31 Vulpeculae

Above the horizon. Rise: 20:59 | Tran: 5:41 | Set: 14:19

Alt: 65.42° Az: 169.15° Direction: South

31 Vulpeculae is a variable giant star of spectral class G7 in the constellation of Vulpecula.

31 Vulpeculae visual magnitude is 4.59. Because of its moderate brightness, 31 Vulpeculae is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

DSS2 image of 31 Vulpeculae. The red arrow shows the motion of 31 Vulpeculae during the next 10000 years (-11.17 arcmin in Right Ascension and -10.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 20h 53m 13s

Declination +27° 11’ 37”

Hour Angle 23h 39m 47s

Sidereal Time 20h 33m 00s

J2000

Right Ascension 20h 52m 07s

Declination +27° 05’ 48”

Galactic Coordinates

Galactic Longitude 71.31°

Galactic Latitude -10.98°

Finder Chart

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Finder chart for 31 Vulpeculae.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.59

Class Giant

Absolute magnitude 0.48

Spectral Type G7III

Color Index (B-V) 0.83

Temperature 5192K

The red dot in the diagram below shows where 31 Vulpeculae is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 31 Vulpeculae. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

31 Vulpeculae is distant 216.47 light years from the Sun and it is moving far from the Sun at the speed of 1 kilometers per second.

Distance (parsec) 66.40

Distance (light year) 216.47

Radial Speed 1 km/s

Proper Motion RA -0.067 arcsec/y

Proper Motion Dec -0.065"/y

Alternative Designations

Flamsteed designation 31 Vulpeculae

Henry Draper Catalogue HD198809

SAO Catalogue SAO89228

Hipparcos Catalogue HIP103004

Durchmusterung Catalogue BD+26 4017

Gliese Catalogue NN 4168

General Catalogue of Variable Stars 13373

Visibility from Your Location

Today's 31 Vulpeculae rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 62.8° RISE 20:59

Max altitude: 65.7° TRANSIT 5:41

Azimuth: 297.2° SET 14:19

Set Location

Other stars in Vulpecula