HR91
HR91 is a variable and double sub-giant star of spectral class B5 in the constellation of Cassiopeia.
HR91 visual magnitude is 5.57. Because of its faintness, HR91 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.
Celestial Coordinates
Apparent
J2000
Galactic Coordinates
Finder Chart
Simplified finder chart for HR91.
Magnitude, Color, Spectral Class
The red dot in the diagram below shows where HR91 is situated in the Hertzsprung–Russell diagram.
Star System Properties
HR91 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR91 double sysyem:
Distance, Radial Speed, Proper Motion
HR91 is distant 1,369.75 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.
Alternative Designations
Visibility from Your Location
HR91 is circumpolar and transits at 01:15 UTC (altitude: 89.3°)