Michael A. Stecker
mastecker@gmail.com



 

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IC 2118 "Witch Head Nebula"
Cropped image
from Sky-Watcher Quattro 250P Newtonian telescope
IC 2118 "Witch Head Nebula" is an extremely faint reflection nebula believed to be an ancient supernova remnant or gas cloud illuminated by nearby supergiant star Rigel in the constellation of Orion. This is a joint project of James Foster and me using a 10-inch f/4 Newtonian telescope at
Frazier Park California.
Click here for full resolution photo
file: WitchHead-JRF10NewtFB-1x1c-cr.jpg

Photographic Data
telescope:
Sky-Watcher Quattro 250P, 10-inch f/4 Newtonian telescope with coma corrector
 aperture: 10-inch
focal ratio: f/4 with 0.6X reducer/flattener
FL = 1,000 mm


mount and guiding:
Astro-Physics 1200 GTO, off-axis guiding

imaging camera:
ZWO ASI2600MC-Pro color astro-camera


filters:
red, green, blue


exposure:
red: 300 sec X 15, green: 300 sec X 15, blue: 300 sec X 16
total exposure time: 230 min (3.8 hours)


processing:
Aquired and stacked by James Foster with Maxim DL.  Post-processed in Adobe Photoshop Elements by Michael Stecker


photographic site:
James Foster's observatory at Frazier Park California
https://en.wikipedia.org/wiki/Frazier_Park,_California
(Bortle 4 at 5,500 feet elevation)
 
 
 

IC 2118 "Witch Head Nebula"
from Sky-Watcher Quattro 250P Newtonian telescope
file: WitchHead-JRF10NewtFB-1x1c.jpg
 
 
 
 

IC 2118 "Witch Head Nebula"
with William Optics ZenithStar 73 refractor
(cropped)


Photographic Data
telescope:
William Optics ZrnithStar 73 doublet refractor with field flattener
(aperture 73 mm, f/5.9, FL= 430 mm)

 
mount and guiding
Astro-Physics 1200 GTO

imaging camera:
ZWO ASI2600MC-Pro color astro-camera.  Imaged on September 17, 2023.

exposure:
195 minutes -- HaRGB

guiding:
SVBony 60 mm f/4 guide scopr (FL= 240 mm) with ZWO ASI1200Mini guide camera
 
processing
Aquired and stacked by James Foster with Maxim DL.  Post-processed in Adobe Photoshop Elements by Michael Stecker.
.
photographic site:
James Foster's observatory at Frazier Park California
https://en.wikipedia.org/wiki/Frazier_Park,_California
(Bortle 4 at 5,500 feet elevation)