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NGC 3261 is a barred spiral galaxy in the constellation Vela. The galaxy lies about 110 million light years away from Earth based on redshift, which means, given its apparent dimensions, that NGC 3261 is approximately 130,000 light years across. [1] It was discovered by John Herschel on March 15, 1836. [3]
Vela is a constellation in the southern sky, which contains the Vela Supercluster. Its name is Latin for the sails of a ship, and it was originally part of a larger constellation, the ship Argo Navis , which was later divided into three parts, the others being Carina and Puppis .
HR 3562 (HD 76566) is a visual binary consisting of a bluish-white hued variable star and a Sun-like secondary star in the southern constellation of Vela. It has the variable-star designation IY Velorum (abbreviated to IY Vel). With an apparent magnitude of 6.26, the brighter primary is near the limit for naked eye visibility.
Kappa Velorum (κ Velorum, abbreviated Kappa Vel, κ Vel; proper name Markeb [10] / ˈ m ɑːr k ɛ b /) is a binary star system in the southern constellation of Vela. The two components are designated Kappa Velorum A and B. From parallax measurements, this system is located at a distance of roughly 572 light-years (175 parsecs) from the Sun.
Gamma Velorum is a quadruple star system in the constellation Vela.This name is the Bayer designation for the star, which is Latinised from γ Velorum and abbreviated γ Vel.At a combined magnitude of +1.72, it is one of the brightest stars in the night sky, and contains by far the closest and brightest Wolf–Rayet star.
WY Velorum, also known as HD 81137, is a binary system between a variable red supergiant (RSG) and a blue giant companion in the constellation of Vela. It is located approximately 1,900 parsecs (6,200 light-years) distant. Its apparent magnitude slowly varies over the course of years between 8.84 and 10.22.
HY Velorum is a binary star [7] system in the southern constellation of Vela.It is a dim star but visible to the naked eye with an apparent visual magnitude of 4.83. [5] The distance to this system, as estimated from its annual parallax shift of 7.1 mas, [2] is 460 light years.
The kinematic age of a planetary nebula can be estimated from its expansion speed. According to González-Santamaría and his colleagues, the expansion speed of NGC 2792 is 20 km/s, which gives it a kinematic age of 3.5 thousand years.