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_banner_lunar_landings.thumb.jpg.b50378d0845690d8a03305a49923eb40.jpg

alexbb

First Orion for this season

Recommended Posts

Hello all!

I acquired yesterday the third hydrogen panel of this area. I might add 2 more below, in landscape. We shall see how the weather plays. 2.5h each panel in 300s subs at unity gain. And some 30s exposures for the core. Camera is ASI1600MMC on the Canon 300 F4 L lens, cooled to -15C. And first successful try with the Astro Pixel Processor, though, the stacks were made with DSS. I just purchased APP and I didn't restack them.

I'm not sure if I should add more hydrogen data or move to oxygen and then LRGB. I still have time to decide until Feb-March.

More details: http://www.astrobin.com/317154/

Comments welcomed.

Clear skies,

Alex

IC434-M42-F290-2017-10-16-Ha_p02.jpg

IC434-M42-F290-2017-10-16-Ha_p03.jpg

IC434-M42-F290-2017-10-20-Ha_p02_crop.jpg

IC434-M42-F290-2017-11-24-Ha_p05.jpg

Edited by moise212
new image added
  • Like 18

Share this post


Link to post
Share on other sites

Stunning mono image of this area. LRGB may be difficult with those bright stars in the field of view.

  • Thanks 1

Share this post


Link to post
Share on other sites

That's great!!! I love the detail in this ..... Ha really does sing in this area for sure :) 

  • Thanks 1

Share this post


Link to post
Share on other sites

That's a cracker, an absolute cracker.

I agee that you may struggle to keep the stars down in broadband but OIII should play well. I'd be wondering what a bicolour HaOIII would do with star colour from a quick RGB shoot, gently stretched.

These cameras are getting more tempting by the day.

Olly

  • Thanks 1

Share this post


Link to post
Share on other sites

That's a fabulous image Alex. I can't wait to get the Samyang on this area. 

1 hour ago, ollypenrice said:

These cameras are getting more tempting by the day.

I'd like to see what you could do with one. The Atik version of this is due out soon. 

  • Thanks 1

Share this post


Link to post
Share on other sites

Many thanks to you all!

I used the Optolong 7nm Ha filter.

I will shoot some O3 at some point and combine into HOO, but I still want to add some RGB, not only for stars. I feel sorry for NGC 2024 and 2023 not to have them as RGB. I might try to remove the stars from the RGB image, add it like this, colour the NB stars with the colour of the RGB ones and add the coloured stars back into the combination. Still, there's some time to wait for this.

I edited the first post and added a slight more stretched version.

And here's a version processed by a friend of mine: https://ibb.co/mbjAd6

Of all, which do you prefer?

Thank you again and clear skies,

Alex

Edited by moise212

Share this post


Link to post
Share on other sites

I felt that the horsey was a bit too close to the border so I shot 2 more panels below. The result is in the edited original post.

Share this post


Link to post
Share on other sites
Guest

Absolutely outstanding - can't wait to try nb on this object myself - but I'm not going to match this effort, ever! :-)

David

Share this post


Link to post
Share on other sites

Many thanks to you all!

David, it took me 5 nights, but I could have covered the same area with 4 panels only. All you need is a wide TS65, an ASI1600MMC, a Ha filter and 4 clear nights :p Now... where could you find those?!

Share this post


Link to post
Share on other sites

I shot 4 more panels to cover the same area and increase the SNR. Now for a total of more than 22 hours. The result is at the bottom in the edited original post.

Much smoother I think.

https://www.astrobin.com/317154/D/

And below the M42 core. 24x10s with the same Canon 300 F4 L IS, ASI1600MMC.

Thanks for looking and clear skies!

Alex

OrionCore-01.jpg

  • Like 2

Share this post


Link to post
Share on other sites

It's been a while since I started this, but I only had 5 usable nights for OIII and even with those, I was not able to acquire all what I wanted. The 2 OIII panels at the bottom are stacks of 20-22 x5 minutes subs. The ones at the top are 30-31 x5min. Anyway, there's not much oxygen at the bottom area.

I tried to lift a lot the blue around the flame and NGC2023, but without much impact to the flame.

The O3 filter is a pain, it reflects a lot. A lot. With the non AR coated sensor, I had huge halos, they are tamed down in the image below.

I could have sharpened more the core area, but I didn't want to exaggerate.

Ha as red-ish - 22.5h, O3 as cyan-blue - 9h. Perhaps still too red.

I don't even know what else to add to this description, it tired me a lot yesterday to process it and drained my energy since October.

Make sure you watch at full resolution. Here's also a direct link to an original: https://drive.google.com/open?id=17tr8lqagQAJg8maojtHZPbM-f67gSBTv

Any opinions are welcomed!

Clear skies!

Alex

IC434-M42-F290-2018-01-18-HOO-p08-crop.jpg

  • Like 1

Share this post


Link to post
Share on other sites
15 hours ago, StargeezerTim said:

You should start a new thread with that last image. It is absolutely awe inspiring, fabulous!

Many thanks, Tim! I think I should

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 MarsG76
      The Orion Nebula imaged in RGB through a Celestron 8" SCT at F10 (2032mm FL) using a full spectrum modded and cooled Canon 40D. Tracked using a Celestron CGEM mount. Total exposure time was 1 hour and 24 minutes.
    • By MarsG76
      Hello All,
      I was wondering whether it's possible to image a DSO and capture any depth. Every 3D astro image online is faked so at the start of the year, I decided to image M42 six months apart.
      Back in March I posted a image of M42 imaged at f10, 2032mm FL through my 8SE on 28th February 2019. Than on 3rd September (setup and captured 15 second subs on 1 September) I captured M42 at the same focal length, same orientation and very similar subs for a total exposure of 1 hr 24 minutes. This was almost to the day exactly 6 months between the two images, so the earth was 300 million km away from the original position on the other side of the sun, furthest I could hope for imaging a 3D stereo pair.
      First attached is the image from September...

       
      I color matched the above image with the image from February, aligned them and below is the end result....

      As you can see there is no detectable 3D effect... There was a 3Dish effect but this was most likely due to the differences in processing of the two stacks and when I SCALE and rotate the two images to align them, and hence no 3D effect.
      Of course the stars and nebula are certainly not on a flat plain so I believe that the reason for the lack of any discernable depth is simply due to the distance of M42 resulting in  a very small angular shift in the stars, so small in fact, that it’s beyond the sensitivity of my 8” SCT, camera pixel resolution and tracking accuracy of the CGEM.
      Calculation of the expected motion of any parallax shift when the Orion Nebula is 1344 lightyears away and the distance of Earth being 149,600,000km from the Sun:
      1344LY = 1.2715e+16km
      Θ° = Tan-1(149.6e+6/1.2715e+16)
      Parallax Shift Θ” = 2 x 3600 x Θ
      Parallax Shift Θ” = 0.0048536712567150
      An angular motion of 0.005” was not picked up by my system that tracks with an average accuracy of about 1” RMS, with a camera sensor that has a resolution of 1.16”/pixel at 2032mm focal length with a 8” SCT. Even if I could get consistent tracking at the best accuracy that I have ever seen with my gear, 0.38” RMS, this is still well above 0.005” and well beyond the 40D sensor pixel resolution, and all this is without considering atmospheric distortion, obviously my setup is not even close to sensitive enough.
      This was a good project but unfortunately the distances of objects in the universe are too great, even objects classed as in our celestial “backyard”. If I didn’t try this experiment than I would be always wondering and curiosity would most likely make me try it eventually.
       
      Clear Skies,
      MG
       
       
       
    • 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 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!
       

       
×
×
  • Create New...

Important Information

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