Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]

72 Pegasi

72 Pegasi is a variable and double giant star in the constellation of Pegasus.

72 Pegasi visual magnitude is 4.98. Because of its moderate brightness, 72 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 72 Pegasi:

72 Pegasi is above the horizon from Greenwich, United Kingdom [change]. Altitude: 54°.

Celestial coordinates and finder chart of 72 Pegasi

72 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 72 Pegasi are provided in the following table:

23h 33m 57s
+31° 19’ 31”

The simplified sky map below shows the position of 72 Pegasi in the sky:

Finder chart 72 Pegasi star
Simplified finder chart for 72 Pegasi.

Visibility of 72 Pegasi from your location

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's 72 Pegasi rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 58.7°
Max altitude: 69.8°
Azimuth: 301.3°
72 Pegasi is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 72 Pegasi

The image below is a photograph of 72 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 72 Pegasi is 0.052 arcsec per year in Right Ascension and -0.016 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 72 Pegasi star
DSS2 image of 72 Pegasi. The red arrow shows the motion of 72 Pegasi during the next 10000 years (8.67 arcmin in Right Ascension and -2.67 arcmin in declination);

Distance of 72 Pegasi from the Sun and relative movement

72 Pegasi is distant 547.90 light years from the Sun and it is moving towards the Sun at the speed of 24 kilometers per second.

168.07 pc
547.90 ly
-24 km/s
0.052 arcsec/year
-0.016 arcsec/year

Spectral properties of 72 Pegasi

72 Pegasi belongs to spectral class K4 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where 72 Pegasi is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 72 Pegasi. Attribution: Richard Powell / CC BY-SA

72 Pegasi star system properties

72 Pegasi 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 72 Pegasi double sysyem:

0.5 arcsec

Alternative designations of 72 Pegasi