The Dolphin Head Nebula

Lucky Imaging; No The Other Kind

Mark Watson

Astrophotography, as we all know, is an endeavor where patience meets precision, where planning clashes with the unpredictable whims of nature, and where luck, though rarely admitted, plays a defining role.

It started with inspiration. A friend from our local astronomy club had shared a stunning image of the Dolphin Head Nebula he had captured the week before. "Give it a shot! You'll be glad you tried." he encouraged. Of course, this nebula had been on my bucket list for some time, but I had never even considered trying it yet; doubting whether my level of expertise was up to the task, let alone my equipment. However, seeing the forecast suddenly shift to clear skies, I decided to take a shot!

That was where my luck seemed to run out.

First, the target itself is a challenge; the Dolphin Head Nebula never climbs higher than 25 degrees above my southern horizon, which means more than double the amount of atmosphere to shoot through. And my location is on the north side of town, this meant shooting over the worst of the city's light dome. And, as fate would have it, it was a rare, warm-weathered Saturday night; meaning the skyglow from downtown was even more intense than usual.

Then, the wind. Though fair at best, sudden gusts of 25mph threatened to turn my telescope into a wacky waving inflatable arm flailing tube man! Still, I pressed on, aligning and powering up my gear only to be met with a cascade of technical malfunctions.

Although NINA recognized all my equipment, the mount and filter wheel refused to communicate. Then, the focuser slipped. When I finally enabled guiding, I noticed a significant tilt in the guide image, which probably helped degrade guiding precision to "horrible" (about 2.5" RMS). As if that weren’t enough, my remote connection lagged by several seconds the entire time!

I couldn’t help but think I had only myself to blame. After all, this entire rig was a budget-conscious trial, pieced together with some of the cheapest, mostly generic equipment available. At its core was the curious Juwei 17 mount, paired with a repurposed guide scope, the Orion ShortTube 80, as the main scope, and topped off with the newly developed QHY miniCAM8, a first-run unit that had barely hit the shelves (All jokes aside, I absolutely recommend both the Juwei 17 and miniCAM8!). It was like trying to paint a house with a toothbrush; outmatched, awkward, and seemingly destined for failure.

And yet... despite all of this, despite the odds stacked against me, I somehow walked away with an image. Not just an image, but one that exceeded all expectations given the chaos of the night! Perhaps this is the truest form of lucky imaging; not the technique of stacking fleeting moments of perfect seeing, but the rare, almost magical convergence of chance and perseverance that turns an otherwise doomed session into an unexpected success. It wasn’t the smoothest night, nor the most refined capture, but in the end, I had something tangible; a detailed portrait of the Dolphin Head Nebula, shimmering in the depths of space. A trophy earned not through meticulous planning or high-end equipment, but through sheer, improbable luck.

And maybe, just maybe, that makes it all the more satisfying.

Dolphin Head Nebula - 2025 Dolphin Head Nebula, Mark Watson 2025