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Region um Sadir und Deneb im Sternbild Schwan, 





    
        

            Hans-Peter Olsche...

Region um Sadir und Deneb im Sternbild Schwan

Technical card

Imaging telescope or lens:Canon EF 4-5,6/ 75-300 mm III EOS Telezoom

Imaging camera:Canon EOS 700D

Mount:NexStar 6/8SE Montierung

Guiding telescope or lens:Celestron NexStar 6SE GOTO

Resolution: 2600x1733

Dates:July 7, 2015

Frames: 22x60" ISO1600

Integration: 0.4 hours

Darks: ~5

Flats: ~6

Bias: ~10

Avg. Moon age: 20.69 days

Avg. Moon phase: 65.31%

Astrometry.net job: 683881

Locations: Home, Wassertrüdingen, Bayern, Germany

Description

Deneb ist der hellste Stern (α Cygni) im Sternbild Schwan. Er bildet zusammen mit Wega und Altair das Sommerdreieck. Mit einer scheinbaren Helligkeit von 1,2 mag ist Deneb ist der 19.-hellste Stern am Nachthimmel und zusammen mit Eta Carinae der hellste bislang bekannte Stern in unserer Milchstraße im sichtbaren Licht. Seine Entfernung beträgt etwa 3.200 Lichtjahre.
Sadir (Gamma Cygni) ist ein Stern im Sternbild Schwan. Der Stern ist auch unter seinem Eigennamen Sadr bekannt und hat eine scheinbare Helligkeit von 2,2 mag. Seine Entfernung beträgt ca. 1.500 Lichtjahre.
Deneb (α Cygni) is the brightest star in the constellation of Cygnus and one of the vertices of the Summer Triangle. It is the 19th brightest star in the night sky, with an apparent magnitude of 1.25, a blue white supergiant. Deneb is also one of the most luminous nearby stars. However, its exact distance (and hence luminosity) has been difficult to calculate, so it is somewhere between 55.000 and 196.000 times as luminous as the Sun. The distance is about 3.200 light years.
Sadir (γ Cygni) is the Bayer designation for a star in the northern constellation Cygnus, forming the intersection of an asterism of five stars called the Northern Cross. It has the traditional name Sadr. Compared to the Sun this is an enormous star, with 12 times the Sun's mass and about 150 times the Sun's radius. The distance is about 1.500 light years.

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HansPeter1961
Hans-Peter Olsche...
License: None (All rights reserved)
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Region um Sadir und Deneb im Sternbild Schwan, 





    
        

            Hans-Peter Olsche...