21 Arietis
21 Arietis is a double main-sequence star of spectral class F6 in the constellation of Aries.
21 Arietis visual magnitude is 5.58. Because of its faintness, 21 Arietis 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
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Finder chart for 21 Arietis.
Magnitude, Color, Spectral Class

The red dot in the diagram below shows where 21 Arietis is situated in the Hertzsprung–Russell diagram.

Star System Properties
21 Arietis 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 21 Arietis double sysyem:
Distance, Radial Speed, Proper Motion
21 Arietis is distant 156.96 light years from the Sun and it is moving towards the Sun at the speed of 44 kilometers per second.
Alternative Designations
Visibility from Your Location
Today's 21 Arietis rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):