Rho Ophiuchi Stellar System by André Cajolais

Photo of the Week for November 15, 2019

It’s the first time that’s the charm this week, as André Cajolais’ first shot of the Rho Ophiuchi Stellar System wins the award for Photo of the Week.

Taking the first-time shot from Rodeo, New Mexico on April 28, Cajolais said he used a ZWO ASI 294 Pro, taking 30 exposures and 300 seconds each.

He used a Celestron Edge 11 at f/2 (Hyperstar) with the CGEM DX mount.

Cajolais said he had seen an image on the web of IC 4603, 4604, 4605 and 4606, the Rho Ophiuchi Cloud Complex, adding he found that region really beautiful.

“However, I was technically limited,” he added. “I could not capture the whole region — the field is way too large for my capabilities.”

Cajolais said he has been observing the sky for a little over 30 years, but he said he is quite new in the field of astrophotography, only starting seriously in 2017. He added he hasn’t mastered the mosaic technique, and for the time being he is only photographing in colour.

“But I knew that the region of Triple Star Rho was within my reach,” he said. “I had the opportunity to take the photo in New Mexico, last spring, with a C11 Edge equiped with Hyperstar a fantastic duo… and my then new ZWO ASI 294 Pro colour camera.”

He said that once he masters more techniques he hopes to capture the region in its entirety.

“I really like the result of my capture of Rho, the triple star of course, but mainly the delicate movements of gases and dust from this star nursery … one of the closest to our solar system, moreover!”

Editor’s note: After a brief hiatus, the Photos of the Week are back on schedule. Over the next few weeks, we will be publishing all the winners of the past few months along with the regularly-scheduled winners.

Enter the Photo of the Week Contest

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You could win one of five great prizes from Celestron, iOptron, Sky-Watcher, Mallincam or Meade.

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