NGC40 planetary nebula spectrum


NGC40 is a low-exitation planetary nebula. The central star (V=11.5) is a Wolf-Rayet star (WC type). R.A. (2000) : 00h35m01s, Dec. (2000) : +7231'19".

Instrument : Celestron 9  (D = 0.235 m) + LISA spectrograph (
click here for technical informations) at R = 1000 (23 microns slit) + Atik460EX CCD camera
Observatory : Castanet-Tolosan
Observer : Christian Buil
Exposure : 5  x 300 s for nebular region, 6 x 600 s for central star
Download the central star spectrum here :
_ngc40_neb_20121115_736_cbuil.fit
Download the nebula spectrum here :
_ngc40_star_20121115_712_cbuil.fit
 



Guiding camera NGC40 aspect (the slit width is 23 microns).


 

Position of "star" and "nebula" spectra zone extraction in the 2D nebula image.





Colored 2D images.




NGC 40 nebula spectrum.

NGC 40 central star spectrum.


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