404 Arsinoë
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Discovery
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| Discovered by | Auguste Charlois |
| Discovery date | June 20, 1895 |
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Designations
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| Alternate name(s) | 1895 BY |
| Minor planet category |
Main belt |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 465.119 Gm (3.109 AU) |
| Perihelion | 311.226 Gm (2.08 AU) |
| Semi-major axis | 388.173 Gm (2.595 AU) |
| Eccentricity | 0.198 |
| Orbital period | 1526.65 d (4.18 a) |
| Average orbital speed | 18.49 km/s |
| Mean anomaly | 129.956° |
| Inclination | 14.113° |
| Longitude of ascending node | 92.688° |
| Argument of perihelion | 121.01° |
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Physical characteristics
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| Dimensions | 98.0 km |
| Mass | unknown |
| Mean density | unknown |
| Equatorial surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | unknown |
| Albedo | unknown |
| Temperature | unknown |
| Spectral type | C |
| Absolute magnitude (H) | 9.01 |
404 Arsinoë is a large main-belt asteroid. It is classified as a C-type asteroid and is probably composed of carbonaceous material.
It was discovered by Auguste Charlois on June 20, 1895, in Nice.
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