1546 Izsák
1546 Izsák, provisional designation 1941 SG1, is a background asteroid from the outer regions of the asteroid belt, approximately 27 kilometers in diameter. It was discovered on 28 September 1941, by Hungarian astronomer György Kulin at the Konkoly Observatory near Budapest, Hungary. The asteroid was named after Hungarian astronomer Imre Izsák.
Shape model of Izsák from its lightcurve | |
| Discovery | |
|---|---|
| Discovered by | G. Kulin |
| Discovery site | Konkoly Obs. |
| Discovery date | 28 September 1941 |
| Designations | |
MPC designation | (1546) Izsák |
Named after | Imre Izsák (Hungarian astronomer) |
Alternative designations | 1941 SG1 · 1935 QC 1938 FH · 1978 BF |
Minor planet category | main-belt · (outer) background |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 81.86 yr (29,898 days) |
| Aphelion | 3.5686 AU |
| Perihelion | 2.7886 AU |
Semi-major axis | 3.1786 AU |
| Eccentricity | 0.1227 |
Orbital period (sidereal) | 5.67 yr (2,070 days) |
Mean anomaly | 77.417° |
Mean motion | 0° 10m 26.04s / day |
| Inclination | 16.138° |
Longitude of ascending node | 190.47° |
| 280.94° | |
| Physical characteristics | |
Mean diameter | 19.31±0.85 km 26.08±1.45 km 26.438±0.139 km 28.487±0.110 km 42.23 km (calculated) |
Synodic rotation period | 7.33200±0.00005 h 7.350±0.006 h |
| 0.057 (assumed) 0.1153±0.0139 0.133±0.011 0.149±0.018 0.249±0.029 | |
| X · M · C | |
| 10.60 · 10.68±0.37 · 10.70 | |
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