Celestial hemisphere:  Northern  ·  Constellation: Monoceros (Mon)  ·  Contains:  12 Mon  ·  LBN 948  ·  LBN 949  ·  NGC 2237  ·  NGC 2238  ·  NGC 2239  ·  NGC 2244  ·  NGC 2246  ·  Rosette A  ·  Rosette B  ·  Rosette Nebula  ·  Sh2-275  ·  The star 12Mon
NGC2244, Dong Liang
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NGC2244

NGC2244, Dong Liang
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NGC2244

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Description

First field try in 2021. With CEM70 mount DEC bug fixed. Tracking error reduced to under 0.5 arcsec on my BKP250/1000 for the first time. Suddenly the sky become so attractive again. . Unfortunately, as guiding accuracy increases, so come the problems of collimating and focusing. Well, I failed to solve those this time, will try to improve some other time. Found a solution to separate stars and nebula perfectly, so I can fix stars while not hurting the nebula. The result is satisfying at this time.

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NGC2244, Dong Liang