All Images Copyright Rod Gallagher                                      Click on image to see full size

NGC 7023 -- Iris Nebula

Object

Type

Reflection Nebula

Constellation

Cepheus

Distance

1,300 light years

Magnitude

6.8

Size

18 x 18 arc-min

Notes

Also known as Caldwell 4

Image

Date

2010-08-13

Place

Comanche Springs

Exposure Data

CRGB 100:60:60:60 mins @ -5 C

C 20x5, R 12x5, G 12x5, B 12x5 min

Notes

All filters binned 1x1

Equipment

Optics

Takahashi TOA-150

Focal Length

1100 mm @f/7.3

Mount

Paramount ME

Camera

SBIG ST-10XME

Focuser

RoboFocus

Filters

CFW-10, Astrodon CRGB

Software

TheSky6, CCDSoft, CCDAutopilot4, CCDStack 2+, PixInsight, PhotoShop CS6

Reprocessed on 07/10/2023