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public LocationGreenwich, UK
Sunrise: 5:07 
Transit: 13:06 
Sunset: 21:04
wb_twilight   (Astronomical Twilight)   What's Visible Now?
All Constellations » Cancer » 

ο1 Cancri (omicron1 Cancri)

Below the horizon.  Rise: 6:49 | Tran: 14:07 | Set: 21:24
Alt: -21.60°   Az: 18.03°   Direction: North-North-East

ο1 Cancri is a giant star of spectral class A5 in the constellation of Cancer.

ο1 Cancri visual magnitude is 5.2. Because of its faintness, ο1 Cancri 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.

ο1 Cancri is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year.

Image of ο1 Cancri (omicron1 Cancri) star
DSS2 image of ο1 Cancri. The red arrow shows the motion of ο1 Cancri during the next 10000 years (9.33 arcmin in Right Ascension and 2.83 arcmin in declination);

Celestial Coordinates


08h 58m 36s
+15° 13’ 37”
13h 09m 24s
22h 08m 01s


08h 57m 14s
+15° 19’ 22”

Galactic Coordinates


Finder Chart

Finder chart ο1 Cancri (omicron1 Cancri) star
Simplified finder chart for ο1 Cancri (omicron1 Cancri).

Magnitude, Color, Spectral Class



The red dot in the diagram below shows where ο1 Cancri is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of ο1 Cancri. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

ο1 Cancri is distant 159.88 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.

49.04 pc
159.88 ly
-5 km/s
0.056 arcsec/y
0.017 "/y

Alternative Designations

ο1 Cancri
(omicron1 Cancri)

Visibility from Your Location

Today's ο1 Cancri (omicron1 Cancri) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 74.8°
Max altitude: 53.7°
Azimuth: 285.2°