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View Full Version here: : NGC346 improved version and an unexpected planetary nebula


Stevec35
19-10-2016, 11:30 AM
Hi to all

Sorry to post a reprocess so soon but I thought this was rather better than the original. I also noticed a blue dot just to the right of the main nebula which I thought looked like a planetary nebula. My planetary nebula authority in the UK says that is indeed the case and it is a SMC planetary nebula. The designation is LHA 115-N 70. He also said the cataloged diameter is .38"! I find it rather surprising to have picked up something this small but it seems to be real.

I've included a 200% crop showing the planetary.

Cheers

Steve

http://members.pcug.org.au/~stevec/NGC346_STXL6303_RC14_HST.htm

topheart
19-10-2016, 01:59 PM
Awesome!
Thanks. Well done!
Cheers,
Tim

Stevec35
19-10-2016, 05:19 PM
Thanks Tim

rustigsmed
19-10-2016, 06:54 PM
really cool steve, don't know of too many PN's in other galaxies! it really pops out.

russ

Stevec35
19-10-2016, 08:32 PM
Thanks Russ. Must admit I was a bit skeptical because it just looks too prominent but I think it's right. Perhaps this indicates that Hubble palette images are a good way to find planetaries.

Shiraz
19-10-2016, 08:34 PM
excellent image and interesting to boot with a tiny PN - nice work.

Stevec35
19-10-2016, 11:50 PM
Thanks Ray

strongmanmike
20-10-2016, 02:30 PM
Nice NGC 346 there Steve, the turquoise blue neb looks cool and nice reveal of the little PN too :thumbsup:

Mike

Stevec35
20-10-2016, 05:42 PM
Thanks Mike. I've got a better one in preparation that shows detail in the dark areas much better. Incidentally I'm not convinced about that PN being in the SMC as it looks too big and bright but I haven't had time to research it.

multiweb
21-10-2016, 11:27 AM
That looks very good Steve. Very nice details. :thumbsup:

Placidus
21-10-2016, 12:25 PM
Steve, for the well intentioned but colourblind viewers, could you please post a thumbnail with an arrow pointing at the planetary? I can't find it.

Stevec35
21-10-2016, 01:16 PM
Sorry - I'll look at doing that. Got lazy I guess. It's the blue dot on the right of the main nebula about half way to the edge of the frame.



Thanks Marc

Placidus
21-10-2016, 01:53 PM
Thanks, Steve. I got Trish to find it. Crystal clear now! Well done.
Mike

Stevec35
21-10-2016, 09:02 PM
Thanks Mike

RickS
22-10-2016, 09:12 PM
Nice rendition of NGC346, Steve. I'll be interested to hear how your research on the PN goes.

Cheers,
Rick.

Stevec35
22-10-2016, 10:32 PM
Thanks Rick. Have to admit I haven't done much yet. All I can find is that the diameter is apparently .38 arcsec and that the finder chart for it seems to match the blue dot in my image.