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public LocationGreenwich, UK
Sunrise: 4:58 
Transit: 13:04 
Sunset: 21:09
sunny   (Daytime)   What's Visible Now?
All Constellations » Pegasus » 

Helvetios - 51 Pegasi

Above the horizon.  Rise: 20:36 | Tran: 4:31 | Set: 12:22
Altitude: 50.9°   Azimuth: 230.1°   Direction: South-West

Helvetios, also designated as 51 Pegasi , is a variable sub-giant star of spectral class G2 in the constellation of Pegasus.

Helvetios visual magnitude is 5.49. Because of its faintness, Helvetios 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.

Helvetios is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year.

Image of Helvetios - 51 Pegasi star
DSS2 image of Helvetios. The red arrow shows the motion of Helvetios during the next 1000 years (3.40 arcmin in Right Ascension and 0.98 arcmin in declination);

Apparent Coordinates

22h 58m 40s
+20° 54’ 01”

J2000 Coordinates

22h 57m 27s
+20° 46’ 08”

Galactic Coordinates


Finder Chart

Finder chart Helvetios - 51 Pegasi star
Simplified finder chart for Helvetios - 51 Pegasi.

Magnitude, Color, Spectral Class



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

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

Distance, Radial Speed, Proper Motion

Helvetios is distant 50.08 light years from the Sun and it is moving towards the Sun at the speed of 31 kilometers per second.

15.36 pc
50.08 ly
-31 km/s
0.204 arcsec/y
0.059 "/y

Alternative Designations


Visibility from Your Location

Today's Helvetios - 51 Pegasi rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 69.2°
Max altitude: 59.3°
Azimuth: 290.8°