Your Guide to the Solar System and the Night Sky
Donate now! You'll help cover server costs, enhance the site and keep it ad-free.
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:46  
clear_day Transit: 12:57  
SunsetSet: 21:08 south
wb_twilight Astronomical TwilightWhat's Visible Now
All Constellations » Puppis » 


Altitude: -62.5°   Azimuth: 266.3°   Direction: West

HR3146 is a supergiant star in the constellation of Puppis.

HR3146 visual magnitude is 6.61. Because of its reltive faintness, HR3146 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 HR3146:


HR3146 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -62.5°
Azimuth: 266.3°
Direction: West

Celestial coordinates and finder chart of HR3146

HR3146 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 HR3146 are provided in the following table:

08h 00m 19s
-45° 27’ 24”

The simplified sky map below shows the position of HR3146 in the sky:

Finder chart HR3146 star
Simplified finder chart for HR3146.

Visibility of HR3146 from your location

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

HR3146 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR3146

The image below is a photograph of HR3146 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 HR3146 is 0.008 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR3146 star
DSS2 image of HR3146. The red arrow shows the motion of HR3146 during the next 100000 years (13.33 arcmin in Right Ascension and 1.67 arcmin in declination);

Distance of HR3146 from the Sun and relative movement

HR3146 is distant 5,433.33 light years from the Sun and it is moving far from the Sun at the speed of 27 kilometers per second.

1,666.67 pc
5,433.33 ly
27 km/s
0.008 arcsec/year
0.001 arcsec/year

Spectral properties of HR3146

HR3146 belongs to spectral class K1 and has a luminosity class of I corresponding to a supergiant star.


The red dot in the diagram below shows where HR3146 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3146. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3146