IC 444 & IC 443

8 months 1 week ago #107511 by Kinch
IC 444 & IC 443 was created by Kinch
1st image of 2019 - started in 2018 though ;-)



Full info: www.kinchastro.com/jellyfish-nebula.html
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7 months 2 weeks ago #107553 by mykc
Replied by mykc on topic IC 444 & IC 443
Beautiful image, thank you.  Do you know what the blue object in the upper left is?  A faint planetary nebula?
MIke.

Celestron 280 mm f/10 SCT
CG-5 mount
Toolbox full of bits n' bobs
Thermal underwear
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7 months 2 weeks ago #107554 by Kinch
Replied by Kinch on topic IC 444 & IC 443
hi Mike & thanks.

In all honesty I don't know. I have seen it in other people's images. It shows up well in the Ha & OIII wavelengths but when I had the image plate solved in astrometry.net - there was no reference to it.

Perhaps someone on here can shed some light on it....and whether or not it has a name. Tomorrow I might try annotate the image via PixInsight.....see if it throws up anything.

Brendan.

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7 months 2 weeks ago #107557 by mykc
Replied by mykc on topic IC 444 & IC 443
Some Googling reveals that the object is Howell-Crisp 1, a probable planetary nebula that was only discovered in 2006!  Here's a link: www.narrowbandimaging.com/hc1_planetary_page.htm
Mike

Celestron 280 mm f/10 SCT
CG-5 mount
Toolbox full of bits n' bobs
Thermal underwear

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7 months 2 weeks ago #107558 by Kinch
Replied by Kinch on topic IC 444 & IC 443
Wow - that is amazing on two counts. One - great detective work - I am not sure how you tracked that one down.

The other reason.....I have spoken to Richard Crisp before via the FLI forum. (By the way....he does not like my images because I always remove the magenta from the stars in Hubble Pallet - narrow band images. He thinks that is against the Gold Standard set by the iconic Hubble image: Pillars of Creation). He has been of help in some ways to me (he is VERY knowledgeable about CCD technology) and in fact, because of a prior discussion with him & others, this particular image has more Green than any previous image of mine.

So - thanks Mike. I may risk his scorn (again) at my processing - just to show him the HC-1 in the image.

Brendan.

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7 months 2 weeks ago #107561 by mykc
Replied by mykc on topic IC 444 & IC 443
That's a great coincidence, small world Brendan!  I guess faint object like that could easily escape detection before really deep images, like yours, became possible.  HC-1 stands out beautifully in your image but is just a smudge in many earlier ones.  I wonder if there are many other small nebula waiting to be discovered, especially in areas of the sky that are less commonly imaged.

Mike

Celestron 280 mm f/10 SCT
CG-5 mount
Toolbox full of bits n' bobs
Thermal underwear

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7 months 2 weeks ago #107563 by Kinch
Replied by Kinch on topic IC 444 & IC 443
I am sure there are indeed plenty more objects out there ….just waiting :-) .  It was not so long ago that the Soap Bubble was discovered ...by an amateur.

I'll put in here a crop from the full resolution image (even the biggest one on my web site is not the full resolution.....it is a free site and I am limited on the size of the uploads.....but that is generally not a problem. 

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