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

M100 -- Spiral Galaxy

Object

Type

Spiral Galaxy

Constellation

Coma Berenices

Distance

55M light years

Magnitude

9.3

Size

7.4 x 6.3 arc-min

NGC 4322 is the Galaxy to the upper left of M100

NGC 4328 is the Galaxy to the upper right of M100

Image

Date

2025-06-07

Place

Bixhoma Observatory

Exposure Data

CRGB 27:14:22:21 mins @ -5C

C 27x1, R 14x1, G 22x1, B 21x1 min

Notes

RGB filters binned 2x2

Equipment

Optics

Meade 12" RCX-400

Focal Length

2438 mm @f/8

Mount

RCX-400 on Milburn wedge

Camera

SBIG ST-10XME w/AO7

Filters

CFW-10, Astrodon CRGB

Focuser

JMI Focuser with RoboFocus

Rotator

OPTEC 3" Pyxis Rotator

Software

TheSkyX, FocusMax5, CCDAutopilot5, CCDStack, PixInsight, PhotoShop CS6