18 Ursae Majoris
18 Ursae Majoris is a variable main-sequence star in the constellation of Ursa Major.
18 Ursae Majoris visual magnitude is 4.83. Because of its moderate brightness, 18 Ursae Majoris should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.
The table below summarizes the key facts about 18 Ursae Majoris:
Celestial coordinates and finder chart of 18 Ursae Majoris
18 Ursae Majoris 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 18 Ursae Majoris are provided in the following table:
The simplified sky map below shows the position of 18 Ursae Majoris in the sky:
Visibility of 18 Ursae Majoris from your location
18 Ursae Majoris is circumpolar and transits at 04:29 UTC (altitude: 87.5°)
Digitized Sky Survey image of 18 Ursae Majoris
The image below is a photograph of 18 Ursae Majoris 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 18 Ursae Majoris is 0.049 arcsec per year in Right Ascension and 0.061 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of 18 Ursae Majoris from the Sun and relative movement
18 Ursae Majoris is distant 118.33 light years from the Sun and it is moving towards the Sun at the speed of 19 kilometers per second.
Spectral properties of 18 Ursae Majoris
18 Ursae Majoris belongs to spectral class A5 and has a luminosity class of V corresponding to a main-sequence star.
The red dot in the diagram below shows where 18 Ursae Majoris is situated in the Hertzsprung–Russell diagram.