381 Myrrha
| Discovery A | |
|---|---|
| Discoverer | Auguste Charlois |
| Discovery Date | January 10, 1894 |
| Alternate Designations | 1894 AS B |
| Category | Main belt |
| Orbital Elements C Epoch 30 January, 2005 (JD 2453400.5) | |
| Eccentricity (e) | 0.095 |
| Semi-Major Axis (a) | 481.534 Gm (3.219 AU) |
| Perihelion (q) | 435.617 Gm (2.912 AU) |
| Aphelion (Q) | 527.45 Gm (3.526 AU) |
| Orbital Period (P) | 2109.318 d (5.77 a) |
| Mean Orbital Speed | 16.6 km/s |
| Inclination (i) | 12.527° |
| Longitude of the Ascending Node (Ω) | 125.354° |
| Argument of Perihelion (ω) | 137.241° |
| Mean Anomaly (M) | 0.901° |
| Physical Characteristics | |
| Dimensions | 147.2×126.6 km |
| Mass | unknown |
| Density | unknown |
| Surface Gravity | unknown |
| Escape Velocity | unknown |
| Rotation Period | unknown |
| Spectral Class | C |
| Absolute Magnitude | 8.25 |
| Albedo | unknown |
| Mean Surface Temperature | unknown |
381 Myrrha is a very large Main belt asteroid. It is classified as a C-type asteroid and is probably composed of privitive carbonates.
It was discovered by Auguste Charlois on January 10, 1894 in Nice.
The Occultation of Alhena(γ Geminorum) by Myrrha was observed in Japan and China on January 13, 1991, and the size and shape of Myrrha were clarified [1].
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