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Astrophotography of Star Clusters

Pleiades cluster, M45, Canon 40D

Pleiades cluster, M45

Date: March 29, 2011

Telescope: Astro-Tech 66ED f/4.8 piggybacked on Orion 120ED on a polar aligned CG5 mount

Camera: Canon EOS 40D

Exposure: 10 5-min subframes (50 min total) ISO 1600 guided with Meade DSI pro and Orion 120ED using PHD guiding.

Comments: Williams Optics 0.8x focal reducer, IDAS LPS P2 filter

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