Asteroid 386 Siegena Observation Details
Siegena Daily Motion
Siegena rise at 14:49, and will be at 18° when twilight starts at 16:26. It will reach its transit at 42° at 20:16, and will set at 01:43, before twighlight ends at 03:44.386 Siegena will be visible until April, 18, 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.
Siegena Visibility Timetable on December 20
Siegena Rise and Set Timetable
| Time | Elevation | |
| Moon Rise, 0.4% illuminated | 05:19 | -42° |
| Moon Set | 14:25 | -5° |
| Siegena rise | 14:49 | |
| Sunset | 14:51 | 0° |
| Civil sunset | 15:22 | 6° |
| Astrosession begin | 16:26 | 18° |
| Siegena transit | 20:16 | 42° |
| Siegena set | 01:43 | |
| Astrosession end | 03:44 | -24° |
Track Siegena Position Throughout the Night
← Sat, 20 December 2025 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Siegena changing position in the night sky.
Siegena Description
Siegena, designated as 386 Siegena, is a main-belt asteroid, located between Mars and Jupiter in the solar system. With a diameter of 166 km, 386 Siegena completes its orbit around the Sun in 4.9 years. At the moment, 386 Siegena is 1.689 AU (252,670,804 km) from Earth, and it is located in the constellation Eridanus.Current position of Siegena in Solar System
| Date | Sat, 20 December 2025 |
| Distance from Earth to Siegena | 1.689 AU (252,670,804km) |
| Elongation | 137° |
| Angular diameter | " |
| Magnitude | 11.72 |
Finder Chart for Siegena
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| Object name | 386 Siegena |
| Field of view | |
| Limiting magnitude | |
| 386 Siegena coordinates | 4.0754061351019, -10.383344408792 |
| Center coordinates | 4.0754061351019, -10.383344408792 |
Annual motion of Siegena
| Date | Sun, 21 December 2025 |
| Twighlight start | 16:22 |
| Twighlight end | 03:38 |
| Twighlight duration | 11h 16m |
| Rise | 14:44 |
| Set | 01:38 |
| Elevation at transit | 42° |
| Transit time | 20:11 |
| Equatorial coordinates | RA: 04h 03m 59s", Dec: -10° 18' 10s |
| Magnitude | 12 |
| Constellation | Eridanus |
The graph illustrates the annual visibility pattern of a Siegena, 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 Siegena 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 Siegena 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 386 Siegena
Coordinates & Visibility
| Right Ascension | 4.0754061351019° |
| Declination | -10.383344408792° |
| Magnitude | 11.72 |
| Constellation | Eridanus |
| Elevation | 7.9° |
| Azimuth | 109.5° |
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.