Prima Hyadum - γ Tauri (gamma Tauri)
Prima Hyadum, also designated as γ Tauri (gamma Tauri), is a variable hypergiant star in the constellation of Taurus.
Prima Hyadum visual magnitude is 3.65. Because of its moderate brightness, Prima Hyadum 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 Prima Hyadum:
Celestial coordinates and finder chart of Prima Hyadum
Prima Hyadum 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 Prima Hyadum are provided in the following table:
The simplified sky map below shows the position of Prima Hyadum in the sky:
Visibility of Prima Hyadum from your location
Digitized Sky Survey image of Prima Hyadum
The image below is a photograph of Prima Hyadum 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 Prima Hyadum is 0.115 arcsec per year in Right Ascension and -0.025 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.
Distance of Prima Hyadum from the Sun and relative movement
Prima Hyadum is distant 153.99 light years from the Sun and it is moving far from the Sun at the speed of 39 kilometers per second.
Spectral properties of Prima Hyadum
Prima Hyadum 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 Prima Hyadum is situated in the Hertzsprung–Russell diagram.