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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: Columbus, United States
Timezone:
Latitude:
39.9625
Longitude:
-83.0061

Double Star 17591-3015 Observation Details

17591-3015

17591-3015 Daily Motion

17591-3015 will be visible throughout the entire night. It will rise at 21:10, just before twilight begins, and will be at 9° when twilight starts at 22:19. It will reach its transit at 20° at 01:12, and will fade away as twilight ends at 04:50, being at 3° elevation.
17591-3015 will be visible until January, 1, 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.

17591-3015 Visibility Timetable on June 26

17591-3015 Rise and Set Timetable

TimeElevation
Moon Rise, 0.2% illuminated05:46-4°
17591-3015 rise21:10
Civil sunset21:374°
Moon Set21:576°
Astrosession begin23:0714°
17591-3015 transit01:1220°
Astrosession end04:029°
17591-3015 set05:15

Track 17591-3015 Position Throughout the Night

← Thu, 26 June 2025 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe 17591-3015 changing position in the night sky.

17591-3015 Star System Description

17591-3015 is Triple Star System located in constellation Sagittarius at coordinates RA: 17h 59m 05s", Dec: -30° 15' 10s.
The primary component has a magnitude of 5.39, while the secondary component has a magnitude of 6.96. They are separated by 6.2 arcseconds at a position angle of 107 degrees. The brightness difference between the two components is 1.57 magnitudes, with the primary component being approximately 4.2 times brighter than the secondary.
The primary star is red in color, and the secondary star is yellow.
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 17591-3015

Property Value
Star System Identifier 17591-3015
System Type Triple Star System
Primary Star Sgr-17591-3015
Right Ascension (RA) 17.98478 (17h 59m 05s")
Declination (Dec) -30.253 (-30° 15' 10s)
Magnitude (Primary) 5.39
Magnitude (Secondary) 6.96
Spectral Type (Primary/Secondary) M1Ib+G8II (red/yellow)
Separation (Arcseconds) 6.2
Position Angle 107°
Discovery Year 1836
Last Observed 2016
Primary Proper Motion (Ra, Dec) +001-007
Secondary Proper Motion (Ra, Dec) +003-008
Number of Observations 46

17591-3015 Components

ComponentMagnitudeSeparation (arcseconds)Position Angle
AB6.966.2107
AC13.230.0240

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

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Object name17591-3015
Field of view
Limiting magnitude
17591-3015 coordinates17.98478, -30.253
Center coordinates17.98478, -30.253

17591-3015 Passage Through Night

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Current position of 17591-3015

Time19:42
Latitude39.9625
Longitude-83.0061
17591-3015 elevation-14°
17591-3015 Azimuth-118°
Here you can see the current position of the 17591-3015 on the map, as well as its positions for rise and set. This tool allows you to track the 17591-3015's movement throughout the night, providing you with accurate and up-to-date information.

Annual motion of 17591-3015

Time
DateThu, 26 June 2025
Twighlight start23:03
Twighlight end03:56
Twighlight duration5h 53m
Rise21:06
Set05:11
Elevation at transit20°
Transit time01:08
Equatorial coordinatesRA: 17h 59m 05s", Dec: -30° 15' 10s
Magnitude5
ConstellationSagittarius
The graph illustrates the annual visibility pattern of a 17591-3015, 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 17591-3015 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.