"THE SOUTHERN PINWHEEL GALAXY"
- Deepsky 2885mm LRGB
- Area Constellation Hydra
Messier 83, sometimes also called the southern pinwheel galaxy, is a spiral galaxy in the constellation of the Water Snake on the border of Virgo. It can only be observed in the northern hemisphere in the evening in spring. Although M83 is a fairly bright galaxy with an apparent magnitude of 7.5 mag, it is difficult to observe from Central Europe as it is only 10-15° above the horizon. Observed from southern latitudes, it is one of the brightest spiral galaxies in the night sky.
The galaxy is about 17 million light years away and gives its name to the M83 group, a group of galaxies neighboring the Local Group, which also contains the bright galaxy Centaurus A.
The galaxy was discovered by Nicolas Louis de Lacaille in 1751. Due to the high rate of star formation and supernovae (six since 1923), M83 is considered a starburst galaxy.
Starless Version:
For me personally, the image is still crying out for hAlpha data, which I will certainly take in the foreseeable future :-)
| Object : LMessier 83 - Galaxy
| Stack LUM : 61 Lights a 600s Bin1x1
| Stack RGB : 18 lights each a 600s Bin1x1
| EBV Tools : Pixinsight / Photoshop / Lightroom / AstraImage
| Mount : Losmandy Titan
| Telescope : ATEO-3 - Quasar 12.5" f/9 Ritchey-Chretien 2885mm
| Filter : Astrodon E-Series
| Camera : SBIG STL11000
| Observer : Franck Jobard
| Location : Rio Hurtado Valley, Chile (DeepSkyChile)
Image processing:
mainly Pixinsight, additionally Photoshop, Lightroom, GraXpertAI, BTX Blur Terminator, Noise Terminator, Star X Terminator
Acquired data imageset from Insight Observatory, elaboration and development by me, in LRGB.
#hydra #messier83 #southernpinwheelgalaxy #southernfirewheelgalaxy #universe #artofpixastro #astrophotography #insightobservatory
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