Observation details: comet 161P/Hartley-IRAS
Daily motion of 161P/Hartley-IRAS
From your location, 161P/Hartley-IRAS is Visible from sunset until before midnight. Its current altitude, direction, rise and set times, and finder chart are shown below.90001107 161P/Hartley-IRAS will remain visible until November 29, when it moves too close to the Sun and temporarily disappears from the night sky.
161P/Hartley-IRAS visibility on 2026-11-07
161P/Hartley-IRAS Visible from sunset until before midnight
161P/Hartley-IRAS rise and set timetable
| Time | Elevation | |
Moonrise, 5.4% illuminated  | 04:02 | -72° |
| Moonset | 16:25 | 74° |
| 161P/Hartley-IRAS transit | 16:33 | 74° |
| Sunset | 17:46 | 66° |
| Civil sunset | 18:08 | 62° |
| Twilight start (−12°) | 18:33 | 56° |
| Astronomical observing session begins | 18:58 | 51° |
| 161P/Hartley-IRAS set | 22:32 | |
| Astronomical observing session ends | 04:28 | -74° |
| 161P/Hartley-IRAS rise | 10:28 |
Track 161P/Hartley-IRAS position throughout the night
← 7 November 2026 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe 161P/Hartley-IRAS changing position in the night sky.
161P/Hartley-IRAS Description
This comet is designated 90001107 161P/Hartley-IRAS, Jupiter-family comet. 161P/Hartley-IRAS completes an orbit around the Sun in 21.5 years. It is currently 1.049 AU (156,917,695 km) from Earth, and is located in the constellation Aquila.Current position in the Solar System: 161P/Hartley-IRAS
| Date | Sat, 7 November 2026 |
| Distance from Earth | 1.05703 AU (158,129,437km) |
| Elongation | 78° |
| Angular diameter | " |
| Magnitude | 15.8 |
Finder Chart for 161P/Hartley-IRAS
Annual motion of 161P/Hartley-IRAS
| Date | Sun, 8 November 2026 |
| Twilight start | 18:55 |
| Twilight end | 04:23 |
| Twilight duration | 9h 28m |
| Rise | 10:29 |
| Set | 22:27 |
| Elevation at transit | 74° |
| Transit time | 16:28 |
| Equatorial coordinates | RA: 19h 40m 13s", Dec: 15° 40' 32s |
| Magnitude | 16 |
| Constellation | Aquila |
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 90001107 161P/Hartley-IRAS
Coordinates and Visibility
| Right Ascension | 19h 42m 02s |
| Declination | 15° 26′ 50″ |
| Magnitude | 15.8 |
| Constellation | Aquila |
| Elevation | -31.8° |
| Azimuth | 71.7° |
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.