Hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  4 Cep  ·  6 Cep  ·  7 Cep  ·  8 bet Cep  ·  Alfirk  ·  Cepheus  ·  NGC 7023  ·  NGC6951  ·  NGC6952  ·  NGC7023  ·  Sh2-136  ·  T Cep  ·  The star 4Cep  ·  The star 6Cep  ·  The star 7Cep  ·  The star Alfirk (βCep)  ·  VdB139  ·  VdB141
Getting plate-solving status, please wait...
Iris Ultra Wide, 



    
        

            Roberto Colombari
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Iris Ultra Wide

Getting plate-solving status, please wait...
Iris Ultra Wide, 



    
        

            Roberto Colombari
Powered byPixInsight

Iris Ultra Wide

Technical card


Astrometry.net job: 1422179

RA center: 21h 0' 22"

DEC center: +67° 50' 39"

Pixel scale: 14.704 arcsec/pixel

Orientation: 87.361 degrees

Field radius: 4.608 degrees


Resolution: 1824x1329

Description

Iris Ultra Wide

The data have been captured, remotely, with our Rokinon 135mm and QSI583.

The Iris nebula has been enriched with data from a previous image with a longer focal length (Takahashi FSQ106 and QSI683).

L: 33x600s @ F2.8

RGB: (30, 27, 2x300s @ F2.8

Copyright: R. Colombari / DSW

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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.[1] 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 (Alphirk). It lies 1,300 light-years away and is six light-years across.[2]

Source: Wikipedia

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Iris Ultra Wide, 



    
        

            Roberto Colombari

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