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Old 01-08-2014, 02:54 PM
Rob_K
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Join Date: Oct 2006
Location: Bright, Vic, Australia
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Quote:
Originally Posted by Terry B View Post
I've also been taking spectra of eta car with my newly recommissioned L200 spectrograph.
An interesting star.

Terry
Good stuff Terry, hope you keep posting them! Rain's continuing here but might be a break over the next few days.

As a matter of interest I prepared a comparison graphic between your spectrum and mine of a few days before, hope you don't mind. Pleased to see that the SA100 is picking up all the major features of the high-res spectrum. What mine lacks of course is accurate calibration due to lens aberrations, the dispersion of yours (yours had to be severely 'concertinaed' to fit mine) and precise information on relative intensity due to vignetting (no flats!) & probably a non-linear camera response (??). But that's the difference between hi & low-res spectroscopy!

Keep up the good work!

Cheers -
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