HR18 is a variable hypergiant star in the constellation of Cetus.
HR18 visual magnitude is 6.06. Because of its reltive faintness, HR18 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 HR18:
Celestial coordinates and finder chart of HR18
HR18 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 HR18 are provided in the following table:
The simplified sky map below shows the position of HR18 in the sky:
Visibility of HR18 from your location
Digitized Sky Survey image of HR18
The image below is a photograph of HR18 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 HR18 is 0 arcsec per year in Right Ascension and -0.025 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of HR18 from the Sun and relative movement
HR18 is distant 1,347.11 light years from the Sun and it is moving towards the Sun at the speed of 17 kilometers per second.
Spectral properties of HR18
HR18 belongs to spectral class M0 and has a luminosity class of III corresponding to a hypergiant star.
The red dot in the diagram below shows where HR18 is situated in the Hertzsprung–Russell diagram.