Double Star 20145+3648 Observation Details
20145+3648 Daily Motion
20145+3648 will rise before twilight begins, at 12:29, and will reach 64° elevation by the time twilight commences at 18:38. It will reach its transit at 89° by 20:47 and gradually fade away as the night ends at 03:38, maintaining an elevation of around 13°.20145+3648 will be visible until January, 12, 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.
20145+3648 Visibility Timetable on August 30
20145+3648 Rise and Set Timetable
| Time | Elevation | |
| Moon Rise, 36.6% illuminated | 10:57 | -10° |
| 20145+3648 rise | 12:29 | |
| Sunset | 17:39 | 53° |
| Civil sunset | 18:07 | 58° |
| Astrosession begin | 19:12 | 71° |
| Moon Set | 20:42 | 89° |
| 20145+3648 transit | 20:47 | 89° |
| Astrosession end | 03:05 | 18° |
| Civil sunrise | 04:10 | 8° |
| Sunrise | 04:38 | 4° |
| 20145+3648 set | 05:05 |
Track 20145+3648 Position Throughout the Night
← Sat, 30 August 2025 →
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Where is 20145+3648 right now?
20145+3648 is located in the constellation Cygnus, at right ascension 20h 14m 31s" and declination 36° 48' 22s. Although it is currently above the horizon at an altitude of 6 degrees, 20145+3648 is not visible because it is daytime.20145+3648 Star System Description
20145+3648 is 7-star Star System located in constellation Cygnus at coordinates RA: 20h 14m 31s", Dec: 36° 48' 22s.
The primary component has a magnitude of 4.96, while the secondary component has a magnitude of 6.71. They are separated by 3.5 arcminutes at a position angle of 153 degrees. The brightness difference between the two components is 1.75 magnitudes, with the primary component being approximately 5 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.
Y: Statistically different parallax for the components indicates they are non-physical.
The primary component has a magnitude of 4.96, while the secondary component has a magnitude of 6.71. They are separated by 3.5 arcminutes at a position angle of 153 degrees. The brightness difference between the two components is 1.75 magnitudes, with the primary component being approximately 5 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 20145+3648
| Property | Value |
|---|---|
| Star System Identifier | 20145+3648 |
| System Type | 7-star Star System |
| Primary Star | 29 Cyg |
| Right Ascension (RA) | 20.24219 (20h 14m 31s") |
| Declination (Dec) | 36.80614 (36° 48' 22s) |
| Magnitude (Primary) | 4.96 |
| Magnitude (Secondary) | 6.71 |
| Spectral Type (Primary/Secondary) | A2V |
| Separation (Arcseconds) | 212.0 |
| Position Angle | 153° |
| Discovery Year | 1887 |
| Last Observed | 2016 |
| Primary Proper Motion (Ra, Dec) | +070+069 |
| Secondary Proper Motion (Ra, Dec) | +001-004 |
| Number of Observations | 29 |
20145+3648 Components
| Component | Magnitude | Separation (arcseconds) | Position Angle |
| AB | 6.71 | 212.0 | 153 |
| AC | 9.99 | 225.2 | 23 |
| AE | 12.2 | 39.8 | 343 |
| AF | 12.5 | 45.2 | 38 |
| AH | 12. | 10.0 | 133 |
| BD | 10.72 | 216.5 | 120 |
Notes
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 29 Cyg
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| Object name | 20145+3648 |
| Field of view | |
| Limiting magnitude | |
| 20145+3648 coordinates | 20.24219, 36.80614 |
| Center coordinates | 20.24219, 36.80614 |
20145+3648 Passage Through Night
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Current position of 20145+3648
| Time | 13:12 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| 20145+3648 elevation | 6° |
| 20145+3648 Azimuth | -47° |
Here you can see the current position of the 20145+3648 on the map, as well as its positions for rise and set. This tool allows you to track the 20145+3648's movement throughout the night, providing you with accurate and up-to-date information.
Annual motion of 20145+3648
| Date | Sat, 30 August 2025 |
| Twighlight start | 19:07 |
| Twighlight end | 02:58 |
| Twighlight duration | 8h 51m |
| Rise | 12:25 |
| Set | 05:01 |
| Elevation at transit | 89° |
| Transit time | 20:43 |
| Equatorial coordinates | RA: 20h 14m 31s", Dec: 36° 48' 22s |
| Magnitude | 5 |
| Constellation | Cygnus |
The graph illustrates the annual visibility pattern of a 20145+3648, 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 20145+3648 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 20145+3648 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 20145+3648
Coordinates & Visibility
| Right Ascension | 20.24219° |
| Declination | 36.80614° |
| Magnitude | 4.96 |
| Constellation | Cygnus |
| Elevation | 5.9° |
| Azimuth | -47.3° |