List of nearest stars and brown dwarfs information
Stars and brown dwarfs within 20 light years of the Solar System
This list covers all known stars, brown dwarfs, and sub-brown dwarfs within 20 light-years (6.13 parsecs) of the Sun. So far, 131 such objects have been found. Only 22 are bright enough to be visible without a telescope, for which the star's visible light needs to reach or exceed the dimmest brightness visible to the naked eye from Earth, 6.5 apparent magnitude.[1]
The known 131 objects are bound in 94 stellar systems. Of those, 103 are main sequence stars: 80 red dwarfs and 23 "typical" stars having greater mass. Additionally, astronomers have found 6 white dwarfs (stars that have exhausted all fusible hydrogen), 21 brown dwarfs, as well as 1 sub-brown dwarf, WISE 0855−0714 (possibly a rogue planet). The closest system is Alpha Centauri, with Proxima Centauri as the closest star in that system, at 4.2465 light-years from Earth. The brightest, most massive and most luminous object among those 131 is Sirius A, which is also the brightest star in Earth's night sky; its white dwarf companion Sirius B is the hottest object among them. The largest object within the 20 light-years is Procyon.
The Solar System, and the other stars/dwarfs listed here, are currently moving within (or near) the Local Interstellar Cloud, roughly 30 light-years (9.2 pc) across. The Local Interstellar Cloud is, in turn, contained inside the Local Bubble, a cavity in the interstellar medium about 300 light-years (92.0 pc) across. It contains Ursa Major and the Hyades star cluster, among others. The Local Bubble also contains the neighboring G-Cloud, which contains the stars Alpha Centauri and Altair. In the galactic context, the Local Bubble is a small part of the Orion Arm, which contains most stars that we can see without a telescope. The Orion Arm is one of the spiral arms of our Milky Way galaxy.
^Weaver, Harold F. (1947). "The Visibility of Stars Without Optical Aid". Publications of the Astronomical Society of the Pacific. 59 (350): 232–243. Bibcode:1947PASP...59..232W. doi:10.1086/125956.
and 29 Related for: List of nearest stars and brown dwarfs information
This list covers all known stars, browndwarfs, and sub-browndwarfs within 20 light-years (6.13 parsecs) of the Sun. So far, 131 such objects have been...
in diameter. Listof black holes Listof most massive black holes Lists of astronomical objects Listofneareststarsandbrowndwarfs NGC 3201 – a globular...
a listofstars, neutron stars, white dwarfsandbrowndwarfs which are the least voluminous known (the smallest stars by volume). This is a listof small...
This is a listofbrowndwarfs. These are objects that have masses between heavy gas giants and low-mass stars. The first isolated browndwarf discovered...
titleholders of being the red dwarf with the smallest volume, and its succession over time. Listof least massive starsListofbrowndwarfs Lists ofstars Croswell...
closest star to the Sun (see Listofneareststarsandbrowndwarfs#Distant future and past encounters). Lists ofstarsBrown, A. G. A.; et al. (Gaia collaboration)...
is the study of remnant planetary systems around white dwarfs. While stars are bright and often outshine the exoplanets andbrowndwarfs that orbit them...
This is a listof coolest starsandbrowndwarfs discovered, arranged by decreasing temperature. The stars with temperatures lower than 2,000 K are included...
have been identified. The nearest known browndwarfs are located in the Luhman 16 system, a binary of L- and T-type browndwarfs about 6.5 light-years (2...
estimates, red dwarfs make up three-quarters of the fusing stars in the Milky Way. The coolest red dwarfs near the Sun have a surface temperature of about 2...
Spur Local Bubble Loop I Bubble Listof Messier objects Listofneareststarsandbrowndwarfs See the "Spiral Arms" part of this NASA animation for details...
interstellar boundary. Listof artificial objects leaving the Solar System Listofneareststarsandbrowndwarfs Local Interstellar Cloud and Local Bubble Interplanetary...
This is a listof exceptional white dwarfstars. These were the first white dwarfs discovered fitting these conditions These are the white dwarfs which are...