Observation details: asteroid Thalia
Daily motion of Thalia
23 Thalia will remain visible until January 31, when it moves too close to the Sun and temporarily disappears from the night sky.
Thalia visibility on 2026-08-29
23 Thalia Visible from early morning until sunrise
Thalia rise and set timetable
| Time | Elevation | |
Moonrise, 99.3% illuminated  | 17:59 | -16° |
| Astronomical observing session begins | 19:14 | -1° |
| Thalia rise | 19:21 | |
| Thalia transit | 00:25 | 35° |
| Astronomical observing session ends | 03:03 | 24° |
| Twilight end | 03:37 | 19° |
| Civil sunrise | 04:09 | 14° |
| Sunrise | 04:37 | 9° |
| Thalia set | 05:29 | |
| Moonset | 06:11 | -8° |
Track Thalia Position Throughout the Night
← 29 August 2026 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Thalia changing position in the night sky.
Thalia Description
This asteroid is designated 23 Thalia, main-belt asteroid Its diameter is approximately 108 km. 23 Thalia completes an orbit around the Sun in 4.3 years. It is currently 2.089 AU (312,571,287 km) from Earth, and is located in the constellation Aquarius.Current position in the Solar System: Thalia
| Date | Sat, 29 August 2026 |
| Distance from Earth | 2.08703 AU (312,215,244km) |
| Elongation | 159° |
| Angular diameter | " |
| Magnitude | 11.6 |
Finder Chart for Thalia
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| Object name | Thalia |
| Field of view | |
| Limiting magnitude | |
| Thalia coordinates | 23.81131, -17.28122 |
| Center coordinates | 23.81131, -17.28122 |
Annual motion of Thalia
| Date | Sat, 29 August 2026 |
| Twilight start | 19:09 |
| Twilight end | 02:57 |
| Twilight duration | 8h 48m |
| Rise | 19:21 |
| Set | 05:29 |
| Elevation at transit | 35° |
| Transit time | 00:25 |
| Equatorial coordinates | RA: 23h 47m 55s", Dec: -17° 23' 04s |
| Magnitude | 12 |
| Constellation | Aquarius |
The graph summarizes the object’s annual visibility, daily observing windows and transit times.
The vertical axis shows time of day and the horizontal axis shows the days of the year.
The shaded area marks when the object is above the horizon; the white line marks daily transit. You can also view the detailed annual visibility table.
The vertical axis shows time of day and the horizontal axis shows the days of the year.
The shaded area marks when the object is above the horizon; the white line marks daily transit. You can also view the detailed annual visibility table.
Astrometric and Physical Parameters of 23 Thalia
Coordinates and Visibility
| Right Ascension | 23.81131° |
| Declination | -17.28122° |
| Magnitude | 11.6 |
| Constellation | Aquarius |
| Elevation | -12.1° |
| Azimuth | 257.4° |
Acknowledgments
Orbital and small-body data are provided by NASA Jet Propulsion Laboratory (JPL) Small-Body Database (SBDB) and Center for Near-Earth Object Studies (CNEOS). These resources support accurate positions, orbits and physical characteristics.