343 Ostara (Asteroid)
From South El Monte , 343 Ostara is visible in the dawn sky, rising at 02:51 (PDT) and reaching an altitude of 26° above the south-eastern horizon before fading from view as dawn breaks at around 06:00.
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Name
343 Ostara
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Object type
Asteroid
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Current position
| Computed for: | 16 March 2026 |
| Right ascension: | 18h24m [1] |
| Declination: | −25°16' [1] |
| Constellation: | Sagittarius |
| Magnitude: | 17.28 (V) [1] |
| Distance: | 2.88 AU 23.93 lightmin [1] |
Orbital elements [1]
| Semi-major axis: | 2.41 AU |
| Eccentricity: | 0.229521 |
| Inclination: | 3.26° |
| Longitude ascending node: | 38.58° |
| Argument of perihelion: | 10.13° |
| Epoch of elements: | 21 Nov 2025 |
| Mean Anomaly at epoch: | 190.66° |
| Absolute mag (H): | 11.70 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 1.86 AU |
| Aphelion: | 2.97 AU |
| Orbital period: | 3.75 years |