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NGC 7023 - Iris Nebula

The Iris Nebula, also known as NGC 7023, 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 (Alphirk). It lies 1,300 light-years away and is six light-years across.

Location

Filipaioi Grevena 1-3 August 2019

Telescope

Altair Astro 115 F7 ED Triplet APO

EQ Mount

Sky-Watcher AZ EQ6-GT

Camera

QHY9 CCD, temp -25 C

Guiding

Guidind TS OAG, QHY5L II, PHD 2

Filters / Exposures

L 25x600 sec bin 1x, RG B 12x300 bin 2x

Total Exposure time

7,5 ~ hours

Software

Nebulosity 4, Maxim DL, Pixinshight, Photoshop CC

 

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