[RCC] My very first IOTD

2 replies•41 views
Leonardo Landi avatar

I would appreciate a critique of my M33 image, which was awarded as IOTD a few days ago. To my eyes, the image is far from excellent, and yet it was my first IOTD. In particular, I noticed several artifacts caused by BlurXT + NoiseXT ("mottling" as Adam Block calls them in his video on the subject), especially in the periphery of the galactic disk. So much so that to get a decent result I had to lower the BXT sharpening to 0.25. Subsequently, I had some difficulty blending L with RGB, in fact I even considered not using luminance at all. In the end, I produced the LRGB with ImageBlend and a blending percentage of 0.6. I treated the HA similarly, blending only a minimal percentage. All this, with an additional difficulty: it was impossible to work on a starless image, since SXT extracted large portions of the galaxy. Therefore, the entire workflow took place with the stars present (and in fact many are bloated). Ultimately, I don't think this is my best image at all, but I'd appreciate your opinion on it.📷 M33M33

https://app.astrobin.com/i/pq8xd0/

Tony Gondola avatar

I don’t mind your stars at all. I often will not remove them from Galaxy images just because removing them tends to be destructive. On an object like M33 that has so many resolved stars, the last thing I want to do is minimize them.

On the rest, all I can say is Shhhhhh!

Well Written Respectful Engaging Supportive
Rick Krejci avatar

I don’t tend to do star removal for galaxies either. It tends to remove the knots and other features. Also, I don’t mind doing a greater stretch on the stars than usual since you can really bring out the super faint fuzzies in the background.

You image had a great composition rather than the normal diagonal M33, and nice framing as well. I think that was what they were looking at rather than jumping to a 100% view right away.

Helpful Concise Engaging Supportive
Related discussions
RCC - Progress trajectory and everything else
Hello everyone, My name is Rajat, and I’m from New Delhi, India. Like many others, I discovered my love for astronomy during the COVID pandemic when I bought my first telescope—a 90mm f/5 achromatic alt-az refractor (Bresser). Not long after, an 8-in...
Feb 1, 2025
Both posts are personal introductions from amateur astronomers sharing their experiences with astrophotography and equipment.
[RCC] Help me improve my landscape astrophotography processing
Hi, since last summer, I have started doing landscape astrophotography more seriously and bought a new setup for this discipline. It consists of: Camera: Canon EOS 200da Lens: Samyang 12mm F/2.8 A stable tripod from SmallRig and a solid powerbank I a...
Mar 13, 2025
Both posts describe personal astrophotography projects and the equipment or techniques used to capture them.
[RCC] - Veil Nebula region in SHO
I struggled processing this one a bit. Early versions had too much green (Ha). Too saturated. Should I just do HOO? I came across this tutorial, which is more Photoshop oriented with extensive use of layering and really found it enlightening and much...
Jun 24, 2024
Both posts discuss challenges encountered while processing astronomical images and the techniques or adjustments needed to achieve satisfactory results.
Seeking advice on next steps in my astrophotography journey
I’d really appreciate your views on the next steps on my Astrophotography journey. Having been doing this amazing and absorbing hobby now for just under two years, I know that my journey has progressed from bafflement with how to use the equipment an...
26 days ago
Both posts seek feedback and guidance from the astronomy community on their astrophotography work and techniques.
Review of my past work and the future upgrade path
Hello AB friends/ colleagues here, Let me start with a disclaimer: This is my first post in a forum. I have been little too hesitant to post this here because already too many questions on the same topic have been asked and answered. I have gone thro...
Mar 5, 2023
Both posts express uncertainty or self-doubt about their work or decisions despite having some level of accomplishment or experience.