Jump to content


Photo

M85 - A Lenticular Galaxy in Coma Berenices

  • Please log in to reply
14 replies to this topic

#1 srosenfraz

srosenfraz

    Skylab

  • *****
  • Posts: 4051
  • Joined: 06 Mar 2011
  • Loc: United States

Posted 25 June 2013 - 11:17 PM

This field of view shows the large lenticular galaxy M85, the spiral galaxy NGC 4394 (left of M85) and the dwarf lenticular galaxy IC 3292 to the right of M85. While lenticular galaxies aren't the most exciting of targets, this one holds a little something extra - close inspection of the high resolution image will reveal that most of the "stars" in and around M85 are actually its globular clusters!


Posted Image

High Resolution version and more image details available at http://www.astronome...php?c=113&p=500

This image was made from a stack of 115 x 5 minute subs (about 9 1/2 hours) at ISO 1600 taken with an orange tube Celestron C-8 at 1160mm (f/5.8) and a Gary Honis modified (Baader mod) Canon 450D. Guiding was with an ONAG On-axis guider, Lodestar autoguider, and Phd Guiding.

Thanks for looking!

#2 Zaid Jawed

Zaid Jawed

    Explorer 1

  • -----
  • Posts: 58
  • Joined: 20 Jun 2010

Posted 25 June 2013 - 11:49 PM

Fantastic stuff Scott!

#3 JSeay86

JSeay86

    Messenger

  • -----
  • Posts: 496
  • Joined: 26 Apr 2009
  • Loc: Tulsa, OK

Posted 26 June 2013 - 12:50 AM

Very nice Scott, great details on a tough object.

#4 Tom and Beth

Tom and Beth

    Soyuz

  • -----
  • Posts: 3640
  • Joined: 08 Jan 2007
  • Loc: Tucson, AZ

Posted 26 June 2013 - 01:48 AM

Very nice. And you get these pics while keeping the Star Colors...

#5 MarPiw

MarPiw

    Vostok 1

  • -----
  • Posts: 116
  • Joined: 30 Sep 2011
  • Loc: South of Poland

Posted 26 June 2013 - 03:52 AM

Next great picture Scott! So I'm waiting for another!

#6 Astronewb

Astronewb

    Apollo

  • *****
  • Posts: 1294
  • Joined: 19 Sep 2011
  • Loc: Connecticut

Posted 26 June 2013 - 07:50 AM

Might not be a wallhanger Scott, but it's better than most M85's imaged with a Dslr. 115 x 5 minutes? I give you credit for the patience acquiring, and processing data like that.

Thanks for sharing,

Paul

#7 Orion58

Orion58

    Viking 1

  • -----
  • Posts: 899
  • Joined: 28 Oct 2011
  • Loc: Southern Wisconsin

Posted 26 June 2013 - 08:10 AM

:goodjob:

#8 Pepe Chambó

Pepe Chambó

    Vostok 1

  • -----
  • Posts: 103
  • Joined: 24 Nov 2011
  • Loc: Vallés, Valencia (Spain)

Posted 26 June 2013 - 05:52 PM

Great image Scott!
A work well done.

#9 Gregk

Gregk

    Vanguard

  • *****
  • Posts: 2420
  • Joined: 19 Nov 2006
  • Loc: San Tan Valley, Az,

Posted 26 June 2013 - 05:54 PM

Great job !!!

#10 mmalik

mmalik

    Fly Me to the Moon

  • *****
  • Posts: 5356
  • Joined: 13 Jan 2012
  • Loc: USA

Posted 26 June 2013 - 05:58 PM

Like the natural looking star color

#11 Jerry Lodriguss

Jerry Lodriguss

    Vendor

  • -----
  • Vendors
  • Posts: 3566
  • Joined: 19 Jul 2008
  • Loc: Voorhees, NJ

Posted 27 June 2013 - 10:18 PM

Hi Scott,

That is really excellent.

Jerry

#12 shawnhar

shawnhar

    Fly Me to the Moon

  • *****
  • Posts: 5460
  • Joined: 25 Jun 2010
  • Loc: Knoxville, TN

Posted 28 June 2013 - 09:03 AM

Very nice, that is a lot of integration. I think I'm up to 4,5 hours as the longest time on any image.
Do you stack all 115 subs/darks at the same time?

#13 Campos

Campos

    Vendor-MonoMods

  • -----
  • Vendors
  • Posts: 513
  • Joined: 26 Dec 2012
  • Loc: Portugal

Posted 28 June 2013 - 09:47 AM

Now...that's deep!

Long integration time surelly pays off, do you have a permanently mounted detup Scott?

Greets,

Luís

#14 srosenfraz

srosenfraz

    Skylab

  • *****
  • Posts: 4051
  • Joined: 06 Mar 2011
  • Loc: United States

Posted 28 June 2013 - 12:46 PM

Thank you everyone for your very generous comments!

@Shawn - I usually stack each night separately, and often I end up with a couple of stacks (broken down to those focused for the center, those focused for the edges). I then align all my stacks with Registar, and then combine them with Photoshop (using masks to mask out the unfocused portion of each stack).

@Luis - yes, I have my mount setup on a permanent pier outside my house. Its not obvious from this picture, but the top of the pier is over 20' high.

#15 Nils_Lars

Nils_Lars

    Voyager 1

  • *****
  • Posts: 10055
  • Joined: 04 Jan 2008
  • Loc: Santa Cruz Mountains , CA

Posted 29 June 2013 - 01:39 AM

That is very cool , I had no idea.

Pretty deep shot for a Lenticular , excellent work once again Scott.






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics