astro.wikisort.org - Asteroid714 Ulula is a main belt asteroid. It is orbiting the Sun near the 3:1 Kirkwood Gap[4] with a period of 4.04 years and an eccentricity of 0.057. It was discovered by German astronomer J. Helffrich on 18 May 1911 from the Heidelberg Observatory and was named after an order of owls.[5] The asteroid has a mean radius of 20 km and is spinning with a rotation period of seven hours. Its pole of rotation lies just 4–14° away from the plane of the ecliptic.[6] The surface spectrum shows a pyroxene chemistry and is consistent with mesosiderites/HED meteorites.[4]
714 Ulula A three-dimensional model of 714 Ulula based on its light curve |
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Discovered by | J. Helffrich |
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Discovery site | Heidelberg Obs. |
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Discovery date | 18 May 1911 |
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MPC designation | (714) Ulula |
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Pronunciation | [1][2] |
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Alternative designations | 1911 LW |
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Epoch 31 July 2016 (JD 2457600.5) |
Uncertainty parameter 0 |
Observation arc | 104.92 yr (38323 d) |
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Aphelion | 2.6801 AU (400.94 Gm) |
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Perihelion | 2.3892 AU (357.42 Gm) |
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Semi-major axis | 2.5347 AU (379.19 Gm) |
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Eccentricity | 0.057381 |
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Orbital period (sidereal) | 4.04 yr (1474.0 d) |
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Mean anomaly | 128.475° |
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Mean motion | 0° 14m 39.264s / day |
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Inclination | 14.271° |
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Longitude of ascending node | 233.847° |
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Argument of perihelion | 232.003° |
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Mean radius | 19.59±1.2 km |
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Synodic rotation period | 6.998 h (0.2916 d) |
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Geometric albedo | 0.2711±0.037 |
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Absolute magnitude (H) | 9.1 |
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References
- "ululance". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
"ululant". Merriam-Webster Dictionary. - ulula
- "714 Ulula (1911 LW)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Archived from the original on 18 September 2020. Retrieved 5 May 2016.
- Fieber-Beyer, S. K.; et al. (March 2010), "Near-Infrared Spectroscopy of 3:1 Kirkwood Gap Asteroids 695 Bella, 714 Ulula, and 3066 McFadden", 41st Lunar and Planetary Science Conference, held March 1-5, 2010 in The Woodlands, Texas. LPI Contribution, vol. 1533, p. 1500, Bibcode:2010LPI....41.1500F
- Schmadel, Lutz (5 August 2003), Dictionary of minor planet names, vol. 1, Springer, p. 69, ISBN 9783540002383
- Marciniak, A.; et al. (May 2011), "Photometry and models of selected main belt asteroids. VIII. Low-pole asteroids", Astronomy & Astrophysics, 529: 14, Bibcode:2011A&A...529A.107M, doi:10.1051/0004-6361/201015365, A107
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На других языках
[de] (714) Ulula
(714) Ulula ist ein Asteroid des Hauptgürtels, der am 18. Mai 1911 vom deutschen Astronomen Joseph Helffrich in Heidelberg entdeckt wurde.
- [en] 714 Ulula
[es] (714) Ulula
(714) Ulula es un asteroide perteneciente al cinturón de asteroides descubierto el 18 de mayo de 1911 por Joseph Helffrich desde el observatorio de Heidelberg-Königstuhl, Alemania.
Está nombrado por una palabra que asemeja la llamada de las lechuzas.[2]
Forma parte de la familia asteroidal de María.[3]
[ru] (714) Улула
(714) Улула (лат. Ulula) — астероид из группы главного пояса, который принадлежит к светлому спектральному классу S и входит в состав семейства Марии. Он был открыт 18 мая 1911 года американским астрономом Джозефом Хелффричем в обсерватории и назван в честь латинского названия ястребиной совы (лат. Surnia ulula)[1].
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