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Bubble in Hercules, Abell39/PK47.


johnh

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SPX350 F4.53, EQ6mod, ATK-16HR.

This one is never seems to be imaged - 8 degrees West of zeta Hercules at mag 12.9 radiates entirely in O3 at 3' wide. I used a Astronomik UHC filter with UV/IR block to get very good contrast which UV/IR by itself did not give as it was too faint and noisey.

I did not get any green so I used O3 for green binned2x2. This planetary shows little red and almost no H alpha. I could not find many amature images of this one on the Net as no one bothers with it - Shame!

LRGB=200/30/40/30mins, 5min subs with O3 as green RGB Binned2x2.

Thanks, JohnH.

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I tried finding this with my 16" LB. I tried for ages and just couldn't see it. I noted I needed a O111 filter.

At least I now know what it looks like.

Awesome shot John.

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I wonder if those stars inside the bubble are a part of the bubble similar to the centre star in M57. Or is the bubble transparant and these are background stars.

I would imagine it's the latter.

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Amazing.. never heard of or seen it. What's so great about this hobby is there's always a surprise or something new around the corner. That deffo looks like the cetral star... its too perfectly placed not to be.

Matt

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Thanks guys for kind comments, this bubble did come out very well owing to UHC filter and O3. The Central star is mag 15.7 and shows a glorious blue colour which I was pleased with as I had no green filter so I used the O3 instead to give more bubble structure.

There is an oval large star right of blue central star in the bubble which is actually a background galaxy.

Thanks, JohnH.

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Ok, that is my next shot and at mag 12.5 it will come up easely I think. But for the color I will need to go to my dark location.

Great image congratulations :icon_rolleyes:. I love these not so imaged objects and this one is beautiful.

Regards,

paulo

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Well you pulled that one out of the hat John.

What a weird and wonderful object. Looks like something the Starship Enterprise has encountered. Shields Up Mr Spock:D

It looks almost like a mirror under a knifedge test, with a bright diffraction ring around it.

Great picture.

Ron.:):D

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