Subject |
has right ascension |
has spectral type |
has declination |
is part of |
is an instance of |
has V magnitude |
has been observ |
has location |
has B-V magnitude |
has distance |
is usually part of |
is a kind of |
has apparent magnitude |
has synonym |
has definition |
has luminosity class |
naked eye star | | | | Milky Way | | | for many centuries | or center of gravity | | | asterism | naked eye object | brighter than 5 | | A star visible without visual aids | |
red supergiant | | | | | | | | or center of gravity | | | | supergiant | | | A supergiant with spectral type M. Red supergiants are the largest stars in the universe: if put in place of the Sun, some would touch Saturn. The two brightest red supergiants in Earth's sky are Betelgeuse and Antares. | I |
Antares | 16 29 24.4 | M1.5Iab-Ib+B4V | -26 25 55 | Milky Way | naked eye star | 0.96 | for many centuries | inner edge of the Orion spiral arm | 1.83 | 125 parsecs | asterism | | brighter than 5 | HR 6134 | A red M1 Ib supergiant. It has a B3 V companion, which is a radio source. | I |