Getting plate-solving status, please wait...
WR-137 Spectrogram, 



    
        

            Joel Shepherd
WR-137 Spectrogram, 



    
        

            Joel Shepherd

WR-137 Spectrogram

Getting plate-solving status, please wait...
WR-137 Spectrogram, 



    
        

            Joel Shepherd
WR-137 Spectrogram, 



    
        

            Joel Shepherd

WR-137 Spectrogram

Imaging telescopes or lenses: TEC 140 APO FL

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:July 6, 2020

Frames:Paton Hawksley Education Ltd Star Analyser 200: 12x75" (15') -10C bin 1x1

Integration: 15'

Avg. Moon age: 16.11 days

Avg. Moon phase: 97.98%

Bortle Dark-Sky Scale: 6.00


Basic astrometry details

Astrometry.net job: 3658935


Resolution: 1342x714

Locations: Home, Seattle, WA, United States

Data source: Backyard

Description

WR-137 is a Wolf-Rayet star in Cygnus. Wolf-Rayets were first discovered in 1867, standing out because of their intense emission lines (e.g., the carbon and helium spikes shown here) compared to the smoother spectra with narrow absorption lines observed in most other star types. Wolf-Rayets are generally hydrogen-poor and are fusing their heavier elements. They are extremely hot and luminous: WR-137's luminosity is uncertain due to its having an O-Type companion, but is probably 10's of 1000s times more luminous than the sun.

Comments

Histogram

WR-137 Spectrogram, 



    
        

            Joel Shepherd

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Spectroscopy