1200 ln/mm grating:	H-alpha	6320-6920 Ang range
	H-beta	4465-5075 Ang range

The capabilities of the B&C spectrograph + first-light CCD camera used at the highest dispersion (i.e. with the 1200 ln/mm grating for a 1.0 Ang/pix dispersion and 2.0 Ang resolution) are documented by spectra in the H-alpha and H-beta regions of CH Cyg (a V=9.0 mag AGB star heavily interacting with a white dwarf companion) and associated comparison spectra.

CH Cyg	H-alpha	5 min expt	incl. 25 deg, 200 micron slit, 1998 Aug 25, UT 20:53
	H-beta	6 min expt	incl. 18 deg, 200 micron slit, 1998 Aug 25, UT 21:10

Click on the following thumbnails for the 2-D original CCD frames



Click on the following thumbnails for the extracted 1-D spectra