NGC 6164-5 Looks like a planetary nebula, the cast off shell of a long finished star....
Looks can be deceiving, this is an O6e Star one of the super luminious type stars that reside at the top of the main sequence line on the Hertzsprung-Russel diagram (Stars on the main sequence are classified in the order of O B A F G K M N, each is further broken into 10 subclasses of 0 to 9)
Also not a Wolf-Rayet star, those evolved stars which have left the main sequence at the end of of their life which have massive solar winds forming bubbles around them (Thors Helmet is an example)
The central star is a young O class star somewhere estimated to be 350,000 to 2,000,000 years old. Weighing in at around 40 solar masses, it is estimated to have solar winds of around 8,000,000 km per hour, these winds crash into the surrounding gasses and with the huge amounts of UV light emmitted , cause the gasses to glow, various sources suggets that the star has also blown off large amounts of material in several explosive outbursts starting some 4000 years ago which have added to the Nebula.
A very dynamic system and particularly unusual as only five such stars are known to exist, three in our galaxy and two in Small Magellanic Cloud, it is likely to end its life as a supernova within the next few million years, and according to the Hipparcos catologue (HIP81100) is only about 5350 light years away.
Shot with my usual gear
G11, 12 inch newt, qhy8 camera (offset 117 gain 50), only 8 6min exposures.... the clouds rolled in
Was going to post a bunch of shots together but i deleted ALL my images on the computer by accident .... lost all my dslr raws plus any QHY8 processed material ..... had to go to backup for fits files (whew) and for Finished TIFs of dslr shots. (accidentally dragged pictures into upper folder and it left a pictures file behind so i went to upper folder and deleted thinking it had copied....not so) what a luddite!!!
will get back to normal soon but have to revisit some processing.
pics at 25% 50% and a quick locale shot with the frame referenced so you can see where it is.
cheers clive
(clear skies predicted here soon so will get out the Ha filter WoooHooo)
gday paul, the location shot just comes straight out of desktop universe as a screen shot , you can overlay nebs, galaxies boundarys, frame size of your camera etc etc, its an old program now... i think they sold it to staryy night for the top level program, i use it for all my imaging as what you see is what you get... its terrific for finding stuff to image. have attatched something were all familiar with M8 as a screenshot.... the large is a bit small because of the 200kb so i have added a close up so you can see the quality.... its a must have if you like taking pics
Leon , yeah the dumping of all my files was real impressive.... it was thurs 12th too not fri 13th. thanks for looking at the image.
paul time for another investment i think, you wont know how you lived without it once you have it.
ric and robert - its nice to do quick google on what you image , as universitys and individuals do all sorts of write ups , and it can be soooo interesting
Hagar, hagar, hagar..... you can never have enough aperture. however heres a tip for you. With your exposures if you want to go deeper apart from doing longer exposures try this. say you have 20 exposures, median stack in groups of 4 or 5 save as a tiff, the tiffs then stack as summed. You will find it easier to lift the image using curves and also not go too gritty on you. Once youve lifted it set the black point INDIVIDUALY ie red channel , blue channel etc ...... if your stars have lost a bit of colour because they are overbright you can use the colour range tool to copy and paste from one of the original tiffs. Try it and let me know how it goes.
Problem is Clive, the investment might need to extend as far as a new laptop. This poor ol' thing would have a heart attack trying to run SN Pro Plus 6.2
Problem is Clive, the investment might need to extend as far as a new laptop. This poor ol' thing would have a heart attack trying to run SN Pro Plus 6.2
Yep, it is a very rare and wonderful type of star and nebula -- an extremely interesting visual target and your image did a sensational job of capturing it.
I really love it when people get "off the beaten track" either visually or in imaging and do something out of the ordinary. Well done mate!!
thaks Les.... ive finally figured it out, inside all the astronomers theres a scientist just waiting to get out. Will tackle some more unusual objects soon.
Quote:
She's not the problem. Sya would happily say "Go for it"
Paul youve got a beauty there, you just look after her , those sorts are hard to come by.
barb, it must be a local phenomenon. at least we both have some original material to work with, i went to my website to get the jpgs so at least i had an idea on where i expected the image to end up....it helped. well you will be kept busy for a while until we get some good weather again..... its been a bit thin of late. will be doing that nebula of yours soon. (hopefully)
) what a luddite!!!
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It looks great!
