Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  NGC 436  ·  NGC 457  ·  The star φCas
NGC 457 Owl Cluster in Cassiopeia, Harri Heikkinen
NGC 457 Owl Cluster in Cassiopeia
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NGC 457 Owl Cluster in Cassiopeia

NGC 457 Owl Cluster in Cassiopeia, Harri Heikkinen
NGC 457 Owl Cluster in Cassiopeia
Powered byPixInsight

NGC 457 Owl Cluster in Cassiopeia

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Description

First deep sky trial of 500mm f8.0 Maksutov-Cassegrain MTO MC-3M 5CA in heavily light polluted backyard. Canon 1100d ISO 1600 (unmodified) with Skywatcher Az-Gti alt-az mount. 68x15" Lights. Calibration: 25 flats, 20 darks, 25 dark flats, 20 bias.

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