Jump to content


Photo

Dumbbell Nebula and M15

  • Please log in to reply
20 replies to this topic

#1 CarlosEH

CarlosEH

    Fly Me to the Moon

  • *****
  • Posts: 7171
  • Joined: 19 Jan 2005
  • Loc: Pembroke Pines, Broward County, Florida

Posted 12 November 2009 - 05:41 PM

I was able to view the Dumbbell Nebula (M27 and NGC 6853) and M15 (NGC 7078) while on vacation on Northern California under very dark and steady skies. Stars fainter than sixth magnitude were easily visible under the black jet skies with the Milky Way prominent. I was using my faithful Celestron C8 Schmidt-Cassegrain reflector for my observations (105x and 210x). The Milky way was visible as a bright, nebulous stream with pockets of dark spots within this celestial river. The image below is an example of what I enjoyed; http://www.sciencebu...4148a-500px.jpg

The Dumbbell Nebula (M27 or NGC 6853) in Vulpecula was discovered in 1764 by the French astronomer Charles Messier. This planetary nebula lies at a distance of approximately 1,200 light years and is estimated to be approximately 3,500 years of age. The luminous )main) body of the planetary is approximately 6 arc-minutes in diameter and the halo surrounding it is approximately 15 arc-minutes. While observing the Dumbbell Nebula I noted bright knots within the main body of the nebula, especially over the eastern half of the nebula (as visible in the inset sketch at 210x). This was one of my best views of the Dumbbell Nebula to date.

A digital image produced in Pixelmator.

Carlos

Attached Files



#2 CarlosEH

CarlosEH

    Fly Me to the Moon

  • *****
  • Posts: 7171
  • Joined: 19 Jan 2005
  • Loc: Pembroke Pines, Broward County, Florida

Posted 12 November 2009 - 05:51 PM

The globular cluster M15 (NGC 7078) was discovered by the French astronomer Jean-Dominique Maraldi in 1746 and catalogued by Charles Messier in 1764. This globular cluster, located in Pegasus, lies at approximately 33,600 light years from the Sun and is estimated to be 13.2 billion (thousand million) years of age (one of the oldest known globular star clusters). M15 appeared as a stellar explosion in the eyepiece field with a bright central core and a multitude of faint stars at the periphery.

A digital image produced in Pixelmator.

Carlos

Attached Files



#3 Tommy5

Tommy5

    Mercury-Atlas

  • -----
  • Posts: 2814
  • Joined: 28 Mar 2004
  • Loc: Chicagoland

Posted 12 November 2009 - 07:46 PM

wow outstanding dumbell sketch very realistic it must have been a great sight in your scope.

#4 markseibold

markseibold

    Surveyor 1

  • -----
  • Posts: 1572
  • Joined: 19 Jan 2008
  • Loc: Portland Oregon

Posted 12 November 2009 - 08:36 PM

Carlos

Both are excellent DSO sketches in the digital sketch medium. That Dumbell rendering looks 3~D and photographically real! :bow: :bow: :bow: You must have really enjoyed this sketching session.

You have become the digital sketch master extraordinaire!

Yes I wish I too had been sketching more seriously when I attended the Oregon Star Parties a decade ago. Several hundred of us observed the Milky Way in the darkest skies on the continent in Central Oregon as similar to your photo link. Hardly no one was sketching then at our location in the early 1990's; only observing. A few did astrophotography.

Keep up the great sketch-work!

-Mark

#5 CarlosEH

CarlosEH

    Fly Me to the Moon

  • *****
  • Posts: 7171
  • Joined: 19 Jan 2005
  • Loc: Pembroke Pines, Broward County, Florida

Posted 12 November 2009 - 09:14 PM

Mark and Tommy,

Thank you both for the compliments on my Dumbbell Nebula and M15 observations. I was fortunate to have viewed both objects under excellent sky conditions. The Dumbbell Nebula was especially exciting to observe. So much detail was visible over this planetary nebula.

I resubmitted my M15 observation as the one I originally uploaded was a faulty version.

Carlos

#6 frank5817

frank5817

    Cosmos

  • *****
  • Posts: 8380
  • Joined: 13 Jun 2006
  • Loc: Illinois

Posted 12 November 2009 - 09:58 PM

Carlos,
The observing and sketching part of the vacation was a complete success. :cool:
These are a real treat to see here. You have done a magnificent job capturing this great planetary nebula and globular cluster. :bow: I see you did indeed capture much detailed structure in M 27. Thanks so much for posting these super drawings.:waytogo: It is always so nice to see what you are going to do next.

Frank :)

#7 cpl43uk

cpl43uk

    Messenger

  • -----
  • Posts: 412
  • Joined: 09 Feb 2008
  • Loc: Bristol, UK

Posted 13 November 2009 - 03:11 AM

Carlos - as always great sketches. Personally I am very impressed with the M15. I know these globulars are hard to present as they appear in the eyepiece - as confused central blurs with speckle starlight points in the foreground and you have captured this beautifully.

#8 lunartic65

lunartic65

    Messenger

  • *****
  • Posts: 477
  • Joined: 26 Dec 2006
  • Loc: Dublin Ireland

Posted 13 November 2009 - 06:37 AM

Fantastic sketches Carlos, I love M15, you managed to capture details down to the core.

You're setting a high bar for the rest of us.

#9 Shannon s

Shannon s

    Ranger 4

  • -----
  • Posts: 385
  • Joined: 21 Jun 2009
  • Loc: Bartow FL.

Posted 13 November 2009 - 02:05 PM

Absolutely stunning! :bow: :bow: :bow: :bow: :bow: :bow:

#10 Special Ed

Special Ed

    Fly Me to the Moon

  • *****
  • Posts: 6952
  • Joined: 18 May 2003
  • Loc: Greenbrier Co., WV 38N, 80W

Posted 13 November 2009 - 03:10 PM

Nicely done, Carlos. These digital renderings have a unique look--especially the Dumbbell.

#11 CarlosEH

CarlosEH

    Fly Me to the Moon

  • *****
  • Posts: 7171
  • Joined: 19 Jan 2005
  • Loc: Pembroke Pines, Broward County, Florida

Posted 13 November 2009 - 08:47 PM

Thank you all for the kind compliments on my Dumbbell Nebula and Mi15 observations. It was fun observing these two interesting objects. I was able to make out the detail noted in my sketches due to steady and dark skies. The best of luck in all of your observations.

Carlos

#12 nunciusaustralis

nunciusaustralis

    Ranger 4

  • -----
  • Posts: 393
  • Joined: 25 Sep 2009
  • Loc: Rio de janeiro, Brazil

Posted 13 November 2009 - 10:40 PM

Both are amazing Tnks for sharing. M15 looks real with lot of depth. :bow:

#13 JayKSC

JayKSC

    Vanguard

  • *****
  • Posts: 2093
  • Joined: 01 Jan 2005
  • Loc: Florida

Posted 13 November 2009 - 11:06 PM

Stunning sketches, Carlos. I'm a bit jealous over the skies you enjoyed, too! All the while, I've been stuck down here in sky-glow saturated South Florida. Thanks for sharing your sketches, both seem as though I'm looking through my own telescope - though in better skies.

- Jay
South Florida

#14 Jef De Wit

Jef De Wit

    Mercury-Atlas

  • *****
  • Posts: 2731
  • Joined: 06 Mar 2009
  • Loc: Hove, Belgium

Posted 14 November 2009 - 08:53 AM

Long live very dark skies! Beautiful observations.
But I see a lot of weak dots at the background of your M15-sketch. When it are faint stars, they are drawn to big. When it are bright stars, they are drawn to weak. I don't understand... :question:

#15 CarlosEH

CarlosEH

    Fly Me to the Moon

  • *****
  • Posts: 7171
  • Joined: 19 Jan 2005
  • Loc: Pembroke Pines, Broward County, Florida

Posted 14 November 2009 - 09:30 AM

Jay and Nuncius,

Thank you for the compliments on my Dumbbell Nebula and M15 observations. I was happy to be able to view these DSO's under dark skies. The amount of detail visible was impressive. The best of luck in your own observations.

Carlos

#16 Michael & Louise

Michael & Louise

    Vostok 1

  • -----
  • Posts: 160
  • Joined: 02 Jun 2008
  • Loc: Calgary, Alberta

Posted 15 November 2009 - 12:24 AM

Beautiful sketches Carlos! Liked the M15 sketch, well captured.

#17 JayinUT

JayinUT

    I'm not Sleepy

  • *****
  • Posts: 3933
  • Joined: 19 Sep 2008
  • Loc: Utah

Posted 15 November 2009 - 12:48 AM

Carlos,

Your sketching is like a fine wine that continues to improve with age. Absolutely stunning is correct. M15 I hope you enter that one into the sketching contest.

#18 Jeff Young

Jeff Young

    Aurora

  • *****
  • Posts: 4518
  • Joined: 04 Aug 2005
  • Loc: Ireland

Posted 16 November 2009 - 12:55 PM

Nice ones, Carlos. M15 is outstanding!

-- Jeff.

#19 CarlosEH

CarlosEH

    Fly Me to the Moon

  • *****
  • Posts: 7171
  • Joined: 19 Jan 2005
  • Loc: Pembroke Pines, Broward County, Florida

Posted 17 November 2009 - 10:37 AM

Jay, Jeff, Louise, and Michael

Thank you all for your kind compliments on my Dumbbell Nebula and M15 observations. I am happy that my digital renderings are improving with time. It is exciting to observe and render astronomical objects using all types of media, but I enjoy the digital one as well. The best of luck in your own observations.

Carlos

#20 jayscheuerle

jayscheuerle

    Aurora

  • *****
  • Posts: 4675
  • Joined: 16 Jan 2006
  • Loc: S. Philadelphia, PA

Posted 17 November 2009 - 11:28 AM

LOVE the realism, Carlos. Very inspiring! - j

#21 CarlosEH

CarlosEH

    Fly Me to the Moon

  • *****
  • Posts: 7171
  • Joined: 19 Jan 2005
  • Loc: Pembroke Pines, Broward County, Florida

Posted 17 November 2009 - 11:34 AM

Jay,

Thank you for the compliment on my Dumbbell Nebula and M15 observations. It was exciting to see so much detail over these two objects. The best of luck in your own observations.

Carlos






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics