Bernd Brinkmann´s

Comet 21 P/Giacobini-Zinner

date (yy/mm/dd)	time (UT)	exp. time (min/sec)	camera / telescope	film / CCD	filter (IF=Interference)	Remarks
98/11/21	17:43:15 - 17:54:45	4 x 180 sec	120 mm refractor f / 5	Starlight SX	IF-Green + IR-block	processing with MIRA A/P: bias, dark, flat register (on comet) combine (sum) rescale write FITS processing with Photoshop: open as 16 bit FITS log scaling save as 8 bit-TIF clipping save as JPEG
98/08/16	21:34:27	180 sec	Askania Schmidtkamera (340/500/1375 mm) (Newton-Focus)	SBIG ST-6	---	processing with CCDOPS: dark processing with MIRA A/P: flat rescale write FITS processing with Photoshop: open as 16 bit FITS log scaling save as 8 bit-TIF clipping save as JPEG

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