Observation by Des Middlemass: Local Group - Cascopea IV

Uploaded by

Des Middlemass

Observer

Des Middlemass

Observed

2026 Jul 10 - 00:00

Uploaded

2026 Jul 27 - 17:39

Objects

IC10

Planetarium overlay

Enable overlay
Show stars
Label stars
Show deep sky objects
Label deep sky objects
Show constellation boundaries
Show constellation sticks
Show constellation labels
Show RA/Dec grid

Constellation

Cassiopeia

Field centre

RA: 00^h20^m
Dec: +59°17'
Position angle: -175°43'

Field size

0°28' × 0°18'

Equipment

Celestron Edge HD 9.25 FL 2350mm UVIR filter
Optolong L-Ultimate Dual Bnd 3nm

Exposure

8 hours (300 sec subs)

Location

Villetoureix (Bortle 4)

Target name

Cascopea IV

Title

Local Group - Cascopea IV

About this image

An RGB and Ha image of the only starburst galaxy in the local group.

I have not adjusted any colours in this image. The milky brown colour of the galaxy is caused by extinction (reddening) both by internal dust within IC10 itself and also because it sits behind dense dust layers in the Milky Way. Total line of sight reddening is estimated at E(B-V) ≈ 0.95 and 1.15 mag.

Image taken over 3 nights.

Files associated with this observation

IC10_Cascopea IV_LG_starburst_galaxy_2320mm_HaRGB_8hrs.jpg (1.2 MB)

Like this image

Callum Wingrove

Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of work by third parties is expressly forbidden without the consent of the copyright holder. By submitting images to this online gallery, you grant the BAA permission to reproduce them in any of our publications.

Registered charity no. 210769
Registered company no. 117572

For more information including contact details, click here.

Our Terms of Use are here.

Our Privacy Policy is here.