8-Burst, NGC2440 and Ghost of Jupiter PN's

[John Hothersall]

SPX350 F9.1, ASI290 uncooled, Baader RGB Astronomik UHC filters.

NGC 2440 is a strange PN as its core is searingly bright but the wings are quite faint so it needed a good stretching. 0.38"/pixel

8-Burst nebula is always a beauty rgb arrangement seemed to work best. 0.38"/pixel.

The Ghost of J was also very bright needing 2 exposures shot at full resolution in good seeing. 0.19"/pixel.

The ASI290 at 20-30 degrees does not need dark frames at all it would seem which removes a hassle. There is a brighter bottom of the image when binned which can be removed with flats or gradient removal software.

These images are way better than my previous efforts which I though were pretty good.

Regards, John.

[Placidus]

Beautiful images! The Eight Burst is especially fine.

The Ghost of Jupiter looks like a watch showing ten minutes to six. The time has not changed in ten years.

[Dennis]

Lovely set of PN's John, really like the hi-res work you are doing.

Cheers

Dennis

[billdan]

They all look pretty good to me John, I recently did the 8 burst but my sub lengths were too long and I overexposed the red part.

NGC2440 is strange indeed I wonder what solar winds created that arrangement.

I do like the ghost of Jupiter, why is it named that as it bears no resemblance to what Jupiter looks like.

Cheers
Bill

[RickS]

You're the champion of the small critters, John!

[Geoff45]

Nicely done John. The outer shells of the eight burst have come out really well and the ghost is beautiful in detail and colour.

[Joshua Bunn]

Awesome work John. Different to the usuall DSO

Josh

[Atmos]

Some excellent resolution in those images. Very well captured!

[John Hothersall]

Thanks Bill.
NGC 2440 is one of the hottest white dwarfs 219000K surf temp and does have a faint halo around the whole object. There is an inner torus and multi polar components difficult to pick out shown in the attachment.

I think we should have an object renaming program, but it's history I suppose. With CCD's it's not like looking through a telescope at a hazy blob with averted vision - we get the full detail.

Thanks everyone for comments.
Regards, John.

[multiweb]

Incredible details. :thumbsup:

[Ryderscope]

Excellent John, a great collection of PNs well presented with good colour and detail.

Makes me wonder what the collective noun for a group of PNs is :question: