NGC 2170 Nebula
The Angel in Monoceros
discovered in October, 1784 by William Herschel, is an amalgamation of three different types of nebulae: reflection, emission, and absorption.
The official designation, NGC 2170 actually refers to one of the small, blue patches, only.
These bluish areas are the reflection nebulae, reflecting the light of nearby, bright stars. The pink and red regions are emission nebulae,
and glow, due to stimulation of ultraviolet light from nearby stars. The dark black filaments are absorption nebulae, and let no light shine through.
This data is from Telescope Live's CH-2 system in Chile.
LARGE
discovered in October, 1784 by William Herschel, is an amalgamation of three different types of nebulae: reflection, emission, and absorption.
The official designation, NGC 2170 actually refers to one of the small, blue patches, only.
These bluish areas are the reflection nebulae, reflecting the light of nearby, bright stars. The pink and red regions are emission nebulae,
and glow, due to stimulation of ultraviolet light from nearby stars. The dark black filaments are absorption nebulae, and let no light shine through.
This data is from Telescope Live's CH-2 system in Chile.
LARGE