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snowball and hourglass, 


snowball and hourglass

snowball and hourglass

Technical card

Resolution: 3345x2471

Dates:Aug. 29, 2015

Frames: 60x690"

Integration: 11.5 hours

Avg. Moon age: 14.44 days

Avg. Moon phase: 99.88% job: 887764

RA center: 307.333 degrees

DEC center: 37.138 degrees

Pixel scale: 1.117 arcsec/pixel

Orientation: -178.291 degrees

Field radius: 0.645 degrees

Locations: my lovely garden, near Vienna, Austria


A little east of Sadr in Cygnus, there is this wondrful field containing vdB133 the snowball and Sh2-106 the hourglass. Striking is the color contrast between reflection and emission nebula. The hourglass is a bipolar structure of star formation, and pictures with really good resolution reveal an amazing wealth of fine structure visible. We are looking though a gap right into the star breeding chamber.
LRGBHa with 10" f/4 Lacerta Newton



License: None (All rights reserved)

Sky plot

Sky plot


snowball and hourglass,