Rasalgethi Position and Visibility Tonight
Where is Rasalgethi right now?
Rasalgethi is located in the constellation Hercules. Although Rasalgethi is currently 72° above the horizon, it is not visible because it is daytime.
Twilight begins at 19:36 local time. At that moment, Rasalgethi will be 32° above the horizon toward the north-west.
Twilight begins at 19:36 local time. At that moment, Rasalgethi will be 32° above the horizon toward the north-west.
Rasalgethi tonight
Rasalgethi visibility on 2026-10-29
Rasalgethi Visible from sunset until before midnight
Rasalgethi rise and set timetable
| Time | Elevation | |
| Rasalgethi transit | 15:48 | 77° |
| Sunset | 18:49 | 43° |
| Civil sunset | 19:11 | 38° |
| Twilight start (−12°) | 19:36 | 32° |
| Astronomical observing session begins | 20:01 | 26° |
| Rasalgethi set | 21:49 | |
Moonrise, 89% illuminated  | 21:56 | -2° |
| Astronomical observing session ends | 05:35 | -59° |
| Rasalgethi rise | 09:44 | |
| Moonset | 10:35 | 12° |
Track Rasalgethi position throughout the night
← 29 October 2026 →
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Shift the map to change the time and observe Rasalgethi changing position in the night sky.
Finder Chart for Rasalgethi
Rasalgethi Passage Through Night
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Current position of Rasalgethi
| Time | 15:00 |
| Latitude | 1.35208 |
| Longitude | 103.82 |
| Elevation | 72° |
| Azimuth | 42° |
Here you can see the current position of Rasalgethi on the map, as well as its positions for rise and set. This tool lets you track its movement throughout the night with accurate, up-to-date information.
When Is Rasalgethi Visible Throughout the Year?
Rasalgethi will remain visible until November 1, when it moves too close to the Sun and temporarily disappears from the night sky.
| Date | Fri, 30 October 2026 |
| Astronomical observing session begins | 19:59 |
| Astronomical observing session ends | 05:32 |
| Astronomical observing duration | 10h 33m |
| Rise | 09:44 |
| Set | 21:45 |
| Elevation at transit | 77° |
| Transit time | 15:44 |
| Equatorial coordinates | RA: 17h 14m 38s", Dec: 14° 23' 25s |
| Magnitude | 3 |
| Constellation | Hercules |
The graph illustrates the annual visibility pattern of Rasalgethi, including its daily appearances and transit times. The vertical axis shows the hours of the day and the horizontal axis spans the year. The reddish area marks when the object is above the horizon, while the white line marks its daily transit.
You can also see when Rasalgethi is visible throughout the year in a table with exact rise, transit, and set times for each date.
You can also see when Rasalgethi is visible throughout the year in a table with exact rise, transit, and set times for each date.
Astrometric and Physical Parameters of Rasalgethi
Coordinates and Visibility
| Right Ascension | 17h 14m 39s |
| Declination | 14° 23′ 25″ |
| Magnitude | 2.78 |
| Constellation | Hercules |
| Elevation | 72.3° |
| Azimuth | 41.8° |
| Spectral type | M5IIvar |