Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

Sp@ce_d

Think it's been a while! NGC7635 Ha (12.5hrs WIP)

Recommended Posts

Well, I can't remember the last time I actually posted an image. Not this year & I don't remember anything of last year either! Whilst I've been collecting data over that period, I realise I get more of a kick out of the whole techy side of putting the bits together, automating it all & capturing the data. When it comes to processing I never seem to have the time & patience & just end up frustrating myself overcooking things when I do.

I thought it about time to have another go & soon realised anything I actually had once known was long forgotten. So, I've been reading through Warren Keller's Inside PixInsight & thought I'd practice on some 12.5 hrs of data on NGC7635 collected over the 5th - 10th of this month. As I'm about to post this I can already see quite a few things need sorting out in the next version & I think I need to go back & start again but hey ho, I'll post it anyway otherwise it'll be next year before I know it! I've also got 14.5 hrs of SII & over 15 hrs of OIII plus a couple of hours or so each of RGB for the stars. I've thrown more away! So you can imagine, I've no idea when I'll get around to the full image! Tips & critique welcome as usual please...

Scope: RC8 with AP 0.67 reducer

Camera: Atik 314L+

Filter: Astrodon 5nm Ha

Subs: 50 x 900

Processed in PixInsight

NGC7635 The Bubble Nebula by Sp@ce_d

  • Like 5

Share this post


Link to post
Share on other sites

Excellent bubble... That is a long amount of time spent on the data... I'd love to see it all combined into color.

 

Share this post


Link to post
Share on other sites
1 hour ago, MarsG76 said:

Excellent bubble... That is a long amount of time spent on the data... I'd love to see it all combined into color.

 

Cheers... the best thing I did, automating the obsy. I was gobsmacked when I added up the time too. It just shows how often there’s a gap in the clouds & it springs into life while I’m tucked up in the warm. If I relied on the weather forecast I’d have had nothing. The thrill is in the chase! ... as they say ?

Share this post


Link to post
Share on other sites
2 hours ago, Sp@ce_d said:

Cheers... the best thing I did, automating the obsy. I was gobsmacked when I added up the time too. It just shows how often there’s a gap in the clouds & it springs into life while I’m tucked up in the warm. If I relied on the weather forecast I’d have had nothing. The thrill is in the chase! ... as they say ?

I hear you... ever since I've built my obsy I could get exposing subs more often, longer subs, and even do it after a late finish at work when it's clear since it's setup.

as far as stopping exposure when clouds cover the object, that's only controlled by APT, or was until I destroyed the USB port on my modded 40D by a cable snag!!! But I tend to expose when it's clear.

i too just set it and went to sleep, surprisingly all subs are usable...

 

next part for the obsy is rain detect and get it to roll itself shut to protect the gear.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By matthasboldlygone
      First night - missed the target and took lots of images of some nearby stars
      Second night - 35 x 2 min
      Third night - 60 x 2 min
      I've tried stacking the two nights separately and all together to give a total of 3 hours, but the stacked images all turn out roughly same. Think I must be limited somewhere else and the extra data isn't being captured. The best of the batch was a very quick process of night 3, 2 hours. I was happy to see the bubble shape and a bit of cloudy bits 👍
       
      Bresser AR 102/600 - Bresser HD camera - Stacked in Siril, simple process in Pixinsight
    • By gorann
      I spent Friday night collecting 13 hours on the well known Bubble nebula (NGC7635) together with two less known emission nebulas, Sh2-159 (down to the right) and NGC7538 (upper right). Aladin Sky Atlas gives no name for the black nebulosity in the centre.
      RGB collected with Esprit 150 and ASI071 (75 x 5 min). Ha collected with Esprit 100 and ASI1600 (27 x 15 min, Baader 3.5 nm Ha). Both side my side on the Mesu200 in my obsy. Ha added to the red channel in blend mode Lighten as 50%.
      The Bubble nebula came clearly out as more bluish-red than the others so expect there may be quite a bit of Oiii in it.
      Clouds moved in at 0100 and they have apparently decided to remian for at least a week.....
       
       
       

    • By alan4908
      In an effort to improve on my image of the Bubble Nebula from a few years ago, I decided that my existing data needed a longer integration time...... so at a total integration time of just over 26 hours here's the result.  The image, taken with my Esprit 150, is an LRGB rendition with an Ha blend into the Red and Lum channels.  I was particularly interested in seeing how much detail I could extract on the bubble itself, so I decided that it looks best cropped. 
      Alan

       
       
      LIGHTS: L: 33, R: 27, G:27, B:23 x 600s, Ha:16 x1800s, BIAS:100, DARKS:20, FLATS:40 all at -20C. 
       
    • By Greg_1920
      Hello, this is my first attempt on NGC 7635 with my skywatcher 250pds on an NEQ6 synscan mount. These are 7min subs stacked to a total exposure of 5 hours taken with my unmodified canon 700d and a skytech cls filter. No coma corrector was used as I haven't gotten one yet. I'm just wondering how I could make my images look clearer when zoomed in and improve them overall as I can see the image gets more blurry when I zoom in onto the bubble, should I use a higher magnification? Do I need to take more darks to get rid of the redness around the image ? Or perhaps I stretched the image too much in Photoshop? I used 10 darks, 60 bias and 60 flat frames. 
      Update: I have now further processed my image with greater care and got a much better result. 
      Thanks 
      Greg
       
       


    • By alexbb
      The bubble nebula. Not much to add about the target itself as it is already popular enough.
      A combination of HOO shot with the ASI1600MMC + Astronomik narrowband filters through the 200mm newtonian tube removed from the dobson base and put on the EQ6-R.
      About 6h of exposure through the Oxygen filter and about 9h through the Hydrogen filter.
      Clicking on the pictures will redirect to the astrobin images where you can watch them in full resolution.
      Crop close-up

      And widefield

       
      Thanks for watching and clear skies to you too!
      Alex
×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.