129 Antigone (Asteroid)
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From South El Monte , 129 Antigone will become visible at around 17:46 (PST), 33° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 21:33.
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Name
129 Antigone
|
Object type
Asteroid
|
Current position
| Computed for: | 09 December 2025 |
| Right ascension: | 21h47m [1] |
| Declination: | −18°37' [1] |
| Constellation: | Capricornus |
| Magnitude: | 12.63 (V) [1] |
| Distance: | 3.06 AU 25.42 lightmin [1] |
| Angular motion (speed): | 11.67 arcmin/day[1] |
| Angular motion (pos ang): | 263.1° |
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 |
Visibility from South El Monte
All times shown in South El Monte local time.