Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

NGC 6744 – A Low Surface Brightness Galaxy in the Pavo Constellation

astrophotography
  • Please log in to reply
11 replies to this topic

#1 Terry R

Terry R

    Viking 1

  • -----
  • topic starter
  • Posts: 609
  • Joined: 31 Jan 2013
  • Loc: Australia

Posted 15 September 2019 - 04:04 AM

NGC 6744 is classified as an intermediate spiral galaxy and has a similar structure to the Milky Way.  It’s located in the southern constellation Pavo at a distance of about 30 million light-years.  The low surface brightness of this galaxy requires long exposures to reveal the wonderful structures near the core and along its arms.   The similarities with our own galaxy include the elongated core, flocculent (fluffy) arms, and a similar companion galaxy NGC 6744A, similar to one of the Magellanic Clouds in our own galaxy.   The arm on the top left is most likely distorted by this companion galaxy.  NGC 6744 is a member of the Virgo Supercluster.

 

This image was created from exposures taken through five different filters.  The RGB component was used to create the base colour layers.  Details of the galaxy and its core were revealed with the luminance filter.  Finally, Ha highlights the presence of emission nebula throughout the galaxy.

 

Even after their long journey, the photons captured have revealed a beautiful galaxy with integrate structures near its core as they were some 30 million years ago in the past.   This is perhaps the main reason why I enjoy this hobby so much.  To be in a position where I can take incredible images from objects so far away.  The time taken for light to reach us is almost unimaginable.  It's really nice to have my own time machine that allows observing objects as they were millions of years ago.

 

Equipment Details:


•10 Inch RCOS fl 9.1
•Astro Physics AP-900 Mount
•SBIG STL 11000m
•FLI Filter Wheel
•Astrodon LRGB Filters
•Baader Planetarium H-alpha 7nm Narrowband-Filter

 

Exposure Details:

 

•Red 15X600
•Green 18X600
•Blue 23X600 
•Lum 47X900 
•Ha 41X1200

 

 

Total time: 33.4 hours

 

Astrobin

get.jpg?insecure

 

Flickr

48735907311_b4aea62879_q.jpg

 

Thanks for looking


Edited by Terry R, 15 September 2019 - 04:43 AM.

  • atalas, Gregory, noodle and 24 others like this

#2 wargrafix

wargrafix

    Skylab

  • -----
  • Posts: 4065
  • Joined: 10 Apr 2013
  • Loc: Trinidad

Posted 15 September 2019 - 08:32 AM

In every version of this has looked mediocre.

This is perhaps the greatest version of this galaxy I have ever seen. Truly fantastic! One to print and frame for sure
  • mic1970 likes this

#3 44maurer

44maurer

    Viking 1

  • *****
  • Posts: 586
  • Joined: 12 Jun 2016
  • Loc: Los Angeles, CA

Posted 15 September 2019 - 12:09 PM

Fantastic color and detail.



#4 Mert

Mert

    Fly Me to the Moon

  • *****
  • Posts: 6319
  • Joined: 31 Aug 2005
  • Loc: Spain, Pamplona

Posted 15 September 2019 - 03:44 PM

Brilliant detail and colors!

And that for such a low surface brightness, extremely

well done!!



#5 Jim Thommes

Jim Thommes

    Fly Me to the Moon

  • ****-
  • Posts: 5514
  • Joined: 20 Sep 2004
  • Loc: San DiegoCA USA

Posted 15 September 2019 - 04:24 PM

Super image Terry. Nice work.



#6 Terry R

Terry R

    Viking 1

  • -----
  • topic starter
  • Posts: 609
  • Joined: 31 Jan 2013
  • Loc: Australia

Posted 15 September 2019 - 07:04 PM

In every version of this has looked mediocre.

This is perhaps the greatest version of this galaxy I have ever seen. Truly fantastic! One to print and frame for sure

Thanks man.  It is certainly a very dim galaxy.

 

Fantastic color and detail.

Thanks for that waytogo.gif

 

Brilliant detail and colors!

And that for such a low surface brightness, extremely

well done!!

Thank you Mert.

 

Super image Terry. Nice work.

Many thanks Jim



#7 elmiko

elmiko

    Gemini

  • -----
  • Posts: 3327
  • Joined: 27 Jul 2009
  • Loc: Arizona

Posted 15 September 2019 - 10:04 PM

Beautiful image Terry! Your processing skills are obviously outstanding!
Mike



#8 Terry R

Terry R

    Viking 1

  • -----
  • topic starter
  • Posts: 609
  • Joined: 31 Jan 2013
  • Loc: Australia

Posted 16 September 2019 - 02:06 AM

Beautiful image Terry! Your processing skills are obviously outstanding!
Mike

That is certainly a very generous comment.  Where do I send the money? lol.gif


  • elmiko likes this

#9 leemr

leemr

    Ranger 4

  • -----
  • Posts: 381
  • Joined: 21 Mar 2014

Posted 16 September 2019 - 03:58 AM

Solid effort on a difficult target; well done, Terry!



#10 Terry R

Terry R

    Viking 1

  • -----
  • topic starter
  • Posts: 609
  • Joined: 31 Jan 2013
  • Loc: Australia

Posted 16 September 2019 - 05:53 PM

Solid effort on a difficult target; well done, Terry!

Thanks Leemr.



#11 atalas

atalas

    Gemini

  • -----
  • Posts: 3011
  • Joined: 21 Feb 2005

Posted 17 September 2019 - 10:37 PM

Wow  waytogo.gif excellent Terry.... never seen this galaxy look this good!



#12 Terry R

Terry R

    Viking 1

  • -----
  • topic starter
  • Posts: 609
  • Joined: 31 Jan 2013
  • Loc: Australia

Posted 18 September 2019 - 01:54 AM

Wow  waytogo.gif excellent Terry.... never seen this galaxy look this good!

Thanks atalas.  It's amazing what a couple bits of reflective surfaces can yield at times. Thanks for the feedback.




CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics







Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics