Celestial hemisphere:  Southern  ·  Constellation: Scorpius (Sco)  ·  Contains:  IC 4603  ·  IC 4604  ·  IC 4605  ·  M 4  ·  NGC 6121  ·  Part of the constellation Scorpius (Sco)  ·  The star 22Sco  ·  The star Al Niyat (σSco)  ·  The star Antares (αSco)  ·  The star οSco  ·  The star ρOph  ·  The star τSco  ·  The star ωOph  ·  rho Oph Nebula
Rho Ophiuchi Cloud Complex, Widefield (LRGB, 2021), Jesse Priolo
Rho Ophiuchi Cloud Complex, Widefield (LRGB, 2021)
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Rho Ophiuchi Cloud Complex, Widefield (LRGB, 2021)

Rho Ophiuchi Cloud Complex, Widefield (LRGB, 2021), Jesse Priolo
Rho Ophiuchi Cloud Complex, Widefield (LRGB, 2021)
Powered byPixInsight

Rho Ophiuchi Cloud Complex, Widefield (LRGB, 2021)

Equipment

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Acquisition details

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Description

Shot this target last year with a different setup (Zenithstar 81; Canon 450d)

Came back to it this year with my current gear, hoping to get cleaner data. Succeeded for the most part, though my blue subs had a fair bit of eccentricity (growing pains with my new HEQ5, which I'm hoping to use as a widefield mount while my EQ6-R does heavier lifting). Image is definitely cleaner compared to last year's, though the difference isn't staggering.

Above image is downscaled from 47MP to fit upload requirement.

L: 87 x 90s

R: 28 x 120s

G: 29 x 120s

B: 28 x 120s

135mm f/2 lens used at f/4. Tried stopping down with front aperture mask to avoid diffraction spikes, but corner stars and vignetting looked appreciably better when internally stopped down.

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Rho Ophiuchi Cloud Complex, Widefield (LRGB, 2021), Jesse Priolo