Conditions:

Date: 2020 04 20

Mount: Losmandy G11 + Gemini 1
Optic; Newtonian Telescope F/D=4 + flattener corrector
Focale: 800mm - Diameter:200mm Camera: ZWO ASI294 Pro + IR cut 2"
Site: Bois de Nefles Saint-Paul 55°19'54"E / 20°59'58"S
Seeing: Humidity + Light polution
Capture: 25 x 240 sec Temp: -12 deg
Guidind refractor 400mm + ZWO Asi178 (+-1.45" arc)(medium)
Software: OS Ubuntu-Linux - Oacapture - PHD guiding - Siril - Gimp

Informations:
The largest globular cluster in the Milky Way
Magnitude: 3,9
Distance: 15,800 light-years
approximately 10 million stars
identified by Edmond Halley in 1677

<==== Clic on the picture to obtain the full HD format


HOME