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

M27 The Dumbbell Nebula in 90 seconds

  • Please log in to reply
7 replies to this topic

#1 cometcatcher

cometcatcher

    Mariner 2

  • -----
  • topic starter
  • Posts: 249
  • Joined: 04 Jan 2005
  • Loc: Mackay Australia

Posted 17 July 2017 - 08:45 AM

M27 The Dumbbell Nebula, single 90 sec sub, taken between clouds. GSO 10" F4 Newtonian, Full spectrum Canon 1100D, Baader UV/IR cut filter, HEQ5 Pro unguided. Processed in Photoshop. Bigger but not really better at Astrobin ---> http://astrob.in/303653/0/

 

"The Dumbbell Nebula (also known as Apple Core Nebula, Messier 27, M 27, or NGC 6853) is a planetary nebula in the constellation Vulpecula, at a distance of about 1,360 light-years.

This object was the first planetary nebula to be discovered; by Charles Messier in 1764. At its brightness of visual magnitude 7.5 and its diameter of about 8 arcminutes, it is easily visible in binoculars, and a popular observing target in amateur telescopes.

 

The Dumbbell Nebula appears to be shaped like an prolate spheroid and is viewed from our perspective along the plane of its equator. In 1992, Moreno-Corral et al. computed that its rate of expansion in the plane of the sky was no more than 2.3" per century. From this, an upper limit to the age of 14,600 yr may be determined. In 1970, Bohuski, Smith, and Weedman found an expansion velocity of 31 km/s. Given its semi-minor axis radius of 1.01 ly, this implies that the kinematic age of the nebula is some 9,800 years."

 

M27_90secs_1200.jpg


  • jgraham, torn8o, Ron359 and 15 others like this

#2 Allanbarth1

Allanbarth1

    Messenger

  • -----
  • Posts: 486
  • Joined: 29 Apr 2016
  • Loc: Central New Jersey

Posted 17 July 2017 - 10:48 AM

Great photo, the color is amazing. 



#3 cometcatcher

cometcatcher

    Mariner 2

  • -----
  • topic starter
  • Posts: 249
  • Joined: 04 Jan 2005
  • Loc: Mackay Australia

Posted 17 July 2017 - 09:05 PM

Great photo, the color is amazing. 

Thanks Allan!



#4 nickcodybarrett

nickcodybarrett

    Viking 1

  • *****
  • Posts: 801
  • Joined: 17 Apr 2016
  • Loc: Pattison, Ms (a.k.a dark sky heaven)

Posted 18 July 2017 - 10:28 PM

Simplicity at it's finest.



#5 cometcatcher

cometcatcher

    Mariner 2

  • -----
  • topic starter
  • Posts: 249
  • Joined: 04 Jan 2005
  • Loc: Mackay Australia

Posted 19 July 2017 - 07:39 AM

Simplicity at it's finest.

 

If only it worked with everything...


  • nickcodybarrett likes this

#6 jgraham

jgraham

    Hubble

  • *****
  • Posts: 17893
  • Joined: 02 Dec 2004
  • Loc: Miami Valley Astronomical Society

Posted 19 July 2017 - 07:51 AM

Fantastic! Nicely done. This is a good example of why cameras make such good eyepieces. :)



#7 Ron359

Ron359

    Viking 1

  • *****
  • Posts: 757
  • Joined: 21 Apr 2008
  • Loc: -105 +39

Posted 19 July 2017 - 09:54 AM

Fantastic! Nicely done. This is a good example of why cameras make such good eyepieces. smile.gif

+1 on John's comment.  You should post your image in the EAA forum.  It will drive them nuts! wink.gif



#8 cometcatcher

cometcatcher

    Mariner 2

  • -----
  • topic starter
  • Posts: 249
  • Joined: 04 Jan 2005
  • Loc: Mackay Australia

Posted 19 July 2017 - 11:08 AM

I was actually thinking to myself this short time integration isn't far from EAA, (which I used to do 20 years ago).




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.







Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics