HR8731

Above the horizon. Rise: 18:28 | Tran: 5:37 | Set: 16:43

Alt: 4.78° Az: 22.87° Direction: South

HR8731 is a variable giant star of spectral class B4 in the constellation of Lacerta.

HR8731 visual magnitude is 5.43. Because of its faintness, HR8731 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 HR8731. The red arrow shows the motion of HR8731 during the next 10000 years (2.00 arcmin in Right Ascension and -1.50 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 22h 58m 12s

Declination +48° 49’ 14”

Hour Angle 14h 24m 07s

Sidereal Time 13h 22m 19s

J2000

Right Ascension 22h 57m 04s

Declination +48° 41’ 03”

Galactic Coordinates

Galactic Longitude 104.22°

Galactic Latitude -9.99°

Finder Chart

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Finder chart for HR8731.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.43

Class Giant

Absolute magnitude -2.21

Spectral Type B4III

Color Index (B-V) -0.09

Temperature 11407K

The red dot in the diagram below shows where HR8731 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR8731. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR8731 is distant 1,097.64 light years from the Sun and it is moving towards the Sun at the speed of 22 kilometers per second.

Distance (parsec) 336.70

Distance (light year) 1,097.64

Radial Speed -22 km/s

Proper Motion RA 0.012 arcsec/y

Proper Motion Dec -0.009"/y

Alternative Designations

Henry Draper Catalogue HD217050

SAO Catalogue SAO52526

Hipparcos Catalogue HIP113327

Durchmusterung Catalogue BD+47 3985

FK5 Catalogue 3833

General Catalogue of Variable Stars EW Lac

Visibility from Your Location

Today's HR8731 rise, transit and set times from Vlorë, Albania are the following (all times relative to the local timezone Europe/Tirane):

Azimuth: 41.2° RISE 18:28

Max altitude: 81.6° TRANSIT 5:37

Azimuth: 318.8° SET 16:43

Name:	Vlorë, Albania
Latitude:	40° 28' 0.1" N
Longitude:	19° 29' 22.9" E
Timezone:	Europe/Tirane

Set Location

Other stars in Lacerta