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) : +72°31'19".
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.