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Contains:  Extremely wide field
Getting plate-solving status, please wait...
Rho Ophiuchi Complex and Blue Horsehead Nebula, 


            Rudy Pohl
Rho Ophiuchi Complex and Blue Horsehead Nebula

Rho Ophiuchi Complex and Blue Horsehead Nebula

Technical card

Resolution: 2048x1387

Dates:May 23, 2018

Frames: 243x120"

Integration: 8.1 hours

Avg. Moon age: 8.79 days

Avg. Moon phase: 64.78% job: 2071905

RA center: 244.407 degrees

DEC center: -22.956 degrees

Pixel scale: 24.495 arcsec/pixel

Orientation: 345.295 degrees

Field radius: 8.414 degrees

Data source: Traveller


Hi all,

I am new here at and just opened my account today although I've been a frequent visitor for a long time. I was just waiting until I had an image that I felt was good enough to post in this astro-forum before joining and now I'm finally I'm happy with one, so here it is.

The data for this image was acquired over 3 nights at our regular location 25 kilometers west of Ottawa, Ontario

Nikon D5500 (unmodified)
Nikon 85mm/f1.8 ... shot at 2.5, 3.2 and 3.5 over 3 nights
ISO 400 and 640
243 x 2-mins = 8.1 hours
Sky-Watcher Star Adventurer (unguided)
Pixininsight 1.8, Photoshop CS5



Rudy Pohl
License: None (All rights reserved)

Sky plot

Sky plot


Rho Ophiuchi Complex and Blue Horsehead Nebula, 


            Rudy Pohl