NGC 6752 The Starfish Globular Cluster in Pavo with BlurXTerminator (Ian Parr)

Celestial hemisphere: Southern · Constellation: Pavo (Pav) · Contains: NGC 6752

NGC 6752 The Starfish Globular Cluster in Pavo with BlurXTerminator, Ian Parr

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NGC 6752 The Starfish Globular Cluster in Pavo with BlurXTerminator

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NGC 6752 The Starfish Globular Cluster in Pavo with BlurXTerminator

NGC 6752, nicknamed the Great Peacock Globular is a globular cluster in the constellation Pavo. Also known as the Starfish or the Windmill Cluster. It is the fourth-brightest globular cluster in the sky, after Omega Centauri, 47 Tucanae and Messier 22, respectively. With an apparent magnitude of 5.4, it can be seen with the unaided eye and with binoculars it can be seen to cover an area three quarters the size of the full moon. It has a core region densely populated with stars around 1.3 light-years in diameter and lies around 13,000 light-years away and is one of the closer globular clusters to Earth and lies 17,000 light-years away from the galactic centre. It has a calculated age of 11.78 billion years. There are many binary stars in the system, as well as blue stragglers, which are likely to have been formed by collisions and mergers of smaller stars.

This is I think my favourite globular with the bright blue star near to core setting it off nicely.

An extraordinary night that started with cloud and scud and ended clear with very, very good seeing. Once it settled down the auto-guider rarely flickered past .5 of an arc-second. I am really enjoying imaging globular clusters, moon permitting, because they allow shorter exposures and that means a lot more subs in less time. So much easier to hack off the dead wood in sub-frame selector.

This is the same data as last year but with BlurXterminator applied with a manually calculated PSF value for each linear channel and then BlurXterminator is applied again but with Automated PSF so it can round up any eggs. A bit more work but that process seems to work well ** on crowded stellar fields.

** Chalk and Cheese really :-)

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Basic success
Started	...
Astrometry.net job	6929357
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC 6752 The Starfish Globular Cluster in Pavo with BlurXTerminator

NGC 6752 The Starfish Globular Cluster in Pavo with BlurXTerminator

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NGC 6752 The Starfish Globular Cluster in Pavo with BlurXTerminator

NGC 6752 The Starfish Globular Cluster in Pavo with BlurXTerminator

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