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

M23 -- Open Cluster

Object

Type

Open Cluster

Constellation

Sagittarius

Distance

2,050 light years

Magnitude

5.5

Size

35 arc-min

Image

Date

2011-07-03

Place

Cheddar Ranch Observatory

Exposure Data

CRGB 60:45:45:45 mins @ -5 C

Clear 12x5, R 9x5, G 9x5, B 9x5 min

Notes

RGB Binned 2x2

Equipment

Optics

Takahashi FSQ-106N

Focal Length

530 mm @f/5.0

Mount

Takahashi NJP

Camera

SBIG ST-10XME

Focuser

Robo-Focus

Filters

CFW-10, AstroDon LRGB

Software

TheSky6, CCDSoft, CCDAutopilot 4, CCDStack2+, PixInsight, PhotoShop CS6

Reprocessed on 06/16/2023