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Spectrum!

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About this observation
Observer
David Swan
Time of observation
15/01/2018 - 19:24
Object
Alioth
Observing location
Tynemouth, UK
Equipment
200mm SCT @ f/6.3
ASI178MM
Star Analyser
FireCapture and RSpec
Exposure
1 frame: 400ms, 50% gain
Tags

My first (ok, first web-published) spectrum! The target was Alioth in UMa, an A type star. The Balmer alpha, beta and gamma absorption lines are clear. A hint of the delta too. This is the raw spectrum calibrated to wavelength - no instrument response correction!

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