Astronomy:738 Alagasta
From HandWiki
| Discovery | |
|---|---|
| Discovered by | Franz Kaiser |
| Discovery site | Heidelberg |
| Discovery date | 7 January 1913 |
| Designations | |
| (738) Alagasta | |
| Pronunciation | /æləˈɡæstə/ |
| Named after | Gau-Algesheim |
| 1913 QO | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 103.3 yr (37,720 d) |
| |{{{apsis}}}|helion}} | 3.2040 astronomical unit|AU (479.31 Gm) |
| |{{{apsis}}}|helion}} | 2.8698 AU (429.32 Gm) |
| 3.0369 AU (454.31 Gm) | |
| Eccentricity | 0.055023 |
| Orbital period | 5.29 yr (1,933.1 d) |
| Mean anomaly | 146.545° |
| Mean motion | 0° 11m 10.428s / day |
| Inclination | 3.5344° |
| Longitude of ascending node | 132.115° |
| 41.826° | |
| Earth MOID | 1.87517 AU (280.521 Gm) |
| Jupiter MOID | 1.76226 AU (263.630 Gm) |
| TJupiter | 3.236 |
| Physical characteristics | |
| Mean radius | 31.395±0.6 km |
| Rotation period | 18.86 h (0.786 d)[1] |
| Geometric albedo | 0.0398±0.002[1] |
| Absolute magnitude (H) | 10.13[1] |
738 Alagasta (/æləˈɡæstə/) is a main belt asteroid.[2] It was discovered from Heidelberg on 7 January 1913 by German astronomer Franz Kaiser. The asteroid was named in honor of Gau-Algesheim, previously Alaghastesheim, which is the home city of the discoverer's family.[3] This body is orbiting at a distance of 3.04 astronomical unit|AU with a period of 5.29 years and an eccentricity of 0.055. The orbital plane is inclined at an angle of 3.53° to the plane of the ecliptic.[1]
Photometric measurements made of the asteroid during 2015 produced a light curve that showed a rotation period of 18.86±0.01 h with a brightness variation of 0.11 in magnitude.[2] The asteroid is roughly 63 km in diameter and has a low albedo.[1]
See also
- List of minor planets/701–800
- Meanings of minor planet names: 501–1000
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 "JPL Small-Body Database Browser: 738 Alagasta (1913 QO)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=738.
- ↑ 2.0 2.1 Garceran, Alfonso Carreno et al. (January 2016), "Nineteen Asteroids Lightcurves at Asteroids Observers (OBAS) - MPPD: 2015 April - September", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers 43 (1): 92–97, Bibcode: 2016MPBu...43...92G.
- ↑ Schmadel, Lutz D. (2013), Dictionary of Minor Planet Names, Springer Berlin Heidelberg, p. 111, ISBN 9783662066157, https://books.google.com/books?id=eHv1CAAAQBAJ&pg=PA111.
External links
- 738 Alagasta at AstDyS-2, Asteroids—Dynamic Site
- 738 Alagasta at the JPL Small-Body Database
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