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Hot, young stars and cosmic pillars of gas and dust seem to crowd into NGC 7822. At the edge of a giant molecular cloud toward the northern constellation Cepheus, the glowing star forming region lies about 3,000 light-years away. Within the nebula, bright edges and dark shapes stand out in this colorful skyscape. The image includes data from narrowband filters, mapping emission from atomic oxygen, hydrogen, and red,blue and green filters. The atomic emission is powered by energetic radiation from the central hot stars. Their powerful winds and radiation sculpt and erode the denser pillar shapes and clear out a characteristic cavity light-years across the center of the natal cloud. Stars could still be forming inside the pillars by gravitational collapse but as the pillars are eroded away, any forming stars will ultimately be cutoff from their reservoir of star stuff. This field of view spans over 40 light-years at the estimated distance of NGC 7822 [Text adapted from APOD]

Pubblications "Flickr" Explore - August 1, 2023
Optics: Takahashi FSQ-106EDXIII F/5 530mm. - APO Refractor
Mount: AP Mach1 GTO
Camera: Moravian G4-16000 Mark II
Filters: Astrodon E Series Gen II LRGBH 50mm squared
Guiding Systems: SX Lodestar
Dates/Times: 2020-2021
Location: Pragelato - Turin / Italy
Exposure Details: H:R:G:B => 360:60:50:50 = > (24x15):(12x5):(10x5):(10x5) [num x minutes]
Cooling Details: -25 C
Acquisition: Voyager Astrophotography Automation
Processing: CCDStack2+, PS CC, StarXTerminator
Mean FWHM: 1.21 / 2.05
SQM-L: 20.21