47 Tucanae (NGC 104) A glorious southern Globular Custer with BlurXTerminator. (Ian Parr)

Celestial hemisphere: Southern · Constellation: Tucana (Tuc) · Contains: 47 Tuc Cluster · NGC 104

47 Tucanae (NGC 104) A glorious southern Globular Custer with BlurXTerminator., Ian Parr

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47 Tucanae (NGC 104) A glorious southern Globular Custer with BlurXTerminator.

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47 Tucanae (NGC 104) A glorious southern Globular Custer with BlurXTerminator.

47 Tucanae, or 47 Tuc (also designated NGC 104) is a globular cluster located in the constellation Tucana about 15,000 light years away from Earth and is about 120 light years in diameter.
47 Tuc can be seen with the naked eye, with an apparent magnitude of 4.1 and appears about 44 arcminutes across. It is the second brightest globular cluster after Omega Centauri, and telescopically reveals about ten thousand stars, many appearing within a small dense central core.

I was lucky enough to meet up with Peter Read of SDM Telescopes when he was delivering and finishing the setup an new 18" DOB (collimation at the eyepiece!) at the Astronomical Society of New South Wales' Wiruna property on a very good night as few years back. I offered a warm 8mm Ethos from my pocket and he asked if I had anything more powerful, so I dug out a 3mm Radian and we dived into into the heart of 47 Tucanae ... it looked like an open cluster! Unbelievable optics on an amazing mount with an exquisite Mark Sutching mirror.

Anyway, I digress. This is an amazing object but I was having major colour problems using BlurXTrerminator on a combined image. So I used PSF Image to obtain PSF values for each channel and applied BlurXTerminator separately before combining. Huge difference! After Globalised Hyperbolic Stretching very little to do. A very pleasing result from the best of a collection of old subs from 2019. Russell Croman has just pushed out an new AI library so it will be interesting to compare the results with that later. I think that from here on, this will be my default technique on all my objects as it seems to make a huge difference, particularly on star dense objects in RGB.

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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.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Status	Basic success
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Astrometry.net job	6904059
PixInsight job	n/a
PixInsight queue size	n/a
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47 Tucanae (NGC 104) A glorious southern Globular Custer with BlurXTerminator.

47 Tucanae (NGC 104) A glorious southern Globular Custer with BlurXTerminator.

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47 Tucanae (NGC 104) A glorious southern Globular Custer with BlurXTerminator.

47 Tucanae (NGC 104) A glorious southern Globular Custer with BlurXTerminator.

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