Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 6:54  
clear_day Transit: 12:49  
SunsetSet: 18:43 south
sunny DaytimeWhat's Visible Now
All Constellations » Cancer » 

57 Cancri

Altitude: 21.3°   Azimuth: 292.7°   Direction: West-North-West

57 Cancri is a multiple giant star in the constellation of Cancer.

57 Cancri visual magnitude is 5.39. Because of its reltive faintness, 57 Cancri 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 57 Cancri:


57 Cancri is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 21.3°
Azimuth: 292.7°
Direction: West-North-West

Celestial coordinates and finder chart of 57 Cancri

57 Cancri is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 57 Cancri are provided in the following table:

08h 54m 14s
+30° 34’ 45”

The simplified sky map below shows the position of 57 Cancri in the sky:

Finder chart 57 Cancri star
Simplified finder chart for 57 Cancri.

Visibility of 57 Cancri 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 57 Cancri 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: 59.4°
Max altitude: 69.1°
Azimuth: 300.6°

Digitized Sky Survey image of 57 Cancri

The image below is a photograph of 57 Cancri 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 57 Cancri is 0.038 arcsec per year in Right Ascension and -0.019 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 57 Cancri star
DSS2 image of 57 Cancri. The red arrow shows the motion of 57 Cancri during the next 10000 years (6.33 arcmin in Right Ascension and -3.17 arcmin in declination);

Distance of 57 Cancri from the Sun and relative movement

57 Cancri is distant 365.06 light years from the Sun and it is moving towards the Sun at the speed of 60 kilometers per second.

111.98 pc
365.06 ly
-60 km/s
0.038 arcsec/year
-0.019 arcsec/year

Spectral properties of 57 Cancri

57 Cancri belongs to spectral class G7 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where 57 Cancri is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 57 Cancri. Attribution: Richard Powell / CC BY-SA

57 Cancri star system properties

57 Cancri is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the 57 Cancri double sysyem:

1.5 arcsec

Alternative designations of 57 Cancri