The Ritter Observatory Public Archive of Spectra of CH Cygni


Sample échelle spectrum of the symbiotic star CH Cygni in the Hα region.


Sample LDS spectrum of the symbiotic star CH Cygni in the Hα region.

File names are in the form: observation date followed by serial number, followed by file extension .fits, as in YYMMDD.NNN.fits prior to the year 2000 and YYYYMMDD.NNN.fits after.

A log of Ritter observations of CH Cyg through March 2007 is to be found here. Additional information about each exposure is included.

Below are 10 sample échelle spectra of CH Cyg with the spectrograph optimized for Hα. You can download all 69 such spectra (except 930924.011.fits) in the .tar or .zip file given below. Right click on link to download desired file.

  • 930924.011.fits
  • 931004.010.fits
  • 931008.010.fits
  • 931011.011.fits
  • 941003.012.fits
  • 941004.014.fits
  • 941010.012.fits
  • 951011.014.fits Reprocessed January 3, 2012 to correct a flat fielding problem with the night. The reprocessed version is not yet included in the compressed archives below.
  • 951016.022.fits
  • 951023.014.fits
  • CHCyg.tar.Z
  • CHCyg.zip

    Below are échelle spectra of CH Cyg with the spectrograph optimized for Hβ.

  • 940628.008.fits
  • 940630.015.fits

    Below are échelle spectra of CH Cyg in the wavelength range 5480-6870 Å. Hα is not included in these spectra due to gaps between échelle orders.

  • 940806.051.fits
  • 941028.018.fits

    Below are LDS spectra of CH Cyg with the spectrograph optimized for Hα unless otherwise noted.

  • 930808.016.fits
  • 930809.017.fits
  • 930822.017.fits
  • 930825.017.fits
  • 930908.020.fits (8220-9110 Å)
  • 950415.016.fits
  • 960711.016.fits
  • 960717.016.fits
  • 960723.015.fits
  • 960730.014.fits
  • 960731.021.fits
  • 960804.045.fits

    Document custodian: Nancy D. Morrison

    Page last updated: February 12, 2012