221 Eos (Asteroid)
From South El Monte , 221 Eos will become visible at around 19:00 (PDT), 33° above your southern horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 23:05.
|
Name
221 Eos
|
Object type
Asteroid
|
Current position
| Computed for: | 30 October 2025 |
| Right ascension: | 19h46m [1] |
| Declination: | −20°02' [1] |
| Constellation: | Sagittarius |
| Magnitude: | 13.16 (V) [1] |
| Distance: | 2.75 AU 22.85 lightmin [1] |
| Angular motion (speed): | 12.63 arcmin/day[1] |
| Angular motion (pos ang): | 271.0° |
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 |