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| LP-1 Broadband | LP-2 Narrowband | LP-3 Oxygen III | LP-4 Hydrogen Beta |
Object |
Examples |
Visual (light polluted) |
Visual (dark site) |
Stars and Clusters |
M-13, M-11 |
LP-1 Broadband |
none, LP-1 Broadband |
Diffuse Nebula |
M-8 (Lagoon), M-16 (Swan) |
LP-1 Broadband, LP-2 UHC, LP-3 O3 |
LP-1 Broadband, LP-2 UHC |
Planetary Nebula |
M-57 (Ring), M-27 (Dumbbell) |
LP-1 Broadband, LP-2 UHC, LP-3 O3 |
none, LP-2 UHC, LP-3 O3 |
Faint Planetary |
NGC-7293, Abell 33 |
LP-3 O3, LP-2 UHC |
LP-2 UHC, LP-3 O3 |
Reflection Nebula |
M-45 Pleiades, M-20 Trifid |
none, LP-1 Broadband, LP-2 UHC |
none, LP-1 Broadband, LP-2 UHC |
Faint Nebula |
Veil, Rosette |
LP-3 O3, LP-2 UHC |
LP-2 UHC, LP-3 O3 |
Galaxies |
M-101, M-33 |
none, LP-1 Broadband |
none |
H-Beta Emission |
California, Horse Head |
H-Beta |
H-Beta |