_Stavropolis.png) Shape model ofStavropolis from itslightcurve | |
| Discovery[1] | |
|---|---|
| Discovered by | G. Neujmin |
| Discovery site | Simeiz Obs. |
| Discovery date | 11 June 1929 |
| Designations | |
| (1147) Stavropolis | |
Named after | Stavropol(Russian city)[2] |
| 1929 LF · 1946 KA | |
| Orbital characteristics[3] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 87.80 yr (32,068 days) |
| Aphelion | 2.7977AU |
| Perihelion | 1.7439 AU |
| 2.2708 AU | |
| Eccentricity | 0.2320 |
| 3.42yr (1,250 days) | |
| 271.25° | |
| 0° 17m 16.8s / day | |
| Inclination | 3.8806° |
| 265.22° | |
| 15.742° | |
| Physical characteristics | |
| 10.94±0.29 km[6] 13.430±0.197 km[7] 13.898±0.157 km[8] 13.92±0.84 km[9] 14.89 km(calculated)[10] | |
| 5.66070±0.00003 h[11] | |
| 0.145±0.019[9] 0.1460±0.0215[8] 0.155±0.036[7] 0.20(assumed)[10] 0.406±0.058[6] | |
| 11.40[6] · 11.5[1][3][10] · 12.00[9][8] | |
1147 Stavropolis (prov. designation:1929 LF) is a stonybackground asteroid from the inner regions of theasteroid belt. It was discovered on 11 June 1929, by Georgian–Russian astronomerGrigory Neujmin at theSimeiz Observatory on the Crimean peninsula.[1] TheS-type asteroid has arotation period of 5.7 hours and measures approximately 14 kilometers (9 miles) in diameter. It was named after the Russian city ofStavropol.[2]
Stavropolis is a non-family asteroid of the main belt'sbackground population when applying thehierarchical clustering method to itsproper orbital elements.[4][5] It orbits the Sun in theinner asteroid belt at a distance of 1.7–2.8 AU once every 3 years and 5 months (1,250 days). Its orbit has aneccentricity of 0.23 and aninclination of 4° with respect to theecliptic.[3] The body'sobservation arc begins at with its official discovery observation at Simeiz.[1]
Thisminor planet was named by the discover after the Russian city ofStavropol, located innorthern Caucasus region. From 1936 to 1946, the city was named "Woroschilowsk". Thenaming was mentioned inThe Names of the Minor Planets byPaul Herget in 1955 (H 107).[2]
In the Bus–BinzelSMASS classification,Stavropolis is a common stonyS-type asteroid,[3] while in theBus–DeMeo classification, it is an Sw-subtype.[5]
In September 2001, a rotationallightcurve ofStavropolis was obtained fromphotometric observations by AmericansLarry Robinson andBrian Warner at the Sunflower (739) and Palmer Divide Observatory (716) in Kansas and Colorado, respectively. Lightcurve analysis gave arotation period of5.66±0.01 hours with a brightness variation of 0.42magnitude (U=3).[12]
In October 2015, another lightcurve was obtained by French amateur astronomerPierre Antonini. It gave a well-defined period of5.66070±0.00003 hours with an amplitude of 0.32 magnitude (U=3).[11] A 2016-published lightcurve, using modeled photometric data from the Lowell Photometric Database (LPD), gave a concurring period of5.66079±0.00001 hours, as well as twospin axes of (78.0°, −50.0°) and (267.0°, −51.0°) inecliptic coordinates (λ, β).[13]
According to the survey carried out by theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer,Stavropolis measures between 10.94 and 13.898 kilometers in diameter and its surface has analbedo between 0.146 and 0.406,[6][7][8] while the JapaneseAkari satellite found a diameter of 13.92 kilometers with an albedo of 0.145.[9] TheCollaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 14.89 kilometers based on anabsolute magnitude of 11.5.[10]
