Asteroid 3 Juno Observation Details
Juno Daily Motion
Juno will rise before twilight begins, at 20:20, and will reach 22° elevation by the time twilight commences at 22:21. It will reach its transit at 47° by 02:09 and gradually fade away as the night ends at 04:35, maintaining an elevation of around 36°.3 Juno will be visible until September, 2, 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.
Juno Visibility Timetable on May 09
Juno Rise and Set Timetable
| Time | Elevation | |
| Moon Rise, 87.4% illuminated | 17:00 | -37° |
| Juno rise | 20:20 | |
| Sunset | 20:32 | 2° |
| Civil sunset | 21:04 | 8° |
| Astrosession begin | 22:21 | 22° |
| Juno transit | 02:09 | 47° |
| Astrosession end | 04:35 | 36° |
| Moon Set | 04:45 | 34° |
| Civil sunrise | 05:52 | 23° |
| Sunrise | 06:23 | 18° |
| Juno set | 07:58 |
Track Juno Position Throughout the Night
← Fri, 9 May 2025 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Juno changing position in the night sky.
Juno Description
Juno, designated as 3 Juno, is a main-belt asteroid, located between Mars and Jupiter in the solar system. With a diameter of 246 km, 3 Juno completes its orbit around the Sun in 4.4 years. At the moment, 3 Juno is 2.376 AU (355,444,541 km) from Earth, and it is located in the constellation Serpens.Current position of Juno in Solar System
| Date | Fri, 9 May 2025 |
| Distance from Earth to Juno | 2.376 AU (355,444,541km) |
| Elongation | 162° |
| Angular diameter | " |
| Magnitude | 10.03 |
Finder Chart for Juno
Double-click to unlock the map.
| Object name | 3 Juno |
| Field of view | |
| Limiting magnitude | |
| 3 Juno coordinates | 15.776448862506, -2.9539257378661 |
| Center coordinates | 15.776448862506, -2.9539257378661 |
Annual motion of Juno
| Date | Sat, 10 May 2025 |
| Twighlight start | 22:18 |
| Twighlight end | 04:28 |
| Twighlight duration | 6h 10m |
| Rise | 20:15 |
| Set | 07:54 |
| Elevation at transit | 47° |
| Transit time | 02:04 |
| Equatorial coordinates | RA: 15h 45m 46s", Dec: -2° 52' 29s |
| Magnitude | 10 |
| Constellation | Serpens |
The graph illustrates the annual visibility pattern of a Juno, 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 Juno 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 Juno 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.
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.