(meteorobs) Polish colour meteor spectrum

[brahi at op.pl]

Hello Ed and all :)

It's simple and effective method. I've found that two crossed grating of this type gives not four but even eight different spectras located around the light source. With this two gratings it's a chance to detect spectra of meteor located in any direction with respect to camera field of view.
Camera with 1.8/35 and these gratings is now located in eastern part of Poland, we organize the perseid campaign there. I hope that new spectra should be captured during next few days :)

Best greetings

Przemyslaw Zoladek
Polish Fireball Network



 
"Ed Majden" <epmajden at shaw.ca> napisał(a): 
 > ?I received a reply from Jiri Borovicka re the Polish colour meteor  
 > spectrum, see below.  I also noted the use of crossed gratings.  I  
 > wish more details were included with this.  This could solve the  
 > direction of the meteors flight path re dispersion.  If anyone gets  
 > any more information on this please let us know.
 > 
 > Ed Majden
 > Courtenay, B.C. Canada
 > 
 > Comment from Jiri Borovicka:
 > 
 > Dear Ed,
 > 
 > the dispersion of the spectrum is not bad, it is much higher than
 > in video spectra and comparable to classical photographic spectra.
 > I have personally no experience with digital camera spectroscopy,
 > nevertheless, I suppose that photometry could be done after some
 > calibration. I can understand the Polish text only partly. An
 > interesting aspect is the usage of two crossed gratings.
 > 
 > The spectrum itself is a typical spectrum of a low velocity
 > fireball. The identification of Si+ at 4131 A is erroneous,
 > it must be another Fe line.
 > 
 > With regards
 > 
 > Jiri
 > 
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