Asteroid 354 Eleonora Observation Details
Eleonora Daily Motion
354 Eleonora will be visible until September, 24, 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.
Eleonora Visibility Timetable on April 15
Eleonora Rise and Set Timetable
| Time | Elevation | |
| Astrosession begin | 21:46 | -6° |
| Moon Rise, 96.1% illuminated | 22:10 | -1° |
| Eleonora rise | 22:15 | |
| Eleonora transit | 04:30 | 55° |
| Astrosession end | 05:16 | 53° |
| Civil sunrise | 06:25 | 46° |
| Sunrise | 06:55 | 42° |
| Moon Set | 07:51 | 33° |
| Eleonora set | 10:44 |
Track Eleonora Position Throughout the Night
← Tue, 15 April 2025 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Eleonora changing position in the night sky.
Eleonora Description
Eleonora, designated as 354 Eleonora, is a main-belt asteroid, located between Mars and Jupiter in the solar system. With a diameter of 148 km, 354 Eleonora completes its orbit around the Sun in 4.7 years. At the moment, 354 Eleonora is 1.943 AU (290,668,663 km) from Earth, and it is located in the constellation Hercules.Current position of Eleonora in Solar System
| Date | Tue, 15 April 2025 |
| Distance from Earth to Eleonora | 1.943 AU (290,668,663km) |
| Elongation | 133° |
| Angular diameter | " |
| Magnitude | 10.41 |
Finder Chart for Eleonora
Double-click to unlock the map.
| Object name | 354 Eleonora |
| Field of view | |
| Limiting magnitude | |
| 354 Eleonora coordinates | 16.552870411656, 4.6096579840683 |
| Center coordinates | 16.552870411656, 4.6096579840683 |
Annual motion of Eleonora
| Date | Wed, 16 April 2025 |
| Twighlight start | 21:47 |
| Twighlight end | 05:14 |
| Twighlight duration | 7h 27m |
| Rise | 22:11 |
| Set | 10:40 |
| Elevation at transit | 55° |
| Transit time | 04:25 |
| Equatorial coordinates | RA: 16h 32m 53s", Dec: 04° 43' 47s |
| Magnitude | 10 |
| Constellation | Hercules |
The graph illustrates the annual visibility pattern of a Eleonora, 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 Eleonora 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 Eleonora 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.