666 Desdemona (Asteroid)
From South El Monte , 666 Desdemona will become visible at around 17:48 (PST), 51° above your southern horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 23:02.
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Name
666 Desdemona
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Object type
Asteroid
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Current position
| Computed for: | 17 December 2025 |
| Right ascension: | 23h03m [1] |
| Declination: | −03°02' [1] |
| Constellation: | Pisces |
| Magnitude: | 14.87 (V) [1] |
| Distance: | 1.90 AU 15.83 lightmin [1] |
Orbital elements [1]
| Semi-major axis: | 2.59 AU |
| Eccentricity: | 0.236282 |
| Inclination: | 7.58° |
| Longitude ascending node: | 215.29° |
| Argument of perihelion: | 174.14° |
| Epoch of elements: | 21 Nov 2025 |
| Mean Anomaly at epoch: | 344.97° |
| Absolute mag (H): | 10.70 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 1.98 AU |
| Aphelion: | 3.21 AU |
| Orbital period: | 4.18 years |