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Try with a 45cm telescope.
Recent back-illuminated CMOS color cameras (Neptune-C II) have high sensitivity in the infrared region, and the RGB color balance is lost. However, the sensitivity is high. When examined with 45 cm + 15 seconds exposure (gain 400, 360 sheets), a star with m = 20.91 was confirmed. Is it a benefit of high infrared sensitivity?
If its good seeing and transparency, optical axis of the telescope, and tracking are improved, it will be possible to capture the target 21 etc.
Recent back-illuminated CMOS color cameras (Neptune-C II) have high sensitivity in the infrared region, and the RGB color balance is lost. However, the sensitivity is high. When examined with 45 cm + 15 seconds exposure (gain 400, 360 sheets), a star with m = 20.91 was confirmed. Is it a benefit of high infrared sensitivity?
If its good seeing and transparency, optical axis of the telescope, and tracking are improved, it will be possible to capture the target 21 etc.