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public LocationGreenwich, UK
Sunrise: 4:57 
Transit: 13:04 
Sunset: 21:10
wb_twilight   (Nautical Twilight)   What's Visible Now?
All Constellations » Cancer » 

Copernicus - ρ1 Cancri (rho1 Cancri)

Above the horizon.  Rise: 5:41 | Tran: 14:28 | Set: 23:16
Altitude: 6.8°   Azimuth: 308.2°   Direction: North-West

Copernicus, also designated as ρ1 Cancri (rho1 Cancri), is a double main-sequence star of spectral class G8 in the constellation of Cancer.

Copernicus visual magnitude is 5.95. Because of its faintness, Copernicus is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Copernicus is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere.

Image of Copernicus - ρ1 Cancri (rho1 Cancri) star
DSS2 image of Copernicus. The red arrow shows the motion of Copernicus during the next 1000 years (-8.07 arcmin in Right Ascension and -3.90 arcmin in declination);

Apparent Coordinates

08h 54m 04s
+28° 14’ 13”

J2000 Coordinates

08h 52m 35s
+28° 19’ 50”

Galactic Coordinates


Finder Chart

Finder chart Copernicus - ρ1 Cancri (rho1 Cancri) star
Simplified finder chart for Copernicus - ρ1 Cancri (rho1 Cancri).

Magnitude, Color, Spectral Class



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

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

Star System Properties

Copernicus is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the Copernicus double sysyem:

85 arcsec

Distance, Radial Speed, Proper Motion

Copernicus is distant 40.85 light years from the Sun and it is moving far from the Sun at the speed of 27 kilometers per second.

12.53 pc
40.85 ly
27 km/s
-0.484 arcsec/y
-0.234 "/y

Alternative Designations

ρ1 Cancri
(rho1 Cancri)
Gl 324 A

Visibility from Your Location

Today's Copernicus - ρ1 Cancri (rho1 Cancri) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 61.7°
Max altitude: 66.9°
Azimuth: 298.3°