Hi,
Tried my Luck yesterday with this star. It is a stacked image of 20 subexposures each with 120s. Taken with the LISA on an AstroTech 8" RC reduced to f/5.
Is it correct ? I can only Identify the H-Balmer lines. Are there some He lines too ? Also if I compare my profile with a pro reference file B2i then at the blue end it is totally different. Is this OK ? I used Sadr in order to get my CCD response.
My dispersion is 2.952A/px
Thanks for looking and comments are welcome.
P Cygni
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P Cygni
regards Rainer____Observatorio Real de 14_____MÉXICO_____N 22° W 101°
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Re: P Cygni
Hi Rainer,
Good shot !
It seems correct (I don't know for wavelenghts under 4000 angströms)
For more precise comment, giev us a link to dat or fit spectrum
Of course, you have several HeI lines
You'll find line identification :
Stahl & al. (1993)
http://adsabs.harvard.edu/abs/1993A%26AS...99..167S
Markova & Zamanov (1995)
http://adsabs.harvard.edu/abs/1995A%26AS..114..499M
Kind regards
François Teyssier
Good shot !
It seems correct (I don't know for wavelenghts under 4000 angströms)
For more precise comment, giev us a link to dat or fit spectrum
Of course, you have several HeI lines
You'll find line identification :
Stahl & al. (1993)
http://adsabs.harvard.edu/abs/1993A%26AS...99..167S
Markova & Zamanov (1995)
http://adsabs.harvard.edu/abs/1995A%26AS..114..499M
Kind regards
François Teyssier
François Teyssier
http://www.astronomie-amateur.fr
http://www.astronomie-amateur.fr
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- Posts: 135
- Joined: Thu Sep 29, 2011 9:36 pm
Re: P Cygni
Hi Francois,
Thanks for the comments
Here is the *.dat file http://astroforo.net/astro/rspec/pcygni ... median.dat
Thanks for the comments
Here is the *.dat file http://astroforo.net/astro/rspec/pcygni ... median.dat
regards Rainer____Observatorio Real de 14_____MÉXICO_____N 22° W 101°