NGC 6726

NGC 6726

Star-Forming Region in Corona Australis

Constellation: Corona Australis
Ra: 19h 01m 39s
Dec: -36d 53m 29s
Distance: 400-500 ly
Image Size: 34' x 34'
North: Up

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Description

The star-forming region around NGC 6726 in the southern constellation of Corona Australis (Southern Crown) about 400 - 500 light years distant is a complex association of dust, beautiful blue reflection nebula and unusual objects referred to as Herbig-Haro (HH) objects. The image above is 34 arcminutes square and north us up. Since there are so many different objects present, an annotated image is presented below for reference. NGC 6726/6727 and IC 4812 are blue reflection nebulae, where bright stars are embedded in a large cloud of dust which reflects the blue light of the stars. NGC 6729 is a butterfly-shaped emission/reflection object that is a variable nebula, powered by the irregular variable star, R Coronae Australis (R CrA). R CrA was discovered about 100 years ago. HH objects are shown as delicate, small arcs of glowing gas. They originate as energetic outflows from embryonic stars that are still forming and cloaked inside gas and dust. Bernes 157 is dark nebula that is so dense that stars inside the nebula and behind it cannot shine through. The Corona Australis star forming region has incredible diversity and is a wonderful imaging target .
Exposure: Total 12 hrs; Lum 4 hrs, 8 hrs RGB
Telescope: PlaneWave CDK20 20
Mount: PlaneWave Ascension A200h
Oag: Astrodon MonsterMOAG
Acquisition: CCDAutoPilot5
Calibration: CCDStack2
Observatory Site: Siding Spring, iTelescope.net, NSW, Australia
Camera: SBIG STX16803
Filters: Astrodon Gen2 LRGB
Guider: SX Lodestar
Camera Operation: MaximDL5.24
Processing: Photoshop CC 2014, PixInsight1.8
Image Date: 08/02/2014 - 08/03/2014

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