We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
Help keep this site free and ads-free: donate now!
public LocationGreenwich, UK
Sunrise: 4:42 
Transit: 13:00 
Sunset: 21:18
sunny   (Daytime)   What's Visible Now?


Below the horizon.  Rise: 21:27 | Tran: 4:31 | Set: 11:32
Altitude: -16.8°   Azimuth: 42.9°   Direction: North-East

HR8231 is a main-sequence star of spectral class B9 in the constellation of Pegasus.

HR8231 visual magnitude is 6.08. Because of its faintness, HR8231 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 and finder chart of HR8231

Finder chart HR8231 star
Simplified finder chart for HR8231.

HR8231 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR8231 are provided in the following table:

21h 31m 09s
+12° 08’ 14”
Image of HR8231 star
DSS2 image of HR8231. The red arrow shows the motion of HR8231 during the next 10000 years (3.17 arcmin in Right Ascension and -2.33 arcmin in declination);

Key facts about HR8231


and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR8231 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8231. Attribution: Richard Powell / CC BY-SA

Distance of HR8231 from the Sun and relative movement

HR8231 is distant 416.88 light years from the Sun and it is moving towards the Sun at the speed of 10 kilometers per second.

127.88 pc
416.88 ly
-10 km/s
0.019 arcsec/year
-0.014 arcsec/year

Alternative designations of HR8231


Visibility of HR8231 from your location

Today's HR8231 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 77.9°
Max altitude: 50.7°
Azimuth: 282.1°