The asteroid 101 Helena
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From Ashburn (click to change), 101 Helena is visible in the dawn sky, rising at 01:05 (EDT) – 4 hours and 52 minutes before the Sun – and reach an altitude of 38° above the eastern horizon before fading from view as dawn breaks at around 04:40.
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Name
101 Helena
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Object Type
Asteroid
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Current Position
| Constellation: | Aries |
| Magnitude: | 13.13 (V)[1] |
| Right Ascension: | 03h17m [1] |
| Declination: | +25°16' [1] |
Orbital Elements[1]
| Semi-major axis: | 2.58 AU |
| Eccentricity: | 0.140067 |
| Inclination: | 10.19° |
| Longitude ascending node: | 343.40° |
| Argument of perihelion: | 348.34° |
| Epoch of elements: | 30 June 2018 |
| Mean Anomaly at epoch: | 42.11° |
Derived quantities
| Perihelion: | 2.22 AU |
| Aphelion: | 2.95 AU |
| Orbital period: | 4.15 years |