A Space & astronomy forum. SpaceBanter.com

Go Back   Home » SpaceBanter.com forum » Others » Astro Pictures
Site Map Home Authors List Search Today's Posts Mark Forums Read Web Partners

Annual Gyulbudaghian's Nebula comparison image



 
 
Thread Tools Display Modes
  #1  
Old February 16th 17, 06:43 PM
WA0CKY WA0CKY is offline
Senior Member
 
First recorded activity by SpaceBanter: Feb 2008
Posts: 689
Default Annual Gyulbudaghian's Nebula comparison image

This is my annual image of the variable nebula around PV Cephi often called Gyulbudaghian's Nebula. Conditions were very poor allowing me only 4 luminance frames through a lot of gunk so it doesn't go as deep as normal that uses 8 frames of luminance data. The color data was severely hit by gunk and is augmented with color data from prior years just to get something. This causes some issues around the top right edges where due to a bit different camera rotation I had to go with only this years color data. Due to the gunk and half the usual exposure time it doesn't go as deep. Still I think it shows the changes since November 2015. It's obvious this nebula changes much more rapidly than I am capturing by taking it once a year (twice in 2015). I'd planned on at least 4 this year but my continuing to worsen weather had other ideas. I had to grab this one through gunk as it was about to go behind some trees to the north west. Also it was moving into my ham antennas which would make lots of nasty diffraction spikes on even rather dim stars. So this will have to do for this year.

14" LX200R @ f/10, L=4x10' RGB=2x10' (plus prior years data), STL-11000XM, Paramount ME

Rick
Attached Thumbnails
Click image for larger version

Name:	PV_CEP2011-2016.JPG
Views:	700
Size:	192.0 KB
ID:	6521  Click image for larger version

Name:	PV2016L4X10RGB2X10.JPG
Views:	446
Size:	531.5 KB
ID:	6522  
  #2  
Old February 18th 17, 01:43 PM
slilge slilge is offline
Senior Member
 
First recorded activity by SpaceBanter: Aug 2008
Posts: 151
Default

Rick,

that's a great series of this interesting object.
I have it on my list of course but wanted to wait for a night of very good seeing and somehow never managed to capture it.

Stefan
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Gyulbudaghian's Nebula WA0CKY Astro Pictures 0 November 4th 15 07:44 AM
Gyulbudaghian's (variable) Nebula revisted for the 3rd time WA0CKY Astro Pictures 1 February 2nd 15 11:05 PM
ASTRO: Gyulbudaghian's Nebula Revisited -- It does change Rick Johnson[_2_] Astro Pictures 1 June 19th 14 10:47 PM
Annual image of Hubble's Variable Nebula WA0CKY Astro Pictures 0 September 15th 13 03:36 AM
ASTRO: Gyulbudaghian's (Variable) Nebula Rick Johnson[_2_] Astro Pictures 3 September 15th 12 05:00 AM


All times are GMT +1. The time now is 08:04 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 SpaceBanter.com.
The comments are property of their posters.