Cygnus (constellation)

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Published on December 9, 2021 2:31:43 PM ● Video Link: https://www.youtube.com/watch?v=UtDeuH7gdC4

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Constellation (2009)

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Cygnus (constellation), by Wikipedia https://en.wikipedia.org/wiki?curid=6421 / CC BY SA 3.0

#Cygnus_(constellation)
#Constellations
#Northern_constellations
#Constellations_listed_by_Ptolemy
#Legendary_birds
Cygnus is a northern constellation on the plane of the Milky Way, deriving its name from the Latinized Greek word for swan.
Cygnus is one of the most recognizable constellations of the northern summer and autumn, and it features a prominent asterism known as the Northern Cross （in contrast to the Southern Cross）.
Cygnus was among the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations.
Cygnus contains Deneb （ذنب, translit. ḏanab, tail） – one of the brightest stars in the night sky and the most distant first-magnitude star – as its "tail star" and one corner of the Summer Triangle.
It also has some notable X-ray sources and the giant stellar association of Cygnus OB2.
Cygnus is also known as the Northern Cross.
One of the stars of this association, NML Cygni, is one of the largest stars currently known.
The constellation is also home to Cygnus X-1, a distant X-ray binary containing a supergiant and unseen massive companion that was the first object widely held to be a black hole.
Many star systems in Cygnus have known planets as a result of the Kepler Mission observing one patch of the sky, an area around Cygnus.
Most of the east has part of the Hercules–Corona Borealis Great Wall in the deep sky, a giant galaxy filament that is the largest known structure in the observable universe, covering most of the northern sky.
Cygnus as depicted in Urania's Mirror, a set of constellation cards published in London c.
1825.
Surrounding it are Lacerta, Vulpecula and Lyra.
In Hinduism, the period of time （or Muhurta） between 4:24 AM to 5:12 AM is called the Brahmamuhurtha, which means "the moment of the Universe"; the star system in correlation is the Cygnus constellation.
This is believed to be a highly auspici...

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