HR8221

Below the horizon. Rise: 13:52 | Tran: 21:26 | Set: 5:04

Alt: -16.33° Az: 332.33° Direction: North-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.

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);

Celestial Coordinates

Apparent

Right Ascension 21h 30m 09s

Declination +18° 00’ 54”

Hour Angle 10h 08m 14s

Sideral Time 07h 38m 23s

J2000

Right Ascension 21h 28m 59s

Declination +17° 54’ 20”

Galactic Coordinates

Galactic Longitude 69.67°

Galactic Latitude -23.41°

Finder Chart

Simplified finder chart for HR8221.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.44

Class

Absolute magnitude 0.33

Spectral Type K5

Color Index (B-V) 1.39

Temperature 3967K

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

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

Distance, Radial Speed, Proper Motion

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.

Distance (parsec) 166.94

Distance (light year) 544.24

Radial Speed -12 km/s

Proper Motion RA -0.015 arcsec/y

Proper Motion Dec -0.001"/y

Alternative Designations

Henry Draper Catalogue HD204560

SAO Catalogue SAO107168

Hipparcos Catalogue HIP106064

Durchmusterung Catalogue BD+17 4592

General Catalogue of Variable Stars 13738

Visibility from Your Location

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

Azimuth: 72.0° RISE 13:52

Max altitude: 56.5° TRANSIT 21:26

Azimuth: 288.0° SET 5:04

Set Location

Other stars in Pegasus