We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Donate now and help us to keep this site free and ad-free!
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:37  
clear_day Transit: 11:46  
SunsetSet: 15:55 south
sunny DaytimeWhat's Visible Now?
All Constellations » Puppis » 


Altitude: -81.2°   Azimuth: 16.2°   Direction: North-North-East

HR3166 is a bright giant star in the constellation of Puppis.

HR3166 visual magnitude is 6.29. Because of its reltive faintness, HR3166 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 HR3166:

Bright giant

HR3166 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -81.2°
Azimuth: 16.2°
Direction: North-North-East

Celestial coordinates and finder chart of HR3166

HR3166 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 HR3166 are provided in the following table:

08h 03m 29s
-42° 56’ 54”

The simplified sky map below shows the position of HR3166 in the sky:

Finder chart HR3166 star
Simplified finder chart for HR3166.

Visibility of HR3166 from your location

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

HR3166 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR3166

The image below is a photograph of HR3166 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 HR3166 is -0.026 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 HR3166 star
DSS2 image of HR3166. The red arrow shows the motion of HR3166 during the next 10000 years (-4.33 arcmin in Right Ascension and -2.17 arcmin in declination);

Distance of HR3166 from the Sun and relative movement

HR3166 is distant 779.90 light years from the Sun and it is moving far from the Sun at the speed of 14 kilometers per second.

239.23 pc
779.90 ly
14 km/s
-0.026 arcsec/year
-0.013 arcsec/year

Spectral properties of HR3166

HR3166 belongs to spectral class G8 and has a luminosity class of II corresponding to a bright giant star.


The red dot in the diagram below shows where HR3166 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3166. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3166