Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:34  ☀️ Transit: 13:02  🌅 Sunset: 19:31

ι Pegasi (iota Pegasi)

ι Pegasi is a variable and double main-sequence star in the constellation of Pegasus.

ι Pegasi visual magnitude is 3.76. Because of its moderate brightness, ι 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 ι Pegasi:

ι Pegasi (iota Pegasi) is above the horizon from Greenwich, United Kingdom [change]. Altitude: 54°.

Celestial coordinates and finder chart of ι Pegasi

ι 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 ι Pegasi are provided in the following table:

22h 07m 00s
+25° 20’ 41”

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

Finder chart ι Pegasi (iota Pegasi) star
Simplified finder chart for ι Pegasi (iota Pegasi).

Visibility of ι Pegasi from your location

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

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

Azimuth: 64.7°
Max altitude: 63.9°
Azimuth: 295.3°
ι Pegasi (iota Pegasi) is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of ι Pegasi

The image below is a photograph of ι 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 ι Pegasi is 0.298 arcsec per year in Right Ascension and 0.025 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of ι Pegasi (iota Pegasi) star
DSS2 image of ι Pegasi. The red arrow shows the motion of ι Pegasi during the next 1000 years (4.97 arcmin in Right Ascension and 0.42 arcmin in declination);

Distance of ι Pegasi from the Sun and relative movement

ι Pegasi is distant 38.33 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

11.76 pc
38.33 ly
-4 km/s
0.298 arcsec/year
0.025 arcsec/year

Spectral properties of ι Pegasi

ι Pegasi belongs to spectral class F5 and has a luminosity class of V corresponding to a main-sequence star.


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

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

ι Pegasi star system properties

ι 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 ι Pegasi double sysyem:

103.7 arcsec

Alternative designations of ι Pegasi

ι Pegasi
(iota Pegasi)