HR8157 is a variable bright giant star in the constellation of Cygnus.
HR8157 visual magnitude is 5.83. Because of its reltive faintness, HR8157 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 HR8157:
Celestial coordinates and finder chart of HR8157
HR8157 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR8157 are provided in the following table:
The simplified sky map below shows the position of HR8157 in the sky:
Visibility of HR8157 from your location
Today's HR8157 rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):
Digitized Sky Survey image of HR8157
The image below is a photograph of HR8157 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 HR8157 is 0.011 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of HR8157 from the Sun and relative movement
HR8157 is distant 3,505.38 light years from the Sun and it is moving far from the Sun at the speed of 8 kilometers per second.
Spectral properties of HR8157
HR8157 belongs to spectral class F1 and has a luminosity class of II corresponding to a bright giant star.
The red dot in the diagram below shows where HR8157 is situated in the Hertzsprung–Russell diagram.