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WR 140

Technical card

Imaging telescope or lens: SkyWatcher Newton 150-750

Imaging camera: Atik 314L+

Mount: Sky-Watcher HEQ5

Guiding telescope or lens: SkyWatcher Newton 150-750

Guiding camera: ZWO Optical ASI120MM

Software: Astrobodger Bass v1.8.2

Filter: Shelyak Instruments Alpy 600

Resolution: 1600x520

Dates: Aug. 11, 2016

Frames: 11x120"

Integration: 0.4 hours

Avg. Moon age: 8.05 days

Avg. Moon phase: 57.08%

Astrometry.net job: 1772871

Locations: OHP, Observatoire de Haute Provence, Haute Provence, France

Description

Spectre de WR140.
C III λ5696, C III/C IV λ4650, C IV λλ5801–12, and OV λλ5572–98.
Donc étoile WC avec CIII > O V Type WC7

Série de Balmer, Hα alpha, Hβ beta, Hγ gamma, Hδ delta, Hε epsilon, Hζ zeta + NaI à 5890 ---> Etoile O5

Etoile double WC7+O5
Vitesse vent CIV par FWHM -> 2700 km/s

Comments

Author

Stephane Neveu
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Histogram

WR 140, 




    

        Stephane Neveu