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

17 Pegasi

17 Pegasi is a main-sequence star in the constellation of Pegasus.

17 Pegasi visual magnitude is 5.54. Because of its reltive faintness, 17 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 17 Pegasi:

17 Pegasi is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of 17 Pegasi

17 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 17 Pegasi are provided in the following table:

21h 56m 56s
+12° 04’ 35”

The simplified sky map below shows the position of 17 Pegasi in the sky:

Finder chart 17 Pegasi star
Simplified finder chart for 17 Pegasi.

Visibility of 17 Pegasi from your location

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

Today's 17 Pegasi rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 77.9°
Max altitude: 50.6°
Azimuth: 282.1°
17 Pegasi is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 17 Pegasi

The image below is a photograph of 17 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 17 Pegasi is -0.024 arcsec per year in Right Ascension and -0.014 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 17 Pegasi star
DSS2 image of 17 Pegasi. The red arrow shows the motion of 17 Pegasi during the next 10000 years (-4.00 arcmin in Right Ascension and -2.33 arcmin in declination);

Distance of 17 Pegasi from the Sun and relative movement

17 Pegasi is distant 439.95 light years from the Sun and it is moving far from the Sun at the speed of 15 kilometers per second.

134.95 pc
439.95 ly
15 km/s
-0.024 arcsec/year
-0.014 arcsec/year

Spectral properties of 17 Pegasi

17 Pegasi belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where 17 Pegasi is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 17 Pegasi. Attribution: Richard Powell / CC BY-SA

Alternative designations of 17 Pegasi