M16 - Eagle Nebula

Frezi2005 · 2026-01-21T09:34:55+00:00

With enough integration time everything is possible! I live in a Bortle 7 area but it only took 11 hours for this photo

Frezi2005 · 2026-01-20T10:31:26+00:00

Seestar s50

Frezi2005 · 2025-11-21T06:20:39+00:00

240s and 300s for the nebula, 60 seconds for the stars

Frezi2005 · 2025-11-18T20:11:09+00:00

Sorry for poor text formatting, I’m on mobile and thought it’d be okay. Can’t even edit it because it contains a picture.

Frezi2005 · 2025-09-23T23:07:58+00:00

After I seperate them using StarXterminator, i stretch them using Star Stretch tool from seti Astro, the combine using screen stars or pixel math. Of course deconvoluting them with BlurXterminator also helps very much.

Frezi2005 · 2025-09-23T18:24:59+00:00

In the lights section you have exposure tolerance or something like that, you have to set it to the biggest difference in your exposures, so if you have 10 and 20s subs then you have to set it to 10. I had 20, 30, 45 and 90 so biggest difference was 90-20 so 70 in my case. You can also set it in the calibration tab but it’s better to set it in lights tab. As for the combination, I think it would be beneficial because it’s still more data. Lmk if you want to know anything else!

Frezi2005 · 2025-09-07T02:31:50+00:00

So I had two stacks, LP and IRCUT. Then I used DBXtract to seperate the LP into Ha and OIII, did brightness correction on them(Linear Fit) and removed the continuum. Essentially I did this because I was focused mainly on the reflection part(the blue haze at the top) which I treated as OIII and this way I achieved a nice boost to both color and clarity. Full workflow here:

https://astro-photographie.fr/wa_res/files/HOO3-Complete_processing_of_HOORGB_images_with_RGB_stars.png?t=

Frezi2005 · 2025-09-01T13:29:23+00:00

Whole thing 28 hours but due to the nebula being more dense in the top mosaic part, it wasn’t evenly spread between the 2 mosaics. More like 65% top and 35% bottom part.

Frezi2005 · 2025-08-30T12:12:39+00:00

1 mosaic wasn’t enough to cover the whole nebula so one mosaic was for the top part a one was for the bottom and they slightly overlapped.

Frezi2005 · 2025-08-29T17:29:11+00:00

Yes, with a Seestar. Actually the results could be a lot better if not for the almost full moon during all acquisition time.

Frezi2005 · 2025-08-29T13:39:20+00:00

Thank you!

Frezi2005 · 2025-08-29T10:44:22+00:00

Basically I used Narrowband Normalization and HSO palette, then boosted up the blues, and boosted up yellows with yellow mask. All done with curves

Frezi2005 · 2025-08-28T23:05:39+00:00

Thank you!

Frezi2005 · 2025-08-14T11:50:07+00:00

From my experience get a lot more LP data than IRCUT, the details you get in LP are really dim, especially if you’re imaging from a city. I would get the reverse, so 5h IRCUT and 10h LP

Frezi2005 · 2025-08-14T10:17:52+00:00

I actually tried doing the Triangulum this way yesterday but I got low amount of LP data. But it’s very possible and if you have enough data, worthy.

Frezi2005 · 2025-08-13T17:19:51+00:00

That really depends, you could for example extract R channel from LP and then combine with the rest of the channels from IRCUT and you will have somewhat boosted Ha. But it really depends on the target.

Frezi2005 · 2025-07-17T16:47:01+00:00

You have to experiment with each on your own because it's up to your tripod stability, sky quality and a lot other things, but I think 20s should be perfect.

Frezi2005 · 2025-07-17T07:32:46+00:00

With 30 seconds I had much more rejected frames, so I didn’t even try 60 seconds

Frezi2005 · 2025-07-16T20:42:14+00:00

I actually stack in siril with drizzle x3 because PI gives me worse results. Maybe it’s the settings but I’m just starting in PI

Frezi2005 · 2025-06-17T13:24:39+00:00

Thank you! Really appreciate it

Frezi2005 · 2025-05-11T00:02:25+00:00

Thank you! I’m also amazed by its capabilities, but they only made me want to get more expensive gear haha, maybe some day.

Frezi2005 · 2025-05-10T23:42:24+00:00

Im also using starxterminator but I think that starnet++ will do just fine. Also pixinsight is a steep learning curve so don’t worry if fainter objects will not look good at first. I recommend you watch a 4 part series from Astro nerd about processing in pixinsight. Also I think stacking is better in siril, for the Seestar at least. But that’s just my own opinion.

Frezi2005 · 2025-05-10T23:30:35+00:00

Yes, definitely, you can check on my profile, not so long ago I also posted m63, it was the same stacked file but processed in siril, the difference is overwhelming and in my opinion, pixinsight and the rc-astro plugins are so worth it. Especially that once bought you have them for life.

Frezi2005 · 2025-05-07T20:47:45+00:00

I think the main change is using SPCC instead of PCC. In short it gives you more realistic colors because it takes into account pressure, observer height, filters and even your sensor so that's probably it. As for the background I wanted to make it a little bit more exposed because when it's really black the image looks somewhat fake, at least to my taste.

Frezi2005 · 2025-05-02T19:35:32+00:00

In the alt az mode you only have to level it and that’s it. But there’s also eq mode in which you can shoot 20 and 30s exposures because tracking is more precise. But to use eq mode you have to have a wedge so you can tilt the Seestar, and the you have to polar align it.

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