397 Vienna (Asteroid)
From South El Monte , 397 Vienna is not observable – it will reach its highest point in the sky during daytime and is no higher than 12° above the horizon at dusk.
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Name
397 Vienna
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Object type
Asteroid
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Current position
| Computed for: | 18 September 2025 |
| Right ascension: | 14h36m [1] |
| Declination: | −13°51' [1] |
| Constellation: | Libra |
| Magnitude: | 15.31 (V) [1] |
| Distance: | 3.58 AU 29.75 lightmin [1] |
| Angular motion (speed): | 8.05 arcmin/day[1] |
| Angular motion (pos ang): | 273.8° |
Orbital elements [1]
| Semi-major axis: | 2.63 AU |
| Eccentricity: | 0.247582 |
| Inclination: | 12.87° |
| Longitude ascending node: | 227.88° |
| Argument of perihelion: | 139.96° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 196.99° |
| Absolute mag (H): | 9.38 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 1.98 AU |
| Aphelion: | 3.29 AU |
| Orbital period: | 4.28 years |