Hemisphere:  Northern  ·  Constellation: Monoceros (Mon)  ·  Contains:  12 Mon  ·  NGC 2239  ·  NGC 2244  ·  NGC2237  ·  NGC2238  ·  NGC2239  ·  NGC2244  ·  NGC2246  ·  Rosette nebula  ·  Sh2-275  ·  The star 12Mon
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Rosette nebula in narrowband, 


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Imaging telescopes or lenses: William Optics GT81

Imaging cameras: ZWO ASI 1600 MM Cooled Pro

Mounts: Paramount MX +

Guiding telescopes or lenses: Orion 30mm Ultra Mini guide scope

Guiding cameras: ZWO ASI120MM Mini

Software: Main Sequence Software Seqence Generator Pro 3  ·  PHD2  ·  pixinsight 1.85

Accessory: SkyShed Roll-off  ·  Starizona Microtouch Autofocuser  ·  Interactive Astronomy SkyRoof  ·  Interactive Astronomy Sky Alert

Dates:Jan. 23, 2020

Frames: 81x300"

Integration: 6.8 hours

Avg. Moon age: 28.20 days

Avg. Moon phase: 2.00%

Astrometry.net job: 3208179

RA center: 6h 31' 57"

DEC center: +4° 58' 48"

Pixel scale: 1.758 arcsec/pixel

Orientation: -48.905 degrees

Field radius: 0.913 degrees

Resolution: 2616x2668

Locations: JRO - Home Observatories, Milford, New Jersey, United States

Data source: Backyard


One of my favorite targets in narrowband, the Rosette nebula. This is one of the first images from my William Optics GTF81 that is piggyback on my RASA with a .8x reducer leveraging the ZWO ASI 1600MM with filters. Currently setup for wide field narrowband, I use this any time of the month.


Sky plot

Sky plot


Rosette nebula in narrowband, 


            Tom's Pics