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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: 7:48  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
sunny DaytimeWhat's Visible Now?
All Constellations » Pegasus » 

18 Pegasi

Altitude: 14.6°   Azimuth: 97.7°   Direction: East

18 Pegasi is a giant star in the constellation of Pegasus.

18 Pegasi visual magnitude is 6. Because of its reltive faintness, 18 Pegasi 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 18 Pegasi:


18 Pegasi is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 14.6°
Azimuth: 97.7°
Direction: East

Celestial coordinates and finder chart of 18 Pegasi

18 Pegasi 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 18 Pegasi are provided in the following table:

22h 00m 07s
+06° 43’ 03”

The simplified sky map below shows the position of 18 Pegasi in the sky:

Finder chart 18 Pegasi star
Simplified finder chart for 18 Pegasi.

Visibility of 18 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 18 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: 83.3°
Max altitude: 45.2°
Azimuth: 276.7°

Digitized Sky Survey image of 18 Pegasi

The image below is a photograph of 18 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 18 Pegasi is 0.015 arcsec per year in Right Ascension and 0.004 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 18 Pegasi star
DSS2 image of 18 Pegasi. The red arrow shows the motion of 18 Pegasi during the next 10000 years (2.50 arcmin in Right Ascension and 0.67 arcmin in declination);

Distance of 18 Pegasi from the Sun and relative movement

18 Pegasi is distant 1,068.85 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.

327.87 pc
1,068.85 ly
-7 km/s
0.015 arcsec/year
0.004 arcsec/year

Spectral properties of 18 Pegasi

18 Pegasi belongs to spectral class B3 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where 18 Pegasi is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 18 Pegasi. Attribution: Richard Powell / CC BY-SA

Alternative designations of 18 Pegasi