HR3870 is a variable giant star in the constellation of Ursa Major.
HR3870 visual magnitude is 5.2. Because of its reltive faintness, HR3870 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 HR3870:
Celestial coordinates and finder chart of HR3870
HR3870 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 HR3870 are provided in the following table:
The simplified sky map below shows the position of HR3870 in the sky:
Visibility of HR3870 from your location
HR3870 is circumpolar and transits at 05:26 UTC (altitude: 84.4°)
Digitized Sky Survey image of HR3870
The image below is a photograph of HR3870 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 HR3870 is 0.004 arcsec per year in Right Ascension and 0.034 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of HR3870 from the Sun and relative movement
HR3870 is distant 556.31 light years from the Sun and it is moving far from the Sun at the speed of 8 kilometers per second.
Spectral properties of HR3870
HR3870 belongs to spectral class M3 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where HR3870 is situated in the Hertzsprung–Russell diagram.