m45
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Orion nebula (You are seeing the year 680, because orion nebula is 1344 light years away from Earth)
Gear details & location
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Camera: Nikon D7500
Lens : Nikon 70-300mm kit lens 300mm @f6.3
Equatorial Mount: iOptron Skyguider Pro
Tripod : Manfrotto MT190
Bortle class: 4
Location: Kerala,India
Image acquisition details
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Total exposure: 1 Hour
Light frames : 100 x 30" ISO 1600
Light frames : 10 x 30" ISO 800
Light frames : 10 x 30" ISO 3200
Dark frames: 15 x 30"
Stacked using DeepSkyStacker,image processing using Siril, ImagesPlus
This past weekend my family and I camped in Wyalusing State Park, a place known for its valley views and numerous hiking trails. It is also one of the better spots in southern Wisconsin for stargazing, due to it being very rural. They even have a permanent observatory set up that gets year-round use. That's where I took this shot, a 2 panel panorama of the Milky Way, Rho Ophiuchi cloud complex, and some very intense green airglow.
This past Sunday North America got to experience a lunar eclipse and for once it was at a reasonable time (11:00 PM). This time around I got to try a new technique of combining a polar-aligned star tracker and long exposures to bring out more detail. This is a single 10 sec exposure, not a composite.
M31 as seen from the beach at Camp Cachalot in Plymouth, MA last Friday night, with the smaller M32 and M110 satellite galaxies also visible, if not particularly well-defined. The camp is fairly dark (well, for the northeastern US, anyway) with Bortle Class 4 skies. Considering this is only my second attempt at deep-sky astrophotography, I'll take it, but I'm pretty sure I can do better. Looking at the source frames that went into this, I think I nudged the equatorial tracker out of alignment unintentionally, since I got a little bit of trailing on the stars.
No telescope involved. This was one of my Nikon D750s, with my Nikkor 28-300mm at 300mm (with a bit of gaffer tape to ensure it didn't shift while shooting), mounted on an iOptron SkyGuider Pro equatorial tracker. I took 30 light frames at ƒ/8, 2 minutes each using a ShutterBoss Pro II intervalometer, but had to toss about 8 of those, one from what looked like some wind shake and the rest because of other light sources crossing the frame (mostly planes; at least, they didn't look like the photos I've seen of the StarLink constellation that other astrophotographers have complained about.) Shot 30 darks, and 20 each of bias and flat frames. Everything was processed in SIRIL using the provided scripts, and I attempted a bit more minor cleanup using a mixture of Topaz DeNoise and Adobe Photoshop CS.
I'm going to have to try this one again the next time conditions are decent, maybe from a darker spot (best I can do without overnight travel are Bortle Class 3 skies), and do better at keeping the tracker in alignment.
Orion's belt,flame nebula,horsehead nebula
Total exposure: 13 min 30 sec
Light frames : 27 x 30",No Dark,flat frames
ISO: 800
Camera: Nikon D7500
Lens: Samyang 135mm @f2.8
Equatorial Mount: Ioptron Skyguider pro
Bortle class: 4
Stacked and processed using Deepsky stacker, Siril,Images Plus and PS
Image processing : Background extraction,Arcsinh/hyperbolic sine stretch,
and Green noise removal,low pass filtering