M13 (Observations)

	RGB image from the 2008/09/28 observation.
	Image taken by Markus Schindewolf on 2012/05/26
	Image taken by Markus Schindewolf on 2014/06/06 with 50cm EHT
	Image taken by Markus Schindewolf on 2012/06/06 with APO
!	Image taken by Philipp Weber and Eva von Gemünden on 2019/04/18 with EHT
	Image taken by Philipp Weber and Eva von Gemünden on 2020/06/23,25 with EHT
	Image taken by Philipp Weber on 2023/06/21 with the CHT

Date	Observer	Telescope	Camera	Exposure	Calibration	Seeing / Sky / Transparency	Path
2008/09/18	Hirsch	60cm	SBIG ST11k	60sec B, 60sec R, 60sec G	?	? / ? / ?	/data/CCD/M13/2008-09-18.Hirsch/
2008/09/28	Hirsch	60cm	SBIG ST11k	600sec B, 600sec R, 600sec G , 600sec Clear	1x600sec DF / FF ?	? / ? / ?	/data/CCDM13/2008-09-28.Hirsch/M13/2008-09-18.Hirsch/
2012/05/26	Schindewolf	40cm	EOS 60d IDAS LP2	135sec x 19 ISO 1600	Darkframes	seeing mittelmäßig
2014/06/06	Schindewolf	50cm	SBIG ST11k	8x360s clear, je 3X360 RGB (2binned)	Darks, Flats, Flatdarks	ok
2008/06/06	Schindewolf	APO	EOS 60d mit IDAS Lp2	20x 450s	Darks, Flats	ok
2019/04/18	Weber, von Gemünden	EHT	SBIG STX-16803	10x90s LRGB each	Darks, Flats	median/clear/bad (full moon)
2020/06/23,25	Weber, von Gemünden	EHT	SBIG STX-16803	16xL, 18xR, 17xG, 17xB, 90s each	Darks, Flats, Dark Flat, Bias, guided, dithering 4px, processing using PixInsight	median/clear/bad (around sommer solstice, no astronomical darkness)	Full resolution
2023/06/21	Philipp Weber	CHT	Canon EOS 6D	308x30s, ISO6400	Bias, Flats	median/clear/bad (sommer solstice)