3 Pegasi

Above the horizon. Rise: 16:25 | Tran: 22:57 | Set: 5:33

Alt: 16.33° Az: 99.90° Direction: East

3 Pegasi is a multiple main-sequence star of spectral class A2 in the constellation of Pegasus.

3 Pegasi visual magnitude is 6.18. Because of its faintness, 3 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 3 Pegasi. The red arrow shows the motion of 3 Pegasi during the next 10000 years (10.00 arcmin in Right Ascension and -1.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 21h 38m 57s

Declination +06° 43’ 49”

Hour Angle 19h 11m 19s

Sideral Time 16h 50m 16s

J2000

Right Ascension 21h 37m 43s

Declination +06° 37’ 05”

Galactic Coordinates

Galactic Longitude 61.41°

Galactic Latitude -32.28°

Finder Chart

Simplified finder chart for 3 Pegasi.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.18

Class Main-sequence

Absolute magnitude 1.49

Spectral Type A2V

Color Index (B-V) 0.02

Temperature 9882K

The red dot in the diagram below shows where 3 Pegasi is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 3 Pegasi. Attribution: Richard Powell / CC BY-SA

Star System Properties

3 Pegasi is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 3 Pegasi double sysyem:

Main star magnitude 6.18

Secondary star magnitude 7.68

Magnitude difference 1.5

Separation 39.2 arcsec

Distance, Radial Speed, Proper Motion

3 Pegasi is distant 282.74 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.

Distance (parsec) 86.73

Distance (light year) 282.74

Radial Speed 3 km/s

Proper Motion RA 0.06 arcsec/y

Proper Motion Dec -0.007"/y

Alternative Designations

Flamsteed designation 3 Pegasi

Henry Draper Catalogue HD205811

SAO Catalogue SAO126940

Hipparcos Catalogue HIP106781

Durchmusterung Catalogue BD+05 4830

Aitken Double Star Catalogue ADS15147

Visibility from Your Location

Today's 3 Pegasi rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 83.3° RISE 16:25

Max altitude: 45.3° TRANSIT 22:57

Azimuth: 276.7° SET 5:33

Name:	Greenwich, UK
Latitude:	51° 28' 48.0" N
Longitude:	0° 0' 0.0" E
Timezone:	Europe/London

Location

Other stars in Pegasus