NGC 3521 - Bubble Galaxy

Posted by tomdiana
on Monday, April 11, 2016

Taken with 152mm APM refractor using a modified Canon 650D (raw capture; ISO 3200). Guided with SSAG Pro on 200mm Takumar lens. 24 subframes of 7.5 min. ( 3 hrs. total) were aligned and combined in ImagesPlus. The composite was adjusted in Photoshop. Taken from my backyard observatory in southeastern Minnesota on 3/28/16.

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