Getting plate-solving status, please wait...
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
Filters
Paton Hawksley Education Ltd Star Analyser 200
Accessories
QHYCCD OFF AXIS GUIDER · TEC FRC (.9 reducer + FF)
Software
Field Tested Systems RSpec · Sequence Generator Pro · PixInsight 1.8
Guiding Cameras
Lodestar X2

Acquisition details

Dates:
June 16, 2020
Frames:
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.

Comments

Histogram

Alpha Lyrae (Vega) Spectrogram, 



    
        

            Joel Shepherd

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