Contains: NGC 6231, The star ζ2Sco, The star ζ1Sco
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Gum 55

Technical card

Resolution: 4517x3611

Dates: June 24, 2017

Frames: 37x300"

Integration: 3.1 hours

Avg. Moon age: 0.45 days

Avg. Moon phase: 0.23% job: 1961415

RA center: 253.723 degrees

DEC center: -42.755 degrees

Pixel scale: 2.327 arcsec/pixel

Orientation: 181.675 degrees

Field radius: 1.869 degrees

Locations: Bellatrix Observatory, Oliveira, Brazil


This is a reprocessing made by my friend Roberto Colombari using the data I had acquired in June 2017. South is up in the image. The Wolf dark nebula appears in the upper part of the frame, just left of the center. Thanks to my friend João de Barros.



Luiz Duczmal

Sky plot

Sky plot


Gum 55, 


        Luiz Duczmal