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Antares/Rho Ophiuchi Region
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Details
Date Taken: 06/12/2015
Photographer: Steve Peters
Location: Fremont Peak, CA
Other Telescope: EF 24-105mm f/4L lens @ 73mm, f/4
Mount: Orion Paragon-Plus XHD Extra Heavy-Duty Tripod
Other Camera: Canon EOS 500D modified
Processing: DeepSkyStacker and Photoshop CC
Exposure: 20 x 180s, ISO 1600
Other Equipment Used: iOptron SkyTracker, Orion 12V DC Power Adapter for DSLRs
Notes: I love this region of the sky in Scorpius and Ophiuchus. The colorful red, yellow, and blue nebulas and black streamers of dark nebulosity remind me of a burst of fireworks. I've been wanting to capture the "Blue Horsehead" nebula, IC 4592, which lies right next to the fireworks display, for some time, and managed to do so in this stack of just 20 3-minute exposures 1 hour total exposure. You can barely make out its faint blue and dusty glow to the upper right of center the horse's head is upside down, nose pointed to the right. This reflection nebula is illuminated by the horse's "eye", the star Nu Scorpii.

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