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11-09-2021, 01:56 PM
Narrowing the band
Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
Grus Spiral Trio 2: 7162A and friends
Three very different galaxies in Grus. NGC 7162A toward top left is a distorted face-on spiral undergoing a burst of star formation and is noticeably blue. NGC 7166 is a large (and presumably more distant) elliptical, red, featureless. NGC 7162 to the right is a more typical half-face-on spiral.
Full field here
Field 38 min arc, north up.
Each galaxy is around magnitude 12 to 12.5. There are very few images of them out there to compare to.
There are squillions of other tiny galaxies - many spirals, a couple faint magellanic beasties, scattered about.
FLI PL16803 on 20 inch PlaneWave. Lum: 7 hrs. RGB: 3h30 per channel.
As usual, all robotics, motor control electronics and firmware, and all control, acquisition and processing software written/built in house by us.
We've been out of the game for about 6 months due to the death of our third generator, the decision to go solar, and the usual effects of Covid on imports. We went with 4.8 KWH worth of batteries/inverter from Mobile Power Solutions in Qld. Superb.
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11-09-2021, 04:17 PM
a.k.a. @AstroscapePete
Join Date: Oct 2011
Location: Sydney
Posts: 1,634
A gorgeous field M & T.
Glad to hear things are back up & running. Hope you have a nice, trouble free run for a while.
11-09-2021, 05:33 PM
Narrowing the band
Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
Quote:
Originally Posted by
Retrograde
A gorgeous field M & T.
Glad to hear things are back up & running. Hope you have a nice, trouble free run for a while.
Thanks Pete!
11-09-2021, 07:12 PM
ze frogginator
Join Date: Oct 2007
Location: Sydney
Posts: 22,062
11-09-2021, 07:16 PM
Registered User
Join Date: May 2017
Location: DEPOT BEACH
Posts: 1,643
Have missed the images from your big bucket...
Good to see you up and running again
11-09-2021, 08:12 PM
Narrowing the band
Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
Quote:
Originally Posted by
multiweb
Quote:
Originally Posted by
PKay
Have missed the images from your big bucket...
Good to see you up and running again
Thanks Marc and Peter, that's most kind.
11-09-2021, 09:26 PM
Registered User
Join Date: Jan 2012
Location: Melbourne
Posts: 3,610
Hi Mike and Trish,
glad to have you back - I missed your pics.
Top image part from some minor wavy banding
in the low signal areas.
cheers
Allan
12-09-2021, 10:37 AM
Narrowing the band
Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
Quote:
Originally Posted by
alpal
Hi Mike and Trish,
glad to have you back - I missed your pics.
Top image part from some minor wavy banding
in the low signal areas.
cheers
Allan
Thanks muchly Allan. We can see the banding if we lean on the brightness slider. Almost certainly due to too-heavy-handed wavelet noise reduction causing posterization in the blacks. One day I'll have a think about how to stop that happening. In the interim, nobody to lean hard on the brightness slider!
16-09-2021, 09:15 AM
Registered User
Join Date: May 2014
Location: Darwin
Posts: 737
Great image M & T, good to have you back
16-09-2021, 05:18 PM
Narrowing the band
Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
Quote:
Originally Posted by
vlazg
Great image M & T, good to have you back
Cheers George
16-09-2021, 06:21 PM
Registered User
Join Date: Nov 2020
Location: PADSTOW
Posts: 2,088
Absolutely love this! Beautiful detail and a really interesting field!!
16-09-2021, 06:22 PM
Highest Observatory in Oz
Join Date: May 2006
Location: Canberra
Posts: 17,174
Now
THAT's what you've been missing huh guys?!! Fields full of galaxies, who can't just look and wonder....
Mike
16-09-2021, 07:27 PM
Registered User
Join Date: May 2006
Location: Glanmire, NSW
Posts: 2,184
An enchanting field replete with galaxies galore. Much fun is to be had in wandering around the field in the image.
25-09-2021, 06:21 PM
Narrowing the band
Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
Quote:
Originally Posted by
Dave882
Absolutely love this! Beautiful detail and a really interesting field!!
Thanks David.
Quote:
Originally Posted by
Ryderscope
An enchanting field replete with galaxies galore. Much fun is to be had in wandering around the field in the image.
Thanks Rodney. Kinda like they are
all "background" galaxies. No great big M83 in the middle.
Quote:
Originally Posted by
strongmanmike
Now
THAT's what you've been missing huh guys?!! Fields full of galaxies, who can't just look and wonder....
Mike
Yep, we've been missing this. You're right about looking and wondering. What is out there? Glad they're a long way away.
25-09-2021, 06:43 PM
Registered User
Join Date: Feb 2006
Location: Sydney
Posts: 17,896
Fabulous image. I really like your processing of this one. Very nicely done.
Such a great field.
Greg.
28-09-2021, 02:58 PM
Narrowing the band
Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
Quote:
Originally Posted by
gregbradley
Fabulous image. I really like your processing of this one. Very nicely done.
Such a great field.
Greg.
Thanks Greg. That's very encouraging.
30-09-2021, 08:22 AM
Registered User
Join Date: Jun 2015
Location: NZ
Posts: 248
What a great image M & T! a really fascinating field 👍
30-09-2021, 02:00 PM
Registered User
Join Date: Sep 2010
Posts: 2,100
Stunning field! I've spent a long time looking at that image.
So.Many.Galaxies!! Wow
Can I ask what causes the banding across the image? Looks like fingerprint lines
01-10-2021, 10:30 AM
My God it's full of stars
Join Date: Mar 2012
Location: Melbourne
Posts: 3,256
Welcome back guys - the Placidus deep field huh? - excellent!
01-10-2021, 11:34 AM
Registered User
Join Date: Feb 2011
Location: Kilmore, Australia
Posts: 3,342
Wow, a beautiful image!
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