SH2-101, The Tulip Nebula, Hubble Palette ( Eric Coles (coles44) )

SH2-101, The Tulip Nebula, Hubble Palette

Imaging telescope or lens:RCOS 16" RC f/9

Imaging camera:SBIG STXL-11002/FW8G-STXL

Guiding telescope or lens:RCOS 16" RC f/9

Guiding camera:SBIG STXL-11002/FW8G-STXL

Software:Photoshop CS5, Pixinsight 1.8, Maxim DL Pro 5

Filters:Astrodon 3nm OIII, Astrodon H-alpha 3 nm, Astrodon 3nm SII

Resolution: 3438x2822

Dates:July 21, 2016, July 22, 2016, July 23, 2016, July 24, 2016, July 25, 2016

Frames:
Astrodon 3nm OIII: 12x1800" bin 1x1
Astrodon 3nm SII: 13x1800" bin 1x1
Astrodon H-alpha 3 nm: 37x1800" bin 1x1

Integration: 31.0 hours

Avg. Moon age: 18.45 days

Avg. Moon phase: 83.65%

Astrometry.net job: 1182708

RA center: 300.039 degrees

DEC center: 35.304 degrees

Pixel scale: 0.507 arcsec/pixel

Orientation: 127.054 degrees

Field radius: 0.313 degrees

Locations: Sierra Remote Observatories, Shaver Lake, California, United States

Here is the explanation of The Tulip Nebula from a recent APOD.

Popularly called the Tulip Nebula the glowing cloud of interstellar gas and dust is also found in the 1959 catalog by astronomer Stewart Sharpless as Sh2-101. About 8,000 light-years distant and 70 light-years across the complex and beautiful nebula blossoms at the center of this composite image. Red, green, and blue hues map emission from ionized sulfur, hydrogen, and oxygen atoms. Ultraviolet radiation from young, energetic stars at the edge of the Cygnus OB3 association, including O star HDE 227018, ionizes the atoms and powers the emission from the Tulip Nebula. HDE 227018 is the bright star very near the blue arc at the cosmic tulip's center. Glowing across the electromagnetic spectrum, microquasar Cygnus X-1 and a curved shock front created by its powerful jets lie toward the top and right.