astro.wikisort.org - Asteroid
673 Edda is a minor planet orbiting the Sun. It was discovered 20 September 1908 by the American astronomer Joel Hastings Metcalf, and was named for the Norse Edda literary works. The name may also have been inspired by the asteroid's provisional designation 1908 EA.[3] This asteroid is orbiting at a distance of 2.81 AU with a period of 4.72 yr and an eccentricity of 0.012.[2] The orbit is close to a 5:2 mean motion resonance with Jupiter, which is located at 2.824 AU.[4]
 Modelled shape of Edda from its lightcurve | |
| Discovery | |
|---|---|
| Discovered by | Joel Hastings Metcalf |
| Discovery site | Taunton, Massachusetts |
| Discovery date | 20 September 1908 |
| Designations | |
MPC designation | (673) Edda |
| Pronunciation | /ˈɛdə/[1] |
Alternative designations | 1908 EA |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 107.57 yr (39290 d) |
| Aphelion | 2.8471 AU (425.92 Gm) |
| Perihelion | 2.7821 AU (416.20 Gm) |
Semi-major axis | 2.8146 AU (421.06 Gm) |
| Eccentricity | 0.011542 |
Orbital period (sidereal) | 4.72 yr (1,724.7 d) 4.72 yr (1724.7 d) |
Mean anomaly | 199.04° |
Mean motion | 0° 12m 31.428s / day |
| Inclination | 2.8770° |
Longitude of ascending node | 226.723° |
Argument of perihelion | 236.303° |
| Physical characteristics | |
Mean radius | 18.765±0.5 km |
Synodic rotation period | 22.340 h (0.9308 d) |
Geometric albedo | 0.1044±0.006 |
Absolute magnitude (H) | 10.20 |
The long rotation period and low brightness amplitude of this asteroid make it more challenging for measurement of the rotation period. An extensive photometry campaign in 2015 provided a period of 22.340±0.004 h. The unusual light curve suggests that the asteroid shape is very asymmetric.[5] It is a stony S-type asteroid that spans a mean diameter of 38+6
−2 km.[6]
References
- Noah Webster (1884) A Practical Dictionary of the English Language
- "673 Edda (1908 EA)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.
- Schmadel, Lutz D. (2013), Dictionary of Minor Planet Names, Springer Berlin Heidelberg, p. 105, ISBN 9783662028049.
- Hahn, G.; et al. (June 1991), "Orbital evolution studies of asteroids near the 5:2 mean motion resonance with Jupiter", Astronomy and Astrophysics, 246 (2): 603–618, Bibcode:1991A&A...246..603H.
- Marciniak, Anna; et al. (June 2016), Różańska, Agata; Bejger, M. (eds.), "Difficult cases in photometric studies of asteroids", Proceedings of the Polish Astronomical Society, 3: 84–87, Bibcode:2016pas..conf...84M.
- Marciniak, A.; et al. (May 2019), "Thermal properties of slowly rotating asteroids: results from a targeted survey", Astronomy & Astrophysics, 625: 40, arXiv:1905.06056, Bibcode:2019A&A...625A.139M, doi:10.1051/0004-6361/201935129, A139.
External links
- 673 Edda at AstDyS-2, Asteroids—Dynamic Site
- 673 Edda at the JPL Small-Body Database
 | This article about an asteroid native to the asteroid belt is a stub. You can help Wikipedia by expanding it. |
На других языках
[de] (673) Edda
(673) Edda ist ein Asteroid des Hauptgürtels, der am 20. September 1908 von dem US-amerikanischen Astronomen Joel H. Metcalf in Taunton entdeckt wurde.- [en] 673 Edda
[es] (673) Edda
(673) Edda es un asteroide perteneciente al cinturón de asteroides descubierto en 1908 por Joel Hastings Metcalf.[ru] (673) Эдда
(673) Эдда (лат. Edda) — астероид главного пояса, который был открыт 20 сентября 1908 года американским астрономом Джоэлом Меткалфом в американском городе Таунтон (штат Массачусетс, США) и назван в честь одного из древнейших произведений германо-скандинавской мифологии, известного под названием Эдда[1].Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
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