• Astronomical catalogues of nebulae (3 C, 6 P)

C

• Carina Nebula (20 P)
• Circumstellar disks (2 C, 206 P)
• Cosmic dust (22 P)

D

• Dark nebulae (2 C, 32 P)
• Diffuse nebulae (12 P)

E

• Emission nebulae (7 C, 88 P)

F

• Fiction about nebulae (2 C, 3 P)

H

• H I regions (3 P)
• Herbig–Haro objects (9 P)
• High-velocity clouds (5 P)

I

• Images of nebulae (2 F)

L

• Lists of nebulae (7 P)
• Lyman-alpha blobs (5 P)

M

• Molecular clouds (1 C, 19 P)

N

• Nova remnants (11 P)

P

• Post-stellar nebulae (3 C, 1 P)
• Pre-stellar nebulae (1 C, 4 P)
• Pulsar wind nebulae (1 C, 6 P)

R

• Reflection nebulae (1 C, 47 P)

S

• Star-forming regions (1 C, 98 P)
• Superbubbles (7 P)

W

• Wolf–Rayet nebulae (1 C, 3 P)

Σ

• Nebula stubs (161 P)

• Nebula

B

• Bipolar nebula

C

• Circumstellar disc
• Crab (unit)

D

• Dark nebula
• Deep-sky object

E

• Emission nebula
• Evaporating gaseous globule

H

• H I region
• H II region
• Herbig–Haro object
• High-velocity cloud

I

• Integrated Flux Nebula
• Interstellar cloud

M

• Molecular cloud

N

• Nebulium

P

• Protoplanetary nebula
• Pulsar wind nebula

R

• Reflection nebula

S

• Supernova remnant

V

• Variable nebula

W

• Wolf–Rayet nebula

Z

• Zanstra method