| Discovery[1] | |
|---|---|
| Discovered by | S. Arend |
| Discovery site | Uccle Obs. |
| Discovery date | 23 March 1933 |
| Designations | |
| (1262) Sniadeckia | |
Named after | Jan Śniadecki[2] (Polish astronomer) |
| 1933 FE · 1949 JJ 2016 FS5 · A907 GU | |
| main-belt · (outer)[3] background[4] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 110.47 yr (40,350 days) |
| Aphelion | 3.0167AU |
| Perihelion | 2.9870 AU |
| 3.0019 AU | |
| Eccentricity | 0.0049 |
| 5.20yr (1,900 days) | |
| 346.50° | |
| 0° 11m 22.2s / day | |
| Inclination | 13.131° |
| 124.29° | |
| 146.87° | |
| Physical characteristics | |
| Dimensions | 51.34±15.63 km[5] 51.49±6.2 km[6] 51.55 km(derived)[3] 53.54±11.23 km[7] 58.196±1.233 km[8] 59.092±19.02 km[9] 59.49±0.82 km[10] 71.011±0.457 km[11] |
| 17.57h[12] 21.2±0.1 h[13] | |
| 0.028±0.004[11] 0.03±0.01[7] 0.0323±0.0251[9] 0.040±0.001[10] 0.04±0.03[5] 0.0442±0.0046[8] 0.0529±0.016[6] 0.0563(derived)[3] | |
| SMASS =C[1][3] B–V = 0.740[1] U–B = 0.380[1] | |
| 10.18[3][8][12] · 10.25[1][5][6][7][9][10][11] · 10.30±0.30[14] | |
1262 Sniadeckia, provisional designation1933 FE, is a carbonaceous backgroundasteroid from theasteroid belt's outer regions, approximately 54 kilometers in diameter. It was discovered on 23 March 1933, by Belgian astronomerSylvain Arend at theRoyal Observatory of Belgium in Uccle.[15] The asteroid was named for Polish astronomerJan Śniadecki.[2] It has a notably loweccentricity of only 0.005.[1]
Sniadeckia is a non-family asteroid from the main belt'sbackground population.[4] It orbits the Sun in theouter asteroid belt at a distance of 2.99–3.00 AU once every 5 years and 2 months (1,900 days;semi-major axis of 3.00 AU). Its orbit has aneccentricity of only 0.005 and aninclination of 13° with respect to theecliptic.[1]
The asteroid was first identified asA907 GU atHeidelberg Observatory in April 1907. The body'sobservation arc begins with its official discovery observation at Uccle in 1933.[15]
In theSMASS classification,Sniadeckia is a carbonaceousC-type asteroid.[1][3]
In January 1984, the first and best-rated rotationallightcurve ofSniadeckia was obtained from photometric observations by astronomerRichard Binzel. Lightcurve analysis gave arotation period of 17.57 hours with a brightness variation of 0.16magnitude (U=3).[12] French amateur astronomerLaurent Bernasconi measured an alternative period of 21.2 with an amplitude of 0.10 magnitude in April 2006 (U=2).[13]
According to the surveys carried out by the Infrared Astronomical SatelliteIRAS, the JapaneseAkari satellite and theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer,Sniadeckia measures between 51.34 and 71.011 kilometers in diameter and its surface has analbedo between 0.028 and 0.0529.[5][6][7][8][9][10][11]
TheCollaborative Asteroid Lightcurve Link derives an albedo of 0.0563 and a diameter of 51.55 kilometers based on anabsolute magnitude of 10.18.[3]
Thisminor planet was named byTadeusz Banachiewicz afterJan Śniadecki (1756–1830), a Polish professor of mathematics and astronomy, who founded the Kraków Observatory (055). The lunar craterSniadecki is also named in his honor. The official naming citation was mentioned inThe Names of the Minor Planets byPaul Herget in 1955 (H 116).[2]
