101 Helena (Asteroid)
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From South El Monte , 101 Helena is visible between 21:59 and 23:57. It will become accessible at around 21:59, when it rises to an altitude of 21° above your southern horizon. It will reach its highest point in the sky at 22:58, 23° above your southern horizon. It will become inaccessible at around 23:57 when it sinks below 21° above your southern horizon.
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Name
101 Helena
|
Object type
Asteroid
|
Current position
| Computed for: | 31 May 2025 |
| Right ascension: | 14h45m [1] |
| Declination: | −32°30' [1] |
| Constellation: | Centaurus |
| Magnitude: | 12.13 (V) [1] |
| Distance: | 1.60 AU 13.35 lightmin [1] |
| Angular motion (speed): | 22.29 arcmin/day[1] |
| Angular motion (pos ang): | 294.1° |
Orbital elements [1]
| Semi-major axis: | 2.58 AU |
| Eccentricity: | 0.140627 |
| Inclination: | 10.19° |
| Longitude ascending node: | 343.37° |
| Argument of perihelion: | 347.82° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 252.39° |
| Absolute mag (H): | 8.42 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.22 AU |
| Aphelion: | 2.95 AU |
| Orbital period: | 4.15 years |
Visibility from South El Monte
All times shown in South El Monte local time.