Double Star 18591+1338 Position and Visibility Tonight
Where is 18591+1338 right now?
18591+1338 is located in the constellation Aquila. At the current time, it is below the horizon and not visible from your location.
Twilight begins at 19:39 local time, and at that moment, 18591+1338 will appear at an altitude of 21 degrees toward the west.
Twilight begins at 19:39 local time, and at that moment, 18591+1338 will appear at an altitude of 21 degrees toward the west.
18591+1338 Visibility on June 14
18591+1338 is visible all night until sunrise
18591+1338 Rise and Set Timetable
| Time | Elevation | |
Moon Rise, 7% illuminated  | 01:59 | 60° |
| Moon Set | 17:31 | -4° |
| 18591+1338 rise | 17:54 | |
| Sunset | 18:28 | 6° |
| Civil sunset | 19:00 | 13° |
| Twighlight start | 19:39 | 21° |
| Astrosession begin | 20:22 | 29° |
| 18591+1338 transit | 00:36 | 66° |
| Astrosession end | 01:53 | 61° |
| Twighlight end | 02:36 | 54° |
| Civil sunrise | 03:15 | 47° |
| Sunrise | 03:48 | 41° |
| 18591+1338 set | 07:17 |
Track 18591+1338 Position Throughout the Night
← Sun, 14 June 2026 →
| Time | |
| Altitude | |
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Shift the map to change the time and observe 18591+1338 changing position in the night sky.
18591+1338 Star System Description
18591+1338 is Triple Star System located in constellation Aquila at coordinates RA: 18h 59m 05s", Dec: 13° 37' 21s.
The primary component has a magnitude of 5.32, while the secondary component has a magnitude of 9.30. They are separated by 20.1 arcseconds at a position angle of 236 degrees. The brightness difference between the two components is 3.98 magnitudes, with the primary component being approximately 39.1 times brighter than the secondary.
Below is a table with star system details from the Washington Double Star (WDS) Catalog. This catalog is a comprehensive source of information on double and multiple star systems, providing key data on the positions, magnitudes, and separations of stellar components.
The primary component has a magnitude of 5.32, while the secondary component has a magnitude of 9.30. They are separated by 20.1 arcseconds at a position angle of 236 degrees. The brightness difference between the two components is 3.98 magnitudes, with the primary component being approximately 39.1 times brighter than the secondary.
Below is a table with star system details from the Washington Double Star (WDS) Catalog. This catalog is a comprehensive source of information on double and multiple star systems, providing key data on the positions, magnitudes, and separations of stellar components.
Technical Details of Star System 18591+1338
| Property | Value |
|---|---|
| Star System Identifier | 18591+1338 |
| System Type | Triple Star System |
| Primary Star | 11 Aql |
| Right Ascension (RA) | 18.98492 (18h 59m 05s") |
| Declination (Dec) | 13.62256 (13° 37' 21s) |
| Magnitude (Primary) | 5.32 |
| Magnitude (Secondary) | 9.30 |
| Spectral Type (Primary/Secondary) | F6IV |
| Separation (Arcseconds) | 20.1 |
| Position Angle | 236° |
| Discovery Year | 1820 |
| Last Observed | 2019 |
| Primary Proper Motion (Ra, Dec) | +017-126 |
| Secondary Proper Motion (Ra, Dec) | +009-012 |
| Number of Observations | 101 |
18591+1338 Components
| Component | Magnitude | Separation (arcseconds) | Position Angle |
| AB | 9.30 | 20.1 | 236 |
| AC | 13.41 | 78.5 | 262 |
The data presented in this table is sourced from the Washington Double Star (WDS) Catalog, a comprehensive repository of double and multiple star system information maintained by the U.S. Naval Observatory. We thank the WDS team for their continued efforts in providing accurate and detailed astronomical data.
Finder Chart for 11 Aql
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| Object name | 18591+1338 |
| Field of view | |
| Limiting magnitude | |
| 18591+1338 coordinates | 18.98492, 13.62256 |
| Center coordinates | 18.98492, 13.62256 |
18591+1338 Passage Through Night
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Current position of 18591+1338
| Time | 12:19 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| 18591+1338 elevation | -39° |
| 18591+1338 Azimuth | 6° |
Here you can see the current position of the 18591+1338 on the map, as well as its positions for rise and set. This tool allows you to track the 18591+1338's movement throughout the night, providing you with accurate and up-to-date information.
Annual motion of 18591+1338
18591+1338 will be visible until December, 13, 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.
| Date | Sun, 14 June 2026 |
| Twighlight start | 20:17 |
| Twighlight end | 01:47 |
| Twighlight duration | 5h 30m |
| Rise | 17:54 |
| Set | 07:17 |
| Elevation at transit | 66° |
| Transit time | 00:36 |
| Equatorial coordinates | RA: 18h 59m 05s", Dec: 13° 37' 21s |
| Magnitude | 5 |
| Constellation | Aquila |
The graph illustrates the annual visibility pattern of a 18591+1338, 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 18591+1338 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.
You can also view detailed visibility information in a dedicated table, including exact rise, transit, and set times for each date.
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 18591+1338 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.
You can also view detailed visibility information in a dedicated table, including exact rise, transit, and set times for each date.
Astrometric & Physical Parameters of 18591+1338
Coordinates & Visibility
| Right Ascension | 18.98492° |
| Declination | 13.62256° |
| Magnitude | 5.32 |
| Constellation | Aquila |
| Elevation | -38.8° |
| Azimuth | 5.8° |