HR3129

Below the horizon. Never rises today

Alt: -58.63° Az: 253.83° Direction: West-South-West

HR3129 is a variable and multiple main-sequence star of spectral class B1 in the constellation of Puppis.

HR3129 visual magnitude is 4.41. Because of its moderate brightness, HR3129 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 HR3129. The red arrow shows the motion of HR3129 during the next 10000 years (-1.83 arcmin in Right Ascension and 1.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 07h 58m 58s

Declination -49° 18’ 53”

Hour Angle 08h 39m 40s

Sidereal Time 16h 38m 38s

J2000

Right Ascension 07h 58m 14s

Declination -49° 14’ 41”

Galactic Coordinates

Galactic Longitude 263.48°

Galactic Latitude -10.28°

Finder Chart

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Finder chart for HR3129.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.41

Class Main-sequence

Absolute magnitude -3.35

Spectral Type B1V

Color Index (B-V) -0.17

Temperature 12902K

The red dot in the diagram below shows where HR3129 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR3129. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR3129 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 HR3129 double sysyem:

Main star magnitude 4.41

Secondary star magnitude 10.31

Magnitude difference 5.9

Separation 39.2 arcsec

Distance, Radial Speed, Proper Motion

HR3129 is distant 1,164.29 light years from the Sun and it is moving far from the Sun at the speed of 19 kilometers per second.

Distance (parsec) 357.14

Distance (light year) 1,164.29

Radial Speed 19 km/s

Proper Motion RA -0.011 arcsec/y

Proper Motion Dec 0.008"/y

Alternative Designations

Henry Draper Catalogue HD65818

SAO Catalogue SAO219226

Hipparcos Catalogue HIP38957

Durchmusterung Catalogue CD-48 3349

General Catalogue of Variable Stars V Pup

Visibility from Your Location

HR3129 is currently not visible from Greenwich, UK

Set Location

Other stars in Puppis