Bubble Nebula, Imaged with an
AP 10" f/14.6 Maksutov-Cassegrain
Image taken at prime focus with an AP 10" Mak-Cass, ST10E, Color Filter Wheel, one each
15 minute exposure RG, 20 minute B and 15 minute L in 2x2 binned mode, reduced to 532x800.
Image by Roland Christen of Astro-Physics
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