RY Draconis carbon star (spectro inside), 



    
        

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RY Draconis carbon star (spectro inside)

Technical card

Imaging telescopes or lenses: Teleskop Service - Orion Optics TS 8" f/4.5 ONTC Carbon Tube Newtonian

Imaging cameras: Atik 314L+

Mounts: Skywatcher AZ-EQ6 GT

Focal reducers: Baader Coma corrector RCC-1

Software: PixInsight  ·  Valérie Desnoux Visual Spec  ·  Christian Buil Isis

Filters: Paton Hawksley Education Ltd Star Analyser 200  ·  B  ·  G  ·  Astronomik IR 742nm


Dates:May 17, 2014

Frames:
Astronomik IR 742nm: 13x30" (6' 30") bin 1x1
B: 13x30" (6' 30") bin 1x1
G: 13x30" (6' 30") bin 1x1
Paton Hawksley Education Ltd Star Analyser 200: 35x10" (5' 50") bin 1x1
R: 13x30" (6' 30") bin 1x1

Integration: 31' 50"

Avg. Moon age: 17.71 days

Avg. Moon phase: 90.48%


Basic astrometry details

Astrometry.net job: 407547


Resolution: 700x550

Locations: @home under the street lights, Pibrac, Haute Garonne, France

Description

V* RY Dra (HD 112559 )

Semi-regular pulsating carbon star (spectral type C)

The image A is a combination of Near Ir R G B filters. The animated gif B shows each individual filter image. Note how the star is bright in the IR compared to the blue range. Its spectrum was acquired with a SA200 star analyser in the filter wheel, calibrated for dispersion and instrumental response correction.

Comments

Revisions

  • RY Draconis carbon star (spectro inside), 



    
        

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    Original
  • RY Draconis carbon star (spectro inside), 



    
        

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    B
  • Final
    RY Draconis carbon star (spectro inside), 



    
        

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    C

Histogram

RY Draconis carbon star (spectro inside), 



    
        

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