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 Orion's Belt 
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Alnitak, Alnilam, and Mintaka, are the bright bluish stars from east to west (lower right to upper left) along the diagonal in this gorgeous cosmic vista. Otherwise known as the Belt of Orion, these three blue supergiant stars are hotter and much more massive than the Sun. They lie about 1,500 light-years away, born of Orion's well-studied interstellar clouds. In fact, clouds of gas and dust adrift in this region have intriguing and some surprisingly familiar shapes, including the dark Horsehead Nebula and Flame Nebula near Alnitak at the lower right. The famous Orion Nebula itself is off the right edge of this colorful star field. The well-framed, wide-field telescopic image spans about 6 degrees on the sky. [Text adapted from APOD]

Pubblications "Astronomy Now" Issue - January, 2022
Optics: Takahashi FSQ-106EDXIII F/3.6 383mm. - APO Refractor
Mount: AP Mach1 GTO
Camera: Canon 5D MkII - Baader Mod
Filters: OSC
Guiding Systems: Tecnosky 60/228 Guide Scope- SX Lodestar
Dates/Times: 20-22-23 December 2014
Location: Pragelato - Turin - Italy
Mosaic Details: 2x1 Frame
Exposure Detailse: OSC => 150 = > (30x5) ISO 1600 [num x minutes] For Each Frame
Cooling Details: Ambient -4C
Acquisition: BackyardEOS, TheSkyX
Processing: PixInsight, PS CS5
Mean FWHM: 3.65
SQM-L: 20.98 / 21.11