Eta Carinae is circumpolar south of latitude 30°S, so it is never seen north of latitude 30°N.This stellar system is currently one of the most massive that can be studied in detail. Possible implications of mass accretion in Eta Carinae. It is currently classified as a luminous blue Kash A.
Eta Carinae (η Carinae or η Car) is a superbright hypergiant star in the constellation Carina, about 7,500 to 8,000 light-years from the Sun.. Smith, Nathan & Owocki, Stanley P. 2006. In a few years, Eta Carinae produced almost as much visible light as a supernova explosion, but it survived. They are quite rare — only a few dozen are present in a galaxy the size of the Eta Carinae's chief significance for astrophysics is its giant eruption, which was observed around 1843. The system contains at least two stars, of which the primary is a It has brightened since about 1940, peaking above magnitude 4.5 in 2014.
Peculiar star Eta Carinae, in Carina. On the role of continuum-driven eruptions in the evolution of very massive stars.
The historical record of η Carinae I. The visual light curve, 1595–2000. It was a 'supernova impostor' or 'failed supernova'.
Until recently, Eta Carinae was thought to be the most massive single star, but in 2005 it was proved to be a binary system.Stars like Eta Carinae produce over a million times as much light as the Sun. 2004. Frommert, Hartmut & Kronberg, Christine 1998.
Eta Carinae é uma estrela da constelação da Quilha, ou "Carina", em latim, que dista 7500 anos-luz da Terra. Eta Carinae (η Car / η Carinae) je velmi velká a jasná proměnná hvězda v souhvězdí Lodního kýlu, přičemž její hmotnost je asi 100 až 150 krát větší než hmotnost Slunce a její zářivý výkon dosahuje pětimiliontého násobku zářivého výkonu Slunce.
É visível no Hemisfério Sul, mas não no Hemisfério Norte.De tamanho muito grande (segundo a estimativa mais alta seu raio pode medir 0,9 unidades astronômicas), seu aspecto mais marcante é a variação de seu brilho em várias ordens de magnitude.
The system contains at least two stars, of which the primary is a luminous blue variable (LBV) that initially had around 150 solar masses, of which it has lost at least 30. Eta Carinae's giant eruption was the One remarkable aspect of Eta Carinae is its changing brightness.
A hot supergiant of about 30 solar masses is in orbit around the primary.
Frew, David J. & Soker N. 2009.
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