Starry Vistas by Don J. McCrady
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NGC 281

This bright nebula in Cassiopeia is often whimsically referred to as the Pacman Nebula, and lies about 9500 light years distant.


Narrowband

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Takahashi Sky 90 at f/4.5
SBIG STL-4020M (remote guide head)
Takahashi EM-200
Ha/SII/OII: 3 hours each channel (20 minute subexposures)
Processed with Maxim/DL, CCDStack, and Photoshop CS4
Noel Carboni's Astronomy Tools


HaRGB

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Takahashi Sky 90 at f/4.5
SBIG STL-4020M (self-guided)
Takahashi EM-200
Hutech LPS Filter
Ha: 2:40 (20 minute subexposures)
RGB: 45 minutes each channel (5 minute subexposures)
Processed in Maxim/DL and Photoshop
Noel Carboni's Astronomy Tools Actions