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
wb_twilight Civil TwilightWhat's Visible Now
All Constellations » Puppis » 


HR3151 is a variable hypergiant star in the constellation of Puppis.

HR3151 visual magnitude is 6.12. Because of its reltive faintness, HR3151 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 HR3151:

HR3151 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR3151

HR3151 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 HR3151 are provided in the following table:

08h 00m 28s
-48° 52’ 17”

The simplified sky map below shows the position of HR3151 in the sky:

Finder chart HR3151 star
Simplified finder chart for HR3151.

Visibility of HR3151 from your location

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

HR3151 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR3151

The image below is a photograph of HR3151 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 HR3151 is -0.014 arcsec per year in Right Ascension and 0.012 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3151 star
DSS2 image of HR3151. The red arrow shows the motion of HR3151 during the next 10000 years (-2.33 arcmin in Right Ascension and 2.00 arcmin in declination);

Distance of HR3151 from the Sun and relative movement

HR3151 is distant 1,509.26 light years from the Sun and it is moving far from the Sun at the speed of 28 kilometers per second.

462.96 pc
1,509.26 ly
28 km/s
-0.014 arcsec/year
0.012 arcsec/year

Spectral properties of HR3151

HR3151 belongs to spectral class A0 HR3151 is also a Si chemically peculiar star.


The red dot in the diagram below shows where HR3151 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3151. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3151