Double Star 15416+1940 Position and Visibility Tonight
Where is 15416+1940 right now?
15416+1940 is located in the constellation Serpens. At the current time, it is above the horizon at an altitude of 48 degrees toward the southeast from your location, with an apparent magnitude of 5.35.
Twilight begins at 02:03 local time, and at that moment, 15416+1940 will appear at an altitude of 48 degrees toward the southeast.
Twilight begins at 02:03 local time, and at that moment, 15416+1940 will appear at an altitude of 48 degrees toward the southeast.
15416+1940 Visibility on May 17
15416+1940 is visible during the evening hours
15416+1940 Rise and Set Timetable
| Time | Elevation | |
Moon Rise, 1.2% illuminated  | 03:25 | 33° |
| 15416+1940 rise | 16:07 | |
| Sunset | 18:09 | 23° |
| Civil sunset | 18:40 | 29° |
| Moon Set | 18:42 | 30° |
| Twighlight start | 19:16 | 37° |
| Astrosession begin | 19:55 | 44° |
| 15416+1940 transit | 23:09 | 72° |
| Astrosession end | 02:12 | 46° |
| Twighlight end | 02:51 | 39° |
| Civil sunrise | 03:27 | 31° |
| Sunrise | 03:58 | 25° |
| 15416+1940 set | 06:11 |
Track 15416+1940 Position Throughout the Night
← Sun, 17 May 2026 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe 15416+1940 changing position in the night sky.
15416+1940 Star System Description
15416+1940 is Quadruple Star System located in constellation Serpens at coordinates RA: 15h 41m 33s", Dec: 19° 40' 13s.
The primary component has a magnitude of 5.35, while the secondary component has a magnitude of 5.22. They are separated by 0.2 arcseconds at a position angle of 72 degrees. The brightness difference between the two components is 0.13 magnitudes, with the primary component being approximately 0.9 times brighter than the secondary.
The primary star is blue-white in color, and the secondary star is white.
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 5.35, while the secondary component has a magnitude of 5.22. They are separated by 0.2 arcseconds at a position angle of 72 degrees. The brightness difference between the two components is 0.13 magnitudes, with the primary component being approximately 0.9 times brighter than the secondary.
The primary star is blue-white in color, and the secondary star is white.
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 15416+1940
| Property | Value |
|---|---|
| Star System Identifier | 15416+1940 |
| System Type | Quadruple Star System |
| Primary Star | iot Ser |
| Right Ascension (RA) | 15.6925 (15h 41m 33s") |
| Declination (Dec) | 19.6705 (19° 40' 13s) |
| Magnitude (Primary) | 5.35 |
| Magnitude (Secondary) | 5.22 |
| Spectral Type (Primary/Secondary) | B9V+A1V (blue-white/white) |
| Separation (Arcseconds) | 0.2 |
| Position Angle | 72° |
| Discovery Year | 1902 |
| Last Observed | 2022 |
| Primary Proper Motion (Ra, Dec) | -056-044 |
| Secondary Proper Motion (Ra, Dec) | |
| Number of Observations | 248 |
15416+1940 Components
| Component | Magnitude | Separation (arcseconds) | Position Angle |
| AB | 5.22 | 0.2 | 72 |
| AB,C | 13.4 | 141.7 | 351 |
| AB,D | 12.6 | 149.2 | 111 |
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 iot Ser
Double-click to unlock the map.
| Object name | 15416+1940 |
| Field of view | |
| Limiting magnitude | |
| 15416+1940 coordinates | 15.6925, 19.6705 |
| Center coordinates | 15.6925, 19.6705 |
15416+1940 Passage Through Night
Double-click to unlock the map.
Current position of 15416+1940
| Time | 02:03 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| 15416+1940 elevation | 48° |
| 15416+1940 Azimuth | 103° |
Here you can see the current position of the 15416+1940 on the map, as well as its positions for rise and set. This tool allows you to track the 15416+1940's movement throughout the night, providing you with accurate and up-to-date information.
Annual motion of 15416+1940
15416+1940 will be visible until October, 21, 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 | Mon, 18 May 2026 |
| Twighlight start | 19:51 |
| Twighlight end | 02:06 |
| Twighlight duration | 6h 14m |
| Rise | 16:03 |
| Set | 06:07 |
| Elevation at transit | 72° |
| Transit time | 23:05 |
| Equatorial coordinates | RA: 15h 41m 33s", Dec: 19° 40' 13s |
| Magnitude | 5 |
| Constellation | Serpens |
The graph illustrates the annual visibility pattern of a 15416+1940, 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 15416+1940 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 15416+1940 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 15416+1940
Coordinates & Visibility
| Right Ascension | 15.6925° |
| Declination | 19.6705° |
| Magnitude | 5.35 |
| Constellation | Serpens |
| Elevation | 48.1° |
| Azimuth | 102.5° |