Planetary Nebula Spectroscopy
 Shelyak Alpy 600 & C9.25 SCT
Jim Ferreira, Livermore CA

C9.25 & Alpy 600 spectrograph
Alpy 600 spectrograph with off-axis mirror slit guider and Atik 420M CCD camera for recording spectra
Losmandy GM8 mount using PHD autoguiding software and DMK41 digital video camera

Spectroscopy computer equipment, video finderscope
        display
Covered roll around computer cart with laptop and video finder scope CRT monitor


Spectroscopy of M57 & NGC 6543, Alpy 600
2-D elemental mapping of raw spectra showing nebula elemental cross sectional variations, M57 & NGC 6543, Alpy 600


Spectroscopy of NGC 7662, Alpy 600
2-D elemental mapping of raw spectra showing nebula elemental cross sectional variations, NGC 7662, Alpy 600


Spectroscopy of M57, Alpy 600
Spectra profile for M57 showing minor relative differences is elemental concentration between east end west ends of nebula, Alpy 600


M57 Spectroscopy, Alpy 600
Spectra scans in 2 orientations mapping elemental intensities, Alpy 600


Spectroscopy of NGC 6543, Alpy 600
Spectra profile for NGC 6543 showing minor relative differences is elemental concentration between north and south ends of nebula, Alpy 600


NGC 7662 planetary nebula spectra, Alpy 600
Spectra profile for NGC 7662, image of spectrograph slit shows region of nebula spectra was recorded, Alpy 600


NGC 6826 elemental mapping, Alpy 600
2-D elemental mapping of raw spectra showing nebula elemental cross sectional variations, NGC 6826, Alpy 600


NGC 6826 spectra profiles, Alpy 600
Spectra profiles for NGC 6826 showing minor relative differences is elemental concentrations in nebula FLIERs, Alpy 600


NGC 6826 Spectroscopy, Alpy 600
Comparison of [N II] concentrations in FLIERs  and disk of nebula at 6548A and 6584A, NGC 6826, Alpy 600


Eskimo Nebula Spectra, Alpy 600





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