HR2639 is a variable giant star in the constellation of Monoceros.
HR2639 visual magnitude is 5.2. Because of its reltive faintness, HR2639 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 HR2639:
Celestial coordinates and finder chart of HR2639
HR2639 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 HR2639 are provided in the following table:
The simplified sky map below shows the position of HR2639 in the sky:
Visibility of HR2639 from your location
Digitized Sky Survey image of HR2639
The image below is a photograph of HR2639 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 HR2639 is -0.016 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of HR2639 from the Sun and relative movement
HR2639 is distant 682.01 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.
Spectral properties of HR2639
HR2639 belongs to spectral class M2 and has a luminosity class of III corresponding to a giant star.
The red dot in the diagram below shows where HR2639 is situated in the Hertzsprung–Russell diagram.