Asteroid 42 Isis Observation Details
Isis Daily Motion
Isis will rise before twilight begins, at 13:24, and will reach 36° elevation by the time twilight commences at 16:40. It will reach its transit at 79° by 20:52 and gradually fade away as the night ends at 03:49, maintaining an elevation of around 5°.42 Isis will be visible until May, 19, 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.
Isis Visibility Timetable on January 10
Isis Rise and Set Timetable
| Time | Elevation | |
| Isis rise | 13:24 | |
| Sunset | 15:06 | 18° |
| Civil sunset | 15:36 | 24° |
| Astrosession begin | 16:40 | 36° |
| Isis transit | 20:52 | 79° |
| Moon Rise, 53.2% illuminated | 22:13 | 70° |
| Astrosession end | 03:49 | 5° |
| Isis set | 04:20 | |
| Moon Set | 09:26 | -26° |
Track Isis Position Throughout the Night
← Sat, 10 January 2026 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Isis changing position in the night sky.
Isis Description
Isis, designated as 42 Isis, is a main-belt asteroid, located between Mars and Jupiter in the solar system. With a diameter of 110 km, 42 Isis completes its orbit around the Sun in 3.8 years. At the moment, 42 Isis is 1.815 AU (271,520,135 km) from Earth, and it is located in the constellation Gemini.Current position of Isis in Solar System
| Date | Sat, 10 January 2026 |
| Distance from Earth to Isis | 1.815 AU (271,520,135km) |
| Elongation | 161° |
| Angular diameter | " |
| Magnitude | 11.7 |
Finder Chart for Isis
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| Object name | 42 Isis |
| Field of view | |
| Limiting magnitude | |
| 42 Isis coordinates | 6.0630262415272, 26.416905057551 |
| Center coordinates | 6.0630262415272, 26.416905057551 |
Annual motion of Isis
| Date | Sun, 11 January 2026 |
| Twighlight start | 16:41 |
| Twighlight end | 03:47 |
| Twighlight duration | 11h 6m |
| Rise | 13:19 |
| Set | 04:15 |
| Elevation at transit | 79° |
| Transit time | 20:47 |
| Equatorial coordinates | RA: 06h 02m 47s", Dec: 26° 27' 09s |
| Magnitude | 12 |
| Constellation | Gemini |
The graph illustrates the annual visibility pattern of a Isis, 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 Isis 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 Isis 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 42 Isis
Coordinates & Visibility
| Right Ascension | 6.0630262415272° |
| Declination | 26.416905057551° |
| Magnitude | 11.7 |
| Constellation | Gemini |
| Elevation | 27.9° |
| Azimuth | -76.7° |
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.