Asteroid Amalthea Observation Details
Amalthea Daily Motion
113 Amalthea will be visible until February, 12, 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.
Amalthea Visibility on August 09
113 Amalthea is visible in the early morning sky until sunrise
Amalthea Rise and Set Timetable
| Time | Elevation | |
| Astrosession begin | 19:46 | -4° |
| Amalthea rise | 20:08 | |
Moon Rise, 18.8% illuminated  | 23:20 | 35° |
| Amalthea transit | 01:49 | 47° |
| Astrosession end | 02:40 | 45° |
| Twighlight end | 03:16 | 42° |
| Civil sunrise | 03:50 | 38° |
| Sunrise | 04:20 | 34° |
| Amalthea set | 07:30 | |
| Moon Set | 15:12 | -53° |
Track Amalthea Position Throughout the Night
← Sun, 9 August 2026 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Amalthea changing position in the night sky.
Amalthea Description
Amalthea, designated as 113 Amalthea, is a main-belt asteroid, located between Mars and Jupiter in the solar system. With a diameter of 50 km, 113 Amalthea completes its orbit around the Sun in 3.7 years. At the moment, 113 Amalthea is 1.66 AU (248,275,618 km) from Earth, and it is located in the constellation Aquarius.Current position of Amalthea in Solar System
| Date | Sun, 9 August 2026 |
| Distance from Earth to Amalthea | 1.65501 AU (247,585,972km) |
| Elongation | 140° |
| Angular diameter | " |
| Magnitude | 12.3 |
Finder Chart for Amalthea
Double-click to unlock the map.
| Object name | 113 Amalthea |
| Field of view | |
| Limiting magnitude | |
| 113 Amalthea coordinates | 23.89534, -5.76678 |
| Center coordinates | 23.89534, -5.76678 |
Annual motion of Amalthea
| Date | Sun, 9 August 2026 |
| Twighlight start | 19:42 |
| Twighlight end | 02:33 |
| Twighlight duration | 7h 51m |
| Rise | 20:08 |
| Set | 07:30 |
| Elevation at transit | 47° |
| Transit time | 01:49 |
| Equatorial coordinates | RA: 23h 53m 23s", Dec: -5° 51' 15s |
| Magnitude | 12 |
| Constellation | Aquarius |
The graph illustrates the annual visibility pattern of a Amalthea, 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 Amalthea 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. You can also view detailed visibility information in a dedicated table, including exact rise, transit, and set times for each date.
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 Amalthea 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. You can also view detailed visibility information in a dedicated table, including exact rise, transit, and set times for each date.
Astrometric & Physical Parameters of 113 Amalthea
Coordinates & Visibility
| Right Ascension | 23.89534° |
| Declination | -5.76678° |
| Magnitude | 12.3 |
| Constellation | Aquarius |
| Elevation | 34° |
| Azimuth | 228.1° |
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.