53311 Deucalion
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| Discovery A | |
|---|---|
| Discoverer | Deep Ecliptic Survey |
| Discovery date | April 18, 1999 |
| Alternate designations B |
1999 HU11 |
| Category | TNO (cubewano) |
| Orbital elements C | |
|
|
|
| Eccentricity (e) | 0.063 |
| Semi-major axis (a) | 44.368 AU |
| Perihelion (q) | 41.579 AU |
| Aphelion (Q) | 47.157 AU |
| Orbital period (P) | 295.540 y |
| Mean orbital speed | 4.467 km/s |
| Inclination (i) | 0.366 ° |
| Longitude of the ascending node (Ω) |
51.570 ° |
| Argument of perihelion (ω) |
235.548 ° |
| Mean anomaly (M) | 291.869 ° |
| Physical characteristics D | |
| Dimensions | 497 km |
| Mass | ?×10? kg |
| Density | ? g/cm³ |
| Surface gravity | ? m/s² |
| Escape velocity | ? km/s |
| Rotation period | ? d |
| Spectral class | ? |
| Absolute magnitude | 6.60 |
| Albedo (geometric) | 0.10? |
| Mean surface temperature |
~42 K |
53311 Deucalion (original provisional designation: 1999 HU11) is a trans-Neptunian object (TNO). It was discovered in 1999 by the Deep Ecliptic Survey (DES). It is classified as a cubewano, and named after Deucalion, from Greek mythology.
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