171 Ophelia (Asteroid)
From South El Monte , 171 Ophelia is visible in the dawn sky, rising at 01:48 (PDT) – 3 hours and 53 minutes before the Sun – and reaching an altitude of 32° above the eastern horizon before fading from view as dawn breaks at around 04:30.
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Name
171 Ophelia
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Object type
Asteroid
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Current position
| Computed for: | 01 July 2025 |
| Right ascension: | 02h07m [1] |
| Declination: | +10°22' [1] |
| Constellation: | Cetus |
| Magnitude: | 15.00 (V) [1] |
| Distance: | 3.69 AU 30.71 lightmin [1] |
| Angular motion (speed): | 8.12 arcmin/day[1] |
| Angular motion (pos ang): | 249.2° |
Orbital elements [1]
| Semi-major axis: | 3.13 AU |
| Eccentricity: | 0.132569 |
| Inclination: | 2.55° |
| Longitude ascending node: | 100.47° |
| Argument of perihelion: | 55.33° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 204.41° |
| Absolute mag (H): | 8.64 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.71 AU |
| Aphelion: | 3.54 AU |
| Orbital period: | 5.53 years |