Sky Tonight
ST
Location settings
VA, US
39°/-77.5°
GMT -4
Waning21:29 - 04:43
🔎
☰
Sky-Tonight.com / Double Stars / 15038+4739 Star System
  • Tonight
    • Brightest Objects
  • Solar System
    • Sun
    • Moon
    • Planets
    • Mercury
    • Venus
    • Mars
    • Jupiter
    • Saturn
    • Satellite Flyovers
    • ISS
  • Small Bodies
    • Asteroids
    • Comets
  • Stars
    • Brightest Stars
  • Meteor Showers
    • Active Meteor Showers
    • Major Meteor Showers
  • Solar Eclipses
    • Future Solar Eclipses
    • Past Solar Eclipses
  • Deep Sky Objects
    • Spring Nebulae
    • Messier Objects
    • Nebulae
    • Star Clusters
    • Galaxies
  • Double Stars
    • Naked-Eye
    • Binocular
    • Physical
    • Color-Contrasting
    • Triple Star Systems
    • Multiple Star Systems
  • Constellations
    • Visible Tonight
    • Seasonal
    • Ecliptic
    • All 88 Constellations
  • Maps
    • Lunar map
    • Mars map
    • Mercury map
    • Eatrh
    • Cloud Cover Map

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: Ashburn, United States
Timezone:
Latitude:
39.0469
Longitude:
-77.4903

Double Star 15038+4739 Observation Details

15038+4739

15038+4739 Daily Motion


15038+4739 will be visible until November, 4, 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.

15038+4739 Visibility Timetable on May 21

15038+4739 Rise and Set Timetable

TimeElevation
15038+4739 rise14:07
Sunset20:1947°
Civil sunset20:5152°
Astrosession begin22:1166°
15038+4739 transit00:1781°
Moon Rise, 41.7% illuminated02:3164°
Astrosession end04:0149°
Civil sunrise05:2136°
Sunrise05:5331°
15038+4739 set10:27
Moon Set14:050°

Track 15038+4739 Position Throughout the Night

← Wed, 21 May 2025 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe 15038+4739 changing position in the night sky.

15038+4739 Star System Description

15038+4739 is Double Star System located in constellation Bootes at coordinates RA: 15h 03m 47s", Dec: 47° 39' 14s.
The primary component has a magnitude of 5.20, while the secondary component has a magnitude of 6.10. They are separated by 1.5 arcseconds at a position angle of 228 degrees. The brightness difference between the two components is 0.9 magnitudes, with the primary component being approximately 2.3 times brighter than the secondary.
The primary star is yellow-white in color, and the secondary star is orange.
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 15038+4739

Property Value
Star System Identifier 15038+4739
System Type Double Star System
Primary Star 44 Boo
Right Ascension (RA) 15.06314 (15h 03m 47s")
Declination (Dec) 47.65406 (47° 39' 14s)
Magnitude (Primary) 5.20
Magnitude (Secondary) 6.10
Spectral Type (Primary/Secondary) F7V+K4V (yellow-white/orange)
Separation (Arcseconds) 1.5
Position Angle 228°
Discovery Year 1819
Last Observed 2022
Primary Proper Motion (Ra, Dec) -444+010
Secondary Proper Motion (Ra, Dec) -374+039
Number of Observations 863

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 44 Boo

Double-click to unlock the map.
Object name15038+4739
Field of view
Limiting magnitude
15038+4739 coordinates15.06314, 47.65406
Center coordinates15.06314, 47.65406

15038+4739 Passage Through Night

Double-click to unlock the map.

Current position of 15038+4739

Time09:13
Latitude39.0469
Longitude-77.4903
15038+4739 elevation6°
15038+4739 Azimuth29°
Here you can see the current position of the 15038+4739 on the map, as well as its positions for rise and set. This tool allows you to track the 15038+4739's movement throughout the night, providing you with accurate and up-to-date information.

Annual motion of 15038+4739

Time
DateWed, 21 May 2025
Twighlight start22:07
Twighlight end03:56
Twighlight duration6h 49m
Rise14:07
Set10:27
Elevation at transit81°
Transit time00:17
Equatorial coordinatesRA: 15h 03m 47s", Dec: 47° 39' 14s
Magnitude5
ConstellationBootes
The graph illustrates the annual visibility pattern of a 15038+4739, 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 15038+4739 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.