| The capabilities of the B&C spectrograph + first-light CCD camera used at the lowest dispersion (i.e. with the 150 ln/mm grating for a 7.5 Ang/pix dispersion and 15 Ang resolution) are documented by the following spectra of 58 Aql (an A-type V=5.8 mag spectrophotometric standard), HM Sge (a symbiotic nova, erupted in 1975 and still close to maximum light at V=11.5 mag), and the enigmatic object FG Sge (the fast evolving central star of planetary nebula at V=15.8 mag at the time of our observations). |
| HM Sge | V= 11.5 | 4 min expt | incl. 2.3 deg, 200 micron slit, 1998 Aug 26, UT 22:05 |
| FG Sge | V= 15.8 | 20 min expt | incl. 2.3 deg, 200 micron slit, 1998 Aug 26, UT 22:35 |
| 58 Aql | V= 5.8 | 20 sec expt | incl. 2.3 deg, 200 micron slit, 1998 Aug 26, UT 21:01 |
| Comparison | 1 sec expt | incl. 2.3 deg, 200 micron slit, 1998 Aug 26, UT 21:06 |
Click on the following thumbnails for the 2-D original CCD frames
Click on the following thumbnails for the extracted 1-D spectra
