Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:59  
clear_day Transit: 12:48  
SunsetSet: 18:36 south
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All Constellations » Puppis » 


Altitude: -11.0°   Azimuth: 186.1°   Direction: South

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

HR3129 visual magnitude is 4.41. Because of its moderate brightness, HR3129 should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about HR3129:


HR3129 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -11.0°
Azimuth: 186.1°
Direction: South

Celestial coordinates and finder chart of HR3129

HR3129 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR3129 are provided in the following table:

07h 58m 14s
-49° 14’ 41”

The simplified sky map below shows the position of HR3129 in the sky:

Finder chart HR3129 star
Simplified finder chart for HR3129.

Visibility of HR3129 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR3129 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR3129

The image below is a photograph of HR3129 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of HR3129 is -0.011 arcsec per year in Right Ascension and 0.008 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

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);

Distance of HR3129 from the Sun and relative movement

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/year
0.008 arcsec/year

Spectral properties of HR3129

HR3129 belongs to spectral class B1 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR3129 is situated in the Hertzsprungā€“Russell diagram.

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

HR3129 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

Alternative designations of HR3129