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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
sunny DaytimeWhat's Visible Now?
All Constellations » Crater » 

ψ Crateris (psi Crateris)

Altitude: 18.2°   Azimuth: 198.4°   Direction: South-South-West

ψ Crateris is a double hypergiant star in the constellation of Crater.

ψ Crateris visual magnitude is 6.13. Because of its reltive faintness, ψ Crateris 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 ψ Crateris:


ψ Crateris (psi Crateris) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 18.2°
Azimuth: 198.4°
Direction: South-South-West

Celestial coordinates and finder chart of ψ Crateris

ψ Crateris 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 ψ Crateris are provided in the following table:

11h 12m 30s
-18° 30’ 00”

The simplified sky map below shows the position of ψ Crateris in the sky:

Finder chart ψ Crateris (psi Crateris) star
Simplified finder chart for ψ Crateris (psi Crateris).

Visibility of ψ Crateris 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 ψ Crateris (psi Crateris) 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: 108.5°
Max altitude: 20.0°
Azimuth: 251.5°

Digitized Sky Survey image of ψ Crateris

The image below is a photograph of ψ Crateris 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 ψ Crateris is -0.019 arcsec per year in Right Ascension and -0.03 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of ψ Crateris (psi Crateris) star
DSS2 image of ψ Crateris. The red arrow shows the motion of ψ Crateris during the next 10000 years (-3.17 arcmin in Right Ascension and -5.00 arcmin in declination);

Distance of ψ Crateris from the Sun and relative movement

ψ Crateris is distant 478.71 light years from the Sun and it is moving far from the Sun at the speed of 14 kilometers per second.

146.84 pc
478.71 ly
14 km/s
-0.019 arcsec/year
-0.03 arcsec/year

Spectral properties of ψ Crateris

ψ Crateris belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.


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

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

ψ Crateris star system properties

ψ Crateris 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 ψ Crateris double sysyem:

0.2 arcsec

Alternative designations of ψ Crateris

ψ Crateris
(psi Crateris)