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A Complete Guide to the Solar System and the Night Sky
public LocationGreenwich, United Kingdom
TimezoneEurope/London
Sunrise: 5:28 
Transit: 12:55 
Sunset: 20:24
wb_twilight   (Astronomical Twilight)   What's Visible Now?
All Constellations » Corona Australis » 

HR6921

Altitude: -2.0°   Azimuth: 164.5°   Direction: South-South-East

HR6921 is a star in the constellation of Corona Australis.

HR6921 visual magnitude is 6.63. Because of its reltive faintness, HR6921 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR6921 is -0.004 arcsec per year in Right Ascension and -0.007 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR6921 star
DSS2 image of HR6921. The red arrow shows the motion of HR6921 during the next 100000 years (-6.67 arcmin in Right Ascension and -11.67 arcmin in declination);

Key facts about HR6921

6.63

HR6921 is below the horizon from Greenwich, United Kingdom.

Altitude: -2.0°
Azimuth: 164.5°
Direction: South-South-East

Celestial coordinates and finder chart of HR6921

HR6921 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR6921 are provided in the following table:

18h 29m 16s
-38° 51’ 03”
355.54°
-12.66°
Corona Australis

The simplified sky map below shows the position of HR6921 in the sky:

Finder chart HR6921 star
Simplified finder chart for HR6921.

Visibility of HR6921 from your location

Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR6921 is currently not visible from Greenwich, United Kingdom

Distance of HR6921 from the Sun and relative movement

HR6921 is distant 1,654.82 light years from the Sun and it is moving towards the Sun at the speed of 28 kilometers per second.

507.61 pc
1,654.82 ly
-28 km/s
-0.004 arcsec/year
-0.007 arcsec/year

Spectral properties of HR6921

HR6921 belongs to spectral class B8

-1.90
B8
10382K

The red dot in the diagram below shows where HR6921 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6921. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6921

SAO210213
SAO210213