1139 Atami (Asteroid)
From South El Monte , 1139 Atami is not observable – it will reach its highest point in the sky during daytime and is 11° below the horizon at dusk.
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Name
1139 Atami
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Object type
Asteroid
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Current position
| Computed for: | 31 August 2025 |
| Right ascension: | 11h20m [1] |
| Declination: | −01°21' [1] |
| Constellation: | Leo |
| Magnitude: | 17.06 (V) [1] |
| Distance: | 3.02 AU 25.14 lightmin [1] |
| Angular motion (speed): | 13.15 arcmin/day[1] |
| Angular motion (pos ang): | 284.0° |
Orbital elements [1]
| Semi-major axis: | 1.95 AU |
| Eccentricity: | 0.255769 |
| Inclination: | 13.09° |
| Longitude ascending node: | 213.29° |
| Argument of perihelion: | 206.76° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 9.82° |
| Absolute mag (H): | 12.57 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 1.45 AU |
| Aphelion: | 2.45 AU |
| Orbital period: | 2.72 years |