Michael A. Stecker
mastecker@gmail.com

 


 
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Rho Ophiuchus Cloud Complex
 Rho Ophiuchus ("Mickey Mouse" shaped stars at the upper right) is engulfed by a blue reflection nebula. Directly below it is lighter colored IC 4603 with dark interstellar dust lanes Barnard 44 & 45 extending to the left. The whole complex is northeast of Antares, the brightest star in the constellation Scorpius. This was a joint project of James
Foster and me using my Askar 103 APO 4-inch triplet refractor
file: RhoOphCen84min2JRF572024cr1sm.jpg

Photographic Data
 Date:
May 7, 2024

 telescope:
Askar 103 APO
4-inch triplet refractor with 0.8X focal reducer
Aperture: 103 mm
Focal length (reduced): 560 mm
Focal ratio with 0.8X reducer: f/5.5

mount:
iOptron CEM60

 imaging camera:
ZWO ASI6200MC-Pro color astro-camera

exposure:
200 seconds X 25 (84- minutes stacked)
guiding:
SVBony 60 mm f/4 (FL= 240 mm) guide scope with ZWO ASI120MM-mini guide camera
 
processing
Aquired by James Foster with Maxim DL.  Stacked in ASI Studio.
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)