The Rosetta Nebula, also known as Cadwell 49, is a vast region located some 4700 light-years from the solar system in the direction of the constellation Unicorn. It was discovered by American astronomer Lewis Swift in 1865.
captured in my backyard in January
32 hours 40mn have been necessary.
TS ONTC 250/950,
ioptron cem120 mount,
zwo 294mm camera,
36mm Antlia filters 3nm
Ha 148×300″ 28×600″
OIII 86×300″
SII 46×300″ 28×600″