Hubble Palette SII-Ha-OIII narrowband image of the Swan Nebula with RGB stars overlaid.. Imaged from Denton, Texas. Equipment: ATRC12, ST-10XME, Astrodon Filters, and MI-250 mount. Total exposure: 13 hours 45 min. Imaged by Donald Waid. Complete description on web page:
http://www.waid-observatory.com/m017-2015-07-28-NB.html
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