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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:09 
Transit: 11:43 
Sunset: 16:18
wb_twilight   (Nautical Twilight)  
What's Visible Now • Tonight Timeline
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All Constellations » Pegasus » 

4 Pegasi

Above the horizon.  Rise: 11:54 | Tran: 18:22 | Set: 0:53
Alt: 43.29°   Az: 163.16°   Direction: South-South-East

4 Pegasi is a double sub-giant star of spectral class A9 in the constellation of Pegasus.

4 Pegasi visual magnitude is 5.67. Because of its faintness, 4 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.

Image of 4 Pegasi star
DSS2 image of 4 Pegasi. The red arrow shows the motion of 4 Pegasi during the next 1000 years (1.90 arcmin in Right Ascension and 0.40 arcmin in declination);

Celestial Coordinates

Apparent

21h 39m 46s
+05° 53’ 05”
23h 11m 01s
20h 50m 48s

J2000

21h 38m 31s
+05° 46’ 18”

Galactic Coordinates

60.76°
-32.96°

Finder Chart

Finder chart 4 Pegasi star
Simplified finder chart for 4 Pegasi.

Magnitude, Color, Spectral Class

5.67
Sub-giant

2.03
A9IV
7795K

The red dot in the diagram below shows where 4 Pegasi is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 4 Pegasi. Attribution: Richard Powell / CC BY-SA

Star System Properties

4 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 4 Pegasi double sysyem:

5.67
12.07
6.4
27.2 arcsec

Distance, Radial Speed, Proper Motion

4 Pegasi is distant 173.96 light years from the Sun and it is moving towards the Sun at the speed of 19 kilometers per second.

53.36
173.96
-19 km/s
0.114 arcsec/y
0.024"/y

Alternative Designations

SAO126956
SAO126956

Visibility from Your Location

Today's 4 Pegasi rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 84.1°
Max altitude: 44.4°
Azimuth: 275.9°