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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
SunriseRise: 6:35  
clear_day Transit: 12:10  
SunsetSet: 17:45
sunny DaytimeWhat's Visible Now?
All Constellations » Cancer » 

π1 Cancri (pi1 Cancri)

Altitude: -22.7°   Azimuth: 347.2°   Direction: North-North-West

π1 Cancri is a multiple main-sequence star in the constellation of Cancer.

π1 Cancri visual magnitude is 6.51. Because of its reltive faintness, π1 Cancri should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of π1 Cancri is -0.522 arcsec per year in Right Ascension and 0.248 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of π1 Cancri (pi1 Cancri) star
DSS2 image of π1 Cancri. The red arrow shows the motion of π1 Cancri during the next 1000 years (-8.70 arcmin in Right Ascension and 4.13 arcmin in declination);

Key facts about π1 Cancri


π1 Cancri (pi1 Cancri) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -22.7°
Azimuth: 347.2°
Direction: North-North-West

Celestial coordinates and finder chart of π1 Cancri

π1 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. Celestial coordinates for the J2000 equinox as well as galactic coordinates of π1 Cancri are provided in the following table:

09h 12m 17s
+14° 59’ 45”

The simplified sky map below shows the position of π1 Cancri in the sky:

Finder chart π1 Cancri (pi1 Cancri) star
Simplified finder chart for π1 Cancri (pi1 Cancri).

Visibility of π1 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 π1 Cancri (pi1 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: 75.0°
Max altitude: 53.5°
Azimuth: 285.0°

Distance of π1 Cancri from the Sun and relative movement

π1 Cancri is distant 66.76 light years from the Sun and it is moving far from the Sun at the speed of 45 kilometers per second.

20.48 pc
66.76 ly
45 km/s
-0.522 arcsec/year
0.248 arcsec/year

Spectral properties of π1 Cancri

π1 Cancri belongs to spectral class G9 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where π1 Cancri is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of π1 Cancri. Attribution: Richard Powell / CC BY-SA

Alternative designations of π1 Cancri

π1 Cancri
(pi1 Cancri)
Gl 337 A