We use cookies to deliver essential features and to measure their performance. Learn more.
Home
Search Objects
Major Solar System Objects
Comets
Asteroids
Spacecrafts
Star Maps
Orbits
public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 6:38 
Transit: 12:54 
Sunset: 19:10
sleep   (Nighttime)  
What's Visible Now • Tonight Timeline
Search  close
All Constellations » Sagittarius » 

Kaus Borealis - λ Sagittarii (lambda Sagittarii)

Below the horizon.  Rise: 16:12 | Tran: 19:44 | Set: 23:16
Alt: -0.06°   Az: 226.57°   Direction: South-West

Kaus Borealis, also designated as λ Sagittarii (lambda Sagittarii), is a giant star of spectral class K1 in the constellation of Sagittarius.

Kaus Borealis visual magnitude is 2.81. Because of its brightness, Kaus Borealis is clearly visible to the naked eye when observed from locations with dark skies, and should be also quite easily visible from light polluted areas.

Image of Kaus Borealis - λ Sagittarii (lambda Sagittarii) star
DSS2 image of Kaus Borealis. The red arrow shows the motion of Kaus Borealis during the next 1000 years (-0.73 arcmin in Right Ascension and -3.08 arcmin in declination);

Celestial Coordinates

Apparent

18h 29m 29s
-25° 24’ 16”
03h 34m 01s
22h 03m 31s

J2000

18h 27m 58s
-25° 25’ 18”

Galactic Coordinates

7.66°
-6.52°

Finder Chart

Finder chart Kaus Borealis - λ Sagittarii (lambda Sagittarii) star
Simplified finder chart for Kaus Borealis - λ Sagittarii (lambda Sagittarii).

Magnitude, Color, Spectral Class

2.81
Giant

0.94
K1III
4649K

The red dot in the diagram below shows where Kaus Borealis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of Kaus Borealis. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

Kaus Borealis is distant 77.25 light years from the Sun and it is moving towards the Sun at the speed of 43 kilometers per second.

23.70
77.25
-43 km/s
-0.044 arcsec/y
-0.185"/y

Alternative Designations

Kaus Borealis
λ Sagittarii
(lambda Sagittarii)
22 Sagittarii
SAO186841
SAO186841
Gl 713.1

Visibility from Your Location

Today's Kaus Borealis - λ Sagittarii (lambda Sagittarii) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 115.4°
Max altitude: 13.1°
Azimuth: 244.6°