Ph.D. Astronomy, University of Florida, 1994
M.S. Astronomy, University of Florida, 1989
B.S. Physics, Clemson University, 1987
Section Manager and Astrophysicist, Southwest Research Institute, 1999-
President and CEO, Falcon Networking, Inc., 1996-1999
Adjunct Professor, Department of Natural Sciences, Santa Fe Community College, 1990-1998
University Fellow and Sessional Instructor, Department of Physics and Astronomy, University of Calgary, 1994-1995
NASA Graduate Research Fellow, Department of Astronomy, University of Florida, 1991-1994
Teaching Assistant, Department of Astronomy, University of Florida, 1987-1991
Research Associate, Morgantown Energy Technology Center, US Dept. of Energy, 1985
International Astronomical Union
International Association of Astronomical Artists
University Fellow 1994-1995 (University of Calgary)
NASA Graduate Student Research Fellow 1991-1994 (University of Florida)
Daniel Foundation Scholar 1983-1987 (Clemson University)
Alumni Presidential Scholar 1983-1984 (Clemson University)
President's List and Dean's List (Clemson University)
1983 US Army Reserve National Scholar-Athlete
Eclipsing Binary Stars, AAVSO Fall meeting, 2007
Eclipsing Binary Stars: Future Work, (Invited) Pecs PhD Conference on Variable Star Astrophysics, September 2005.
Understanding Overcontact Binaries, AAVSO Spring meeting, 2005
Pro-Am Collaborations on Eclipsing Binary Star Problems, (Invited) AAS Meeting, June 2004.
Photometric Mass Ratios and Parameter Recovery from Binary Star Data (Invited), Zdenek Kopal’s Binary Star Legacy, Litomysl, Czech Republic, March 2004.
The Early-type Binary MP Centauri (with U. Munari, T. Zwitter, and G. Wolf), AAS Meeting, January 2004.
The 2002 Eclipses of OW Geminorum (with Kaiser, D. H., Henden, A. A., Koff, R., West, D., Dvorak, S., Pullen, C. and Stephan, C.), AAS Meeting, January 2003.
A High-Altitude Search for Vulcanoids: Progress Report (with Durda, D. D., Stern, S. A. and Weidenschilling, S. J.), AAS-DPS Meeting #34 (2002).
TU Muscae and the Early-type Overcontact Binaries, IAU Colloquium 187, Exotic Stars as Challenges to Evolution, Miami, March 2002.
Photometric Monitoring of Triton at Sommers-Bausch Observatory in 2000 (with Young, L. A., Bullock, M. A., Colwell, W. B., Durda, D. D., Gleason, K., Parker, J. W., Stern, S. A. and Young, E. F.), 32nd Annual Lunar and Planetary Science Conference, March, 2001.
Simulation and Modeling of Transit Eclipses by Planets, (with E.F. Milone, M.D. Williams, C.R. Stagg, M.L. McClure, B. Desnoyers Winmill, T. Brown, D. Charbonneau, R.L. Gililand, J. Kallrath, J., Marcy, G. W. and W. van Hamme), Planetary Systems in the Universe, IAU. Symp. 202. Manchester, England, August 2000.
A New Damped Least Squares Version of a Wilson-Devinney-Based Program for Binary Star Analysis, (with J. Kallrath, E.F. Milone, and A.T. Young), AAS Meeting, Summer 1997.
Further Evolution of Light Curve Modeling, (with E.F. Milone, J. McVean, J. Kallrath, W. Van Hamme, and A.T. Young), AAS Meeting, Winter 1996.
Is the Eclipsing Binary SAO 76494 a Hyad or Escaped Hyad?, (with E.F. Milone, F.M. Babott, D. Kaiser, and J. Gunn), International Symposium on the Origins, Evolution, and Destinies of Binary Stars in Clusters, Calgary, AB, June, 1995.
A Search for Variables in Clusters Using the Automated Photographic Patrol, (with D. Kaiser), International Symposium on the Origins, Evolution, and Destinies of Binary Stars in Clusters, Calgary, AB, June 1995.
Modeling of the Contact Binary H235 in the Open Cluster NGC 752, (with E.F. Milone), International Symposium on the Origins, Evolution, and Destinies of Binary Stars in Clusters, Calgary, AB, June 1995.
Analysis of the Contact System V7 in the Old Open Cluster NGC 6791, (with E.F. Milone), International Symposium on the Origins, Evolution, and Destinies of Binary Stars in Clusters, Calgary, AB, June 1995.
Modeling and Impersonal Fitting of Asteroid Light Curves, (with D. Durda), AAS-DPS meeting, Washington, DC, November 1994.
Large Superluminous Areas on W UMa Systems II. YZ Phoenicis, (with R.G. Samec), AAS Meeting, Washington, DC, January, 1994.
Vela X-1 vis a vis HD 77581 - Self-consistent Parameter Adjustment, (with R.E. Wilson), Maryland Conference on the Evolution of X-ray Binaries, College Park, October 1993.
A User Interface for the Wilson-Devinney Light Curve Program, AAS Meeting, Phoenix, January, 1993.
Simultaneous Solutions for X-ray Binary Parameters, (with R.E. Wilson), AAS Meeting, Phoenix, January, 1993.
Mass Transfer in Algols - Computation of Observables, (Invited) IAU General Assembly, Buenos Aires, July 1991.
Introduction to Eclipsing Binary Data Analysis with PHOEBE, Soc. Astron. Sci. Meeting, May 2011
Eclipsing Binary Star Data Analysis, IAPPP West Wing Meeting, May 2003 (workshop leader)
Eclipsing Binary Star Data Analysis, AAVSO Spring Meeting, May 2001 (workshop leader)
Information Potential of Algol Disks, Sixth Florida Workshop on Non-linear Astronomy, September, 1991.
Binary Stars: A Pictorial Atlas, Dirk Terrell, J.D. Mukherjee, and R.E. Wilson, Krieger Publishing, Malabar, FL, 1992 (ISBN 0-89464-041-0)
Analysis of the rotation period of asteroids (1865) Cerberus, (2100) Ra-Shalom, and (3103) Eger - search for the YORP effect, Durech, J., et al., Astronomy and Astrophysics, 547, A10 (2012)
Data Release 3 of the AAVSO All-Sky Photometric Survey (APASS), Henden, A.A., Levine, S.E., Terrell, D., and Smith, T.C., Journal of the American Association of Variable Star Observers, 40, 430 (2012)
A BVRCIC Survey of W Ursae Majoris Binaries, Terrell, Dirk, Gross, John and Cooney, W., Astronomical Journal, 143, 99 (2012)
Binary asteroid population. 2. Anisotropic distribution of orbit poles of small, inner main-belt binaries, Pravec, P., et al, Icarus, 218, 125 (2012)
The Absolute Dimensions of CU Sge, Nelson, Robert H., Terrell, Dirk and Gross, John, IBVS #5970 (2011)
Constraints of a pulsation frequency on stellar parameters in the eclipsing spectroscopic binary system V577 Oph, Creevey, O.L., et al, Astronomische Nachrichten, 331, 952 (2010)
Flux Calibrations from Nearby Eclipsing Binaries and Single Stars, Wilson, R.E., Van Hamme, W. and Terrell, Dirk, Astrophysical Journal, 723, 1469 (2010)
AAVSO Photometric All-Sky Survey Implementation at the Dark Ridge Observatory, Smith, Thomas C., Henden, Arne and Terrell, Dirk, The Society for Astronomical Sciences 29th Annual Symposium on Telescope Science, 29, 45
Photometry of Z Tauri to Minimum, Journal of the AAVSO, 37, 101 (2009)
BVRI Photometry of the CX Cephei System (WR 151), Hutton, Kate, Henden, Arne and Terrell, Dirk, Publications of the Astronomical Society of the Pacific, 121, 708 (2009)
Spin rate distribution of small asteroids, Pravec, P. et al, Icarus, 197, 497 (2008)
Observational Studies of Early-type Eclipsing Binaries: VV Orionis, Terrell, Dirk, Munari, U. and Siviero, A., Monthly Notices of the Royal Astronomical Society, 374, 530 (2007)
A CCD Photometric Study of the W UMa Binary SW Lacertae, Alton, K.B. and Terrell, D., Journal of the AAVSO, 34, 188 (2006)
The Absolute Dimensions of the Overcontact Binary FI Bootis, Terrell, Dirk, Osborn, Wayne; Smolinksi, Jason and Gross, John, Astronomical Journal, 132, 1153 (2006)
Photometry of the Algol-type Binary Z Draconis, Terrell, Dirk, IBVS #5742 (2006)
New Constraints on Additional Satellites of the Pluto System, A. J. Steffl, M. J. Mutchler, H. A. Weaver, S. A. Stern, D. D. Durda, D. Terrell, W. J. Merline, L. A. Young, E. F. Young, M. W. Buie, and J. R. Spencer, Astronomical Journal, 132, 614 (2006)
A Two-Color CCD Photometric Study of the W UMa Binary SW Lacertae, Alton, Kevin B. and Terrell, Dirk, Journal of the American Association of Variable Star Observers, in press (2006)
The Classical Algol XZ UMa - Observations and Analysis, Nelson, R.H, Terrell, D. and Gross, J., IBVS #5715 (2006)
Eclipsing Binary Stars: Future Work, Terrell, D., in Astrophysics of Variable Stars, Astronomical Society of the Pacific Conference Series, 349, 91 (2006)
On the origin of the unusual orbit of Comet 2P/Encke, Levison, Harold F.; Terrell, Dirk; Wiegert, Paul A.; Dones, Luke; Duncan, Martin J., Icarus, 182, 161 (2006)
Changes in the Light Curves of Short-Period W Ursae Majoris Binaries: Program Summary, Genet, R. M.; Smith, T. C.; Terrell, D.; Doyle, L., Journal of the American Association of Variable Star Observers, in press (2006)
Partial Eclipses in BR Cygni, Terrell, Dirk, Gross, John and Cooney, W.R., Jr. IBVS #5646 (2005)
Photometric Variability in the Strongly Interacting Binary DK Canum Venaticorum, Terrell, Dirk; Koff, R. A.; Henden, A. A.; Hager, T.; Kaiser, D. H.; Howell, J. A.; Gross, John; Cooney, Walter R., Jr.; Munari, U.; Siviero, A., IBVS #5642 (2005)
Observational studies of early-type binary stars: MP Centauri, Terrell, Dirk; Munari, Ulisse; Zwitter, Tomaž; Wolf, George, Monthly Notices of the Royal Astronomical Society, 360, 583 (2005)
GW Cancri: A W-type W UMa System with Complete Eclipses, Terrell, Dirk, Gross, John and Cooney, W.R., Jr. IBVS #5625 (2005)
Photometric Mass Ratios of Eclipsing Binary Stars, Terrell, Dirk and Wilson, R.E., Astrophysics and Space Science, 296, 221 (2005)
CX CMa An Early-Type Detached Eclipsing Binary, Nelson, R.H. and Terrell, D., Information Bulletin on Variable Stars #5545 (2004).
New Light Curves and Orbital Solution for AM Leonis, Hiller, M.E., Osborn, W. and Terrell, D., Publications of the Astronomical Society of the Pacific, 116, 337, 2004.
Studies of Early-type Binaries: TU Mus and MP Cen , Terrell, D., Munari, U., Zwitter, T., Nelson, R. H. and Wolf, G. W., ASP Conf. Series, 318, 215 (2004)
Observational Studies of Early-type Overcontact Binaries: TU Muscae, Terrell, D., Munari, U., Zwitter, T. and Nelson, R. H., Astronomical Journal 126, 2988 (2003).
The Double Supergiant Binary OW Geminorum, Terrell, Dirk, Kaiser, D. H., Henden, A. A., Koff, R., West, D., Dvorak, S., Pullen, A. Charles, Stephan, Christopher P., Astronomical Journal 126, 902 (2003).
Observations and Modeling of the Eclipsing Binary GSC 3515:0865, Billings, G. and Terrell, D., Journal of the American Association of Variable Star Observers 31, 70 (2003).
Photometry of OW Gem, Kaiser, D.H., Henden, A. A., Dvorak, S., Garcia-Melendo, E., Gomez-Forrellad, J. M., Howell, J. A., Koff, R. A., Kuebler, P., Lubcke, G. C., Martin, B., Nelson, R. H., Pullen, A. C., Terrell, D., West, D., Williams, D. B., Wolf, G. W., Zissell, R. E., Information Bulletin on Variable Stars #5347 (2002).
Light Curve Variability in XZ Canis Minoris, Terrell, D. and Henden, A. A., Information Bulletin on Variable Stars #5310 (2002).
GSC 00279-00321: A New W UMa Eclipsing Binary, Koppelman, M.D. and Terrell, D., Information Bulletin on Variable Stars #5299 (2002).
GSC 4686 2315: A Short-period Algol, Koff, R.A.; Henden, A.A.; Kaiser, D.H.; Lubcke, G.C.; Terrell, D., Information Bulletin on Variable Stars #5257 (2002).
GSC 0983.1044: a Short-Period RS CVn Binary, Kaiser, D. H.; Pullen, A. C.; Henden, A. A.; Baldwin, M. E.; Guilbault, P. R.; Hager, T.; Terrell, D., Information Bulletin on Variable Stars #5231 (2002).
Light Elements and Light Curve of the Eclipsing Binary GSC 2605.0545, Howell, J. A.; Henden, A. A.; Baldwin, M. E.; Guilbault, P. R.; Hager, T.; West, D.; Kuebler, P.; Terrell, D., Information Bulletin on Variable Stars #5229 (2002).
Eclipsing Binary Stars: Past, Present and Future, Terrell, Dirk, Journal of the American Association of Variable Star Observers, 30, 1 (2002).
The Short-Period Eclipsing Binary GSC 3123.1618, Billings, G. W., Kaiser, D. H., Terrell, D., and Henden, A. A., Information Bulletin on Variable Stars #5029 (2001).
Light Elements and a Preliminary Solution for the Light Curve of the Eclipsing Binary GSC 1534.0753, Lubcke, G.C.; Baldwin, M.E.; Billings, G.W.; Guilbault, P.R.; Hager, T.; Henden, A.A.; Terrell, D., Information Bulletin on Variable Stars #4998 (2000).
Recent Improvements to a Version of the Wilson-Devinney Program, Kallrath, Josef, Milone, E. F., Terrell, Dirk, and Young, Andrew T., Astrophysical Journal, 508, 308 (1998).
X-ray binary unified analysis: pulse/RV application to Vela X1: GP Velorum, Wilson, R.E. and Terrell, Dirk, Monthly Notices of the Royal Astronomical Society, 296, 33 (1998).
Preliminary Analysis of the Contact System V7 in NGC 6791, Milone, E.F. and Terrell, Dirk, in The Origins, Evolution, and Destinies of Binary Stars in Clusters, Astronomical Society of the Pacific Conference Series,Volume 90 (1996).
Analysis of the Contact System H235 in the Open Cluster NGC 752, Milone, E.F. and Terrell, D., in The Origins, Evolution, and Destinies of Binary Stars in Clusters, Astronomical Society of the Pacific Conference Series,Volume 90 (1996).
Is the Eclipsing Binary SAO 76494 a Hyad or Escaped Hyad?, Terrell, Dirk and Milone, E.F. and Babbott, F.M. in The Origins, Evolution, and Destinies of Binary Stars in Clusters, Astronomical Society of the Pacific Conference Series,Volume 90 (1996).
A Search for Variables in Clusters, Kaiser, Daniel H., and Terrell, Dirk, in The Origins, Evolution, and Destinies of Binary Stars in Clusters, Astronomical Society of the Pacific Conference Series,Volume 90 (1996).
Observations and Analysis of the Field Contact Binary V728 Herculis, R.H. Nelson, E.F. Milone, J. VanLeeuwen, Dirk Terrell, and J.E. Penfold, Astronomical Journal, 110, 2400, 1995.
YZ Phoenicis: Photometric Study of a W UMa Binary near the Short Period Limit, Ronald G. Samec and Dirk Terrell, Publications of the Astronomical Society of the Pacific, 107, 427, 1995.
V1061 Tauri: Analysis of a Newly Discovered Eclipsing Binary, Dirk Terrell, Dan Kaiser, and David Williams, Publications of the Astronomical Society of the Pacific, 107, 653, 1995.
Period Correction for the New Eclipsing Binary DHK41, Information Bulletin on Variable Stars #4168 (1995).
A Photometric Campaign on OW Geminorum, Kaiser, D.H., Williams, D.B. and Terrell, D., Information Bulletin on Variable Stars #4102 (1995).
New Light Curves and Analysis of the Short Period Algol XZ Canis Minoris, Dirk Terrell, J.B. Gunn, and Daniel H. Kaiser, Publications of the Astronomical Society of the Pacific, 106, 149 (1994).
Photometric Investigation of a Very Short Period W UMa-type Binary: Does CE Leonis Have a Large Superluminous Area?, Ronald G. Samec, Wen Su, Dirk Terrell, and Douglas P. Hube, Astronomical Journal, 106, 318 (1993).
Sub-Synchronous Rotation and Tidal Lag in HD 77581/Vela X-1, R.E. Wilson and Dirk Terrell, in The Evolution of X-ray Binaries, Am. Inst. of Physics Conference Proceedings #308 (1993).
Spectral Energy Distributions of Circumstellar Gas in Algols, Dirk Terrell and R.E. Wilson, in Light Curve Modeling of Eclipsing Binary Stars, ed. E.F. Milone, pp. 27-35, Springer-Verlag, New York, 1993.
Complete BVRI Light Curves of the Very Short Period W UMa Variable YZ Phoenicis, Marcelo B. Arruda, Ronald G. Samec and Dirk Terrell, Information Bulletin on Variable Stars #3884 (1993).
Learning About Algol Disks - Learning From Algol Disks, R.E. Wilson and Dirk Terrell, in Astrophysical Disks, eds. S.F. Dermott, J.H. Hunter, Jr. and R.E. Wilson, New York Academy of Sciences, New York, 1992.
A Re-discussion of Four Early-Type Eclipsing Binaries, Dirk Terrell, Monthly Notices of the Royal Astronomical Society, 250, 209 (1991).
The Photometric Elements of XZ Canis Minoris, Dirk Terrell and R.E. Wilson, Publications of the Astronomical Society of the Pacific, 102, 646 (1990).
Many IAU Circular and Central Bureau Electronic Telegrams on our photometric discoveries of binary asteroids can be found here.
S/2003 (283) 1, Merline, W. J., Dumas, C., Siegler, N., Close, L. M., Chapman, C. R., Tamblyn, P. M., Terrell, D., Conrad, A., Menard, F. and Duvert, G., IAU Circular #8165 (2003).
CCD UBVRI Photometry of the Pre-contact Eclipsing Binary V361 Lyrae, Samec, R.G., Terrell, D., Gray, J.D., and Carrigan, B.J., Bull. Am. Astron. Soc., vol 186, #47.06, 1995.
Early Results from the APP - An Eclipsing Binary in Hercules and a Potential Eclipsing Hyad, Dirk Terrell and Daniel H. Kaiser, Bull. Am. Astron. Soc., 185, 85.09 (1994).
A Prime Opportunity to Observe a Close Passage of the Earth-Crossing Asteroid 4179 Toutatis, Daniel D. Durda and Dirk Terrell, IAPPP Communications, Summer 1992.
Photometric Observations and Methods, and Results of Light Curve Analysis, R.E. Wilson, J.D. Mukherjee, and Dirk Terrell, IAU Triennial Report (1991).
Problems of Interacting Binary Stars Requiring Observations from Space, R.E. Wilson, J.C. Liou, J.D. Mukherjee, and Dirk Terrell, Proceedings of the 11th Annual Smithsonian/Fairborn/IAPPP Symposium on Automated Photometric Telescopes, Fairborn Press, Mesa, AZ (1990).
Azimuthal Variation of Stellar Magnitudes at the South Pole, Kwan-Yu Chen and Dirk Terrell, Antarctic Journal of the US, 1990 Review.
Solve Binary Stars Yourself, Dirk Terrell, Sky and Telescope, August 2012.
Demon Variables, Dirk Terrell, Astronomy, October 1992.
Monthly Notices of the Royal Astronomical Society
Astronomy and Astrophysics
Astronomical Journal
Journal of the American Association of Variable Star Observers
Publications of the Astronomical Society of Australia
Revista Mexicana de Astronomía y Astrofísica
Astrophysics and Space Science
AST 1022L, astronomy laboratory course (U. of Florida)
AST 1022, Discovering the Universe, lecture course covering all areas of modern astronomy (U. of Florida)
ISC 1001/PSC 1341, Introduction to Physical Science, lecture course covering topics in physics, chemistry, geology, and astronomy (Santa Fe CC)
PSC 2121, Fundamentals of Physical Science with Laboratory, lecture course covering topics in physics, chemsitry, geology, and astronomy with an integrated lab for experiments in those topics. (Santa Fe CC)
PHY 207, Non-calculus physics covering waves and periodic motion, electricity and magnetism, and optics. (U. of Calgary)
Nitrogen Absorption Program (NAP) - A computer program for scuba divers that enables them to simulate dives on a PC compatible and follow the absorption of nitrogen by body tissues and hence the risk of getting decompression sickness (i.e., the bends).
PC Interface for WD - A user-friendly "front-end" for the Wilson-Devinney light curve program that runs on PC compatibles. The program enables users to compute light and velocity curves for binary stars using the WD code without having to be concerned with the format of the WD input file.
VHLIMB - A program that displays limb darkening coefficients for stars based on the Van Hamme limb darkening tables. Written in Java so it will run on any machine that has a Java runtime.
FLIST - A Windows program that enables the user to search for and display information on close binaries from The Finding List for Observers of Interacting Binary Stars.
HTML Wizard - An OS/2 program that makes the preparation of World Wide Web documents much simpler.
My hobbies include cave diving, martial arts, computer programming, riding my motorcycle, and increasing public understanding and awareness of scientific issues. I have extensive experience with the DOS, Windows, OS/2 and Unix operating systems as well as the BASIC, FORTRAN, C/C++, REXX, Java, and Pascal programming languages. I have also done a fair amount of SQL database work.