Hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  Iris Nebula  ·  NGC 7023
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The Iris Nebula NGC 7023  with a Dobson, 



    
        

            Mike Dobres
The Iris Nebula NGC 7023  with a Dobson
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The Iris Nebula NGC 7023 with a Dobson

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)
Getting plate-solving status, please wait...
The Iris Nebula NGC 7023  with a Dobson, 



    
        

            Mike Dobres
The Iris Nebula NGC 7023  with a Dobson
Powered byPixInsight

The Iris Nebula NGC 7023 with a Dobson

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Equipment

Imaging Telescopes Or Lenses
SkyWatcher Coma Corrector · SkyWatcher Dobson 14" GOTO
Imaging Cameras
ZWO ASI 294 mc pro
Filters
ZWO UV-IR cut
Accessories
PegasusAstro Falcon Rotator
Software
Startools · SynScan Pro Windows Mount Control SynScan · SharpCap

Acquisition details

Dates:
Nov. 3, 2021
Frames:
376x4" (25' 4")
Integration:
25' 4"
Avg. Moon age:
27.94 days
Avg. Moon phase:
2.84%

Basic astrometry details

Astrometry.net job: 5241331

RA center: 21h01m44s.6

DEC center: +68°1048

Pixel scale: 1.283 arcsec/pixel

Orientation: 188.169 degrees

Field radius: 0.411 degrees

Resolution: 1923x1273

Locations: Orchard, Montserrat, Valencia, Spain

Data source: Backyard

Description

1,400 light years from earth, this is probably my favorite DSO. A 6.8 magnitude reflection nebula in the constellation Cepheus.  The petals of the flowers are about 6 light years across and are  illuminated by the light of its magnitude 7.8 central star SAO 19158.

https://www.nasa.gov/image-feature/the-iris-nebula
https://en.wikipedia.org/wiki/Iris_Nebula

This is a 25 minute integration imaged  by live-stacking with Sharpcap with a 14 inch¨´ Dobson using a Falcon -derotator to counter field rotation.  The FITS file from this stack was then processed in Startools.

I'm pretty pleased how well the core is resolved. This is part of my journey, trying to push the limits of a GOTO Dobson designed for visual to obtain high quality astrophotography. Still a way to go, but its getting there!

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The Iris Nebula NGC 7023  with a Dobson, 



    
        

            Mike Dobres