Celestial hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  Great Nebula in Orion  ·  M 42  ·  M 43  ·  NGC 1976  ·  NGC 1980  ·  NGC 1982  ·  The star 42Ori  ·  The star 45Ori  ·  The star θ1Ori  ·  The star θ2Ori  ·  The star ιOri
Messier 42 Great Nebula in Orion, Harri Heikkinen
Messier 42 Great Nebula in Orion
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Messier 42 Great Nebula in Orion

Messier 42 Great Nebula in Orion, Harri Heikkinen
Messier 42 Great Nebula in Orion
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Messier 42 Great Nebula in Orion

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Description

Early 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. 52x30" lights + 39x15" lights + 20x5" lights. Calibration: 20 flats, 20 darks, 20 dark flats, 20 bias.

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