1139 Atami (Asteroid)
From South El Monte , 1139 Atami is visible in the dawn sky, rising at 03:22 (PST) – 3 hours and 30 minutes before the Sun – and reaching an altitude of 24° above the south-eastern horizon before fading from view as dawn breaks at around 05:48.
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Name
1139 Atami
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Object type
Asteroid
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Current position
| Computed for: | 23 December 2025 |
| Right ascension: | 14h53m [1] |
| Declination: | −17°29' [1] |
| Constellation: | Libra |
| Magnitude: | 17.62 (V) [1] |
| Distance: | 2.91 AU 24.23 lightmin [1] |
Orbital elements [1]
| Semi-major axis: | 1.95 AU |
| Eccentricity: | 0.255660 |
| Inclination: | 13.09° |
| Longitude ascending node: | 213.29° |
| Argument of perihelion: | 206.73° |
| Epoch of elements: | 21 Nov 2025 |
| Mean Anomaly at epoch: | 118.66° |
| Absolute mag (H): | 12.55 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 1.45 AU |
| Aphelion: | 2.45 AU |
| Orbital period: | 2.72 years |