343 Ostara (Asteroid)

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From South El Monte , 343 Ostara is not observable – it will reach its highest point in the sky during daytime and is 9° below the horizon at dusk.

Name 343 Ostara
Object type Asteroid
Current position
Computed for:05 November 2025
Right ascension:15h11m [1]
Declination:−18°25' [1]
Constellation:Libra
Magnitude:17.32 (V) [1]
Distance:3.94 AU
32.79 lightmin [1]
Angular motion (speed):7.64 arcmin/day[1]
Angular motion (pos ang):288.6°
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

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