η Sagittarii (eta Sagittarii)
η Sagittarii is a variable and multiple giant star of spectral class M3 in the constellation of Sagittarius.
η Sagittarii visual magnitude is 3.11. Because of its moderate brightness, η 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
Magnitude, Color, Spectral Class
The red dot in the diagram below shows where η Sagittarii is situated in the Hertzsprung–Russell diagram.
Star System Properties
η Sagittarii is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the η Sagittarii double sysyem:
Distance, Radial Speed, Proper Motion
η Sagittarii is distant 149.06 light years from the Sun and it is moving far from the Sun at the speed of 1 kilometers per second.
Alternative Designations
Visibility from Your Location
Today's η Sagittarii (eta Sagittarii) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):