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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:38  
clear_day Transit: 11:46  
SunsetSet: 15:54 south
sleep NighttimeWhat's Visible Now?
All Constellations » Cancer » 


Altitude: 46.0°   Azimuth: 218.7°   Direction: South-West

HR3231 is a double giant star in the constellation of Cancer.

HR3231 visual magnitude is 6.38. Because of its reltive faintness, HR3231 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 HR3231:


HR3231 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 46.0°
Azimuth: 218.7°
Direction: South-West

Celestial coordinates and finder chart of HR3231

HR3231 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 HR3231 are provided in the following table:

08h 14m 21s
+13° 02’ 53”

The simplified sky map below shows the position of HR3231 in the sky:

Finder chart HR3231 star
Simplified finder chart for HR3231.

Visibility of HR3231 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 HR3231 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: 77.0°
Max altitude: 51.6°
Azimuth: 283.0°

Digitized Sky Survey image of HR3231

The image below is a photograph of HR3231 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 HR3231 is -0.021 arcsec per year in Right Ascension and -0.018 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR3231 star
DSS2 image of HR3231. The red arrow shows the motion of HR3231 during the next 10000 years (-3.50 arcmin in Right Ascension and -3.00 arcmin in declination);

Distance of HR3231 from the Sun and relative movement

HR3231 is distant 776.19 light years from the Sun and it is moving far from the Sun at the speed of 25 kilometers per second.

238.10 pc
776.19 ly
25 km/s
-0.021 arcsec/year
-0.018 arcsec/year

Spectral properties of HR3231

HR3231 belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR3231 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR3231. Attribution: Richard Powell / CC BY-SA

HR3231 star system properties

HR3231 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 HR3231 double sysyem:

22.8 arcsec

Alternative designations of HR3231