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

M12 -- Globular Cluster

Object

Type

Globular Cluster

Constellation

Ophiuchus

Distance

16.44k light years

Magnitude

6.7

Size

16.0 arc-min

Image

Date

2012-04-17

Place

Texas Star Party

Exposure Data

RGB 30:30:30 mins @ -15C

R 6x5, G 6x5, B 6x5

Notes

All filters binned 1x1, Created Pseudo Luminance Layer from RGB

Equipment

Optics

Takahashi FSQ-106N

Focal Length

530 mm @f/5.0

Mount

Takahashi NJP

Camera

SBIG ST-10XME

Focuser

RoboFocus

Filters

CFW-10, Astrodon LRGB

Software

TheSky6, CCDSoft, CCDAutopilot4, CCDStack2+, PhotoShop CS6, eXcalibrator, PixInsight, BlurXTerminator

Reprocessed on 01/15/2023