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Old 20-05-2020, 08:23 PM
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strongmanmike (Michael)
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The giant galaxy NGC 5084 in southern Virgo

This beautiful and vary rarely imaged, lenticular galaxy in southern Virgo, is one of largest and most massive galaxies in the Virgo Super cluster of galaxies. We view it almost perfectly edge on, so while it appears only about one arc min in thickness, in this very deep image, NGC 5084 spans almost 17 arc min of the sky, which, at an estimated distance of 80 Million light years, means it is nearly 400,000 light years in diameter, which in anyone's book, is one seeeriously gigantic galaxy!

I have a new favourite little galaxy too ...the Cheese Burger Galaxy just under the outer reaches of NGC 5084 left side.

I was lucky to get some decent seeing for much of this capture, my autoguiding errors were sitting at +/- 0.2 arc sec for most of two of the three nights! the third night was nearly as good.

Don't forget to calibrate your monitor brightness/contrast for the best view

Giant galaxy NGC 5084 click on image and pan around with your cursor

To have a good look at the full resolution image go HERE

Don't forget, most image capture details can be found under the image

Cheers

Mike
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Last edited by strongmanmike; 20-05-2020 at 08:44 PM.
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  #2  
Old 20-05-2020, 09:35 PM
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Great view Mike. Welcome back.. enjoyed the cheese burger also btw.
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Old 20-05-2020, 11:32 PM
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Atmos (Colin)
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There is a few nice and interesting galaxies scattered throughout that field Mike
The main galaxy is an interesting one, that's for sure!
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Old 21-05-2020, 06:34 AM
Placidus (Mike and Trish)
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Oh wow, such a galaxy and such an image! Such hawks, such hounds, and such brave men.


The guiding figures were remarkable, and imply pretty good seeing. The depth and colour are all your own!


Inspired by your image, 5084 is now on the "must do" list.
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Old 21-05-2020, 07:46 AM
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Well done Mike - great image & always a pleasure to see something new!
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Old 21-05-2020, 07:53 AM
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Hi Mike,
Andy's comments are spot on!!
Awesome!
Cheers,
Tim
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  #7  
Old 21-05-2020, 08:34 AM
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marc4darkskies (Marcus)
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Out. Standing.

Just a question Mike (!!), is the central portion supposed to be that yellow, or is that artistic license? None of the renditions I've seen show a vibrant yellow core.
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Old 21-05-2020, 08:56 AM
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Nice photo Mike,
that's a rare one that I haven't seen before.

What is the galaxy name just below on the right hand side?
Is it a companion galaxy?


cheers
Allan
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Old 21-05-2020, 09:15 AM
markas (Mark)
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Great image of 5084! The time you've given it certainly has paid off. That
detail doesn't come easily.....


Mark
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Old 21-05-2020, 11:25 AM
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strongmanmike (Michael)
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Quote:
Originally Posted by peter_4059 View Post
Great view Mike. Welcome back.. enjoyed the cheese burger also btw.
Thanks Pete, I'm a quarterpounder guy myself

Quote:
Originally Posted by Atmos View Post
There is a few nice and interesting galaxies scattered throughout that field Mike
The main galaxy is an interesting one, that's for sure!
I agree Col, I shot this galaxy back in 2013 at much wider FOV with the AG12 and 16803 chip but this latest effort has better resolution through twice as fine image scale

Quote:
Originally Posted by Placidus View Post
Oh wow, such a galaxy and such an image! Such hawks, such hounds, and such brave men.


The guiding figures were remarkable, and imply pretty good seeing. The depth and colour are all your own!


Inspired by your image, 5084 is now on the "must do" list.
Thanks chook masters, bet that list is pretty long....

Quote:
Originally Posted by Andy01 View Post
Well done Mike - great image & always a pleasure to see something new!
Thanks Andy, indeed

Quote:
Originally Posted by topheart View Post
Hi Mike,
Andy's comments are spot on!!
Awesome!
Cheers,
Tim
On ya Timmy

Quote:
Originally Posted by marc4darkskies View Post
Out. Standing.

Just a question Mike (!!), is the central portion supposed to be that yellow, or is that artistic license? None of the renditions I've seen show a vibrant yellow core.
Thanks Marcus, I was happy with how this one came together, can't beat good seeing As for the yellow core, well, prob just dealers choice I recon.. showing my Tony Hallas side ...Adam Blocks shot with the Schulman 32" RC scope on 9000ft Mt Lemmon, is pretty yellow though

Quote:
Originally Posted by alpal View Post
Nice photo Mike,
that's a rare one that I haven't seen before.

What is the galaxy name just below on the right hand side?
Is it a companion galaxy?


cheers
Allan
Thanks Al, dunno...? at work so haven't got my star atlass

Quote:
Originally Posted by markas View Post
Great image of 5084! The time you've given it certainly has paid off. That
detail doesn't come easily.....


Mark
Thanks Mark, yeah seeing rules

Mike
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  #11  
Old 21-05-2020, 11:30 AM
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Atmos (Colin)
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I’ve just noticed that you have an internal reflection Mike, on the bottom left of the main galaxy it’s been replicated
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Old 21-05-2020, 11:57 AM
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Quote:
Originally Posted by Atmos View Post
I’ve just noticed that you have an internal reflection Mike, on the bottom left of the main galaxy it’s been replicated
Yeah, it looks like the star images you see in some of the older FSQ's and other refactors go the Cheeseburgers
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Old 21-05-2020, 12:17 PM
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A rare image, haven't seen that one before. Nicely done. It looks like a small elliptical and spiral merged with that central dome. A bit like M104 The Sombrero.

Greg.
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Old 21-05-2020, 01:25 PM
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Quote:
Originally Posted by gregbradley View Post
A rare image, haven't seen that one before. Nicely done. It looks like a small elliptical and spiral merged with that central dome. A bit like M104 The Sombrero.

Greg.
Thanks mate, I agree, the galaxy certainly evokes M104 feelings, undale undale aribba arriba.

Mike
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Old 21-05-2020, 03:35 PM
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Very cool target, Mike; I don't recall seeing this one before.

I'd like to say that you've done an amazing job... but... I have no basis for comparison

Seriously though, I had a quick poke around and there's not many images of this. I found one, apparently captured with a 32in RC (RCOS) in the Mount Lemmon observatory and yours compares very favourably.

Edit: ha, I guess it pays to read the comments as well as the original post ;-)
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Old 21-05-2020, 04:06 PM
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Nice catch there, Mike! Lovely image.
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Old 21-05-2020, 08:31 PM
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Quote:
Originally Posted by codemonkey View Post
Very cool target, Mike; I don't recall seeing this one before.

I'd like to say that you've done an amazing job... but... I have no basis for comparison

Seriously though, I had a quick poke around and there's not many images of this. I found one, apparently captured with a 32in RC (RCOS) in the Mount Lemmon observatory and yours compares very favourably.

Edit: ha, I guess it pays to read the comments as well as the original post ;-)
Ha ha...yeah it isn't imaged by too many at all, hardly any in fact, as you discovered. This is surprising really, because I thought it a pretty spectacular looking galaxy, for an edge on baby and at 17 arc min long it's pretty big. Thin galaxies can often be somewhat boring but I think its size, the bright flaring haloed core area, with the thin but fanning edge on arms and slightly billowing ends, makes for a unique and very speccy looking galaxy

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Nice catch there, Mike! Lovely image.
Thanks a lot Graham.

Mike
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Old 21-05-2020, 09:03 PM
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Quote:
Originally Posted by alpal View Post
Nice photo Mike,
that's a rare one that I haven't seen before.
What is the galaxy name just below on the right hand side?
Is it a companion galaxy?

cheers
Allan


Quote:
Originally Posted by strongmanmike View Post

Thanks Al, dunno...? at work so haven't got my star atlas

Mike

Hi Mike,
I found out.
This site gives the names but says the distances are unknown.
http://server7.wikisky.org/starview?...5084&locale=EN


So we now know its name: PGC 46489.
The distance of NGC 5084 is 80 million ly.
see here:
https://en.wikipedia.org/wiki/NGC_5084


The distance of PGC 46489 is 58 million ly.
https://de.wikipedia.org/wiki/PGC_46489


Therefore it's not a companion or satellite galaxy like our LMC
or Andromeda's M110 or NGC 205 galaxy.
However it could be gravitationally bound as are many galaxies in that direction.


cheers
Allan
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Old 22-05-2020, 06:55 AM
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strongmanmike (Michael)
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Well there ya go, detective Al...no discovery...DOH!

Mike
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Old 22-05-2020, 07:54 AM
PeterSEllis (Peter)
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Excellent shot of NGC5084 and those background galaxies Mike. I think I will have to add that to my bucket list, although, with so many galaxies out there the list is pretty long already.

Peter
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