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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: 7:37  
clear_day Transit: 11:46  
SunsetSet: 15:55 south
sunny DaytimeWhat's Visible Now?
All Constellations » Pegasus » 

π1 Pegasi (pi1 Pegasi)

Altitude: 44.1°   Azimuth: 89.7°   Direction: East

π1 Pegasi is a multiple giant star in the constellation of Pegasus.

π1 Pegasi visual magnitude is 5.58. Because of its reltive faintness, π1 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 π1 Pegasi:


π1 Pegasi (pi1 Pegasi) is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 44.1°
Azimuth: 89.7°
Direction: East

Celestial coordinates and finder chart of π1 Pegasi

π1 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 π1 Pegasi are provided in the following table:

22h 09m 13s
+33° 10’ 19”

The simplified sky map below shows the position of π1 Pegasi in the sky:

Finder chart π1 Pegasi (pi1 Pegasi) star
Simplified finder chart for π1 Pegasi (pi1 Pegasi).

Visibility of π1 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 π1 Pegasi (pi1 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: 56.8°
Max altitude: 71.7°
Azimuth: 303.2°

Digitized Sky Survey image of π1 Pegasi

The image below is a photograph of π1 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 π1 Pegasi is -0.059 arcsec per year in Right Ascension and -0.067 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of π1 Pegasi (pi1 Pegasi) star
DSS2 image of π1 Pegasi. The red arrow shows the motion of π1 Pegasi during the next 10000 years (-9.83 arcmin in Right Ascension and -11.17 arcmin in declination);

Distance of π1 Pegasi from the Sun and relative movement

π1 Pegasi is distant 283.23 light years from the Sun and it is moving towards the Sun at the speed of 6 kilometers per second.

86.88 pc
283.23 ly
-6 km/s
-0.059 arcsec/year
-0.067 arcsec/year

Spectral properties of π1 Pegasi

π1 Pegasi belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where π1 Pegasi is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of π1 Pegasi. Attribution: Richard Powell / CC BY-SA

π1 Pegasi star system properties

π1 Pegasi is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the π1 Pegasi double sysyem:

70.2 arcsec

Alternative designations of π1 Pegasi

π1 Pegasi
(pi1 Pegasi)