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

M7 -- Ptolemy's Cluster

Object

Type

Open Cluster

Constellation

Scorpius

Distance

980 light years

Magnitude

3.3

Size

80.0 arc-min

Image

Date

2012-04-17

Place

Texas Star Party

Exposure Data

RGB 30:30:40 mins @ -15C

R 6x5, G 6x5, B 8x5

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