The Jellyfish (aka God's bath sponge) (Don Walters)

Celestial hemisphere: Northern · Constellation: Gemini (Gem) · Contains: IC 443

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The Jellyfish (aka God's bath sponge)

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The Jellyfish (aka God's bath sponge)

I saw this posted elsewhere... this image looks like a bath puff in space! Hilarious!

Shot over 4 nights in January 2017. These were the only clear nights we had at all this month, which was pretty frustrating. I captured a lot more OIII in an attempt to smooth out the noise, but it was pretty difficult. I think I have some fixed pattern noise that is looking to be unavoidable.

Unlike my previous photos, this time I decided to accentuate the blues instead of giving it that predominantly rusty-red color, so to get that I used H-alpha for the blue channel, and let OIII provide the red channel. And of course I synthesized a green channel using a combo of the two. I kept saturation to a minimum because it started to look unnatural. I also skipped sharpening because it gave the stars a poor appearance and worsened the noise quite a bit.

Original
B
C
Final
D

B

Description: Eliminated sharpening and saturation. Less is more.

Uploaded: ...

C

Description: Reprocessed (overhauled). This time, I did a little saturation and used better masks to avoid screwing things up.

Uploaded: ...

D

Description: Darkened background.

Uploaded: ...

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Status	Basic success
Started	...
Astrometry.net job	1436170
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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The Jellyfish (aka God's bath sponge)

The Jellyfish (aka God's bath sponge)

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Image Index:

Contribution Index (beta):

The Jellyfish (aka God's bath sponge)

The Jellyfish (aka God's bath sponge)

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Acquisition details

Description

Comments

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C

D

Sky plot

Histogram

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