Jump to content


Photo

DIY 300 l/mm transmission spectrometer + Mammut L429

spectroscopy

  • Please log in to reply
2 replies to this topic

#1 Astrobodger

Astrobodger

    Member

  • Members
  • PipPip
  • 54 posts

Posted 03 April 2013 - 10:34 PM

Here's Arcturus again as a comparison using the Mammut CCD and the surplus shed adjustable slit.

Arct_mam1.png

 

I was very surprised how the well the telluric oxygen lines are defined!

 

Thanks for looking

 

John

 

P.S. I promise no more Arcturus spectra


Celestron 8" F5 Newt on EQ5

Spectrographs 300 l/mm & 1200 l/mm, SA100

Mammut L429, Canon 1000d, Canon 450d

 

http://uk.groups.yah...up/astrobodger/


#2 astrodoc71

astrodoc71

    Advanced

  • Administrators
  • 508 posts

Posted 04 April 2013 - 08:36 AM

Looks great! Do you think the slit makes a significant difference with a brighter star like this?

Just to clarify for the beginning spectroscopists, oxygen is at both 680 or so, and 760nm ? Feel free to post as many Arcturus spectra here as you like! 

Thanks John,

Dave


daveandtelescope.wordpress.com


#3 Neil

Neil

    Administrator

  • Administrators
  • 1,493 posts

Posted 04 April 2013 - 10:18 AM

That's an excellent result John,

 

You must be very pleased with the way the new camera has performed.

 

Clear Skies

 

Neil.







Also tagged with one or more of these keywords: spectroscopy