Asteroid 129 Antigone Observation Details
Antigone Daily Motion
Antigone rise at 15:11, and will be at 29° when twilight starts at 18:41. It will reach its transit at 32° at 20:03, and will set at 00:55, before twighlight ends at 03:23.129 Antigone will be visible until December, 22, when it will move too close to the Sun. During this time, its proximity to the Sun will cause it to disappear from the night sky, making it unobservable for a while.
Antigone Visibility Timetable on September 17
Antigone Rise and Set Timetable
| Time | Elevation | |
| Moon Rise, 29.5% illuminated | 23:16 | 17° |
| Moon Set | 14:45 | -5° |
| Antigone rise | 15:11 | |
| Sunset | 17:12 | 19° |
| Civil sunset | 17:39 | 23° |
| Astrosession begin | 18:41 | 29° |
| Antigone transit | 20:03 | 32° |
| Antigone set | 00:55 | |
| Astrosession end | 03:23 | -28° |
Track Antigone Position Throughout the Night
← Wed, 17 September 2025 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Antigone changing position in the night sky.
Antigone Description
Antigone, designated as 129 Antigone, is a main-belt asteroid, located between Mars and Jupiter in the solar system. With a diameter of 114 km, 129 Antigone completes its orbit around the Sun in 4.9 years. At the moment, 129 Antigone is 1.826 AU (273,105,873 km) from Earth, and it is located in the constellation Capricornus.Current position of Antigone in Solar System
| Date | Wed, 17 September 2025 |
| Distance from Earth to Antigone | 1.8271 AU (273,330,270km) |
| Elongation | 133° |
| Angular diameter | " |
| Magnitude | 11.1 |
Finder Chart for Antigone
Double-click to unlock the map.
| Object name | 129 Antigone |
| Field of view | |
| Limiting magnitude | |
| 129 Antigone coordinates | 20.69046, -20.74078 |
| Center coordinates | 20.69046, -20.74078 |
Annual motion of Antigone
| Date | Thu, 18 September 2025 |
| Twighlight start | 18:39 |
| Twighlight end | 03:22 |
| Twighlight duration | 9h 43m |
| Rise | 15:07 |
| Set | 00:51 |
| Elevation at transit | 32° |
| Transit time | 19:59 |
| Equatorial coordinates | RA: 20h 41m 25s", Dec: -20° 48' 05s |
| Magnitude | 11 |
| Constellation | Capricornus |
The graph illustrates the annual visibility pattern of a Antigone, providing a comprehensive overview of its daily appearances and transit times throughout the year.
The graph is structured with the vertical axis showing the hours of the day, ranging from 12 AM to 12 AM the next day, while the horizontal axis spans each day of the year.
The reddish shaded area indicates the periods when the Antigone is above the horizon, visible to observers. The white line marks the times when the celestial object reaches its highest point in the sky each day, known as the transit.
The graph is structured with the vertical axis showing the hours of the day, ranging from 12 AM to 12 AM the next day, while the horizontal axis spans each day of the year.
The reddish shaded area indicates the periods when the Antigone is above the horizon, visible to observers. The white line marks the times when the celestial object reaches its highest point in the sky each day, known as the transit.
Astrometric & Physical Parameters of 129 Antigone
Coordinates & Visibility
| Right Ascension | 20.69046° |
| Declination | -20.74078° |
| Magnitude | 11.1 |
| Constellation | Capricornus |
| Elevation | 4.6° |
| Azimuth | -120.6° |
Acknowledgments
We acknowledge NASA's Jet Propulsion Laboratory (JPL) for providing essential data on asteroids and comets through their Small-Body Database (SBDB) and Center for Near-Earth Object Studies (CNEOS). Their continuous efforts in tracking and cataloging these celestial bodies make it possible to offer accurate and up-to-date information on their positions, orbits, and physical characteristics.