343 Ostara (Asteroid)
From Cambridge , 343 Ostara is visible in the evening sky, becoming accessible around 21:13 (EDT), 44° above your southern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 21:58, 45° above your southern horizon. It will continue to be observable until around 01:46, when it sinks below 21° above your south-western horizon.
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Name
343 Ostara
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Object type
Asteroid
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Current position
| Computed for: | 11 May 2025 |
| Right ascension: | 12h34m [1] |
| Declination: | −02°15' [1] |
| Constellation: | Virgo |
| Magnitude: | 16.33 (V) [1] |
| Distance: | 2.04 AU 16.98 lightmin [1] |
| Angular motion (speed): | 15.31 arcmin/day[1] |
| Angular motion (pos ang): | 296.0° |
Orbital elements [1]
| Semi-major axis: | 2.41 AU |
| Eccentricity: | 0.229772 |
| Inclination: | 3.26° |
| Longitude ascending node: | 38.58° |
| Argument of perihelion: | 10.11° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 111.72° |
| Absolute mag (H): | 11.71 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 1.86 AU |
| Aphelion: | 2.97 AU |
| Orbital period: | 3.74 years |