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Contains:  47 Tuc, NGC 104
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NGC 104, 


            Ben S Klerk
NGC 104

NGC 104

Technical card

Resolution: 4008x3054

Dates:July 16, 2018

ZWO LRGB blue: 39x180" -30C bin 1x1
ZWO LRGB green: 41x180" -30C bin 1x1
ZWO LRGB lum: 37x120" -30C bin 1x1
ZWO LRGB red: 44x180" -30C bin 1x1

Integration: 7.4 hours

Avg. Moon age: 3.90 days

Avg. Moon phase: 16.27%

Bortle Dark-Sky Scale: 4.00 job: 3268601

RA center: 0h 23' 47"

DEC center: -72° 4' 1"

Pixel scale: 0.571 arcsec/pixel

Orientation: 137.254 degrees

Field radius: 0.400

Locations: Home obs, Katoomba, New South Wales, Australia

Data source: Backyard


47 tuc is a globular cluster located in the constellation Tucana. It is about 13,000 light years away from Earth, and 120 light years across. 47 Tuc can be seen with the naked eye, with an apparent magnitude of 4.1, due to its far southern location, 18° from the south celestial pole, it was not cataloged by European astronomers until the 1750s.

47 Tucanae is the second brightest globular cluster after Omega Centauri, and it is one of the most massive globular clusters in the Galaxy, containing millions of stars. 47 tuc may contain a blackhole at the center.



Ben S Klerk
License: None (All rights reserved)

Sky plot

Sky plot


NGC 104, 


            Ben S Klerk