HR3831

Below the horizon. Never rises today

Alt: -17.96° Az: 210.22° Direction: South-South-West

HR3831 is a variable and double star of spectral class A in the constellation of Vela.

HR3831 visual magnitude is 6.17. Because of its faintness, HR3831 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 HR3831. The red arrow shows the motion of HR3831 during the next 10000 years (-1.83 arcmin in Right Ascension and -4.00 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 09h 37m 20s

Declination -48° 51’ 59”

Hour Angle 03h 06m 48s

Sidereal Time 12h 44m 09s

J2000

Right Ascension 09h 36m 25s

Declination -48° 45’ 05”

Galactic Coordinates

Galactic Longitude 273.18°

Galactic Latitude 2.52°

Finder Chart

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Finder chart for HR3831.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.17

Class

HR3831 is also a SrEuCr chemically peculiar star.

Absolute magnitude 1.87

Spectral Type A

Color Index (B-V) 0.27

Temperature 7658K

The red dot in the diagram below shows where HR3831 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR3831. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR3831 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 HR3831 double sysyem:

Main star magnitude 6.17

Secondary star magnitude 8.57

Magnitude difference 2.4

Separation 3.1 arcsec

Distance, Radial Speed, Proper Motion

HR3831 is distant 236.23 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

Distance (parsec) 72.46

Distance (light year) 236.23

Radial Speed -4 km/s

Proper Motion RA -0.011 arcsec/y

Proper Motion Dec -0.024"/y

Alternative Designations

Henry Draper Catalogue HD83368

SAO Catalogue SAO221339

Hipparcos Catalogue HIP47145

Durchmusterung Catalogue CD-48 4831

General Catalogue of Variable Stars IM Vel

Visibility from Your Location

HR3831 is currently not visible from Greenwich, UK

Set Location

Other stars in Vela