As every astrophotographer knows, the crystal clear nights you’ve been patiently waiting months for will always coincide with a big, bright full moon. Thankfully, this is one of the major bonuses of using a narrowband filter like the Optolong L-eNhance
. It allows you to image anyway. What would have been a night to stay indoors becomes an opportunity to image an emission nebulae.
With a near full moon glaring throughout the entire night, I took a sequence of 2 minute exposures of the Rosette Nebula in Monoceros. I collected a total of 50 shots, with a 1 hour break while the target moved passed a local tree. The image needed some gradient removal due to the moon, but overall I think it’s a pretty remarkable result!
Image details: Modified Nikon D5500 and William Optics ZenithStar 73 II APO with 73a field flattener at 430mm / f5.9. 100 minute exposure time (50 x 120 seconds) at iso 800. Using Optolong L-eNhance filter. Tracked with unguided AstroTrac TT320X-AG. Stacked in Deep Sky Stacker with 20 dark / 30 flat / 30 bias frames. Sequenced with N.I.N.A.. Edited with Photoshop and Starnet++