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Contains:  NGC 7023
Getting plate-solving status, please wait...
Iris Nebula close-up (NGC7023) in LRGB, 


            Jose Carballada
Iris Nebula close-up (NGC7023) in LRGB
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Iris Nebula close-up (NGC7023) in LRGB

Imaging telescopes or lenses: Altair Astro RC250-TT 10" RC Truss Tube

Imaging cameras: ZWO ASI1600MM-Cool

Mounts: Astro-Physics Mach-1 GTO CP4

Guiding telescopes or lenses: Celestron OAG Deluxe

Guiding cameras: QHYCCD QHY5III174

Focal reducers: Riccardi Reducer/Flattener 0.75x

Software: Pleiades Astrophoto PixInsight  ·  Astro-Physics AAPC  ·  Seqence Generator Pro

Filters: Astrodon R Gen.2 E-series 36mm  ·  Astrodon G Gen.2 E-series 36mm  ·  Astrodon B Gen.2 E-series 36mm  ·  Astrodon L Gen.2 E-series 36mm

Accessory: ZWO EFW  ·  MoonLite NiteCrawler WR30

Dates:June 1, 2019

Astrodon B Gen.2 E-series 36mm: 41x180" (gain: 75.00) -20C bin 1x1
Astrodon G Gen.2 E-series 36mm: 40x180" (gain: 75.00) -20C bin 1x1
Astrodon L Gen.2 E-series 36mm: 177x180" (gain: 75.00) -20C bin 1x1
Astrodon R Gen.2 E-series 36mm: 42x180" (gain: 75.00) -20C bin 1x1

Integration: 15.0 hours

Avg. Moon age: 27.55 days

Avg. Moon phase: 4.36% job: 2779215

RA center: 21h 1' 42"

DEC center: +68° 9' 43"

Pixel scale: 1.007 arcsec/pixel

Orientation: 270.122 degrees

Field radius: 0.399 degrees

Resolution: 2318x1665

Locations: AAS Montsec, Àger, Lleida, Spain

Data source: Own remote observatory

Remote source: Non-commercial independent facility


Iris Nebula is dramatic reflection nebula in the constellation Cepheus.
With plenty of dark interstellar dust is illuminated by a central hot star named SAO 19158 which is 10 times the mass of our sun.

It lies 1,300 light-years away and is six light-years across.

It was integrated only 15 hours, 50% best frames of the total valid frames taken between May and June of 2019.

PD: I am glad to check my improvements when I compare to this other capture from three years ago. :D



Jose Carballada
License: Attribution-NonCommercial-ShareAlike Creative Commons


  • Iris Nebula close-up (NGC7023) in LRGB, 


            Jose Carballada
  • Final
    Iris Nebula close-up (NGC7023) in LRGB, 


            Jose Carballada


Description: fixed some patterns on the left side

Sky plot

Sky plot


Iris Nebula close-up (NGC7023) in LRGB, 


            Jose Carballada