221 Eos (Asteroid)
From South El Monte , 221 Eos is visible in the dawn sky, rising at 23:44 (PDT) and reaching an altitude of 43° above the southern horizon before fading from view as dawn breaks at around 04:42.
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Name
221 Eos
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Object type
Asteroid
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Current position
| Computed for: | 13 May 2025 |
| Right ascension: | 19h50m [1] |
| Declination: | −11°23' [1] |
| Constellation: | Aquila |
| Magnitude: | 12.74 (V) [1] |
| Distance: | 2.25 AU 18.70 lightmin [1] |
| Angular motion (speed): | 15.62 arcmin/day[1] |
| Angular motion (pos ang): | 270.4° |
Orbital elements [1]
| Semi-major axis: | 3.01 AU |
| Eccentricity: | 0.101244 |
| Inclination: | 10.89° |
| Longitude ascending node: | 141.72° |
| Argument of perihelion: | 192.51° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 292.39° |
| Absolute mag (H): | 7.76 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.71 AU |
| Aphelion: | 3.32 AU |
| Orbital period: | 5.23 years |