230820 SH2-137 Cepheus Nebulosity - RASA36 IHO.tiff
IHO (Infrared-Halpha-OIII) image, ASI6200MM PRO, 9.1h integration time (selected from 12h in 3 nights), good to very good seeing (1.2"-1.5"). No moon.
27.08.2023, 22:21:26

      

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