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View Full Version here: : NGC 4945 Tweezers Galaxy with 2600MC


Startrek
22-05-2021, 09:17 PM
My first image of this Barred Spiral Galaxy using my 2600MC cooled OSC. I’ve imaged it prior using my old DSLR but obviously not with the same results.Discovered by James Dunlop in 1826 at Parramatta in Sydney it’s located approx 12 million light years away from us. It’s also referred to as The Golden Coin Galaxy which I think is maybe more appropriate given its shape and colour

South Coast NSW
Bortle 3 skies
No moon
NexDome Obs
8” f5 GSO newt
EQ6-R mount
ZWOASI2600MC set in Ascom at Highest Dynamic Range Gain 0 cooled to -15C
45 x 3 minute dithered guided subs
Goto and Nav EQMOD and Ascom Stellarium
Frame focus and capture APT
PHD2 Multistar guiding 0.80 arc sec total
Stacked in DSS
Processed in Startools V1.7 OSC Linear Data Set

Comments welcome
Thanks

Alchemy
23-05-2021, 07:04 AM
I’ve always found this one challenging due to the star field, nice to see the extended luminosity of the galaxy amongst the stars.
All the required elements present, detail in the dust lanes, some Ha regions, background galaxy’s, no blowouts in the core and crisp star spikes….

PKay
23-05-2021, 07:51 AM
Nice work M :thumbsup:

Good to have some really clear nights, cold though...

Ryderscope
23-05-2021, 08:36 AM
Wonderful work Martin and a striking composition.

AdamJL
23-05-2021, 02:19 PM
Wow, Martin!! This is on point, mate. Beautiful work.

Startrek
23-05-2021, 06:33 PM
Hi All
Thanks for all your comments
It’s a demanding target to process but this image turned out ok
Resolution around the core and spirals was a bit flat but used deconvolution to sharpen things up a little bit
Bortle 3 skies and no moon helps a great deal too
Cheers
Martin

Nikolas
23-05-2021, 06:51 PM
Very nice work
Is it an easy target to acquire?

gregbradley
23-05-2021, 09:00 PM
That turned out well. I like the sun flare on the bright blue star, it adds a bit of drama.

Greg.