31 Virginis

Above the horizon. Rise: 14:33 | Tran: 21:04 | Set: 3:40

Alt: 12.27° Az: 265.27° Direction: West

31 Virginis is a variable and double main-sequence star of spectral class A2 in the constellation of Virgo.

31 Virginis visual magnitude is 5.59. Because of its faintness, 31 Virginis 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 31 Virginis. The red arrow shows the motion of 31 Virginis during the next 10000 years (-11.33 arcmin in Right Ascension and -2.00 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 12h 43m 14s

Declination +06° 40’ 03”

Hour Angle 05h 14m 37s

Sidereal Time 17h 57m 51s

J2000

Right Ascension 12h 41m 57s

Declination +06° 48’ 24”

Galactic Coordinates

Galactic Longitude 296.18°

Galactic Latitude 69.55°

Finder Chart

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Finder chart for 31 Virginis.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.59

Class Main-sequence

Absolute magnitude 1.22

Spectral Type A2V

Color Index (B-V) 0

Temperature 10125K

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

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

Star System Properties

31 Virginis is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the 31 Virginis double sysyem:

Main star magnitude 5.59

Secondary star magnitude 11.39

Magnitude difference 5.8

Separation 4 arcsec

Distance, Radial Speed, Proper Motion

31 Virginis is distant 243.83 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.

Distance (parsec) 74.79

Distance (light year) 243.83

Radial Speed 4 km/s

Proper Motion RA -0.068 arcsec/y

Proper Motion Dec -0.012"/y

Alternative Designations

Flamsteed designation 31 Virginis

Henry Draper Catalogue HD110423

SAO Catalogue SAO119538

Hipparcos Catalogue HIP61968

Durchmusterung Catalogue BD+07 2568

General Catalogue of Variable Stars 5867

Aitken Double Star Catalogue ADS8633

Visibility from Your Location

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

Azimuth: 83.3° RISE 14:33

Max altitude: 45.2° TRANSIT 21:04

Azimuth: 276.7° SET 3:40

Set Location

Other stars in Virgo