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Sky-Tonight.com / Double Stars / 18208+7120 Star System
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Observation Settings

Or select it on the map:
This Earth map fragment is intended to illustrate celestial motion across the sky, emphasizing both bearing and elevational perspectives. The map's center point corresponds to the transit, showcasing celestial objects at their highest point, while elevation gradually decreases towards the map edges. This dynamic representation offers insights into the changing positions of celestial bodies with a focus on their bearing and elevational trajectories.
Your location: Santa Clara, United States
Timezone:
Latitude:
37.3541
Longitude:
-121.955

Double Star 18208+7120 Position and Visibility Tonight

18208+7120

Where is 18208+7120 right now?

18208+7120 is located in the constellation Draco. Although it is currently above the horizon at an altitude of 43 degrees, 18208+7120 is not visible because it is daytime.
Twilight begins at 03:30 local time, and at that moment, 18208+7120 will appear at an altitude of 43 degrees toward the northeast.

18208+7120 Visibility on June 27

18208+7120 is Not visible tonight

18208+7120 Rise and Set Timetable

TimeElevation
18208+7120 is always above the horizon
Moon Rise, 91.9% illuminated 16:1431°
Sunset18:3142°
Civil sunset19:0344°
Twighlight start19:4247°
Astrosession begin20:2650°
18208+7120 is always above the horizon
18208+7120 transit23:0656°
Moon Set01:3651°
Astrosession end01:5550°
Twighlight end02:3947°
Civil sunrise03:1844°
Sunrise03:5041°

Track 18208+7120 Position Throughout the Night

← Sat, 27 June 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe 18208+7120 changing position in the night sky.

18208+7120 Star System Description

18208+7120 is Triple Star System located in constellation Draco at coordinates RA: 18h 20m 45s", Dec: 71° 20' 15s.
The primary component has a magnitude of 4.46, while the secondary component has a magnitude of 5.90. They are separated by 0.6 arcseconds at a position angle of 69 degrees. The brightness difference between the two components is 1.44 magnitudes, with the primary component being approximately 3.8 times brighter than the secondary.
The primary and secondary stars are both blue-white in color
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 18208+7120

Property Value
Star System Identifier 18208+7120
System Type Triple Star System
Primary Star phi Dra
Right Ascension (RA) 18.34594 (18h 20m 45s")
Declination (Dec) 71.33772 (71° 20' 15s)
Magnitude (Primary) 4.46
Magnitude (Secondary) 5.90
Spectral Type (Primary/Secondary) B7V+B9V (blue-white/blue-white)
Separation (Arcseconds) 0.6
Position Angle 69°
Discovery Year 1843
Last Observed 2021
Primary Proper Motion (Ra, Dec) -005+036
Secondary Proper Motion (Ra, Dec)
Number of Observations 97

18208+7120 Components

ComponentMagnitudeSeparation (arcseconds)Position Angle
AB5.900.669
AB,C12.770.8115

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 phi Dra

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Object name18208+7120
Field of view
Limiting magnitude
18208+7120 coordinates18.34594, 71.33772
Center coordinates18.34594, 71.33772

18208+7120 Passage Through Night

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Current position of 18208+7120

Time03:30
Latitude37.3541
Longitude-121.955
18208+7120 elevation43°
18208+7120 Azimuth23°
Here you can see the current position of the 18208+7120 on the map, as well as its positions for rise and set. This tool allows you to track the 18208+7120's movement throughout the night, providing you with accurate and up-to-date information.

Annual motion of 18208+7120


18208+7120 will be visible throughout the entire year. However, it will change its position significantly, moving 37 degrees over time. You can find the best times to observe 18208+7120, when it reaches its highest elevation, in the annual motion section.
Time
DateSun, 28 June 2026
Twighlight start20:21
Twighlight end01:50
Twighlight duration5h 29m
Rise18208+7120 is always up
Set18208+7120 is always up
Elevation at transit56°
Transit time23:02
Equatorial coordinatesRA: 18h 20m 45s", Dec: 71° 20' 15s
Magnitude4
ConstellationDraco
The graph illustrates the annual visibility pattern of a 18208+7120, 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 18208+7120 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 18208+7120

Coordinates & Visibility

Right Ascension18.34594°
Declination71.33772°
Magnitude4.46
ConstellationDraco
Elevation42.7°
Azimuth23.4°