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Iota Antliae, Latinized from ι Antliae, is a single, [9] orange-hued star in the southern constellation of Antlia. It has an apparent visual magnitude of +4.60, [2] making it a faint naked eye star. From parallax measurements, the distance to this star can be estimated as 202 ± 2 light-years (61.93 ± 0.61 parsecs). [1]
This star has 2.2 times the mass of the Sun and has expanded to 41 times the solar radius. Compared to the Sun , it has only 41% of the abundance of elements other than hydrogen and helium . α Antliae has been reported to vary in brightness between magnitude 4.22 and 4.29, first in 1879 by Benjamin Gould , but this has not been confirmed in ...
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
Front cover Albireo, a well-known coloured double star.Compare the colour of other stars in . On the coloured light of the binary stars and some other stars of the heavens or in the original German Über das farbige Licht der Doppelsterne und einiger anderer Gestirne des Himmels is a treatise by Christian Doppler (1842) [1] in which he postulated his principle that the observed frequency ...
Theta Leonis, Latinized from θ Leonis, formally named Chertan, [10] is a star in the constellation of Leo.With an apparent visual magnitude of +3.324 [2] it is visible to the naked eye and forms one of the brighter stars in the constellation.
The component stars of ε 1 have magnitudes of 4.7 and 6.2 separated by 2.6" and have an orbital period that can only be crudely estimated at 1200 years, which places them at roughly 140 AU apart. Main components of ε 2 have magnitudes 5.1 and 5.5 separated by 2.3", and orbit in perhaps half that period. ε 1 and ε 2 are more than 0.16 light ...
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A survey of the nebula with the Chandra X-ray Observatory has revealed the presence of numerous new-born stars inside optical Rosette Nebula and studded within a dense molecular cloud. Altogether, approximately 2500 young stars lie in this star-forming complex , including the massive O-type stars HD 46223 and HD 46150, which are primarily ...