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Contains:  NGC 7822
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Sh2-171 - An Autumn Beauty, 





    
        

            Ivaylo Stoynov
Sh2-171 - An Autumn Beauty

Sh2-171 - An Autumn Beauty

Technical card

Resolution: 1483x1200

Dates:Oct. 5, 2018Oct. 6, 2018

Frames:
Astrodon HII-3nm: 33x600" -40C bin 1x1
Astrodon O-III 3nm: 23x600" -40C bin 1x1

Integration: 9.3 hours

Avg. Moon age: 26.06 days

Avg. Moon phase: 13.26%

Temperature: 5.00

Astrometry.net job: 2316324

RA center: 0.985 degrees

DEC center: 67.170 degrees

Pixel scale: 3.574 arcsec/pixel

Orientation: 104.228 degrees

Field radius: 0.947 degrees

Locations: Nedelkovo, near Sofia, Bulgaria

Data source: Backyard

Description

Sh2-171 (AKA NGC 7822) is a young star forming complex in the constellation of Cepheus, 2600-3200ly away from Earth. The nebula is included in the Sharpless catalog while the young star cluster located in the upper left corner close the dark nebula is cataloged as Berkeley 59. The star from this cluster pointed by the thin dark arrow with approximate position at 10 a clock, on the border of the dark lagoon, is BD+66 1673 is considered as one of the hottest stars within 1 kpc of the Sun. Its temperature is around 45000 K and a luminosity ~100,000 times that of the Sun. It is one of the primary energy sources that lit the nebula and is forming the pillars of creation visible in the nebula. They are regions of star formation in which the proto stars create enough energy winds to resist to the powerful stellar winds of BD+66 1673.

Comments

Author

Yoddha
Ivaylo Stoynov
License: None (All rights reserved)
4775
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  • Sh2-171 - An Autumn Beauty, 





    
        

            Ivaylo Stoynov
    Original
  • Final
    Sh2-171 - An Autumn Beauty, 





    
        

            Ivaylo Stoynov
    B

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Sh2-171 - An Autumn Beauty, 





    
        

            Ivaylo Stoynov