Nebulae

NGC 1499, the California Nebula
NGC 1499, the California Nebula

Emission nebula in Perseus. If I shot the entire length and flipped it left to right it really would look like CA!

NGC 7635, the Bubble Nebula
NGC 7635, the Bubble Nebula

Emission nebula in Cassiopeia

Helix Nebula
Helix Nebula

Planetary nebula in Aquarius

NGC 6888, the Crescent Nebula
NGC 6888, the Crescent Nebula

NGC 6888 is an emission nebula in Cygnus, about 5000 ly distant. This is CFHT palette in narrowband light. About 5 hours or Ha and 3 each of OIII, SII and luminance.

NGC 7000, the North American Nebula
NGC 7000, the North American Nebula

Taken at Two Goats Observatory (my driveway). Five hours of Ha, two and two thirds hours each of SII and OIII plus two hours of luminance data. This is a false color image so called because it maps Ha to red, OIII to green and SII to blue even though SII is an even deeper red than Ha. Narrowband (NB) filters enhance contrast of emission objects by accepting only a narrow range of wavelengths around the emission lines of hydrogen (H-a, 656 nm), oxygen (OIII, 501 nm), sulfur (SII, 672nm)

The Dumbbell Nebula
The Dumbbell Nebula

M27, a planetary nebula in Vulpecula in CFH telescope narrowband palette.

The Eagle Nebula
The Eagle Nebula

M16, the Eagle Nebula in Serpens. Over thirty hours of narrowband data (Ha, OIII and SII) mapped to the Canada-France-Hawaii Telescope palette. Where the Hubble palette maps Ha to green, SII to red and OIII to blue, the CFHT palette is Ha-OIII-SII as RGB.

Horsehead and the Flame
Horsehead and the Flame

The Horsehead Nebula and Flame Nebula in Orion.

M42, The Great Orion Nebula
M42, The Great Orion Nebula

The Orion Nebula is a diffuse nebula situated south of Orion's Belt in the constellation of Orion. Part of the Orion Molecular Cloud Complex, you can see part of the Running Man Nebula on the left.

The Witch's Broom
The Witch's Broom

The western veil nebula, a supernova remnant in Cygnus

M97
M97

The Owl Nebula, a planetary nebula in Ursa Major

M57
M57

The Ring Nebula, a planetary nebula in Lyra

M27
M27

The Dumbbell Nebula, a planetary nebula in Vulpecula

M20
M20

The Trifid Nebula, an H II region in Sagittarius.

M8
M8

The Lagoon Nebula

M1
M1

The Crab Nebula, a supernova remnant in Taurus