Black Magellanic Cloud
Crab Nebula
Gegenschein
bright diffuse nebula
coalsack
counterglow
dark cloud
dark nebula
diffuse nebula
dust cloud
gaseous nebula
nebula of Lyra
nebular hypothesis
nebulosity
nebulous stars
planetary nebula
ring nebula
the Coalsack
zodiacal light
nebulae
dapple
fleck
formulation
maculation
patch
preparation
speckle
spot
symptom
spiral nebula
nebular
nebulous
archipelago
comet
constellation
fireball
galaxy
orb
pinpoint
whirlpool