Asteroid 22 Kalliope Observation Details
Kalliope Daily Motion
Kalliope will be visible throughout the entire night. It will rise at 18:35, just before twilight begins, and will be at 1° when twilight starts at 18:41. It will reach its transit at 30° at 23:22, and will fade away as twilight ends at 03:23, being at 8° elevation.22 Kalliope will be visible until September, 22, 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.
Kalliope Visibility Timetable on September 17
Kalliope Rise and Set Timetable
| Time | Elevation | |
| Moon Rise, 29.5% illuminated | 23:16 | 30° |
| Moon Set | 14:45 | -44° |
| Kalliope rise | 18:35 | |
| Astrosession begin | 18:41 | 1° |
| Kalliope transit | 23:22 | 30° |
| Astrosession end | 03:23 | 8° |
| Kalliope set | 04:08 |
Track Kalliope Position Throughout the Night
← Wed, 17 September 2025 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Kalliope changing position in the night sky.
Kalliope Description
Kalliope, designated as 22 Kalliope, is a main-belt asteroid, located between Mars and Jupiter in the solar system. With a diameter of 168 km, 22 Kalliope completes its orbit around the Sun in 5 years. At the moment, 22 Kalliope is 1.836 AU (274,676,650 km) from Earth, and it is located in the constellation Cetus.Current position of Kalliope in Solar System
| Date | Wed, 17 September 2025 |
| Distance from Earth to Kalliope | 1.8361 AU (274,676,650km) |
| Elongation | 159° |
| Angular diameter | " |
| Magnitude | 10.8 |
Finder Chart for Kalliope
Double-click to unlock the map.
| Object name | 22 Kalliope |
| Field of view | |
| Limiting magnitude | |
| 22 Kalliope coordinates | 0.00994, -22.23372 |
| Center coordinates | 0.00994, -22.23372 |
Annual motion of Kalliope
| Date | Thu, 18 September 2025 |
| Twighlight start | 18:39 |
| Twighlight end | 03:22 |
| Twighlight duration | 9h 43m |
| Rise | 18:31 |
| Set | 04:03 |
| Elevation at transit | 30° |
| Transit time | 23:17 |
| Equatorial coordinates | RA: 23h 59m 43s", Dec: -22° 17' 39s |
| Magnitude | 11 |
| Constellation | Cetus |
The graph illustrates the annual visibility pattern of a Kalliope, 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 Kalliope 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 Kalliope 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 22 Kalliope
Coordinates & Visibility
| Right Ascension | 0.00994° |
| Declination | -22.23372° |
| Magnitude | 10.8 |
| Constellation | Cetus |
| Elevation | -33.8° |
| Azimuth | -93.6° |
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.