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.

sgl_imaging_challenge_celestial_motion.thumb.jpg.a9e9349c45f96ed7928eb32f1baf76ed.jpg

alexbb

another Heart and Soul 2 panel - HOO

Recommended Posts

It seems that none of my glass optics doesn't want to play nice anymore. I started this 2 panel mosaic while shooting for the bubble area, on Ha, with the Canon 300 F4 L lens. In the beginning it went better, but at some point the IS elements decolimated and I just couldn't luckily align it ok again (by attaching back to the camera and focusing with the IS on and then detaching it). I tried one round with the O3, but then I switched to the Tair 3s.

The total on this target is like this: 6 h of Ha on each panel, 1:x h of Canon O3 + 1:15 of Tair O3 on each panel. That means ~17h in total. I might want to try to add more O3, but it's only a hope. The moon comes again and the forecast doesn't seem nice the next days.

I need a proper scope.

I think now that the Soul is stretched more than the Heart, it didn't seem last night.

Full res here: https://drive.google.com/open?id=0ByhJ_xuQxcnjZlQ2Rkw3NUR2S0U

Thoughts welcomed.

Clear skies,

Alex

IC1805-IC1848-F300-2017-07-25-HaO3-p01.jpg

IC1805-IC1848-F300-2017-07-19-Ha-p01.jpg

  • Like 12

Share this post


Link to post
Share on other sites

Thank you all!

6 minutes ago, michael.h.f.wilkinson said:

I think the colour rendition in the first is particularly natural looking

I'm aiming usually for something looking more natural, though I don't follow any rule in particular for this.

The second image is Ha only.

If possible, I'll try to add some RGB too for the stars, but I feel I'm stretching too far. I could finish during 2 clear nights and add some O3 too.

The forecast seems to change, but I should keep my fingers calm as last time when I bragged about this I was punished.

Share this post


Link to post
Share on other sites
On ‎26‎/‎07‎/‎2017 at 12:32, moise212 said:

Thank you all!

I'm aiming usually for something looking more natural, though I don't follow any rule in particular for this.

The second image is Ha only.

If possible, I'll try to add some RGB too for the stars, but I feel I'm stretching too far. I could finish during 2 clear nights and add some O3 too.

The forecast seems to change, but I should keep my fingers calm as last time when I bragged about this I was punished.

Nie picture. Still early days for these targets as they will be higher up over the coming months. So plenty of time to capture some RGB data.

Share this post


Link to post
Share on other sites

Thank you, both!

8 minutes ago, Droogie 2001 said:

Still early days for these targets as they will be higher up over the coming months. So plenty of time to capture some RGB data.

Yeah, that's not working for me. I image from my balcony and I have limited view of the targets. Some of the targets are visible until the top window frame gets in the view - that's about 55 degrees in altitude, others - like these ones - are hindered by the lateral margins of the window frame.

Anyways, first try below. The Tair is not the best piece of glass. It works better in narrowband, but in broadband blue is just a tad better than the bottom of a glass bottle. Moreover, the Tair has exactly 300mm FL, whereas the Canon has 293mm. I couldn't fit all the Soul with the Tair when shooting the RGB. I have to take some more.

https://drive.google.com/open?id=0ByhJ_xuQxcnjcEt5ajNDQTFtSEE

Clear skies!

Alex

IC1805-IC1848-F300-2017-07-25-HaO3-F300-2017-07-28-RGB_p02.jpg

Share this post


Link to post
Share on other sites

Damn window frames! I have similar issues when targets move further South, though this is my neighbours house...

Good luck.

Share this post


Link to post
Share on other sites

A week ago I shot some more RGB more on the left side so now the soul is not cropped anymore. Now that I came back home, I also reprocessed the Ha so now the soul is about as bright as the heart.

The results might be not the final ones, especially if you have some tips and I also shot some S2, but this one does not fit very well with the others so I have to shoot some more.

HOO and RGB(stars)-HOO(nebula). And Ha only.

Links to full resolution too:

https://drive.google.com/open?id=0ByhJ_xuQxcnjQXg2Q2t4bXFVSms
https://drive.google.com/open?id=0ByhJ_xuQxcnjYk5UWkdmUVJtb28
https://drive.google.com/open?id=0ByhJ_xuQxcnjdlJ1MFZzSnBOVzg

Clear skies!

Alex

IC1805-IC1848-F300-2017-08-01-HaO3-p01.jpg

IC1805-IC1848-F300-2017-08-01-RGB-HaO3_p01.jpg

IC1805-IC1848-F300-2017-08-01-Ha-p02.jpg

Edited by moise212

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Recently Browsing   0 members

    No registered users viewing this page.

  • Similar Content

    • By AstroRuz
      As new condition ultra narrowband 1.25" Baader filter. 3.5nm bandpass for nice small stars.
      Bought and loved it, but planning on going from mono back to OSC so won't have a use for this narrow a bandpass.
       
      £130



    • By AstroRuz
      Selling my full narrowband set up for multiple reasons: I could do with the money and mono just isn't really doing it for me.
      £1000
      Includes:
      Altair Astro 183m Tec
      Baader Narrowband filters (Ha, OIII, SII and Clear)
      ZWO Electronic Mini Filter Wheel
      All associated cables/plugs
      T2 extensions to reach 55mm back focus for use with reducers
      Boxes and cases
      There is a scratch on the T2-T2 adaptor for the filter wheel and a couple of the labels on the filter boxes have been torn. But otherwise the important parts work perfectly well.
      Collection or postage via DPD.
      Buyer to pay postage and PayPal fees.
      No offers currently accepted, and I would rather not split








    • By tooth_dr
      I scrapped all the Oiii and Sii data I previously took during a full moon (about 15 hours worth) and retook it all when the moon was a bit smaller at 76%.  Ha was taken during 98% and 67% moon.  All the lights were taken on the following nights: 12th, 19th and 20th September 2019.
      Integration times, all in 600s subs unbinned:
      Ha = 28.33 hours
      Oiii= = 5.67 hours
      Sii = 5.67 hours
       
      The Ha data is really nice, and unsurprisingly the Oiii and Sii is not as strong (or nice).
      I'm missing that (vital) step in my processing routine of getting the Sii and Oiii properly stretched to match the Ha, before combining.  I dont really know how to deal with the weaker data properly.  Any pointers would be appreciated.
      What I do currently:
      All the data is loaded into APP into separate channels/sessions.
      The data is stacked and registered against the best Ha sub
      This produces individual stacks of Ha, Sii and Oiii that are all registered
      Each channel is processed with DPP in APP and then saved as a 16bit TIFF
      Each is opened in PS
      Stars removed with AA and any remnants removed and tidied up
      I then open a blank RGB document in PS
      I paste Ha into Green, Sii into Red and Oiii into Blue
      Adjust the selective colour settings to get 'Hubble palette'
      Adjust levels, curves, saturation until looks ok
      All the Ha Sii Oiii data is then combined together in a single 'super' stack in APP using quality weighted algorithm to create a 'luminance'
      That luminance layer is adjusted using levels, curves, and NC tools such as local contrast enhancement and deep space noise reduction (using masks to apply as required)
      The luminance is pasted onto the above colour layer, and incrementally added using gaussian blur
      Cropped and saved.
       
       
      Here it is anyway   I haven't intended on any more exposure time for this one, but will consider it, if the expert opinion dictates otherwise!
       
      CS
      Adam
       


    • By widotje
      Hifolks,
      Here's my take on IC1396, let me know what you think.
      In total 7.5 hours exposure time using narrowband Ha, Sii, Oiii.
      Post processing in photoshop and lightroom.
       
      Thanks for watching, clear skies!
       

       
    • By Gib007
      THIS ITEM HAS NOW BEEN SOLD.
      This listing is for my personal narrowband filters (Kayron from Light Vortex Astronomy). They are the Astrodon Hydrogen-Alpha (HA), Oxygen-III (OIII) and Sulphur-II (SII) 3nm 1.25" narrowband set. These are considered the highest-end narrowband filters money can buy, able to produce images of exceptional quality and incredible sharpness, cutting through a vast amount of light pollution. The 3nm variants featured here are fantastic for pulling out fine nebulous structures clearly above background. For more information, please see Astrodon's website:
      https://astrodon.com/products/astrodon-narrowband-filters/
      Please note that these three filters together currently retail at just over £1,710 from UK suppliers, €2,180 from European suppliers or $1,690 from US suppliers. Payment is preferred via bank transfer but PayPal is OK with an extra 2.9% to cover PayPal fees. I'll cover postage to you via tracked Courier. 
      I welcome any questions you may have regarding this listing. Thank you for looking. 


×
×
  • Create New...

Important Information

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