Hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  NGC 7023
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Iris Nebula (NGC 7023, Caldwell 4) with LBN 468, 475 and 483, in Cepheus and Draco, 



    
        

            Steven Bellavia
Iris Nebula (NGC 7023, Caldwell 4) with LBN 468, 475 and 483, in Cepheus and Draco
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Iris Nebula (NGC 7023, Caldwell 4) with LBN 468, 475 and 483, in Cepheus and Draco

Getting plate-solving status, please wait...
Iris Nebula (NGC 7023, Caldwell 4) with LBN 468, 475 and 483, in Cepheus and Draco, 



    
        

            Steven Bellavia
Iris Nebula (NGC 7023, Caldwell 4) with LBN 468, 475 and 483, in Cepheus and Draco
Powered byPixInsight

Iris Nebula (NGC 7023, Caldwell 4) with LBN 468, 475 and 483, in Cepheus and Draco

Technical card

Imaging telescopes or lenses: Stellarvue SV080ST-25SV

Imaging cameras: Canon EOS SL1

Mounts: Celestron AVX Mount

Guiding telescopes or lenses: Agena Astro 50mm f/3.9 Guidescope

Guiding cameras: ASI224MC

Focal reducers: Televue 0.8x focal reducer / field flattener

Software: IDEIKI AstroPhotography Tool (APT)  ·  Stark Labs Nebulosity 4.2  ·  Digital Photo Professional  ·  PHD2 Guiding


Dates:Oct. 21, 2017

Frames: 82x240" ISO1600

Integration: 5.5 hours

Darks: ~30

Flats: ~30

Bias: ~30

Avg. Moon age: 1.61 days

Avg. Moon phase: 2.91%

Bortle Dark-Sky Scale: 1.00

Temperature: 50.00


Basic astrometry details

Astrometry.net job: 1796459

RA center: 20h 50' 35"

DEC center: +67° 40' 30"

Pixel scale: 2.331 arcsec/pixel

Orientation: 359.506 degrees

Field radius: 1.906 degrees


Resolution: 5036x3052

Data source: Traveller

Description

The iris nebula, NGC 7023, Caldwell 4, and the interstellar dust clouds LBN 468, 475 and 483, that extend from Cepheus, into Draco.

Comments

Sky plot

Sky plot

Histogram

Iris Nebula (NGC 7023, Caldwell 4) with LBN 468, 475 and 483, in Cepheus and Draco, 



    
        

            Steven Bellavia