ψ Pegasi (psi Pegasi)

Altitude: -13.4° Azimuth: 0.1° Direction: North

ψ Pegasi is a variable giant star in the constellation of Pegasus.

ψ Pegasi visual magnitude is 4.66. Because of its moderate brightness, ψ Pegasi should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about ψ Pegasi:

Color of ψ Pegasi ⬤

Magnitude of ψ Pegasi 4.66

Class Giant

VISIBILITY RIGHT NOW

ψ Pegasi (psi Pegasi) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -13.4°
Azimuth: 0.1°
Direction: North

Celestial coordinates and finder chart of ψ Pegasi

ψ Pegasi 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 ψ Pegasi are provided in the following table:

Right Ascension J2000 23h 57m 45s

Declination J2000 +25° 08’ 29”

Galactic Longitude 107.85°

Galactic Latitude -36.15°

Constellation Pegasus

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

Simplified finder chart for ψ Pegasi (psi Pegasi).

Visibility of ψ Pegasi 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 Pegasi (psi Pegasi) 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: 64.9° RISE 10:34

Max altitude: 63.7° TRANSIT 18:56

Azimuth: 295.1° SET 3:22

Digitized Sky Survey image of ψ Pegasi

The image below is a photograph of ψ Pegasi 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 Pegasi is -0.034 arcsec per year in Right Ascension and -0.033 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of ψ Pegasi. The red arrow shows the motion of ψ Pegasi during the next 10000 years (-5.67 arcmin in Right Ascension and -5.50 arcmin in declination);

Distance of ψ Pegasi from the Sun and relative movement

ψ Pegasi is distant 432.36 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

Distance (parsec) 132.63 pc

Distance (light year) 432.36 ly

Heliocentric radial velocity -4 km/s

Proper Motion RA -0.034 arcsec/year

Proper Motion Dec -0.033 arcsec/year

Spectral properties of ψ Pegasi

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

Absolute magnitude -0.95

Spectral Type M3III

Color Index (B-V) 1.59

Temperature of ψ Pegasi 3663K

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

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

Alternative designations of ψ Pegasi

Bayer designation ψ Pegasi
(psi Pegasi)

Flamsteed designation 84 Pegasi

Henry Draper Catalogue HD224427

SAO Catalogue SAO91611

Hipparcos Catalogue HIP118131

Durchmusterung Catalogue BD+24 4865

FK5 Catalogue 1629

General Catalogue of Variable Stars 14777

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In Evidence

Other stars in Pegasus