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Contains:  27 b01 Cyg, B144, B146, B147, NGC 6871, NGC6871, PK070+02.1, Sh2-101, The star 27Cyg
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Flower in a Cosmic Field (Sh2-101 and surrounding nebula), 


            Gary Lopez
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Flower in a Cosmic Field (Sh2-101 and surrounding nebula)

Imaging telescopes or lenses: William Optics GT71 71mm f/5.9 Apo Refractor

Imaging cameras: ZWO ASI1600MM Cooled PRO

Mounts: Orion Atlas EQ-G

Guiding telescopes or lenses: Orion 50mm Guide Scope with helical focusing

Guiding cameras: Lacerta M-Gen II Autoguider

Focal reducers: William Optics 0.8X Field Flattener

Software: Adobe Lightroom CC  ·  Photoshop CC  ·  Main Sequence Software Sequence Generator Pro, v3.0  ·  Pleaides PixInsight Core 1.8

Filters: Astrodon OIII 3nm-31mm  ·  Astrodon SII 3nm-31mm  ·  Astrodon Ha 3nm-31mm

Dates:Aug. 5, 2018Aug. 6, 2018

Astrodon Ha 3nm-31mm: 125x180" (gain: 139.00) -15C bin 1x1
Astrodon OIII 3nm-31mm: 32x180" (gain: 139.00) -15C bin 1x1
Astrodon SII 3nm-31mm: 43x180" (gain: 139.00) -15C bin 1x1

Integration: 10.0 hours

Darks: ~30

Bias: ~50

Avg. Moon age: 23.42 days

Avg. Moon phase: 36.71%

Bortle Dark-Sky Scale: 4.00 job: 2735022

RA center: 20h 3' 28"

DEC center: +35° 16' 47"

Pixel scale: 2.303 arcsec/pixel

Orientation: 41.135 degrees

Field radius: 1.798 degrees

Resolution: 4495x3371

Locations: Monterey Pines Observatory, Monterey, California, United States

Data source: Backyard


Tulip Nebula is located 6,000 light-years away from Earth and can be found in the constellation Cygnus. It was discovered in 1959 by astronomer Stewart Sharpless and is numbered Sh2-101 in his catalog. The ultraviolet radiation from a young energetic O star, HDE 227018, ionizes the sulfur, hydrogen, oxygen, and other gases that compose the nebula and powers the Tulip's beautiful glow. HDE 227018 can be seen glowing brilliantly in the middle of the nebula, near the small blue arc. The Tulip Nebula is also in close proximity to micro quasar Cygnus X-1, which was one of the first suspected black holes.

I have processed these data a dozen time, looking for the right treatment to highlight the beauty of the Tulip Nebula against the backdrop of the gas and dust of Cygnus. This is my latest attempt.



Gary Lopez
License: None (All rights reserved)

Sky plot

Sky plot


Flower in a Cosmic Field (Sh2-101 and surrounding nebula), 


            Gary Lopez