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The North America Nebula has been on my list for a while. It’s one of those targets I suspected would be a genuinely good fit for the S30 Pro, and after this session I can say that hunch was right. This one also ended up being a milestone for me in a few ways — more on that below.
Photo Details
- Conditions: Good transparency
- Object: NGC 7000 (The North America Nebula)
- Telescope: SeeStar S30 Pro
- Constellation: Cygnus
- Exposure time: 10 seconds
- Subs: 866
- Duration: ~2 hours 24 minutes
- Bortle Zone: 7
About the Target
NGC 7000 sits in Cygnus, roughly 2,200 light years from Earth, and it earns its name — the shape of the nebula’s bright emission region maps closely to the outline of North America, complete with a recognizable Gulf of Mexico.
It’s a large HII region powered by ionized hydrogen gas, and at nearly 3 degrees across, it’s one of the biggest objects in the summer sky by angular size.
That scale is exactly why it seemed promising for the S30 Pro. This scope tends to do its best work on large targets, and a nebula this expansive felt like it could finally be the kind of image that would show what the telescope is really capable of.
Field Notes
I set an alarm and woke up in the middle of the night to get outside and start targeting this one.
I knew Cygnus would be well-positioned, and I’d been anticipating this session. The North America Nebula is the kind of large emission target I suspected the S30 Pro would handle better than almost anything else I’d pointed it at.
Setup went smoothly and I let it do its thing.
The main lesson from this session was about framing. Looking back, I wasn’t fully happy with the initial composition, and while I was able to crop into something workable, I think there was a better frame available if I’d taken a few minutes to dial it in first.
For a target this large, it’s worth running a few subs, squinting at what’s coming in, and making small adjustments with the joystick before you commit to a long run. A little patience up front could get you to the optimal framing — and with a nebula this big, the composition really does matter.
That said, when I finally saw what had come in after nearly two and a half hours of data, I was genuinely floored. This was the first image I’ve gotten with this telescope that — to me — looks like real astrophotography. Not “pretty good for a smart telescope.” Actually good. That feeling is hard to overstate, especially when I was feeling a little buyer’s remorse.
Processing
This was also the first session where I had a genuine success stacking in Siril. Everything I’d tried in that software up to this point had gone sideways. Usually the image looked much worse after I was done messing with it.
Part of the problem turned out to be that I was running an outdated version of Siril without the SeeStar-specific script — two issues I didn’t know I had until I started digging.
Once those were sorted, I was largely able to work through the major steps, though there were still a couple of hiccups along the way. It’s still a trial-and-error process just getting through the steps. But getting a clean stack out the other side felt like a real milestone.
I just need to get more familiar with background extraction and also all of the histogram settings.
After exporting from Siril, I ran the image through GraXpert for gradient correction and some final adjustments. I reddened the background a little too much but otherwise it did a good job handling the noise.
Anyway, here’s what the image looked like stacked natively in SeeStar.
And here is after Siril + GraXpert.
For diffraction spikes, I went down a few different roads and none of them worked out the way I hoped. Eventually, I put the image into ChatGPT and asked it to add realistic spikes to the brightest stars — same approach I used on the Beehive.
I was actually pleased with the result this time. I’m still not treating this as a permanent solution, and I’m increasingly interested in getting a physical diffraction spike mask for the telescope to see how that changes things. But for now, it gets the job done.
Final Word
The North America Nebula did exactly what I hoped it would. The S30 Pro is built for targets like this — large, bright emission nebulae where that wide field of view is an asset rather than a limitation.
Getting Siril working properly made a real difference in the quality of the final stack, and I think there’s still more to pull out of this target once my processing workflow tightens up further.
More than anything, this session has me hooked. I’ve been patient with this telescope through a lot of so-so results, and getting an image that genuinely looks like what I set out to capture makes the early struggles feel worth it. Now I’m just watching the weather and waiting for the next clear night.
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