Description

Another well-known and well-photographed object. Another difficult object due to the very bright stars in the area of Orion. I photographed the luminance and the H-alpha band with zero gain in order to maximize the full well and the dynamic range of the camera so as to reduce the blown out effect of the stars. It’s a little better but still the microlensing artifact issue appears again in the star Alnitak.

Thanks for visiting

Equipment

Imaging Telescopes Or Lenses: Williams Optics ZenithStar 61 APO f/5.9
Imaging Cameras: ZWO ASI1600MM COOL
Mounts: Sky-Watcher EQ6-R Pro ×
Filters: ZWO L 36mm · ZWO G 36mm · ZWO R 36mm · ZWO B 36mm · ZWO H-Alpha
Accessories: ZWO ASIair Pro · ZWO OAG (Off-Axis Guider) · ZWO EFW 36mm 7 Positions · William Optics Adjustable Flattener Flat61
Software: Pleiades Astrophoto PixInsight · Topaz Labs DeNoise AI · Photoshop
Guiding Telescopes Or Lenses: Williams Optics ZenithStar 61 APO f/5.9
Guiding Cameras: ZWO ASI120MM Mini

Acquisition details

Dates: Nov. 26, 2020 · Jan. 18, 2021 · Jan. 19, 2021
Frames:
ZWO B 36mm: 15×300″(1h 15′) (gain: 101.00) -10°C bin 1×1
ZWO B 36mm: 15×120″(30′) (gain: 139.00) -15°C bin 1×1
ZWO G 36mm: 15×300″(1h 15′) (gain: 101.00) -10°C bin 1×1
ZWO G 36mm: 45×120″(1h 30′) (gain: 139.00) -15°C bin 1×1
ZWO H-Alpha: 28×300″(2h 20′) (gain: 0.00) -15°C bin 1×1
ZWO H-Alpha: 33×300″(2h 45′) (gain: 101.00) -10°C bin 1×1
ZWO L 36mm: 31×300″(2h 35′) (gain: 0.00) -15°C bin 1×1
ZWO R 36mm: 15×300″(1h 15′) (gain: 101.00) -10°C bin 1×1
ZWO R 36mm: 50×120″(1h 40′) (gain: 139.00) -15°C bin 1×1
Integration: 15h 5′
Darks: 30
Flats: 30
Flat darks: 30
Avg. Moon age: 7.55 days
Avg. Moon phase: 50.57%
Bortle Dark-Sky Scale: 8.00
RA center: 05h40m58s.53
DEC center: -02°20′26″.3
Pixel scale: 2.119 arcsec/pixel
Orientation: -90.571 degrees
Field radius: 1.283 degrees
Resolution: 3584×2488
File size: 8.0 MB
Locations: Home Roof, Ialysos, Rhodes, Greece
Data source: Backyard