HR3872

Below the horizon. Never rises today

Alt: -22.85° Az: 146.23° Direction: South-East

HR3872 is a variable and double main-sequence star of spectral class B6 in the constellation of Vela.

HR3872 visual magnitude is 6.15. Because of its faintness, HR3872 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 HR3872. The red arrow shows the motion of HR3872 during the next 10000 years (-4.00 arcmin in Right Ascension and -0.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 09h 44m 22s

Declination -51° 20’ 44”

Hour Angle 20h 19m 39s

Sidereal Time 06h 04m 01s

J2000

Right Ascension 09h 43m 27s

Declination -51° 13’ 41”

Galactic Coordinates

Galactic Longitude 275.67°

Galactic Latitude 1.41°

Finder Chart

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Finder chart for HR3872.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.15

Class Main-sequence

Absolute magnitude -1.96

Spectral Type B6V

Color Index (B-V) -0.1

Temperature 11573K

The red dot in the diagram below shows where HR3872 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR3872. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR3872 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR3872 double sysyem:

Main star magnitude 6.15

Secondary star magnitude 10.85

Magnitude difference 4.7

Separation 2.1 arcsec

Distance, Radial Speed, Proper Motion

HR3872 is distant 1,364.02 light years from the Sun and it is moving towards the Sun at the speed of 23 kilometers per second.

Distance (parsec) 418.41

Distance (light year) 1,364.02

Radial Speed -23 km/s

Proper Motion RA -0.024 arcsec/y

Proper Motion Dec -0.004"/y

Alternative Designations

Henry Draper Catalogue HD84400

SAO Catalogue SAO237260

Hipparcos Catalogue HIP47694

Durchmusterung Catalogue CD-50 4420

General Catalogue of Variable Stars IP Vel

Visibility from Your Location

HR3872 is currently not visible from Greenwich, UK

Set Location

Other stars in Vela