THE CORONA AUSTRALIS COMPLEX
- NGC6726, NGC3727
- Deepsky 500mm LRGB 9 Panel Mosaic
- Constellation Corona Australis
The Southern Crown (Latin: Corona Australis, historically also Corona Meridionalis) is a constellation of the southern sky. It consists of an arc of stars, the brightest of which only reach 4th magnitude. From Austria/Germany, only its northernmost stars can be seen low in the summer sky. The Southern Crown is one of the 48 constellations of ancient astronomy, which were already mentioned by Ptolemy. It forms the celestial counterpart to the Northern Crown (Corona Borealis). The brightest star is β Coronae Australis, a yellowish star of spectral class G7 about 400 light years away. α Coronae Australis is 100 light years away. γ Coronae Australis is a binary star system 120 light-years away, consisting of two whitish-yellow stars of spectral class F8. ε Coronae Australis is a variable star of the Beta Lyrae type. With a regular period of 1.4403 days, its brightness changes from 4.7 to 5.0m. It is 90 light years away and belongs to spectral class F1. The globular cluster NGC 6541 in the upper left is about 22,000 light years away.
9 panels with 4 lights of 300s each for luminance, red, green and blue filters per panel. This is a premium image stack for members of iTelescope, remote telescope provider, taken in Deep Sky Observatory Chile at Rio Hurtado Valley, Chile.
Imaging conditions:
Clear nights, Bortle 1 sky
| Object: Corona Australis NGC 6727
| Telescope: T71 Takahashi 180ED f/2.8 500mm
| Camera: ZWO-ASI2600MM Pro Astrodon Gen2 I Series Filter
| Lights: 9 panels of 4 lights a 300s each for LRGB Bin2
| Location: iTelescope.Net at Rio Hurtado Valley, Chile
Image processing:
Mainly Pixinsight, Astro Pixel Processor, Photoshop, Lightroom, GraXpert, BTX Blur Terminator, Noise Terminator, Star X Terminator
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