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Together with the radial velocity, the total velocity can be calculated. Stars with high rates of proper motion are likely to be relatively close to the Sun, making them good candidates for parallax measurements. [145] When both rates of movement are known, the space velocity of the star relative to the Sun or the galaxy can be computed. Among ...
Scientists have discovered 44 previously unknown stars which had been hidden behind a cluster of galaxies. Physicists at Durham University helped discover the stars in the Dragon Arc galaxy nearly ...
The final fate of the star depends on its mass, with stars of mass greater than about eight times the Sun becoming core collapse supernovae; [101] while smaller stars blow off their outer layers and leave behind the inert core in the form of a white dwarf. The ejection of the outer layers forms a planetary nebula. [102]
The Webb Space Telescope is marking one year of cosmic photographs with one of its best yet: the dramatic close-up of dozens of stars at the moment of birth. The region is relatively small and ...
The following is a list of particularly notable actual or hypothetical stars that have their own articles in Wikipedia, but are not included in the lists above. BPM 37093 — a diamond star Cygnus X-1 — X-ray source
A black hole (artist concept); Vela Pulsar, a rotating neutron star; M80, a globular cluster, and the Pleiades, an open star cluster; The Whirlpool galaxy and Abell 2744, a galaxy cluster; Superclusters, galactic filaments and voids
The two stars were known to the Bedouin as "qarna al-hamal", "horns of the ram". [30] It is 59 light-years from Earth. [31] It has a luminosity of 11 L ☉ and its absolute magnitude is 2.1. [29] It is a spectroscopic binary star, one in which the companion star is only known through analysis of the spectra. [32] The spectral class of the ...
Barnard's Star is a small red dwarf star in the constellation of Ophiuchus. At a distance of 5.96 light-years (1.83 pc ) from Earth, it is the fourth-nearest-known individual star to the Sun after the three components of the Alpha Centauri system, and is the closest star in the northern celestial hemisphere . [ 15 ]