Double Star 17011-0413 Observation Details
17011-0413 Daily Motion
17011-0413 will be visible until October, 20, 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.
17011-0413 Visibility Timetable on September 03
17011-0413 Rise and Set Timetable
| Time | Elevation | |
| 17011-0413 rise | 11:32 | |
| Moon Rise, 75.5% illuminated | 14:44 | 35° |
| 17011-0413 transit | 17:18 | 48° |
| Sunset | 17:33 | 48° |
| Civil sunset | 18:01 | 47° |
| Astrosession begin | 19:05 | 42° |
| 17011-0413 set | 23:05 | |
| Moon Set | 23:57 | -11° |
| Astrosession end | 03:09 | -46° |
Track 17011-0413 Position Throughout the Night
← Wed, 3 September 2025 →
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Shift the map to change the time and observe 17011-0413 changing position in the night sky.
Where is 17011-0413 right now?
17011-0413 is located in the constellation Ophiuchus, at right ascension 17h 01m 03s" and declination -4° 13' 21s. At the current time, it is above the horizon at an altitude of 6 degrees toward the east from your location, with an apparent magnitude of 4.99.17011-0413 Star System Description
17011-0413 is Triple Star System located in constellation Ophiuchus at coordinates RA: 17h 01m 03s", Dec: -4° 13' 21s.
The primary component has a magnitude of 4.99, while the secondary component has a magnitude of 9.71. They are separated by 1.5 arcminutes at a position angle of 70 degrees. The brightness difference between the two components is 4.72 magnitudes, with the primary component being approximately 77.3 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 4.99, while the secondary component has a magnitude of 9.71. They are separated by 1.5 arcminutes at a position angle of 70 degrees. The brightness difference between the two components is 4.72 magnitudes, with the primary component being approximately 77.3 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 17011-0413
| Property | Value |
|---|---|
| Star System Identifier | 17011-0413 |
| System Type | Triple Star System |
| Primary Star | 30 Oph |
| Right Ascension (RA) | 17.01767 (17h 01m 03s") |
| Declination (Dec) | -4.22264 (-4° 13' 21s) |
| Magnitude (Primary) | 4.99 |
| Magnitude (Secondary) | 9.71 |
| Spectral Type (Primary/Secondary) | K4III |
| Separation (Arcseconds) | 91.8 |
| Position Angle | 70° |
| Discovery Year | 1887 |
| Last Observed | 2017 |
| Primary Proper Motion (Ra, Dec) | -040-077 |
| Secondary Proper Motion (Ra, Dec) | +013-032 |
| Number of Observations | 24 |
17011-0413 Components
| Component | Magnitude | Separation (arcseconds) | Position Angle |
| AB | 9.71 | 91.8 | 70 |
| AC | 8.75 | 217.1 | 88 |
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 30 Oph
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| Object name | 17011-0413 |
| Field of view | |
| Limiting magnitude | |
| 17011-0413 coordinates | 17.01767, -4.22264 |
| Center coordinates | 17.01767, -4.22264 |
17011-0413 Passage Through Night
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Current position of 17011-0413
| Time | 22:33 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| 17011-0413 elevation | 6° |
| 17011-0413 Azimuth | 100° |
Here you can see the current position of the 17011-0413 on the map, as well as its positions for rise and set. This tool allows you to track the 17011-0413's movement throughout the night, providing you with accurate and up-to-date information.
Annual motion of 17011-0413
| Date | Thu, 4 September 2025 |
| Twighlight start | 19:03 |
| Twighlight end | 03:08 |
| Twighlight duration | 8h 5m |
| Rise | 11:28 |
| Set | 23:01 |
| Elevation at transit | 48° |
| Transit time | 17:15 |
| Equatorial coordinates | RA: 17h 01m 03s", Dec: -4° 13' 21s |
| Magnitude | 5 |
| Constellation | Ophiuchus |
The graph illustrates the annual visibility pattern of a 17011-0413, 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 17011-0413 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.
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 17011-0413 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.
Astrometric & Physical Parameters of 17011-0413
Coordinates & Visibility
| Right Ascension | 17.01767° |
| Declination | -4.22264° |
| Magnitude | 4.99 |
| Constellation | Ophiuchus |
| Elevation | 6.2° |
| Azimuth | 100.1° |