Asteroid 89 Julia Observation Details
Julia Daily Motion
Julia will rise at 14:37, reaching 40° when twilight begins at 18:41. It will reach transit at 44° by 20:11 and will set before twilight ends at 01:44.89 Julia will be visible until February, 13, 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.
Julia Visibility Timetable on September 17
Julia Rise and Set Timetable
| Time | Elevation | |
| Moon Rise, 29.5% illuminated | 23:16 | 28° |
| Julia rise | 14:37 | |
| Moon Set | 14:45 | 1° |
| Sunset | 17:12 | 28° |
| Civil sunset | 17:39 | 32° |
| Astrosession begin | 18:41 | 40° |
| Julia transit | 20:11 | 44° |
| Julia set | 01:44 | |
| Astrosession end | 03:23 | -20° |
Track Julia Position Throughout the Night
← Wed, 17 September 2025 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Julia changing position in the night sky.
Julia Description
Julia, designated as 89 Julia, is a main-belt asteroid, located between Mars and Jupiter in the solar system. With a diameter of 146 km, 89 Julia completes its orbit around the Sun in 4.1 years. At the moment, 89 Julia is 1.263 AU (188,897,231 km) from Earth, and it is located in the constellation Aquarius.Current position of Julia in Solar System
| Date | Wed, 17 September 2025 |
| Distance from Earth to Julia | 1.2636 AU (189,031,869km) |
| Elongation | 137° |
| Angular diameter | " |
| Magnitude | 9.5 |
Finder Chart for Julia
Double-click to unlock the map.
| Object name | 89 Julia |
| Field of view | |
| Limiting magnitude | |
| 89 Julia coordinates | 20.81794, -8.35858 |
| Center coordinates | 20.81794, -8.35858 |
Annual motion of Julia
| Date | Thu, 18 September 2025 |
| Twighlight start | 18:39 |
| Twighlight end | 03:22 |
| Twighlight duration | 9h 43m |
| Rise | 14:33 |
| Set | 01:40 |
| Elevation at transit | 44° |
| Transit time | 20:07 |
| Equatorial coordinates | RA: 20h 48m 46s", Dec: -8° 16' 43s |
| Magnitude | 10 |
| Constellation | Aquarius |
The graph illustrates the annual visibility pattern of a Julia, 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 Julia 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 Julia 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 89 Julia
Coordinates & Visibility
| Right Ascension | 20.81794° |
| Declination | -8.35858° |
| Magnitude | 9.5 |
| Constellation | Aquarius |
| Elevation | 11.8° |
| Azimuth | -110.2° |
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.