HR820 is a multiple main-sequence star in the constellation of Perseus.
HR820 visual magnitude is 6.3. Because of its reltive faintness, HR820 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 HR820:
HR820 is below the horizon from Greenwich, United Kingdom .
Celestial coordinates and finder chart of HR820
HR820 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 HR820 are provided in the following table:
The simplified sky map below shows the position of HR820 in the sky:
Visibility of HR820 from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Today's HR820 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 HR820
The image below is a photograph of HR820 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 HR820 is -0.043 arcsec per year in Right Ascension and -0.047 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of HR820 from the Sun and relative movement
HR820 is distant 153.48 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.
Spectral properties of HR820
HR820 belongs to spectral class A9 and has a luminosity class of V corresponding to a main-sequence star.
The red dot in the diagram below shows where HR820 is situated in the Hertzsprung–Russell diagram.
HR820 star system properties
HR820 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR820 double sysyem: