Log in

View Full Version here: : Ngc 3532


Rigel003
21-01-2012, 06:22 PM
After a long night of battling clouds, trying not very successfully to get RGB data of another object, I dashed this off just as dawn was lightening the sky (and the clouds were clearing - wouldn't you know). Only time for three short subs of L and one each of RGB, the last ones taken in a bright sky, so it's amazing anything came of it.

It's a lovely field so I'll try to do it properly later. The magenta patch at top is from the outskirts of eta carinae.
Bigger version here (http://www.pbase.com/rigel003/image/141033975/original)

Takahashi TSA-120 with reducer
FLI Microline 8300
LRGB: 15, 5, 5, 5

TheDecepticon
21-01-2012, 06:34 PM
One of my favorite visual objects. Great job!!:thumbsup:

rogerg
21-01-2012, 06:42 PM
That's a nice image, I like the millions of stars you've brought out and the star colour. The slight diffusion of the stars helps.

renormalised
21-01-2012, 08:03 PM
Nice piccie, Graeme:)

It looks good just as it is. I sometimes get the impression that people labour under the premise that in order to get a great astropic, you need to take reams of subs for hours long sessions in order to achieve anything good. For many subjects that's not needed, especially stars. You can only bring out so much detail and colour before all those subs are nothing more than just a waste of effort. You can only collect so much data....if you wanted, you could collect 50 hours worth of subs, but they'd look no better than what you've got there. At least that's my opinion:):).

Paul Haese
21-01-2012, 09:36 PM
Nice work Graeme. I like the colours there too.

cventer
21-01-2012, 10:28 PM
Very nice. A very pretty cluster I have not seen much of

Were those single 5 min RGB subs and 1 x 15 min Lum sub ?

Rigel003
21-01-2012, 11:16 PM
Thanks for the comments everyone.



Chris, the colour subs were only one five minute each 2x2. Luminance was three unbinned 5 minute subs, the last one in a very light sky. There was a price to pay for such short exposure time. If you examine the fine detail of the 100% version it's pretty scary. Fortunately for this bright object and at this image scale it's worked pretty well.

Rigel003
21-01-2012, 11:25 PM
There's something in this Carl. I spent the whole night gathering data for a faint fuzzy and then knocked this off in 30 mins. Astrophotographers can be an anal lot though and you definitely need the long exposures to get rid of noise when you're doing extreme stretching.

Lester
21-01-2012, 11:59 PM
Very nice view Graeme, thanks.

Ross G
22-01-2012, 08:43 AM
Great photo Graeme.

So sharp and beautiful, rich colours.

Ross.

strongmanmike
22-01-2012, 08:55 AM
Another great shot Graeme, you're getting good at this :thumbsup:

Mike

marc4darkskies
22-01-2012, 09:02 AM
Cluster shots don't usually get my juices flowing but this one's a beauty Graeme! Beautiful rich star colour with just the right amount of halo and a hint of neb. Very nice image indeed!

Cheers, Marcus

TrevorW
22-01-2012, 12:29 PM
For so little data per channel the amount of detail captured is amazing was this taken at a dark site or its it just the FLI

mill
22-01-2012, 12:47 PM
For that amount of data it is a good shot.

trent_julie
22-01-2012, 12:51 PM
Your image shows a nice depth of detail, what a pretty little object, you have imaged it deservingly.

Trent

Rigel003
22-01-2012, 02:21 PM
Thanks for the comments everyone.



Trevor, it was a dark sky site, but it was so far into twilight that I'm not sure the lack of light pollution was an issue.

multiweb
23-01-2012, 07:28 AM
Really nice field. The stars and colors are very nice indeed. Beautifully processed. Nice and smooth. :thumbsup:

prokyon
23-01-2012, 09:06 AM
Very, very nice! A wonderful pic. Stars, colors, details... everything perfect!

RickC
23-01-2012, 02:31 PM
I like the jewel like quality and colours of the stars in this image
really well done

Richard