NGC 1788 in Orion
Exposure time total:
Astro-Physics 175mm f/8 Starfire EDF with field flattener (f=1452mm)
10micron GM3000 HPS
L 30x6 min, RGB 12x6 min each
Moravian G4-16000 with Baader filters
Image acquisition by CEDIC team
(Bernhard Hubl, Christoph Kaltseis, Markus Blauensteiner)
Image processing by Bernhard Hubl
1 300 Ly
NGC 1788 is a reflection nebula in the constellation Orion. NGC 1788
is an unusual reflection nebula (bluish white at the center)
surrounded by a glowing red ring of hydrogen gas.
The stars inside the nebula are only about a million years old,
which is very young compared to most stars.
The ring of glowing hydrogen gas is energized by nearby hot, massive stars.