Asteroid 21 Lutetia Observation Details
Lutetia Daily Motion
Lutetia will be visible throughout the entire night. It will rise at 18:08, just before twilight begins, and will be at 16° when twilight starts at 19:36. It will reach its transit at 66° at 01:03, and will fade away as twilight ends at 05:55, being at 23° elevation.21 Lutetia will be visible until June, 17, 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.
Lutetia Visibility Timetable on February 13
Lutetia Rise and Set Timetable
| Time | Elevation | |
| Lutetia rise | 18:08 | |
| Moon Rise, 99.8% illuminated | 18:18 | 2° |
| Civil sunset | 18:32 | 4° |
| Astrosession begin | 19:36 | 16° |
| Lutetia transit | 01:03 | 66° |
| Astrosession end | 05:55 | 23° |
| Civil sunrise | 06:59 | 11° |
| Sunrise | 07:28 | 6° |
| Lutetia set | 07:59 | |
| Moon Set | 08:09 | -2° |
Track Lutetia Position Throughout the Night
← Thu, 13 February 2025 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Lutetia changing position in the night sky.
Lutetia Description
Lutetia, designated as 21 Lutetia, is a main-belt asteroid, located between Mars and Jupiter in the solar system. With a diameter of 96 km, 21 Lutetia completes its orbit around the Sun in 3.8 years. At the moment, 21 Lutetia is 1.849 AU (276,606,463 km) from Earth, and it is located in the constellation Leo.Current position of Lutetia in Solar System
| Date | Thu, 13 February 2025 |
| Distance from Earth to Lutetia | 1.8487 AU (276,561,584km) |
| Elongation | 175° |
| Angular diameter | " |
| Magnitude | 11.3 |
Finder Chart for Lutetia
Double-click to unlock the map.
| Object name | 21 Lutetia |
| Field of view | |
| Limiting magnitude | |
| 21 Lutetia coordinates | 10.10417, 16.22861 |
| Center coordinates | 10.10417, 16.22861 |
Annual motion of Lutetia
| Date | Thu, 13 February 2025 |
| Twighlight start | 19:31 |
| Twighlight end | 05:50 |
| Twighlight duration | 10h 19m |
| Rise | 18:07 |
| Set | 07:58 |
| Elevation at transit | 66° |
| Transit time | 01:03 |
| Equatorial coordinates | RA: 10h 05m 17s", Dec: 16° 19' 25s |
| Magnitude | 11 |
| Constellation | Leo |
The graph illustrates the annual visibility pattern of a Lutetia, 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 Lutetia 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 Lutetia 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.