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WZ Cas: a carbon star


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About this observation
David Swan
Time of observation
16/02/2018 - 22:27
WZ Cas
Observing location
Tynemouth, UK
200mm SCT @ f/6.3
FireCapture and RSpec
100 x 500ms

I collimated the scope this eve before taking the latest spectrum. The seeing was OK and I was pleased with how sharp the spectrum of WZ Cas looked.

You can easily see the absorption troughs attributable to C2 and CN as well as the metal lines Na I at 5889/96 A and Li I at 6708 A.

* This is uncorrected for instrument response, and the units on the y axis are arbitrary.

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