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: 4:52  
clear_day Transit: 12:55  
SunsetSet: 20:59 south
sunny DaytimeWhat's Visible Now
All Constellations » Puppis » 


HR3143 is a sub-giant star in the constellation of Puppis.

HR3143 visual magnitude is 6.34. Because of its reltive faintness, HR3143 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR3143:

HR3143 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR3143

HR3143 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 HR3143 are provided in the following table:

07h 59m 13s
-49° 58’ 24”

The simplified sky map below shows the position of HR3143 in the sky:

Finder chart HR3143 star
Simplified finder chart for HR3143.

Visibility of HR3143 from your location

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

HR3143 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR3143

The image below is a photograph of HR3143 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 HR3143 is -0.008 arcsec per year in Right Ascension and 0.013 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3143 star
DSS2 image of HR3143. The red arrow shows the motion of HR3143 during the next 10000 years (-1.33 arcmin in Right Ascension and 2.17 arcmin in declination);

Distance of HR3143 from the Sun and relative movement

HR3143 is distant 838.05 light years from the Sun and it is moving far from the Sun at the speed of 23 kilometers per second.

257.07 pc
838.05 ly
23 km/s
-0.008 arcsec/year
0.013 arcsec/year

Spectral properties of HR3143

HR3143 belongs to spectral class B2 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where HR3143 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3143. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3143