Observation by John Hughes: IC 342 - The Hidden Galaxy

Uploaded by

Mr John William Hughes

Observer

John Hughes

Observed

2021 Nov 01 - 17:58

Uploaded

2021 Nov 07 - 11:37

Objects

IC342

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Constellation

Camelopardalis

Field centre

RA: 03^h46^m
Dec: +68°04'
Position angle: +0°11'

Field size

1°45' × 1°19'

Equipment

William Optics Z103 refractor
ZWO ASI1600mm Pro Cool camera
SkyWatcher EQ6R Pro mount
LRGB Chroma 1.25” filters

Exposure

Gain 139, Offset 30

Location

North Essex

Target name

IC 342 - The Hidden Galaxy

Title

IC 342 - The Hidden Galaxy

About this image

Located in the constellation Camelopardalis, IC 342 is a large intermediate spiral galaxy some 10 million light years away. Given its size and distance IC 342 should be nearly 2 magnitudes brighter but for its location relative to our own.

Only discovered in 1892 by William Denning, it is thought it avoided detection for so long because it is positioned in dusty areas near the galactic equator of our own Milky Way which made it difficult to observe. Viewing through this cosmic dust gives it the reddish brown hue.

IC 342 is thought to be undergoing further star formation with Hii regions visible in the core and the spiral arms.

Files associated with this observation

IC342_LRGB_Border_Resampled.jpg (1.8 MB)

Like this image

Alan Thomas, Nick Hewitt, Peter Tickner, Callum Potter, Martina McGovern

Comments

Grant Privett, 2021 Nov 09 - 20:31 UTC

Hi there. Lovely image. Could you indicate the exposure lengths used?

Mr John William Hughes, 2021 Nov 10 - 07:52 UTC

Hello Grant,

Here is the information you asked for;

120 second exposures in LRGB with subframes as follows 22;30;30;30.

300 second exposures in LRGB with subframes 40;20;18;2 (clouds intervened whilst capturing the blue channel.

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