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public LocationGreenwich, UK
Sunrise: 5:07 
Transit: 13:06 
Sunset: 21:04
wb_twilight   (Astronomical Twilight)   What's Visible Now?
All Constellations » Puppis » 


Below the horizon.  Never rises today
Alt: -74.43°   Az: 91.57°   Direction: East

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.

HR3129 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere.

Image of HR3129 star
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


07h 58m 56s
-49° 18’ 45”
13h 37m 12s
21h 36m 09s


07h 58m 14s
-49° 14’ 41”

Galactic Coordinates


Finder Chart

Finder chart HR3129 star
Simplified finder chart for HR3129.

Magnitude, Color, Spectral Class



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

HR 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:

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.

357.14 pc
1,164.29 ly
19 km/s
-0.011 arcsec/y
0.008 "/y

Alternative Designations


Visibility from Your Location

HR3129 is currently not visible from Greenwich, UK