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topheart
16-05-2017, 07:03 AM
Hi All,

After recently swimming with a Dolphin, I thought I should try and harpoon a whale.....

https://savannahskies.smugmug.com/Galaxyies/i-hLnwR4Q/A

LRHaGB image taken with the 0.5M Classical Cassegrain + STX16803 with AOX guiding on a ParamountME2 at Savannah Skies.

I still haven't totally sorted out this imaging system completely after having all sorts of software issues with drivers etc.

Thanks,
Tim

Mickoid
16-05-2017, 08:25 AM
Fantastic, nicely processed and I love the colours. :thumbsup:

Martin Pugh
16-05-2017, 09:15 AM
Excellent result Tim.

I also checked out Savannah Skies: looks like a great spot. Are the 4 domes privately owned?

Cheers
Martin

strongmanmike
16-05-2017, 09:46 AM
Lovely result Tim and given it only makes 40deg above your northern horizon at the meridian, you still managed to reveal plenty of detail. Shows the benefit of having your observatory at 17deg South, brings so many northern objects into genuine imaging view while still having good access to our.. faaaar superior southern gems :D :thumbsup:

Mike

RickS
16-05-2017, 10:55 AM
Lovely colour and detail, Tim! Shame you couldn't include NGC4656. I assume your FOV was too small?

Placidus
16-05-2017, 10:56 AM
Superb rendition of NGC 4631. Beautiful colour, which I guess is showing there is strong interaction with its companion.

alpal
16-05-2017, 12:58 PM
Hi Tim,
that looks great - so much detail.
I need to check it tonight on my monitor at home.
It maybe a bit over saturated & the background looks too dark on this laptop monitor. ( it's as black as coal )

cheers
Allan

Retrograde
16-05-2017, 01:27 PM
Superb - those H II regions really pop!

topheart
16-05-2017, 04:18 PM
Thanks very much Michael!



Hi Martin,
Thanks very much. I own 2 of the 4 four domes, the other two domes and the roll-off roof observatories at our site are owned by my colleague, Joe Brimacombe: https://www.flickr.com/photos/43846774@N02/

Joe and I share the facility and pop out there to tweak and maintain everything ourselves.
Cheers,
Tim



Thanks very much Mike....yeah, it is great being able to poke a fair way up north and steal from the northern hemisphere and as well as poke down south when things rotate high enough up around the southern celestial pole....I agree about the southern gems :).
Cheers,
Tim




Thanks Rick - I would need a mosaic with my small field of view with this imaging setup or I can use the BRC250 for the hockey stick + whale combo....I have taken a bit of data on the combo with that, but I don't have a complete data set yet.



Thanks M+T. Yes the object is very photogenic and I guess it stems form the pull in the middle of the whale from the nearby large galaxy...??
Cheers,
Tim



Thanks Allan!



Thanks Pete....yes I was happy with the Ha effect...I just added it into the red channel....

Cheers,
Tim

alpal
16-05-2017, 06:50 PM
Hi Tim,
I just checked it at home.
It's OK - the background is just right.
It's amazing how monitors can be so different.

cheers
Allan

topheart
16-05-2017, 08:47 PM
Thanks very much Allan - Yep, I've been badly fooled by a non standard monitor before......
Cheers,
Tim

alpal
16-05-2017, 09:32 PM
Yes Tim,
it's the old gray-scale problem.
Most people have their monitors too dark to see anything but black on the top line:
http://piezography.com/wp-content/uploads/2012/03/256grays-crop.jpg

I sometimes adjust for that by using 25 as my lowest black level.

cheers
Allan

marc4darkskies
16-05-2017, 10:11 PM
Excellent result Tim! :thumbsup: Nice work!

topheart
17-05-2017, 10:46 AM
Thanks Marcus!
Cheers,
Tim

markas
18-05-2017, 10:34 PM
Intense! Great image Tim.

Mark

topheart
21-05-2017, 07:43 AM
Thanks very much Mark,
I guess intense is what is happening to the galaxy with the gravitational pulls....!!
Cheers,
Tim

SimmoW
21-05-2017, 08:45 AM
That's like an opal gem! Nice one

cometcatcher
22-05-2017, 01:31 PM
That's a beauty Tim. I might have to get out the chainsaw for that one. ;)

Paul Haese
22-05-2017, 04:35 PM
Nice going Tim. It's an odd looking galaxy for sure and does look like a whale. The detailing looks pretty nice and I really like your colouring. Lovely work. Just wish the resolution was larger to go looking into this galaxy.

topheart
22-05-2017, 07:32 PM
Thanks Simon -- yes, I see opal colours too....



Thanks Kevin....go for it....cut out every pesky tree, let the sky flood over you!!
Cheers,
Tim



Thanks very much Paul. Yes, I will have to find a way to upload files to a higher resolution than Smugmug is letting me currently....I haven't been able to sort it out so far.
Cheers,
Tim

Octane
23-05-2017, 03:11 PM
One of the most aptly-named objects out there!

Beautiful image, Tim. :)

H

topheart
24-05-2017, 07:59 PM
Thanks H!!
Cheers,
Tim