21 Sagittarii
21 Sagittarii is a double bright giant star of spectral class K2 in the constellation of Sagittarius.
21 Sagittarii visual magnitude is 4.81. Because of its moderate brightness, 21 Sagittarii is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.
Celestial Coordinates
Apparent
J2000
Galactic Coordinates
Finder Chart
Simplified finder chart for 21 Sagittarii.
Magnitude, Color, Spectral Class
The red dot in the diagram below shows where 21 Sagittarii is situated in the Hertzsprung–Russell diagram.
Star System Properties
21 Sagittarii is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the 21 Sagittarii double sysyem:
Distance, Radial Speed, Proper Motion
21 Sagittarii is distant 597.07 light years from the Sun and it is moving towards the Sun at the speed of 12 kilometers per second.
Alternative Designations
Visibility from Your Location
Today's 21 Sagittarii rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):