Beta Boötis Beta Boötis Beta Boötis (β Boötis, abbreviated Beta Boo, β Boo), also named Nekkar, is a star in the northern constellation of Boötes. It has an apparent visual magnitude of 3.5, making it one of the brighter members of the constellation. In the modern constellation, it marks the head of Boötis the herdsman. Based upon parallax measurements obtained during the Hipparcos mission, this star is approximately from the Sun. At that distance, the magnitude of the star is reduced by 0.06 from extinction caused by intervening gas and dust. "β Boötis" (Latinised to "Beta Boötis") is the star's Bayer designation.
Carina (constellation) years because it has reached the end of its estimated million-year life span. Since the Milky Way runs through Carina, there are a large number of open clusters in the constellation, embedded in rich star fields. NGC 2516 is an open cluster that is both quite large–approximately half a degree square–and bright, visible to the unaided eye. It is located 1100 light-years from Earth and has approximately 80 stars, the brightest of which is a red giant star of magnitude 5.2. NGC 3114 is another open cluster approximately of the same size, though it is more distant at 3000 light-years