Starry Vistas by Don J. McCrady
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M27 - The Dumbbell Nebula

M27 is a planetary nebula in the constellation of Vulpecula, one of the brightest in the sky. It is the luminous shell of gas sloughed off by a dying central star.

Narrowband

This is a false colour version with red mapped to a combination of H-alpha and Sulfur-II, and blue and green mapped to Oxygen-III.

Takahashi Sky 90 at f/4.5
SBIG STL-4020M (remote guide head)
Takahashi EM-200
H-Alpha: 8x20 minutes
OIII: 9x20 minutes
SII: 13x20 minutes
Processed with Maxim/DL, CCDStack, and Photoshop CS4
Noel Carboni's Astronomy Tools


HaLRGB

Click forfull resolution

Takahashi Sky 90 at f/4.5
SBIG STL-4020M (self-guided)
Takahashi EM-200
Hutech LPS Filter
Ha: 3:40 (20 minute subexposures)
Luminance: 1:40 (5 minute subexposures)
RGB: 30 minutes each channel (5 minute subexposures, taken on 2006-06-25)
Processed in Maxim/DL, ImagesPlus, and Photoshop
Noel Carboni's Astronomy Tools Actions