1075 Helina
Modelled shape of Helina from its lightcurve | |
| Discovery | |
|---|---|
| Discovered by | G. Neujmin |
| Discovery site | Simeiz Obs. |
| Discovery date | 29 September 1926 |
| Designations | |
| (1075) Helina | |
Named after | Helij Neujmin (discoverer's son) |
| 1926 SC · 1930 KV 1965 CB · A906 YG A916 WH | |
| main-belt · (outer) Eos | |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 110.85 yr (40,489 days) |
| Aphelion | 3.3528 AU |
| Perihelion | 2.6705 AU |
| 3.0116 AU | |
| Eccentricity | 0.1133 |
| 5.23 yr (1,909 days) | |
| 156.59° | |
| 0° 11m 18.96s / day | |
| Inclination | 11.523° |
| 100.81° | |
| 250.61° | |
| Physical characteristics | |
| 26.198±0.414 km 30.39±7.76 km 34.48±0.58 km 35.52 km 37.93±0.85 km | |
| 44.554±0.1526 h 44.6768±0.0001 h 44.6770±0.0002 h 44.677±0.001 h 44.9±0.1 h | |
Pole ecliptic latitude |
|
| 0.11±0.07 0.111±0.005 0.1220 0.129±0.009 | |
| Tholen = SU B–V = 0.765 U–B = 0.370 | |
| 10.10±0.43 · 10.15 · 10.31 · 10.371±0.003 (R) | |
1075 Helina, provisional designation 1926 SC, is a stony Eos asteroid from the outer regions of the asteroid belt, approximately 34 kilometers (21 miles) in diameter. It was discovered on 29 September 1926, by astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The asteroid was named after the discoverer's son, Helij Neujmin.