Observation details: asteroid Aspasia
Daily motion of Aspasia
409 Aspasia will remain visible until December 20, when it moves too close to the Sun and temporarily disappears from the night sky.
Aspasia visibility on 2026-08-18
409 Aspasia Visible from sunset until early morning
Aspasia rise and set timetable
| Time | Elevation | |
Moonrise, 21% illuminated  | 09:49 | -53° |
| Aspasia rise | 14:34 | |
| Sunset | 17:55 | 35° |
| Civil sunset | 18:24 | 38° |
| Twilight start | 18:57 | 41° |
| Astronomical observing session begins | 19:32 | 43° |
| Aspasia transit | 20:06 | 44° |
| Moonset | 20:26 | 43° |
| Aspasia set | 01:37 | |
| Astronomical observing session ends | 02:51 | -15° |
Track Aspasia Position Throughout the Night
← 18 August 2026 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Aspasia changing position in the night sky.
Aspasia Description
This asteroid is designated 409 Aspasia, main-belt asteroid Its diameter is approximately 172 km. 409 Aspasia completes an orbit around the Sun in 4.1 years. It is currently 1.652 AU (247,086,315 km) from Earth, and is located in the constellation Scutum.Current position in the Solar System: Aspasia
| Date | Tue, 18 August 2026 |
| Distance from Earth | 1.6555 AU (247,659,275km) |
| Elongation | 134° |
| Angular diameter | " |
| Magnitude | 11.5 |
Finder Chart for Aspasia
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| Object name | Aspasia |
| Field of view | |
| Limiting magnitude | |
| Aspasia coordinates | 18.74784, -8.93281 |
| Center coordinates | 18.74784, -8.93281 |
Annual motion of Aspasia
| Date | Tue, 18 August 2026 |
| Twilight start | 19:28 |
| Twilight end | 02:44 |
| Twilight duration | 7h 17m |
| Rise | 14:30 |
| Set | 01:33 |
| Elevation at transit | 44° |
| Transit time | 20:02 |
| Equatorial coordinates | RA: 18h 44m 41s", Dec: -8° 58' 09s |
| Magnitude | 12 |
| Constellation | Scutum |
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 409 Aspasia
Coordinates and Visibility
| Right Ascension | 18.74784° |
| Declination | -8.93281° |
| Magnitude | 11.5 |
| Constellation | Scutum |
| Elevation | -60.5° |
| Azimuth | 17.4° |
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.