HR4820 is a variable supergiant star in the constellation of Musca.
HR4820 visual magnitude is 6.33. Because of its reltive faintness, HR4820 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 HR4820:
Celestial coordinates and finder chart of HR4820
HR4820 is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4820 are provided in the following table:
The simplified sky map below shows the position of HR4820 in the sky:
Visibility of HR4820 from your location
HR4820 is currently not visible from Greenwich, United Kingdom [change]
Digitized Sky Survey image of HR4820
The image below is a photograph of HR4820 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 HR4820 is -0.004 arcsec per year in Right Ascension and -0.002 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.
Distance of HR4820 from the Sun and relative movement
HR4820 is distant 1,928.99 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.
Spectral properties of HR4820
HR4820 belongs to spectral class F7 and has a luminosity class of I corresponding to a supergiant star.
The red dot in the diagram below shows where HR4820 is situated in the Hertzsprung–Russell diagram.