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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: 6:40  
clear_day Transit: 12:10  
SunsetSet: 17:41
wb_twilight Nautical TwilightWhat's Visible Now?
All Constellations » Virgo » 

ψ Virginis (psi Virginis)

Altitude: 12.4°   Azimuth: 236.7°   Direction: West-South-West

ψ Virginis is a variable and double giant star in the constellation of Virgo.

ψ Virginis visual magnitude is 4.79. Because of its moderate brightness, ψ Virginis should be easily visible from locations with dark skies, while it can be barely visible, or not visible at all, from skies affected by light pollution.

The proper motion of ψ Virginis is -0.024 arcsec per year in Right Ascension and -0.015 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of ψ Virginis (psi Virginis) star
DSS2 image of ψ Virginis. The red arrow shows the motion of ψ Virginis during the next 10000 years (-4.00 arcmin in Right Ascension and -2.50 arcmin in declination);

Key facts about ψ Virginis

4.79
Giant

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

Altitude: 12.4°
Azimuth: 236.7°
Direction: West-South-West

Celestial coordinates and finder chart of ψ Virginis

ψ Virginis 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 Virginis are provided in the following table:

12h 54m 21s
-09° 32’ 20”
304.14°
53.33°
Virgo

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

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

Visibility of ψ Virginis 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 Virginis (psi Virginis) 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: 99.5°
Max altitude: 29.0°
Azimuth: 260.5°

Distance of ψ Virginis from the Sun and relative movement

ψ Virginis is distant 416.88 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

127.88 pc
416.88 ly
18 km/s
-0.024 arcsec/year
-0.015 arcsec/year

Spectral properties of ψ Virginis

ψ Virginis belongs to spectral class M3 and has a luminosity class of III corresponding to a giant star.

-0.74
M3III
3649K

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

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

ψ Virginis star system properties

ψ Virginis 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 Virginis double sysyem:

4.79
8.09
3.3
0 arcsec

Alternative designations of ψ Virginis

ψ Virginis
(psi Virginis)
40 Virginis
SAO139033
SAO139033