848 Inna
848 Inna (prov. designation: A915 RQ or 1915 XS) is a carbonaceous Themistian asteroid from the outer regions of the asteroid belt. It was discovered on 5 September 1915, by astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The C-type asteroid measures approximately 33 kilometers (21 miles) in diameter, while its rotation period remains unknown. It was named after Russian astronomer Inna Nikolaevna Leman-Balanovskaya (1881–1945).
| Discovery | |
|---|---|
| Discovered by | G. Neujmin |
| Discovery site | Simeiz Obs. |
| Discovery date | 5 September 1915 |
| Designations | |
MPC designation | (848) Inna |
Named after | Inna Nikolaevna Leman-Balanovskaya (Russian astronomer) |
Alternative designations | A915 RQ · 1932 WJ 1934 AC · 1934 CM1 1934 CV · 1937 RD 1959 TJ · A905 YA 1915 XS · 1905 YA |
Minor planet category | main-belt · (outer) Themis |
| Orbital characteristics | |
| Epoch 31 May 2020 (JD 2459000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 114.10 yr (41,676 d) |
| Aphelion | 3.6160 AU |
| Perihelion | 2.6039 AU |
Semi-major axis | 3.1100 AU |
| Eccentricity | 0.1627 |
Orbital period (sidereal) | 5.48 yr (2,003 d) |
Mean anomaly | 56.581° |
Mean motion | 0° 10m 46.92s / day |
| Inclination | 1.0538° |
Longitude of ascending node | 207.82° |
| 125.37° | |
| Physical characteristics | |
Mean diameter | 33.027±0.130 km |
Synodic rotation period | unknown |
| 0.069±0.012 | |
| C (S3OS2-TH) Cb (S3OS2-BB) | |
| 11.3 | |
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