Celestial hemisphere:  Southern  ·  Constellation: Hydra (Hya)  ·  Contains:  M 68  ·  NGC 4590
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Dumpster diving into M 68 (NGC 4590) A Globular Cluster in Hydra, Ian Parr
Dumpster diving into M 68 (NGC 4590) A Globular Cluster in Hydra
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Dumpster diving into M 68 (NGC 4590) A Globular Cluster in Hydra

Getting plate-solving status, please wait...
Dumpster diving into M 68 (NGC 4590) A Globular Cluster in Hydra, Ian Parr
Dumpster diving into M 68 (NGC 4590) A Globular Cluster in Hydra
Powered byPixInsight

Dumpster diving into M 68 (NGC 4590) A Globular Cluster in Hydra

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Description

Messier 68 (also known as NGC 4590) is a globular cluster found in the east south-east of Hydra and is about 33,600 light-years away from Earth. It has a highly eccentric orbit that takes it up to 100,000 light years from the galactic center and is one of the most metal-poor globular clusters in our galaxy and may be undergoing core-collapse as it displays signs of being in rotation. The cluster may have been acquired by the Milky Way from a satellite galaxy. It has an apparant magnitude of 7.3 and is about 11 arminutes across.
PGC42334 sits to the left and there are 13 more PGC Galaxies and 36 Milliquas quasars, some over 22 R Magitude, in the background. I got a few more ok nights so I was able to really bump up the useable images (118 out of 136 for 5.8 hours) and use better image integration techniques.

The Annotations script in Pixinsight sure is powerful and a LOT of fun, if like me you love to go dumpster diving into the faint background stuff. There are a LOT of obvious background galaxies in this image NOT in the PGC catalog which is nice considering these are only 180 second exposures under Bortle 4 sky. Astobin won't solve for those so I will also post the annotations for the curious.
I find extra galactic quasars with verified proper motions truly fascinating as those motions are not in accordance with their red-shifts!

The bright  blue star chopped off on the left is SKF 1923, a magnitude 5.40 B-V 0.32 double star which lit up the opposite side of the image with lurid blue blotches that I had to tediously clone out and that is a feature of the 127is's out of date anti-reflection coatings on the extra Petzval objective and thankfully is not in any way apparant in my Red Cat 71 Petzval.

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Dumpster diving into M 68 (NGC 4590) A Globular Cluster in Hydra, Ian Parr

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