The telescopes and cameras are used almost exclusively for photometry. Variable stars, especially cataclysmic variables (CVs), eclipsing binaries (EBs) and RR Lyrae stars are the main targets for CCD observations, although other classes of objects are observed occasionally. One interesting target of opportunity was an eclipse of one of Jupiter's satellites by another satellite. Twice each Jovian orbit (every six years) Jupiter and the earth are aligned such that Jupiter's four major satellites mutually eclipse and/or occult each other. On Feb. 10, 2003, this light curve of Europa's shadow partially eclipsing Io was captured.

• Time series observations of cataclysmic variables to measure orbital and rotational periods of the stars and disk, as part of CBA
• Nightly monitoring of known and potential Z Cam-type CVs as part of the ZCampaign
• Surveying eclipsing binaries to detect those with delta Scuti component(s) (variables of type oEA)
• Photometry of multi-mode delta Scuti stars
• Monitoring stars with planets for exoplanet transits for the Czech Astronomy Society TRESCA section

• 2020 CCD photometry statistics: 147389 images yielding 16.0M photometric measurements
  
• 2019 CCD photometry statistics: 129975 images yielding 12.9M photometric measurements
  
• 2018 CCD photometry statistics: 102203 images yielding 10.0M photometric measurements
  
• 2017 CCD photometry statistics: 118431 images yielding 9.1M photometric measurements
  
• 2016 CCD photometry statistics: 64150 images yielding 8.7M photometric measurements
  
• 2015 CCD photometry statistics: 39088 images yielding 3.6M photometric measurements
  
• 2014 CCD photometry statistics: 37219 images yielding 1.2M photometric measurements
  
• 2013 CCD photometry statistics: 35347 images yielding 1.5M photometric measurements
  
• 2012 CCD photometry statistics: 36636 images yielding 1.1M photometric measurements
  
• 2011 CCD photometry statistics: 59888 images yielding 2.1M photometric measurements
  
• 1998-2010 CCD photometry statistics: 548,588 images yielding 8.2M photometric measurements
  
• 1999-00 AAVSO visual observation statistics: 2838 observations
  
• As of Jan 1, 2020 the primary archive contained 273 CDs and 770 DVDs (DVDs replaced CDs in 2006), holding a total of approximately 2.4TB of images. Both the raw and processed images as well as the extracted star data are archived for possible future reprocessing efforts. The Postgres table containing the image header information for all CDs and DVDs has data on 1.4 million images and the photometry table has 76 million rows, with each row representing an individual star measurement.

Publications

Highlighted articles:

• "The First Post-Kepler Brightness Dips of KIC 8462852", Boyajian, T. et al., 2018ApJ...853L...8B
• "OV Bootis: Forty Nights Of World-Wide Photometry", Patterson, J. et al., 2017SASS...36....1P
• "Superoutburst of CR Bootis: Estimation of mass ratio of a typical AM CVn star by stage A superhumps", Isogai, K. et al., 2016PASJ...68...64I
• "The Death Spiral of T Pyxidis", Patterson J. et al., 2014ASPC..490...35P
• "Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. IV. The Fourth Year (2011-2012)", Kato, Taichi et al., 2013PASJ...65...23K
• "ER Ursae Majoris: A dwarf nova with surprises", de Migeul, Enrique., et al., 2012SASS...31...79D
• "Modern Observations of Hubble''s First-discovered Cepheid in M31", Templeton, M. et al., 2011PASP..123.1374T
• "The 2010 Eruption of the Recurrent Nova U Scorpii", Pagnotta, Ashley S., et.al., 2011AAS...21733814P
• "The Pulsation Spectrum of VX Hydrae", Templeton, M. R., et.al., 2009PASP..121.1076T
• "Survey of Candidate Pulsating Eclipsing Binaries - I", Dvorak, S., 2009CoAst.160...64D
• "Frequency Analysis of Long-term AAVSO Visual Observations of TU Cas", Dvorak, S., 2008JAVSO..36..207D
• "Times of Minima for Neglected Eclipsing Binaries 2006-2007", Dvorak, S., 2008IBVS.5814....1D
• "Times of Maxima for Selected Delta Scuti Stars", Klingenberg, G., Dvorak, S. W., Robertson, C. W., 2006IBVS.5701....1K
• "Serendipitous Photometric Observations of the October 2004 Lunar Eclipse", Dvorak, S., 2005JAVSO..34...72D
• "A New Cataclysmic Variable in Hercules", Price, A.; et.al, 2004PASP..116.1117P
• "Misidentified and Missing Southern Eclipsing Binaries", Dvorak S., 2004IBVS.5549....1D
• "Updated Elements for Southern Eclipsing Binaries", Dvorak S., 2004IBVS.5542....1D
• "The Double Supergiant Binary OW Geminorum", Terrell, D.; et.al., 2003AJ....126..902T
• "Times of Minima for Neglected Eclipsing Binaries in 2003", Dvorak S., 2003IBVS.5502....1D
• "Photometry of OW Gem", Kaiser, D. H.; Henden, A. A.; et.al, 2002IBVS.5347....1K
• "GSC 05178 01376: A New W UMa Variable", Dvorak, S., 2000IBVS.4945....1D