Celestial hemisphere:  Northern  ·  Constellation: Hercules (Her)  ·  Contains:  Great Cluster in Hercules  ·  M 13  ·  NGC 6205
M13 taken with iStar Asteria 204-8 R35, JasonC
M13 taken with iStar Asteria 204-8 R35
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M13 taken with iStar Asteria 204-8 R35, JasonC
M13 taken with iStar Asteria 204-8 R35
Powered byPixInsight

Equipment

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Description

Image taken with my iStar Asteria 204mm aperture, f/8 refractor. Not an apochromatic, but a pretty good quality lense controls chromatic aberration. According to iStar Optical, this lense reduces chromatic aberration by 35% compared to an achromat of similar size/f ratio.

Image is a combination of Ha, OIII and Luminance data.

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M13 taken with iStar Asteria 204-8 R35, JasonC