Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent nebula  ·  NGC 6888
WR136 HIP99546, Stephane Neveu
WR136 HIP99546
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WR136 HIP99546

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Description

Crop on NGC6888 (http://www.astrobin.com/98759 )

+ Raw spectrum

+ Normalised intensity spectrum

NIII / NIV lines presents. NV present but weak.

--> WR136 is a Wn6(h) Wolf rayet star

Pickering decrement on He II lines

He II excess on 6560 Ang showing presence of H hidden by helium.

Then spectral class WN6 is completed by (h) for hydrogen.

Cyg OB1 association

Stellar wind velocity 1750 km/s

distance 5000 a.l

Comments

Revisions

  • Final
    WR136 HIP99546, Stephane Neveu
    Original
  • WR136 HIP99546, Stephane Neveu
    B
  • WR136 HIP99546, Stephane Neveu
    E
  • WR136 HIP99546, Stephane Neveu
    F

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WR136 HIP99546, Stephane Neveu

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