Home · Register · Join Upload & Sell

Moderated by: Fred Miranda
Username  

FM Forum Rules
Landscape Posting Guidelines
  

FM Forums | Landscape Photographer | Join Upload & Sell

  

Trifid Nebula (M20) in RGB with H-Alpha Added - A Close Up View

  
 
another_mikey
Offline
• • •
Upload & Sell: On
p.1 #1 · p.1 #1 · Trifid Nebula (M20) in RGB with H-Alpha Added - A Close Up View


Congratulations to another_mikey for winning Feature Thread of the Week with 18 votes - View Previous Winners


The Trifid Nebula is located in the constellation Sagittarius, approximately 9,000 light years away. The object was discovered by Charles Messier in 1764 as the 20th object in his catalogue. The regions contains an emission nebula (the reddish pink area), a reflection nebula (the blue regions), and some dark nebulae (the tendrils wafting through the central star forming emission region and also contained in portions of the reflection nebula as well).

I originally was thinking I might need more data on this, but after starting to process what I had I changed my mind. Sometimes things come together even better than you had hoped for. One interesting optical illusion is the area in the blue reflection nebulosity to the left of center - my brain wants to see a single 'eye' peering out through the twisted blue clouds of gas - do you see it as well?

This image was made using RGB filters for the main image with Hα data added in, and shorter RGB exposures used for the stars.

Equipment:
ZWO ASI1600MM-C Camera @ -10C and Gain:139 Offset:21 (LRGB)
Gain:200 Offset:50 (H-alpha)
Software Bisque MyT Mount
Celestron EdgeHD 9.25 SCT with 0.7x reducer, 1645mm @ f/7

Software:
PHD2 Guiding Software
NINA Astroimaging Software
Pixinsight Commercial Version 1.8
Software Bisque TheSkyX
Lightroom CC
Photoshop CC
Russell Croman BlurXterminator
Russell Croman StarXterminator
Russell Croman NoiseXterminator

Light Frames:
Hα: 9 x 420 secs (1 hr 03 mins)
Red: 19 x 300 secs (1 hr 35 mins)
Red: 18 x 30 secs (9 mins)
Green: 22 x 300 secs (1 hr 50 mins)
Green: 21 x 30secs (10 mins 30 secs)
Blue: 19 x 300 secs (1 hr 35 mins)
Blue: 23 x 30 secs (11 mins 30 secs)

6 hrs 34 mins total

Dark Frames:
10 x 420 secs, Hα (1hr 10 mins)
10 x 300 secs, RGB (50 mins)
10 x 30 secs, RGB (5 mins)

Bias Frames:
60





Trifid Nebula (M20) in RGB with Hα Added




Jul 01, 2023 at 12:34 PM
junglialoh
Offline
• • • • •
Upload & Sell: On
p.1 #2 · p.1 #2 · Trifid Nebula (M20) in RGB with H-Alpha Added - A Close Up View


Amazing nebula! well taken beautifully


Jul 01, 2023 at 03:43 PM
erielake
Offline
• • •
Upload & Sell: Off
p.1 #3 · p.1 #3 · Trifid Nebula (M20) in RGB with H-Alpha Added - A Close Up View


such a beautiful nebula and excellent processing, nicely done


Jul 02, 2023 at 09:36 AM
Danpbphoto
Offline
• • • • • • •
Upload & Sell: On
p.1 #4 · p.1 #4 · Trifid Nebula (M20) in RGB with H-Alpha Added - A Close Up View


Fantastic composition! Extremely detailed and the scale is wonderful.

I was an astro-photographer very long ago. I loved it!
Dan







Jul 02, 2023 at 12:42 PM
dclark
Offline
• • • • •
Upload & Sell: On
p.1 #5 · p.1 #5 · Trifid Nebula (M20) in RGB with H-Alpha Added - A Close Up View


Excellent image!
The work of skilled astro photographers is always a pleasure to see.
Yes, I see the eye and the brow. Looks like a primate or maybe a dog. Just to the left of that is a cat, looks like my cat Gus.
I see lots of other stuff, but if I describe it all I'm afraid someone will send the welcoming committee from the local funny farm.

Dave



Jul 02, 2023 at 02:47 PM
Aztatlan
Offline
• • •
Upload & Sell: Off
p.1 #6 · p.1 #6 · Trifid Nebula (M20) in RGB with H-Alpha Added - A Close Up View


Sensational. Looks really good for only a bit over 6.5 hrs at f7.


Jul 03, 2023 at 07:12 AM
another_mikey
Offline
• • •
Upload & Sell: On
p.1 #7 · p.1 #7 · Trifid Nebula (M20) in RGB with H-Alpha Added - A Close Up View


Thanks for the wonderful feedback everyone, I am very pleased with this result.

dClark - - I know what you mean, it is amazing what the brain can find in random shapes to make one see something significant.



Jul 07, 2023 at 12:56 AM
Fred Miranda
Offline
Admin
Upload & Sell: On
p.1 #8 · p.1 #8 · Trifid Nebula (M20) in RGB with H-Alpha Added - A Close Up View


One of the best I've seen. Congrats!


Jul 07, 2023 at 03:55 AM
 


Search in Used Dept. 

lighthound
Offline
• • • • • •
Upload & Sell: Off
p.1 #9 · p.1 #9 · Trifid Nebula (M20) in RGB with H-Alpha Added - A Close Up View


Outstanding work! It's amazing to me what civilians like you can achieve with commercially available tech now-a-days. Seems like just yesterday images such as this were only achievable from government tech such as the hubble and other large land based telescopes.

And yes, I see the eye/cheek and can't un-see it from the very first moment I viewed this image. Crazy how our brains constantly try to "see" something familiar such as faces no matter how complex something is.

Dave



Jul 07, 2023 at 08:13 AM
Bill Gass
Offline
• • • • •
Upload & Sell: On
p.1 #10 · p.1 #10 · Trifid Nebula (M20) in RGB with H-Alpha Added - A Close Up View


Incredible image and beautiful work, I'm sure you worked really hard on this and it shows...Outstanding.


Jul 15, 2023 at 01:32 AM
Mark Metternich
Offline
• • • • • •
Upload & Sell: On
p.1 #11 · p.1 #11 · Trifid Nebula (M20) in RGB with H-Alpha Added - A Close Up View


Fabulous work. Congratulations on winning thread of the week! Well deserved. 👏🏼


Jul 15, 2023 at 09:43 AM
Danpbphoto
Offline
• • • • • • •
Upload & Sell: On
p.1 #12 · p.1 #12 · Trifid Nebula (M20) in RGB with H-Alpha Added - A Close Up View


Agree with Mark! CONGRATS
Fantastic image!
Dan



Jul 15, 2023 at 09:48 AM
another_mikey
Offline
• • •
Upload & Sell: On
p.1 #13 · p.1 #13 · Trifid Nebula (M20) in RGB with H-Alpha Added - A Close Up View


Thanks everyone for the votes! Very much appreciated! Very exciting for me!

ML



Jul 19, 2023 at 05:27 PM
elrog
Offline

Upload & Sell: Off
p.1 #14 · p.1 #14 · Trifid Nebula (M20) in RGB with H-Alpha Added - A Close Up View


Wow. That pic is amazing. After you see the eye, you can't not see the eye. Creepy.


Jul 19, 2023 at 06:19 PM
another_mikey
Offline
• • •
Upload & Sell: On
p.1 #15 · p.1 #15 · Trifid Nebula (M20) in RGB with H-Alpha Added - A Close Up View


You are all too kind, thanks again. And yes, that eye is impossible to un-see, isn't it.

ML



Jul 21, 2023 at 12:53 AM







FM Forums | Landscape Photographer | Join Upload & Sell

    
 

You are not logged in. Login or Register

Username       Or Reset password



This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.