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Old 12-09-2019, 12:23 PM
Startrek (Martin)
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Location: Sydney
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NGC 104 Globular Cluster

Itís been a year to the day since I last captured Globular Cluster NGC104 or commonly known as 47 Tucanae
Located in the constellation of Tucana not far from the SMC
At 4.1 magnitude itís quite a bright target and distance from earth around 15,000 light years

92% waxing moon overhead , Bortle 8 Sydney skies ,no wind and no dew
6Ē f6 Bintel newt on a HEQ5 mount
Canon 600D with Baader coma corrector
ISO 800
No filters
42 x 90sec dithered guided subs
20 x darks
One of the best nights for guiding my HEQ5 with PHD2 so far even though the target was quite low at 35 deg rising up to 50 deg before my roof blocked the view at 11.30pm ( My payload is 9kg or 67% loaded ) Total error 1.12 to 1.20 arc sec error ( RA 0.17 pixels and DEC 0.15 pixels )graph was really smooth with consistent even pulse corrections outside dithering
Stacked in DSS
Processed in Startools

Thanks for looking , comments most welcome
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  #2  
Old 12-09-2019, 01:38 PM
casstony
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Nice star colours Martin.
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Old 13-09-2019, 02:31 AM
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Ant0nio (Tony)
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Nice job Martin
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