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Sh2-101 Tulip Nebula, 


            Marco Prelini
Sh2-101 Tulip Nebula
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Sh2-101 Tulip Nebula

Technical card

Imaging telescopes or lenses: Sky-Watcher 200/1000 PDS

Imaging cameras: ZWO ASI 294MC Pro

Mounts: Sky-Watcher AZ EQ6-GT

Guiding telescopes or lenses: Artesky Ultraguide 60/240 mm

Guiding cameras: ZWO ASI 120 MM Mini

Focal reducers: Baader MPCC Mark III

Software: Adobe Photoshop CC  ·  Sequence Generator Pro  ·  PixInsight

Filters: Baader OIII 2.0" 7nm CCD  ·  Baader Ha 2" 7nm CCD

Dates:April 3, 2020April 4, 2020

Baader Ha 2" 7nm CCD: 28x480" (gain: 120.00) -10C bin 1x1
Baader OIII 2.0" 7nm CCD: 17x480" (gain: 120.00) -10C bin 1x1

Integration: 6.0 hours

Darks: ~31

Flats: ~31

Flat darks: ~31

Avg. Moon age: 10.06 days

Avg. Moon phase: 76.83%

Bortle Dark-Sky Scale: 8.00

Mean SQM: 18.50

Temperature: 6.50

Basic astrometry details job: 3388248

RA center: 20h 0' 22"

DEC center: +35° 22' 30"

Pixel scale: 0.946 arcsec/pixel

Orientation: 186.041 degrees

Field radius: 0.646 degrees

Resolution: 4075x2750

Locations: Home Backyard, Meda, Milano, Italy

Data source: Backyard


HII region located about 6000 light years away, is part of the large swan nebular complex. Subject that I honestly have always underestimated, instead it reserves many details and interesting structures to see.
Trivia: inside the image is also taken a microquasar, Cygnus X-1, the first subject officially recognized as containing a black hole (it is visible as a normal bright star in the left corner of the tulip).



Marco Prelini
License: None (All rights reserved)

Sky plot

Sky plot


Sh2-101 Tulip Nebula, 


            Marco Prelini

In these public groups

Imagers of Italy
Cloudy Nights