Celestial hemisphere:  Southern  ·  Constellation: Ophiuchus (Oph)  ·  Contains:  IC 4605  ·  The star 22Sco
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IC4605, B 44; Ophiuchus, Thomas V. Davis
IC4605, B 44; Ophiuchus
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IC4605, B 44; Ophiuchus

Getting plate-solving status, please wait...
IC4605, B 44; Ophiuchus, Thomas V. Davis
IC4605, B 44; Ophiuchus
Powered byPixInsight

IC4605, B 44; Ophiuchus

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IC 4605, B 44; Ophiuchus

Astro-Physics 155 EDF (155TCC) f/5.4 refractor

KAF-16803; FLI Proline

Total Exposure Time: 7 Hours; LRGB 210:80:50:80 minutes, unbinned

May 2009; RDO, Moorook, AU

Comments: This colorful region of the southern constellation Ophiucus has many beautiful emission, reflection and dark nebulae. In this image I show the blue reflection nebula IC 4605 adjacent to a small portion of the large yellow reflection nebula IC 4606. The small linear reflection nebula near TYC 6799-309-1 / V2394 Oph has been documented by the POSS2 blue plates, but I can't seem to find a catalog number in my references. Aladin however, shows a reflection nebula cataloged as DG (Dorschner+Gurtler) 143 next to this star . It is also cataloged as [SS62] (Struve-Straka, 63) 58. Maybe this is its catalog number. So much dust is in this region that getting a true black background is nearly impossible! My goal for this image was to show the detail of the dark nebulae and dusty regions.

This image was NASA APOD June 15, 2009.

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IC4605, B 44; Ophiuchus, Thomas V. Davis