We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Help keep this site free and ads-free: donate now!
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 5:37  
clear_day Transit: 12:56  
SunsetSet: 20:15
sunny DaytimeWhat's Visible Now?
All Constellations » Pegasus » 

π1 Pegasi (pi1 Pegasi)

Altitude: 40.2°   Azimuth: 275.1°   Direction: West

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 skies, while it is not visible at all from skies affected by light pollution.

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);

Key facts about π1 Pegasi

5.58
Giant

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

Altitude: 40.2°
Azimuth: 275.1°
Direction: West

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”
87.93°
-18.45°
Pegasus

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°

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.

0.89
G8III
4743K

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:

5.58
11.38
5.8
70.2 arcsec

Alternative designations of π1 Pegasi

π1 Pegasi
(pi1 Pegasi)
SAO72064
SAO72064