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Contains:  IC 4605, NGC 6144, rho Oph nebula, IC 4604, IC 4603, M 4, NGC 6121, M 80, NGC 6093, The star 22Sco, The star Antares (αSco), The star ρOph, The star Al Niyat (σSco), The star οSco
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The Great Rho Ophiuchus Antaries Nebula Complex, 


The Great Rho Ophiuchus Antaries Nebula Complex

The Great Rho Ophiuchus Antaries Nebula Complex

Technical card

Imaging telescope or lens:Home made OC2226

Imaging camera:SBIG STL-11000M

Mount:GT11000 Paramount

Guiding telescope or lens:Home made OC2226

Guiding camera:SBIG STL-11000M

Software:PixInsight PinInsight 1.8

Accessories:RobofocusTechnical Innovations Dome 6'

Resolution: 5127x5926

Dates:June 10, 2018

Frames: 300x180"

Integration: 15.0 hours

Avg. Moon age: 25.83 days

Avg. Moon phase: 14.74% job: 2098709

RA center: 246.743 degrees

DEC center: -24.468 degrees

Pixel scale: 3.374 arcsec/pixel

Orientation: 359.892 degrees

Field radius: 3.672 degrees

Locations: Sierra Chaparral Observatory, Solar Powered, Off The Grid, Single Owner, Home Made, Tulare County, CA, United States

Data source: Own remote observatory


At aout 500 light-years away the Rho Ophiuchi star clouds are well in front of the nearby globular star cluster M4. M4 is to the right of Antaries.

It is interesting the number of different nebula and object types concentrated in this patch of sky. The bluish colors are reflection nebula, the redish are emission nebula the darker are obscuring dust clouds, there are bright stars, VdB objects, a handfull of globular clusters, and dust permitting a couple of galaxies. Turely a spictacular patch of night sky. There is EM-radiation and light emitted at every wavelength from radio waves to gamma-rays...

This is a 6-panel mosaic that was integrated most clear moonless nights over the past several months. A project I have started several times over the years with varous instruments and will continue to work with this one.

The astrograph is a home made catadioptric 8" F/2.6.

North is up



License: None (All rights reserved)

Sky plot

Sky plot


The Great Rho Ophiuchus Antaries Nebula Complex,