129 Antigone (Asteroid)
From Cambridge , 129 Antigone is visible in the dawn sky, rising at 01:04 (EDT) and reaching an altitude of 27° above the south-eastern horizon before fading from view as dawn breaks at around 04:06.
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Name
129 Antigone
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Object type
Asteroid
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Current position
| Computed for: | 11 May 2025 |
| Right ascension: | 21h02m [1] |
| Declination: | −10°20' [1] |
| Constellation: | Aquarius |
| Magnitude: | 11.60 (V) [1] |
| Distance: | 2.05 AU 17.09 lightmin [1] |
| Angular motion (speed): | 17.25 arcmin/day[1] |
| Angular motion (pos ang): | 269.4° |
Orbital elements [1]
| Semi-major axis: | 2.87 AU |
| Eccentricity: | 0.213046 |
| Inclination: | 12.27° |
| Longitude ascending node: | 135.66° |
| Argument of perihelion: | 110.58° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 6.74° |
| Absolute mag (H): | 7.01 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.26 AU |
| Aphelion: | 3.48 AU |
| Orbital period: | 4.86 years |