Astronomy:476 Hedwig
From HandWiki
Short description: Main-belt asteroid
| Discovery | |
|---|---|
| Discovered by | Luigi Carnera |
| Discovery site | Heidelberg |
| Discovery date | 17 August 1901 |
| Designations | |
| (476) Hedwig | |
| Pronunciation | /ˈhɛdwɪɡ/ German: [ˈheːtvɪç][1] |
| 1901 GQ | |
| Minor planet category | Main belt |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 114.66 yr (41880 d) |
| |{{{apsis}}}|helion}} | 2.843586228752500 astronomical unit|AU (425.39444497321 Gm) |
| |{{{apsis}}}|helion}} | 2.458818277348141 AU (367.83397872952 Gm) |
| 2.651202253050 AU (396.6142118513 Gm) | |
| Eccentricity | 0.07256480545036940 |
| Orbital period | 4.32 yr (1576.7 d) |
| Mean anomaly | 277.3588495717540° |
| Mean motion | 0° 13m 41.944s / day |
| Inclination | 10.92403953516030° |
| Longitude of ascending node | 286.3817373411550° |
| 0.2030128925787450° | |
| Physical characteristics | |
| Dimensions | 116.76±2.6 km |
| Rotation period | 27.33 h (1.139 d) |
| Geometric albedo | 0.0493±0.002 |
| P (Tholen), X (SMASSII) | |
| Absolute magnitude (H) | 8.55 |
Hedwig (minor planet designation: 476 Hedwig) (1901 GQ) is a main-belt asteroid discovered on August 17, 1901, by Luigi Carnera at Heidelberg. Named in honour of the wife of Swedish-Danish astronomer Elis Strömgren.[3]
See also
References
- ↑ (German Names)
- ↑ "476 Hedwig (1901 GQ)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=476;cad=1.
- ↑ Schmadel, Lutz D. (2013-03-09) (in en). Dictionary of Minor Planet Names. Springer Science & Business Media. ISBN 978-3-662-02804-9. https://books.google.com/books?id=2lzoCAAAQBAJ&dq=476+Hedwig&pg=PA81.
External links
- 476 Hedwig at AstDyS-2, Asteroids—Dynamic Site
- 476 Hedwig at the JPL Small-Body Database
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