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public LocationGreenwich, United Kingdom
Sunrise: 4:42 
Transit: 12:59 
Sunset: 21:16
sunny   (Daytime)   What's Visible Now?


Below the horizon.  Rise: 21:12 | Tran: 4:49 | Set: 12:22
Altitude: -0.6°   Azimuth: 300.4°   Direction: West-North-West

HR8221 is a variable star of spectral class K5 in the constellation of Pegasus.

HR8221 visual magnitude is 6.44. Because of its faintness, HR8221 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 HR8221

Finder chart HR8221 star
Simplified finder chart for HR8221.

HR8221 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 HR8221 are provided in the following table:

21h 28m 59s
+17° 54’ 20”
Image of HR8221 star
DSS2 image of HR8221. The red arrow shows the motion of HR8221 during the next 10000 years (-2.50 arcmin in Right Ascension and -0.17 arcmin in declination);

Key facts about HR8221



The red dot in the diagram below shows where HR8221 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8221. Attribution: Richard Powell / CC BY-SA

Distance of HR8221 from the Sun and relative movement

HR8221 is distant 544.24 light years from the Sun and it is moving towards the Sun at the speed of 12 kilometers per second.

166.94 pc
544.24 ly
-12 km/s
-0.015 arcsec/year
-0.001 arcsec/year

Alternative designations of HR8221


Visibility of HR8221 from your location

Today's HR8221 rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):

Azimuth: 72.1°
Max altitude: 56.4°
Azimuth: 287.9°