47 Tucanae from Bortle 7 skies (Ignacio Diaz Bobillo)

Celestial hemisphere: Southern · Constellation: Tucana (Tuc) · Contains: 47 Tuc Cluster · NGC 104 · NGC 121

47 Tucanae from Bortle 7 skies, Ignacio Diaz Bobillo

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47 Tucanae from Bortle 7 skies

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47 Tucanae from Bortle 7 skies

Last Monday I collected 182 40-second subs of luminance (2 hours total), from my backyard observatory under an almost full moon. I used short subs to avoid saturation of the core. Then, I combined the result with a color image with lesser resolution from 2015, acquired with a DSLR from better skies (https://astrob.in/211507/C/). The result turned out decent, after putting a big fight to control background noise.

Although this GC belongs to the Milky Way, the object is escorted on the left by NGC 121 (a GC in the Small Magellanic Cloud), and on the right by star cluster Kron 3 (not sure if it is open or globular).

Original
Final
B
C

B

Description: Reduced a bit the bloat in red stars, and increased saturation to bring out the blue stars.

Uploaded: ...

C

Description: An insert with one of the HST images of the core ( https://esahubble.org/images/heic1510a/ ) , registered to the current image.

Uploaded: ...

The refractors!
Astrofotógrafos de Argentina

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Status	Basic success
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Astrometry.net job	5128380
PixInsight job	n/a
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47 Tucanae from Bortle 7 skies

47 Tucanae from Bortle 7 skies

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47 Tucanae from Bortle 7 skies

47 Tucanae from Bortle 7 skies

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