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

NGC 4631 -- Whale Galaxy

Object

Type

Spiral Galaxy

Constellation

Canes Venatici

Distance

30M light years

Magnitude

9.8

Size

15.5 x 2.7 arc-min

Notes

Also known as Caldwell 32

NGC 4627 is the smaller galaxy below NGC 4631

Image

Date

2009-06-01

Place

Bixhoma Observatory (H33)

Exposure Data

L 10 mins @ -10C

L 10x1

Notes

All filters binned 2x2

Equipment

Optics

Meade 12" RCX-400

Focal Length

1500 mm @f/5 (f/8 with 6.3 focal reducer)

Mount

RCX-400 on Milburn Wedge

Camera

SBIG ST-8XME w/AO7

Focuser

JMI Focuser with Robofocus

Filters

CFW-8, Astrodon LRGB

Software

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

Reprocessed on 07/19/2023