Asteroid 20 Massalia Observation Details
Massalia Daily Motion
Tonight, observing Massalia may prove challenging owing to its low elevation. It will reach its transit at by 08:02 and set before sunset at 14:37. Rising near twilight's end at 01:25, it will fade away by 03:43, peaking at just 27° above the horizon.20 Massalia will be visible until July, 9, 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.
Massalia Visibility Timetable on October 08
Massalia Rise and Set Timetable
| Time | Elevation | |
| Massalia transit | 08:02 | 64° |
| Massalia set | 14:37 | |
| Moon Rise, 98.7% illuminated | 16:55 | -25° |
| Astrosession begin | 18:07 | -34° |
| Massalia rise | 01:25 | |
| Astrosession end | 03:43 | 27° |
| Civil sunrise | 04:43 | 39° |
| Sunrise | 05:11 | 44° |
| Moon Set | 07:05 | 61° |
Track Massalia Position Throughout the Night
← Wed, 8 October 2025 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Massalia changing position in the night sky.
Massalia Description
Massalia, designated as 20 Massalia, is a main-belt asteroid, located between Mars and Jupiter in the solar system. With a diameter of 136 km, 20 Massalia completes its orbit around the Sun in 3.7 years. At the moment, 20 Massalia is 2.645 AU (395,686,368 km) from Earth, and it is located in the constellation Leo.Current position of Massalia in Solar System
| Date | Wed, 8 October 2025 |
| Distance from Earth to Massalia | 2.644 AU (395,536,770km) |
| Elongation | 47° |
| Angular diameter | " |
| Magnitude | 11.14 |
Finder Chart for Massalia
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| Object name | 20 Massalia |
| Field of view | |
| Limiting magnitude | |
| 20 Massalia coordinates | 10.004588351647, 11.621727704344 |
| Center coordinates | 10.004588351647, 11.621727704344 |
Annual motion of Massalia
| Date | Wed, 8 October 2025 |
| Twighlight start | 18:03 |
| Twighlight end | 03:36 |
| Twighlight duration | 10h 33m |
| Rise | 01:25 |
| Set | 14:34 |
| Elevation at transit | 64° |
| Transit time | 07:59 |
| Equatorial coordinates | RA: 10h 02m 12s", Dec: 11° 26' 47s |
| Magnitude | 11 |
| Constellation | Leo |
The graph illustrates the annual visibility pattern of a Massalia, 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 Massalia 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 Massalia 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 20 Massalia
Coordinates & Visibility
| Right Ascension | 10.004588351647° |
| Declination | 11.621727704344° |
| Magnitude | 11.14 |
| Constellation | Leo |
| Elevation | 31° |
| Azimuth | 99.4° |
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.