Helvetios - 51 Pegasi
Helvetios, also designated as 51 Pegasi , is a variable sub-giant star in the constellation of Pegasus.
Helvetios visual magnitude is 5.49. Because of its reltive faintness, Helvetios 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 Helvetios:
Celestial coordinates and finder chart of Helvetios
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. Celestial coordinates for the J2000 equinox as well as galactic coordinates of Helvetios are provided in the following table:
The simplified sky map below shows the position of Helvetios in the sky:
Visibility of Helvetios from your location
Digitized Sky Survey image of Helvetios
The image below is a photograph of Helvetios 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 Helvetios is 0.204 arcsec per year in Right Ascension and 0.059 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.
Distance of Helvetios from the Sun and relative movement
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.
Spectral properties of Helvetios
Helvetios belongs to spectral class G2 and has a luminosity class of IV corresponding to a sub-giant star.
The red dot in the diagram below shows where Helvetios is situated in the Hertzsprung–Russell diagram.