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: 7:48  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
wb_twilight Nautical TwilightWhat's Visible Now?
All Constellations » Canis Minor » 


Altitude: -29.5°   Azimuth: 38.2°   Direction: North-East

HR3145 is a double giant star in the constellation of Canis Minor.

HR3145 visual magnitude is 4.39. Because of its moderate brightness, HR3145 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 HR3145:


HR3145 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -29.5°
Azimuth: 38.2°
Direction: North-East

Celestial coordinates and finder chart of HR3145

HR3145 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR3145 are provided in the following table:

08h 02m 15s
+02° 20’ 03”
Canis Minor

The simplified sky map below shows the position of HR3145 in the sky:

Finder chart HR3145 star
Simplified finder chart for HR3145.

Visibility of HR3145 from your location

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

Today's HR3145 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 87.7°
Max altitude: 40.9°
Azimuth: 272.3°

Digitized Sky Survey image of HR3145

The image below is a photograph of HR3145 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 HR3145 is -0.031 arcsec per year in Right Ascension and 0.105 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR3145 star
DSS2 image of HR3145. The red arrow shows the motion of HR3145 during the next 1000 years (-0.52 arcmin in Right Ascension and 1.75 arcmin in declination);

Distance of HR3145 from the Sun and relative movement

HR3145 is distant 261.01 light years from the Sun and it is moving far from the Sun at the speed of 71 kilometers per second.

80.06 pc
261.01 ly
71 km/s
-0.031 arcsec/year
0.105 arcsec/year

Spectral properties of HR3145

HR3145 belongs to spectral class K2 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR3145 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3145. Attribution: Richard Powell / CC BY-SA

HR3145 star system properties

HR3145 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 HR3145 double sysyem:

241.4 arcsec

Alternative designations of HR3145