101 Helena (Asteroid)
From South El Monte , 101 Helena is not observable – it will reach its highest point in the sky during daytime and is no higher than 13° above the horizon at dusk.
Name
101 Helena
|
Object type
Asteroid
|
Computed for: | 18 September 2025 |
Right ascension: | 15h54m [1] |
Declination: | −29°42' [1] |
Constellation: | Scorpius |
Magnitude: | 13.47 (V) [1] |
Distance: | 2.59 AU 21.51 lightmin [1] |
Angular motion (speed): | 13.32 arcmin/day[1] |
Angular motion (pos ang): | 283.7° |
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] |
Perihelion: | 2.22 AU |
Aphelion: | 2.95 AU |
Orbital period: | 4.15 years |
All times shown in South El Monte local time.