Asteroid 40 Harmonia Observation Details
Harmonia Daily Motion
Harmonia will rise at 03:06, during twilight, and will ascend to 15° by the time twilight ends at 04:28.40 Harmonia will become visible in August, 2. After being too close to the Sun to observe, it will reappear in the night sky. Starting from August, 2, 40 Harmonia can be seen again, providing a good opportunity for observation.
Harmonia Visibility Timetable on July 22
Harmonia Rise and Set Timetable
| Time | Elevation | |
| Moon Set | 18:42 | -11° |
| Astrosession begin | 22:48 | -29° |
| Moon Rise, 8.4% illuminated | 02:30 | -6° |
| Harmonia rise | 03:06 | |
| Astrosession end | 04:28 | 15° |
| Civil sunrise | 05:50 | 30° |
| Sunrise | 06:23 | 36° |
| Harmonia transit | 10:17 | 70° |
Track Harmonia Position Throughout the Night
← Tue, 22 July 2025 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Harmonia changing position in the night sky.
Harmonia Description
Harmonia, designated as 40 Harmonia, is a main-belt asteroid, located between Mars and Jupiter in the solar system. With a diameter of 112 km, 40 Harmonia completes its orbit around the Sun in 3.4 years. At the moment, 40 Harmonia is 2.772 AU (414,715,217 km) from Earth, and it is located in the constellation Taurus.Current position of Harmonia in Solar System
| Date | Tue, 22 July 2025 |
| Distance from Earth to Harmonia | 2.7682 AU (414,116,826km) |
| Elongation | 47° |
| Angular diameter | " |
| Magnitude | 11.5 |
Finder Chart for Harmonia
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| Object name | 40 Harmonia |
| Field of view | |
| Limiting magnitude | |
| 40 Harmonia coordinates | 4.78006, 20.13431 |
| Center coordinates | 4.78006, 20.13431 |
Annual motion of Harmonia
| Date | Tue, 22 July 2025 |
| Twighlight start | 22:44 |
| Twighlight end | 04:22 |
| Twighlight duration | 6h 38m |
| Rise | 03:07 |
| Set | 17:29 |
| Elevation at transit | 70° |
| Transit time | 10:18 |
| Equatorial coordinates | RA: 04h 48m 46s", Dec: 20° 11' 55s |
| Magnitude | 12 |
| Constellation | Taurus |
The graph illustrates the annual visibility pattern of a Harmonia, 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 Harmonia 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 Harmonia 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.