Back 738 Alagasta (كويكب) ARZ (738) Alagasta Catalan (738) Алагаста CE (738) Alagasta German 738 Αλαγάστα Greek 738 Alagasta Esperanto (738) Alagasta Spanish 738 Alagasta Basque سیارک ۷۳۸ Persian (738) Alagasta French
| 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) |
| Aphelion | 3.2040 AU (479.31 Gm) |
| Perihelion | 2.8698 AU (429.32 Gm) |
| 3.0369 AU (454.31 Gm) | |
| Eccentricity | 0.055023 |
| 5.29 yr (1,933.1 d) | |
| 146.545° | |
| 0° 11m 10.428s / day | |
| Inclination | 3.5344° |
| 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 | |
| 31.395±0.6 km | |
| 18.86 h (0.786 d)[1] | |
| 0.0398±0.002[1] | |
| 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 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]
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