13 Pegasi

Above the horizon. Rise: 23:36 | Tran: 7:10 | Set: 14:40

Alt: 35.73° Az: 251.82° Direction: West-South-West

13 Pegasi is a variable and double giant star of spectral class F2 in the constellation of Pegasus.

13 Pegasi visual magnitude is 5.29. Because of its faintness, 13 Pegasi is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

DSS2 image of 13 Pegasi. The red arrow shows the motion of 13 Pegasi during the next 10000 years (12.67 arcmin in Right Ascension and -10.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 21h 51m 21s

Declination +17° 24’ 17”

Hour Angle 03h 35m 43s

Sidereal Time 01h 27m 04s

J2000

Right Ascension 21h 50m 08s

Declination +17° 17’ 08”

Galactic Coordinates

Galactic Longitude 72.97°

Galactic Latitude -27.52°

Finder Chart

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Finder chart for 13 Pegasi.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.29

Class Giant

Absolute magnitude 2.67

Spectral Type F2III

Color Index (B-V) 0.37

Temperature 7044K

The red dot in the diagram below shows where 13 Pegasi is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 13 Pegasi. Attribution: Richard Powell / CC BY-SA

Star System Properties

13 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 13 Pegasi double sysyem:

Main star magnitude 5.29

Secondary star magnitude 7.29

Magnitude difference 2

Separation 0.2 arcsec

Distance, Radial Speed, Proper Motion

13 Pegasi is distant 108.99 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

Distance (parsec) 33.43

Distance (light year) 108.99

Radial Speed -4 km/s

Proper Motion RA 0.076 arcsec/y

Proper Motion Dec -0.061"/y

Alternative Designations

Flamsteed designation 13 Pegasi

Henry Draper Catalogue HD207652

SAO Catalogue SAO107425

Hipparcos Catalogue HIP107788

Durchmusterung Catalogue BD+16 4612

General Catalogue of Variable Stars 13891

Visibility from Your Location

Today's 13 Pegasi rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 72.6° RISE 23:36

Max altitude: 55.9° TRANSIT 7:10

Azimuth: 287.4° SET 14:40

Set Location

Other stars in Pegasus