The Pinwheel Galaxy in Triangulum
copyright Robert Gendler 2003
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M33 High Resolution Color Mosaic
The M33 color mosaic was assembled in Photoshop from 27 separate frames taken with an ST10XME,
12.5" RC and FSQ106. Cumulative exposure time was approximately 21 hours. The color data included several
hours of exposure time using a hydrogen alpha filter to reveal the numerous HII regions along the spiral arms.
The central frames had a raw FWHM
of 1.8 arcsec.