Hemisphere:  Northern  ·  Contains:  NGC 7023

Image of the day 09/27/2015

Getting plate-solving status, please wait...
    NGC 7023 - Iris Nebula, 


            Paddy Gilliland
    NGC 7023 - Iris Nebula
    Powered byPixInsight

    NGC 7023 - Iris Nebula

    Technical card

    Imaging telescopes or lenses: Takahashi FSQ 106EDXIII

    Imaging cameras: QSI 683WSG-8 OAG QSI 683

    Mounts: Paramount MyT

    Guiding telescopes or lenses: Takahashi FSQ 106EDXIII

    Guiding cameras: QSI 683WSG-8 OAG QSI 683

    Software: Pixinsight 1.8

    Filters: Astrodon Red  ·  Astrodon Luminance  ·  Astrodon Blue  ·  Astrodon Green

    Dates:Sept. 12, 2015Sept. 15, 2015

    Astrodon Blue: 16x900" bin 1x1
    Astrodon Green: 18x900" bin 1x1
    Astrodon Luminance: 38x900" bin 1x1
    Astrodon Red: 17x900" bin 1x1

    Integration: 22.2 hours

    Avg. Moon age: 15.40 days

    Avg. Moon phase: 2.46%

    Basic astrometry details

    Astrometry.net job: 781570

    RA center: 21h 0' 45"

    DEC center: +67° 42' 14"

    Pixel scale: 2.094 arcsec/pixel

    Orientation: -90.003 degrees

    Field radius: 1.211 degrees

    Resolution: 3326x2504

    Locations: Deep Sky West Remote Observatory (DSW), Rowe, New Mexico, United States


    This is my second look at the Iris Nebula having first attempted soon after getting my first set up. I struggled then to get any colour in the darker areas but found after a years experience this was far easier to come by. As always excellent data really helped.
    For this version I have avoided simply trying to stretch the areas of dim nebulosity, instead I have tried to work on a image with a little more depth and range. I have also tried to maximise the detail in the Iris area itself and capture some of the more subtle detail and colouring.

    The Iris Nebula, also NGC 7023 and Caldwell 4, is a bright reflection nebula and Caldwell object in the constellation Cepheus. NGC 7023 is actually the cluster within the nebula, LBN 487, and the nebula is lit by a magnitude +7 star, SAO 19158. It shines at magnitude +6.8. It is located near the Mira-type variable star T Cephei, and near the bright magnitude +3.23 variable star Beta Cephei. It lies 1,300 light-years away and is six light-years across. (Wikipedia)

    Hope you like....



    Paddy Gilliland
    License: None (All rights reserved)

    Sky plot

    Sky plot


    NGC 7023 - Iris Nebula, 


            Paddy Gilliland