763 Cupido
763 Cupido (prov. designation: A913 SE or 1913 ST) is a Flora asteroid, tumbler and slow rotator from the inner regions of the asteroid belt, approximately 7 kilometers (4.3 miles) in diameter. It was discovered on 25 September 1913, by German astronomer Franz Kaiser at the Heidelberg-Königstuhl State Observatory in southwest Germany. The S/L-type asteroid has an exceptionally long rotation period of 151 hours. It was named by its Latin name after Cupid, the Roman god of erotic love, attraction and affection.
| Discovery | |
|---|---|
| Discovered by | F. Kaiser |
| Discovery site | Heidelberg Obs. |
| Discovery date | 25 September 1913 |
| Designations | |
MPC designation | (763) Cupido |
| Pronunciation | /kjuːˈpaɪdoʊ/ |
Named after | Cupid (Latin: Cupīdō) (Roman god) |
Alternative designations | A913 SE · 1933 TA 1958 AF · 1913 ST |
Minor planet category | main-belt · (inner) Flora · background |
| Adjectives | Cupidinian /kjuːpɪˈdɪniən/ |
| Orbital characteristics | |
| Epoch 31 May 2020 (JD 2459000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 106.59 yr (38,932 d) |
| Aphelion | 2.6136 AU |
| Perihelion | 1.8693 AU |
Semi-major axis | 2.2415 AU |
| Eccentricity | 0.1660 |
Orbital period (sidereal) | 3.36 yr (1,226 d) |
Mean anomaly | 279.59° |
Mean motion | 0° 17m 37.32s / day |
| Inclination | 4.0828° |
Longitude of ascending node | 289.82° |
| 88.860° | |
| Physical characteristics | |
Mean diameter | 7.005±0.115 km |
Synodic rotation period | 151.5±0.1 h |
| 0.373±0.072 | |
| SL (SDSS-MOC) | |
| |
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