Deneb has stopped fusing hydrogen in its core and is expected to explode as a supernova within the next few million years. Together with the stars of Altair and Vega, Deneb forms the Summer Triangle , a prominent asterism in the summer sky. Next up is Gamma Cygni aka. It can easily seen in the night sky at the intersection of the Northern Cross thanks to its apparent magnitude of 2. It is also believed to be only about 12 million years old and consumes its nuclear fuel more rapidly because of its mass 12 Solar masses.
Glenah , an orange giant of the spectral class K0 III that is It is 62 times more luminous than the Sun and measures 11 Solar radii. Delta Cygni Rukh , is a triple star system in Cygnus, which is located about light years away. The system consists of two stars lying close together and a third star located a little further from the main pair.
The brightest component is a blue-white fast-rotating giant belonging to the spectral class B9 III. Albireo which is only the fifth brightest star in the constellation Cygnus, despite its designation. This binary star system, which appears as a single star to the naked eye, is approximately light-years distant. It is one of the stars that form the Northern Cross.
The binary system consists of a yellow star which is itself a close binary star that cannot be resolved as two separate objects. Its second star is a fainter blue fast-rotating companion star with an apparent magnitude of 5. Cygnus is also home to a number of Deep Sky Objects. These include Messier 29 NGC , an open star cluster that is about 10 million years old and located about 4, light years from Earth.
It can be spotted with binoculars a short distance away from Gamma Cygni — 1. Next up is Messier 39 NGC , another open star cluster that is located about light-years away and is between and million years old. All the stars observed in this cluster are in their main sequence phase and the brightest ones will soon evolve to the red giant stage.
The cluster can be found two and a half degrees west and a degree south of the star Pi-2 Cygni. There is also the Fireworks Galaxy NGC , an intermediate spiral galaxy that is approximately The galaxy is located near the border of the constellation Cepheus and lies close to the galactic plane, where causes it to become obscured by the interstellar matter of the Milky Way. Cygnus X-1 is notable for being the first X-ray source to be identified as a black hole candidate, with a mass 8.
It orbits a blue supergiant variable star some 6, light-years away, which is one of two stars form a binary system. Over time, an accretion disk of material brought from the star by a stellar wind has formed around Cygnus X-1, which is the source of its X-ray emissions. From mid-northern latitudes, the constellation Cygnus rises high into the sky on summer nights. This means that it is very easy to spot without the worry of obstructions such as trees or neighboring houses.
This is one of the many reasons Cygnus is such a popular choice for amateur astrophotography and visual observations through a telescope. Cygnus constellation star map. Sky and Telescope and the IAU. The Cygnus constellation is associated with several myths. As the race got intense they flew too close to the sun and unfortunately, their chariots burned down.
Both of them came crashing back to the Earth. When Cycnus regained his consciousness, he searched around for his dear friend Phaeton and found his dead body at the bottom of the Eridanus River. A star map depicting the Cygnus constellation as a Swan from If Zeus would allow Cycnus to transform into a swan, Cycnus would live only as long as a swan usually does. The lovers secretly get married which the Goddess does not approve of at all and thus places a river in the sky to keep them apart.
This river is our very own galaxy i. Milky Way. The legend goes that every year, in order to rejoin the lovers, all the magpies gather together and form a gigantic bridge over the river.
Our Cygnus constellation is this very own magpie bridge. The brightest star within Cygnus is Deneb which is also called Alpha Cygni. It has a magnitude of 1. For those who are new to the world of astronomy, the lower the magnitude of a star, the brighter it is. Deneb lies roughly light-years away from Earth and it is a bluish-white supergiant. The second brightest star within the constellation is called Sadr.
She gave birth to the twins Castor and Pollux who are represented by the constellation Gemini. Cygnus contains a number of bright stars. Deneb is the brightest with a visual magnitude of 1. It is a blue-white supergiant star located 1, light years from Earth. The second brightest star is Sadr with a magnitude of 2. It is also a blue-white supergiant star approximate 1, light years away.
At magnitude 2. Gienah is an orange giant star that is 62 times brighter than the Sun and has 11 times its radius.
Since Cygnus lies on the plane of the Milky Way, it is rich in deep-sky objects, including two Messier objects. M29 is an open star cluster that contains around 50 stars. M39 is another open star cluster than contains more than 30 stars.
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