M15 Globular Cluster – Pegasus October 2017 – Observer’s Challenge Report

October 2017 Observer’s Challenge:  Click on the following link for full report. 

OCTOBER 2017 OBSERVERS CHALLENGE – M-015 2  

Easy to see in 7 x 50 finder.  10-inch reflector at 267x, M15 appears mostly round with a bright intense middle, and an excellent resolve of stars in the outer regions.  When using averted vision, an intermittent sprinkling of faint pin-point stars in the central region.  An impression of dark lanes extending outward from the core and a star chain around the SSW edge.  Bright field star to the north.

3.5-inch Maksutov, M15 appears circular with a very bright and intense center.  There is no resolution of stars with this aperture.  RI 

Pencil sketch 10-inch reflector at 267x 

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Image of M15 by James Dire from Hawaii using an 8-inch f/8 RC telescope  

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M15 photo by Mario Motta of Massachusetts using a 32-inch telescope. 

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