1274 Delportia
| Discovery | |
|---|---|
| Discovered by | E. Delporte |
| Discovery site | Uccle Obs. |
| Discovery date | 28 November 1932 |
| Designations | |
| MPC designation | 1274 Delportia |
|
Named after
|
Eugène Delporte (astronomer) |
| 1932 WC · 1926 AA 1928 RX · 1934 JD A918 RA |
|
| main-belt · Flora | |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 90.23 yr (32,956 days) |
| Aphelion | 2.4821 AU |
| Perihelion | 1.9772 AU |
| 2.2296 AU | |
| Eccentricity | 0.1132 |
| 3.33 yr (1,216 days) | |
| 333.88° | |
| 0° 17m 45.6s / day | |
| Inclination | 4.3976° |
| 327.11° | |
| 244.73° | |
| Physical characteristics | |
| Dimensions |
9.611±0.121 km 10.384±0.048 km 12.85 km (calculated) 12.95±0.22 km |
|
5.5±0.07 h 5.615±0.001 h 5.6204±0.0040 h |
|
| 0.20 (assumed) 0.200±0.008 0.3104±0.0340 0.461±0.057 |
|
|
B–V = 0.895 U–B = 0.525 Tholen = S · S |
|
| 11.57±0.48 · 11.82 · 11.940±0.001 (R) | |
1274 Delportia, provisional designation 1932 WC, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 28 November 1932, by Belgian astronomer Eugène Delporte at Uccle Observatory in Belgium. It was named after the discoverer himself.
Delportia is a stony S-type asteroid on the Tholen taxonomic scheme. As a member of the Flora family, one of the largest families of the main belt, it orbits the Sun at a distance of 2.0–2.5 AU once every 3 years and 4 months (1,216 days). Its orbit has an eccentricity of 0.11 and an inclination of 4° with respect to the ecliptic. It was first identified as A918 RA at Heidelberg Observatory in 1918. The body's observation arc begins 6 years prior to its official discovery observation at Uccle, when it was identified as 1926 AA at Heidelberg in 1926.
A rotational light curve of Delportia was obtained by American astronomer Edwin E. Sheridan in March 2007. Light curve analysis gave a well-defined rotation period of 5.615 hours with a brightness variation of 0.05 magnitude (U=3), superseding a period of 5.5 hours with an amplitude of 0.09 magnitude obtained by French amateur astronomer René Roy in December 2005 (U=2). In February 2010, photometric observations at the Palomar Transient Factory gave a period of 5.6204 hours and an amplitude of 0.26 magnitude (U=2).
...
Wikipedia