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Astrophotography and Sketching >> DSLR & Digital Camera Astro Imaging & Processing

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srosenfraz
Post Laureate
*****

Reged: 03/06/11

Loc: United States
M33 - The Triangulum Galaxy
      #5601897 - 01/02/13 08:30 PM

M33 is the third largest galaxy in our Local Group of galaxies which includes M31 (the Andromeda Galaxy), and our own Milky Way Galaxy. Visually, the galaxy is quite large - about 70' x 40'. This makes the galaxy about 3 times larger than the full moon. However, unlike the Full Moon, M33 has a very low surface brightness, so it is quite challenging to see as well as to photograph:



High Resolution Version and more image details available at http://www.astronomersdoitinthedark.com/index.php?c=113&p=475

This image was made from several stacks of data captured on 7 nights over the last 2 years. Last year, I gathered 231 x 3 minute subs (11 1/2 hours) of RGB @ ISO 1600 with a Canon 20Da using a Celestron orange tube C-8 with Celestron focal reducer at f/6.3 (1260mm). Guiding was with an 80mm Astro-Physics 80mm f/11 refractor, Orion SSAG, and Phd Guiding. With this year's data, I added 188 x 3 minutes of RGB (9 1/2 hours) at ISO 1600 plus 40 x 10 minutes of Ha (6 2/3 hours) using a 6nm clip filter captured to a Gary Honis modified (Baader mod) Canon 450D. Imaging scope was the same orange tube Celestron C-8 with Celestron focal reducer at f/5.8 (1160mm). Guiding this year was via an ONAG On-Axis Guider, Lodestar autoguider, and Phd Guiding.

This year's RGB data was focused for the outer edges of the galaxy as well as the center of the galaxy, and I used focus stacking to combine these sets of data for sharper focus across the FOV. Ha data was used to highlight the Ha regions within the galaxy.

As always, thank you for looking!


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shawnhar
Post Laureate
*****

Reged: 06/25/10

Loc: Knoxville, TN
Re: M33 - The Triangulum Galaxy new [Re: srosenfraz]
      #5601907 - 01/02/13 08:35 PM

Nice!

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TimN
Pooh-Bah


Reged: 04/20/08

Loc: Ontario, Canada
Re: M33 - The Triangulum Galaxy new [Re: shawnhar]
      #5601968 - 01/02/13 09:07 PM

Very nice! Lots of great detail.

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rob77
professor emeritus


Reged: 02/25/12

Loc: Belo Horizonte (Brazil) and Cu...
Re: M33 - The Triangulum Galaxy new [Re: TimN]
      #5602026 - 01/02/13 09:55 PM

Outstanding

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astroricardo
sage
*****

Reged: 11/14/11

Loc: Marietta, GA
Re: M33 - The Triangulum Galaxy new [Re: rob77]
      #5602150 - 01/02/13 11:23 PM

That's pretty awesome, and it is a tough one that's for sure

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Skyshooter
professor emeritus


Reged: 04/07/08

Loc: S. Utah, U.S.A.
Re: M33 - The Triangulum Galaxy new [Re: astroricardo]
      #5602202 - 01/02/13 11:59 PM

Wow, that's spectacular! Your patience and processing abilities are admirable...

CLS
Ed


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willem123
sage


Reged: 08/09/11

Loc: South-Africa
Re: M33 - The Triangulum Galaxy new [Re: Skyshooter]
      #5602241 - 01/03/13 12:44 AM

SC0TT ROSENFRAZ = CLOUDY NIGHTS DSLR GALAXY EXPERT!


-----------------------
Skywatcher 120 ED pro refractor; SW EQ6 Synscan mount
Celestron Nexstar 8SE SCT; Tasco 90mm refractor
Modified Canon 1100D (T3); Canon 550D (T2i)
Canon 10-22mm lens; Canon 18-55mm lens
Sigma 120-400mm lens
Celestron Nexguide.


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carlo rocchi
Pooh-Bah


Reged: 12/02/09

Loc: Milan, Italy
Re: M33 - The Triangulum Galaxy new [Re: willem123]
      #5602391 - 01/03/13 05:54 AM

Wow... really great!!!

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johne
sage
*****

Reged: 11/10/06

Loc: Prescott, AZ.
Re: M33 - The Triangulum Galaxy new [Re: carlo rocchi]
      #5602447 - 01/03/13 07:24 AM

Beautiful image of M33. Well worth the many hours of exposure and processing effort. That is one I would print, frame and hang.

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bouffetout
scholastic sledgehammer


Reged: 11/21/12

Loc: Canada
Re: M33 - The Triangulum Galaxy new [Re: johne]
      #5602497 - 01/03/13 08:23 AM

Awesome !

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FloridaObserver
sage


Reged: 12/07/06

Loc: Fort Myers, FL
Re: M33 - The Triangulum Galaxy new [Re: bouffetout]
      #5602518 - 01/03/13 08:37 AM

More proof that data is king (in addition to top quality processing). Thanks for the inspirational image.

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Orion58
scholastic sledgehammer


Reged: 10/28/11

Loc: Southern Wisconsin
Re: M33 - The Triangulum Galaxy new [Re: FloridaObserver]
      #5602549 - 01/03/13 08:54 AM

Well done Scott!

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srosenfraz
Post Laureate
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Reged: 03/06/11

Loc: United States
Re: M33 - The Triangulum Galaxy new [Re: Orion58]
      #5603084 - 01/03/13 02:07 PM

Thank you very, very much everyone for your very nice comments - I truly appreciate it.

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lukasik
Carpal Tunnel
*****

Reged: 10/11/05

Loc: Lawrenceville, Georgia
Re: M33 - The Triangulum Galaxy new [Re: srosenfraz]
      #5603561 - 01/03/13 07:22 PM

Hoo-wheee! That's eye-popping Scott - great job!


Regards,

Bob


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nive
member


Reged: 01/28/08

Loc: Denmark
Re: M33 - The Triangulum Galaxy new [Re: lukasik]
      #5604105 - 01/04/13 05:25 AM

Good Job

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Nils_Lars
Postmaster
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Reged: 01/04/08

Loc: Santa Cruz Mountains , CA
Re: M33 - The Triangulum Galaxy new [Re: nive]
      #5605852 - 01/05/13 12:43 AM

Tons of details in M33 here Scott , you got into the outer wisps pretty deep too.

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srosenfraz
Post Laureate
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Reged: 03/06/11

Loc: United States
Re: M33 - The Triangulum Galaxy new [Re: Nils_Lars]
      #5606708 - 01/05/13 02:11 PM

Thank you so much Bob, Nils, and Erik.

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vmsguy
sage


Reged: 01/09/07

Loc: West Virginia
Re: M33 - The Triangulum Galaxy new [Re: srosenfraz]
      #5606738 - 01/05/13 02:35 PM

Wow, very nice image.

27 hours of data. The most I've tried to combine is around 6 hours.

Now that I've started guiding, I need to dust off my C8 after seeing results like this.

Brent


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northernontario
Pooh-Bah
*****

Reged: 07/01/09

Loc: Porcupine, Ontario Canada
Re: M33 - The Triangulum Galaxy new [Re: vmsguy]
      #5606754 - 01/05/13 02:47 PM

Are you sure you didn't hijack the Hubble Telescope

That's one nice picture.

jake


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fco_star
Pooh-Bah
*****

Reged: 12/13/10

Loc: Texas, Midland
Re: M33 - The Triangulum Galaxy new [Re: northernontario]
      #5607416 - 01/05/13 10:31 PM

Scott, your picture is gorgeous !!
Hi from latitude 0


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