Part IV – Resources


Originated 2017 January 31




Spectroscopy, Part I – Using the SSON Transmission Grating Spectrograph


Spectroscopy, Part II – Generating a profile using Visual Spec


Spectroscopy, Part III – Analysing spectra using Visual Spec


Spectroscopy, Part V – The Miles catalogue of spectra


Examples of cometary spectra

The spectrum shown in Figure 1 is interesting in that it shows what can be done with relatively modest equipment. It was obtained by Rob Kaufman with a Canon 650D SLR on a Vixen Polarie with a Star Analyser grating attached to a 200mm lens. He comments ‘They show the SWAN-band emissions but also an underlying continuum of sunlight reflection from dust.  Unfortunately my camera sensor is not sensitive to the CN line in the violet’. The original can be seen at; http://i727.photobucket.com/albums/ww271/Rob_Kau/C2014Q2spectrum12Dec2014text.jpg~original Compare with the spectrum shown in Figure 2.


Figure 1. Swan bands in spectrum of comet C/2014 Q2 (Lovejoy). Credit Rob Kaufman


Swan bands, Figure 2, are a characteristic of the spectra of carbon stars, comets and of burning hydrocarbon fuels. They are named for the Scottish physicist William Swan who first studied the spectral analysis of radical carbon C2 in 1856. Swan bands consist of several sequences of vibrational bands scattered throughout the visible spectrum.


Figure 2. Spectrum of the blue flame from a butane torch showing excited molecular radical band emission and Swan bands. Credit Wikipedia/Deglr6328




Figure 3. Comet Hyakutake, 1996 Mar 28 to 1996 Apr 16 -  http://www.eso.org/~cguirao/caos/




Figure 4. Comet C/2009 P1 (Garradd)


A spectrum of comet C/2014 Q2 (Lovejoy) obtained by Eric Bryssinck can be viewed here.




Astronomical Spectroscopy for Amateurs by Ken M. Harrison and published by Springer




BAA Spectroscopy Database - https://britastro.org/specdb/




Paton Hawksley Education Ltd  - Star Analyser - http://www.patonhawksley.co.uk/staranalyser.html

            Forum - https://groups.yahoo.com/neo/groups/staranalyser/info


Shelyak Instruments - http://www.shelyak.com/


Observers and observatories


Christian Buil's - http://www.astrosurf.com/buil/


François Teyssier - http://www.astronomie-amateur.fr/


Iowa Robotic Observatory, Spectroscopy - http://astro.physics.uiowa.edu/~www/rigel/spectroscopy/


Richard Walker - http://www.ursusmajor.ch/astrospektroskopie/richard-walkers-page/


Robin Leadbetter -  http://www.threehillsobservatory.co.uk/astro/astro.htm




Amateur Astronomy Association, Spectroscopy Section (Germany) - http://spektroskopie.fg-vds.de/index_e.htm

            Forum - http://forum.vdsastro.de/viewforum.php?f=38


Astronomical Ring for Access to Spectroscopy (ARAS) - http://www.astrosurf.com/aras/

            Forum - http://www.spectro-aras.com/forum/


Astronomical Spectroscopy for Amateurs - http://astronomicalspectroscopy.com/

            Forum - https://groups.yahoo.com/neo/groups/astronomical_spectroscopy/info


Club of Aficionados in Optical Spectroscopy  (CAOS) - http://spectroscopy.wordpress.com/




Amateur Spectroscopy of Comets (a presentation at the BAA Comet Section meeting held in Northampton on 2013 May), Robin Leadbeater


First steps in Spectroscopy, David Boyd - http://www.britastro.org/vss/First%20steps%20in%20Spectroscopy.pdf


Variable Star spectroscopy - Workshop Edinburgh October 2008, Robin Leadbetter


2015 October Spectroscopy meeting held at the Norman Lockyer Observatory




Integrated Spectrographic Innovative Software (ISIS) - http://www.astrosurf.com/buil/isis/isis_en.htm


Rspec – Real Time Spectroscopy - http://www.rspec-astro.com/

            Forum - https://groups.yahoo.com/neo/groups/RSpec_Real_Time_Spectroscopy/info


Visual Spec - http://www.astrosurf.com/vdesnoux/