221 Eos (Asteroid)
From South El Monte , 221 Eos is visible in the dawn sky, rising at 01:28 (PDT) and reaching an altitude of 38° above the eastern horizon before fading from view as dawn breaks at around 04:38.
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Name
221 Eos
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Object type
Asteroid
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Current position
| Computed for: | 14 July 2026 |
| Right ascension: | 02h23m [1] |
| Declination: | +05°14' [1] |
| Constellation: | Cetus |
| Magnitude: | 13.20 (V) [1] |
| Distance: | 2.82 AU 23.49 lightmin [1] |
Orbital elements [1]
| Semi-major axis: | 3.01 AU |
| Eccentricity: | 0.100888 |
| Inclination: | 10.89° |
| Longitude ascending node: | 141.71° |
| Argument of perihelion: | 192.43° |
| Epoch of elements: | 9 Jun 2026 |
| Mean Anomaly at epoch: | 26.70° |
| Absolute mag (H): | 7.71 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.71 AU |
| Aphelion: | 3.32 AU |
| Orbital period: | 5.23 years |
Source