discovered on 19 July 1925, by Soviet astronomerVladimir Albitsky at theSimeiz Observatory on the Crimean peninsula.[1] The asteroid was named for Russian composerModest Mussorgsky.[2] TheX- orC-type asteroid has arotation period of 5.636 hours.[4][a]
Mussorgskia is a non-family asteroid from the main belt'sbackground population.[5] It orbits the Sun in thecentral asteroid belt at a distance of 2.1–3.1 AU once every 4 years and 3 months (1,567 days;semi-major axis of 2.64 AU). Its orbit has aneccentricity of 0.19 and aninclination of 10° with respect to theecliptic.[3]
The asteroid was first observed asA916 KA at Simeiz in May 1916. The body'sobservation arc begins as1920 HA atHeidelberg Observatory in April 1920, or more than 5 years prior to its official discovery observation at Simeiz.[1]
Mussorgskia has been characterized as a commonX-type asteroid by Pan-STARRS' photometric survey. It is also characterized as a carbonaceousC-type asteroid in theSDSS-MFB (Masi Foglia Binzel) taxonomy.[4][a]
In May 2002, two rotationallightcurves ofMussorgskia were obtained fromphotometric observations by Stephen Brincat at theFlarestar Observatory in Malta and by French amateur astronomerRené Roy. Lightcurve analysis gave arotation period of 5.519 and 5.6362 hours with a brightness amplitude of 0.20 and 0.21magnitude, respectively (U=2/3).[10][11] TheCollaborative Asteroid Lightcurve Link adopts a period of 5.636 hours and a brightness variation between 0.2 and 0.21 magnitude (U=3).[4]
According to the surveys carried out by the JapaneseAkari satellite and theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer,Mussorgskia measures between 17.54 and 30.323 kilometers in diameter and its surface has analbedo between 0.1010 and 0.23.[6][7][8][9]
CALL assumes a standard albedo for carbonaceous asteroids of 0.057 and consequently calculates a larger diameter of 36.78 kilometers based on anabsolute magnitude of 10.9.[4]
Thisminor planet was named after Russian composerModest Mussorgsky (1839–1881).[2] The officialnaming citation was published by theMinor Planet Center in November 1952 (M.P.C. 837).[13]
