K-Tec

My 2nd Image of the season - NGC7635 - Bubble Nebula

  • CarlightExpress
  • Topic Author
  • Offline
  • Main Sequence
  • Main Sequence
More
12 years 3 months ago #95088 by CarlightExpress
My 2nd image of the 2012-2013 season NGC7635 The Bubble Nebula

www.flickr.com/photos/30345959@N08/8012799003/in/photostream

The Image consists of:
26x 5min Exposures @ ISO 1600
19x Dark Frames
47x Flat Frames

Equipment used:
Astro Tech AT8RC Imaging Scope
Skywatcher NEQ6Pro GEM Mount
Canon 500D Modified and Cooled to -15 Degrees C
QHY5 Guide camera on Off Axis Guider

Software used:
Image Acquisition: BackyardEOS www.backyardeos.com
Stacking and Pre-Processing: Nebulosity
Post Processing: Photoshop and Noise Ninja

Simon
The following user(s) said Thank You: michael_murphy, wbean, markrgriffin

Please Log in or Create an account to join the conversation.

More
12 years 3 months ago #95091 by lunartic_old
Fantastic Simon, an object that actually looks like what it's named. :laugh:

Paul

Programming today is a race between software engineers striving to build bigger and better programs, and the universe trying to produce bigger and better idiots. So far, the universe is winning.

Rich Cook
The following user(s) said Thank You: CarlightExpress

Please Log in or Create an account to join the conversation.

More
12 years 3 months ago #95097 by Nerro
Another exelent one Simon!You are raising the bar quite high for us :) well done.
The following user(s) said Thank You: CarlightExpress

Please Log in or Create an account to join the conversation.

More
12 years 3 months ago #95106 by dave_lillis
fab image !!

Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)

Carrying around my 20" obsession is going to kill me,
but what a way to go. :)
+ 12"LX200, MK67, Meade2045, 4"refractor
The following user(s) said Thank You: CarlightExpress

Please Log in or Create an account to join the conversation.

More
12 years 3 months ago #95107 by dmcdona
Simon

Out of interest, how did you decide on the numbers of cal frames (darks and flats)? And how do you take your flats? And how long did the processing take you?

The image itself is very good indeed. It just shows how the DSLR cameras are able to admirably compete with CCD's.

Dave
The following user(s) said Thank You: CarlightExpress

Please Log in or Create an account to join the conversation.

  • CarlightExpress
  • Topic Author
  • Offline
  • Main Sequence
  • Main Sequence
More
12 years 3 months ago #95108 by CarlightExpress
Replied by CarlightExpress on topic Re: My 2nd Image of the season - NGC7635 - Bubble Nebula

dmcdona wrote: Simon

Out of interest, how did you decide on the numbers of cal frames (darks and flats)? And how do you take your flats? And how long did the processing take you?

The image itself is very good indeed. It just shows how the DSLR cameras are able to admirably compete with CCD's.

Dave


Hi Dave

I take my flats using an EL panel, or I use the sky (if it's clear), I have also used an illuminated blank wall before as well, and try and aim in Nebulosity to have the peaks about 1/3 across the histogram by adjusting the exposure times, I would use the AV FLat mechanism in BackyardEOS but that would mean opening up the cooler box and switching the dial to AV which I do not really want to do

The number of darks is dependent on wether the camera is cooled or not, with the cooled camera since the standard deviation doesn't really change betweeen the darks, I result in only having to do around 19, before I got into cooling the camera I used to have to take at least 45 darks.

The number of flats I typically go for 45+ because they take no time at all to grab (the longest part is the downloading of the image fromt he camera :)

Simon
The following user(s) said Thank You: wbean

Please Log in or Create an account to join the conversation.

Time to create page: 0.128 seconds
Powered by Kunena Forum