171 Ophelia (Asteroid)
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From South El Monte , 171 Ophelia is visible in the morning sky, becoming accessible around 23:09, when it reaches an altitude of 21° above your eastern horizon. It will then reach its highest point in the sky at 03:56, 68° above your southern horizon. It will be lost to dawn twilight around 05:33, 59° above your south-western horizon.
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Name
171 Ophelia
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Object type
Asteroid
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Current position
| Computed for: | 15 September 2025 |
| Right ascension: | 02h43m [1] |
| Declination: | +12°32' [1] |
| Constellation: | Aries |
| Magnitude: | 14.11 (V) [1] |
| Distance: | 2.60 AU 21.64 lightmin [1] |
| Angular motion (speed): | 11.96 arcmin/day[1] |
| Angular motion (pos ang): | 251.0° |
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 |
Visibility from South El Monte
All times shown in South El Monte local time.