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Alpha Lyrae (Vega) Spectrogram, 



    
        

            Joel Shepherd
Alpha Lyrae (Vega) Spectrogram, 



    
        

            Joel Shepherd

Alpha Lyrae (Vega) Spectrogram

Getting plate-solving status, please wait...
Alpha Lyrae (Vega) Spectrogram, 



    
        

            Joel Shepherd
Alpha Lyrae (Vega) Spectrogram, 



    
        

            Joel Shepherd

Alpha Lyrae (Vega) Spectrogram

Imaging telescopes or lenses: TEC 140 APO FL

Imaging cameras: Atik 460EX Mono

Mounts: Astro-Physics Mach1GTO

Guiding cameras: Lodestar X2

Focal reducers: TEC FRC (.9 reducer + FF)

Software: Field Tested Systems RSpec  ·  Sequence Generator Pro  ·  PixInsight 1.8

Filters: Paton Hawksley Education Ltd Star Analyser 200

Accessory: QHYCCD OFF AXIS GUIDER


Dates:June 16, 2020

Frames:Paton Hawksley Education Ltd Star Analyser 200: 12x1" (12") -10C bin 1x1

Integration: 12"

Avg. Moon age: 25.03 days

Avg. Moon phase: 21.19%

Bortle Dark-Sky Scale: 6.00


Basic astrometry details

Astrometry.net job: 3660850


Resolution: 1342x714

Locations: Home, Seattle, WA, United States

Data source: Backyard

Description

This is a calibrated and "corrected" spectrogram for Vega. Correction for instrument response (IR) was made using an IR curve from another night so it may be a little off, but it's probably pretty close. The blue line is a reference spectrum for an A0v-type star, of which Vega is a shining example. (Get it? Shining? Heh. :-) While the overall shape of the reference curve and my spectrum are similar, the reference curve does drop off more quickly, with deeper troughs. This may be due to simple qualitative differences in instrumentation and processing, but there may be other factors (e.g. atmospheric quality, extinction, etc.) that I'm not able to account for at this point.

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Histogram

Alpha Lyrae (Vega) Spectrogram, 



    
        

            Joel Shepherd

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