The Horsehead and Flame Nebulae in Orion

            A hidden treasure in Orion's Belt. I was only able to get ~48 minutes of integration time. I hope the next time I can gather more data. This was my first time gathering data for these objects. This data was taken on 12.16.2020. When I first attempted to process it I became frustrated. I attempted again with PixInsight and it has made me want to shoot it again with more time.

Equipment:
Celestron CGEM Mount
Nikon 500mm f/4 P AI-s - shot at f/5.6
Sony a7RIII (unmodified)
Altair 60mm Guide scope
GPCAM2 Mono Camera

Acquisition:
Taos, NM: my backyard - Bortle 3
15 x 195" for 48 min and 45 sec of exposure time.
5 dark frames
15 flats frames
15 bias frames

Software:
SharpCap
PHD2
PixInsight
Lightroom
Photoshop


My mount was polar aligned with SharpCap I then mounted my a7rIII and adapted Nikon 500mm f/4 P AI-S lens to the top rail of my scope. I used SharpCap to achieve "excellent" polar alignment. I shot ISO 1600, f/5.6 and 195" exposures. I brought the lights/darks/flats/bias frames into PixInsight for stacking and aligning and then used: STF, Cropping, Dynamic Background Extraction, BlurXTerminator, plate solving, color correction, NoiseXTerminator and then the DSO was separated from the stars, and both files processed and stretched separately and then recombined using PixelMath. That file was brought into Lightroom for Metadata and EXIF tags, light post-processing, and cropping to the final  image..
   

Taken on: March 17, 2024

Tags:

500mm

500mm f/4 P AI-S

a7riii

astro

astrophotography

flame

horsehead

manual focus

nebula

nebulas

nikkor

nikon

orion

orion's belt

pixinsight

sony

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Sets appears in: • Astronomy and Astrophotography • Nikon 500mm f/4 P AI-S

Groups appears in: • Astrophotography - Astronomy - Astrophysics • Amateur Astronomy more » • Manual Focus Lenses • Nikon Prime AI-S • Sony Alpha cameras with manual lenses • Nikkor 500mm AI-P f/4 • Backyard Astrophotography • Vintage lenses on DSLR(including mirrorless cameras) • Old and Manual Focus Lenses • Camera Lens Astrophotography • Astrophotography - The Solar System and Beyond • Vintage Primes on Sony A7 • Astrophotography for beginners. • Sony A7 series with manual Nikkor lenses • Astro Imaging • The Sky Above (Astrophotography) « less

Camera: f/5.6, 2925 sec, 500mm (more info) (hide info)

Lens:	Nikon 500mm f/4 P AI-S
Aperture:	f/5.6
Exposure Time:	2925
Focal Length:	500mm
Color Space:	sRGB
Software:	Adobe Photoshop 25.1 (Macintosh)
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