HR8721

Below the horizon. Rise: 20:11 | Tran: 22:49 | Set: 1:32

Alt: -17.68° Az: 241.42° Direction: West-South-West

HR8721 is a variable main-sequence star of spectral class K4 in the constellation of Piscis Austrinus.

HR8721 visual magnitude is 6.48. Because of its faintness, HR8721 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 HR8721. The red arrow shows the motion of HR8721 during the next 1000 years (5.45 arcmin in Right Ascension and -2.70 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 22h 57m 45s

Declination -31° 25’ 58”

Hour Angle 05h 14m 44s

Sideral Time 04h 12m 29s

J2000

Right Ascension 22h 56m 24s

Declination -31° 33’ 56”

Galactic Coordinates

Galactic Longitude 15.94°

Galactic Latitude -64.61°

Finder Chart

Simplified finder chart for HR8721.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.48

Class Main-sequence

Absolute magnitude 7.07

Spectral Type K4V

Color Index (B-V) 1.1

Temperature 4515K

The red dot in the diagram below shows where HR8721 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR8721. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR8721 is distant 24.90 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.

Distance (parsec) 7.64

Distance (light year) 24.90

Radial Speed 6 km/s

Proper Motion RA 0.327 arcsec/y

Proper Motion Dec -0.162"/y

Alternative Designations

Henry Draper Catalogue HD216803

SAO Catalogue SAO214197

Hipparcos Catalogue HIP113283

Durchmusterung Catalogue CD-3217321

Gliese Catalogue Gl 879

General Catalogue of Variable Stars TW PsA

Visibility from Your Location

Today's HR8721 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 121.4° RISE 20:11

Max altitude: 7.1° TRANSIT 22:49

Azimuth: 238.6° SET 1:32

Set Location

Other stars in Piscis Austrinus