HR1881 is a variable hypergiant star in the constellation of Columba.
HR1881 visual magnitude is 5.78. Because of its reltive faintness, HR1881 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 HR1881:
Celestial coordinates and finder chart of HR1881
HR1881 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR1881 are provided in the following table:
The simplified sky map below shows the position of HR1881 in the sky:
Visibility of HR1881 from your location
Location: Greenwich, United Kingdom
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Today's HR1881 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 HR1881
The image below is a photograph of HR1881 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 HR1881 is 0.097 arcsec per year in Right Ascension and -0.041 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.
Distance of HR1881 from the Sun and relative movement
HR1881 is distant 277.68 light years from the Sun and it is moving far from the Sun at the speed of 15 kilometers per second.
Spectral properties of HR1881
HR1881 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.
The red dot in the diagram below shows where HR1881 is situated in the Hertzsprung–Russell diagram.