Delia (minor planet designation: 395 Delia) is a large Main belt asteroid. It was discovered by the French astronomer Auguste Charlois on 30 November 1894 in Nice. Delia is an alternate name for the ancient Greco-Roman Moon goddess.[4] This asteroid is orbiting the Sun at a distance of 2.79 AU with an orbital eccentricity (ovalness) of 0.085 and a period of 4.64 yr. The orbital plane is tilted at an angle of 3.35° to the plane of the ecliptic.[2]
Discovery | |
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Discovered by | Auguste Charlois |
Discovery date | 30 November 1894 |
Designations | |
MPC designation | (395) Delia |
Pronunciation | /ˈdiːliə/[1] |
Alternative designations | 1894 BK |
Minor planet category | Main belt |
Orbital characteristics[2] | |
Epoch January 21, 2022 (JD 2459600.5) | |
Uncertainty parameter 0 | |
Observation arc | 89.57 yr (32,714 d) |
Aphelion | 3.021 AU (451.9 Gm) |
Perihelion | 2.550 AU (381.5 Gm) |
Semi-major axis | 2.785 AU (416.6 Gm) |
Eccentricity | 0.085 |
Orbital period (sidereal) | 4.64 yr (1,696.3 d) |
Mean anomaly | 277.5° |
Mean motion | 0° 12m 43.2s / day |
Inclination | 3.35° |
Longitude of ascending node | 259.3° |
Argument of perihelion | 11.1° |
Physical characteristics | |
Dimensions | 44.2±0.5 km |
Synodic rotation period | 19.681 h (0.82 d)[3] |
Geometric albedo | 0.033±0.004 |
Spectral type | C (Tholen) |
Absolute magnitude (H) | 10.38 |
This is a dark, carbonaceous body with a low albedo of 0.03 and is classified as a C-type asteroid in the Tholen taxonomy. It has an estimated cross-section of 44.2[2] km/s and is spinning with a rotation period of 19.7 hours.[3]
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