DSLR Astrophotography: NGC247, NGC246, & Caldwell 51
Posted: 24 November 2017
Open: Thursday, 23 November 2017, 2131 MST
Conditions: Mostly clear
2137 MST: LX600 ON, StarLock OFF, High Precision OFF.
Viewed NGC247 (galaxy), 102X.
Then began setting up for imaging. Mounted the D7200 DSLR at prime focus + focal reducer. Focused on the star Aldebaran using a Bahtinov Mask and locked the mirror. Slewed to NGC247.
2151 MST: StarLock ON. There were some thin clouds visible near my first two imaging targets. That caused lots of poor seeing and poor autoguiding. Had to take several exposures to get good tracking. All these images were cropped from the full-frame image.
NGC247 (galaxy), StarLock autoguided, 5 minutes, ISO 6400, White Balance 3570K
NGC246 (planetary nebula) & satellite, StarLock autoguided, 1 minute, ISO 6400, White Balance 3570K
Caldwell 51 (irregular galaxy), StarLock autoguided, 5 minutes, ISO 6400, White Balance 3570K
2250 MST: StarLock OFF. Ended imaging. Clouds were increasing.
Viewed M42 (Great Nebula in Orion), 102X.
2258 MST: LX600 OFF.
Close: Thursday, 23 November 2017, 2306 MST
Session Length: 1h 35m|
Conditions: Partly cloudy
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