Deneb, one of the brightest stars in the night sky, is a luminous supergiant located approximately 2,600 light-years away in the constellation Cygnus. As the anchor of the Summer Triangle and the tail of the celestial Swan, Deneb shines with a magnitude of 1.25, making it visible even in light-polluted areas. Its staggering luminosity—nearly 200,000 times that of the Sun—places it among the most luminous stars known, marking it as a key point of interest for astronomers.

Captured from Annecy, France, during a brief window before a major target rose, Deneb's brilliance dominates the field, its blue-white light hinting at its surface temperature of about 8,500 K. Deneb's role as the ionizing source for the nearby North America and Pelican Nebulae adds to its allure, emphasizing its influence on the surrounding interstellar medium. Even as an impromptu target, this celestial gem reveals the grandeur of the cosmos with stunning clarity.

Image Description and Details : Details: Deneb is a first-magnitude star in the constellation of Cygnus, the swan. It is one of the vertices of the asterism known as the Summer Triangle and the "head" of the Northern Cross. It is the brightest star in Cygnus and the 19th brightest star in the night sky, with an average apparent magnitude of +1.25. This area lies in the plane of the Milky Way and is very rich in emission nebulae. Right down you can see NGC 7000/The North America Nebula, IC 5067/The Pelican Nebula, NGC 6989 an open cluster, 57 Cygni, IC 5068. Just a bit below left to Deneb is 55 Cygni and at the bottom left is IC 5076.

Exif : L = 50 x 180 seconds , R = 46 x 180 seconds , G = 46 x 180 seconds , B = 46 x 180 seconds , f/3.6 (with 0.73x focal reducer) , 382 mm

Equipment: FLI PL16083 camera, Takahashi FSQ-106ED telescope, Paramount MX+ mount

Filters: Astrodon LRGB 2GEN

Softwares used: Deep Sky Stacker, PixInsight, Photoshop

Copyright: Diptiman Nandy

Image Description and Details : Exposure: per photo approx. 40 x 30 sec.Calibration: Darks / Flats / DarkFlatsMount: Skywatcher EQ6-R PROTelescope: Lacerta Fotonewton 250/1000Corrector: Lacerta GPU coma correctorFilter: Astronomik L2 UV-IR Block 2 ″Camera: QHY268c @ Gain 0 at -15 ° CGuiding: ZWO OAG with ASI 120mm-s and PHD2Software: APP / Photoshop CC



Copyright Information: Daniel Nimmervoll