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L., “Estimation and representa- in Stellar Cycles”, 2019ApJ...886..132G ADS tion of long-term (>40 year) trends of Northern-Hemisphere-gridded surface Soon, W., Velasco Herrera, V. M., Cionco, R. G., et al., “Covariations temperature: A note of caution”, 2004GeoRL..31.3209S ADS of chromospheric and photometric variability of the young Sun analogue Fekel, F. C., Henry, G. W., Baliunas, S. L., & Donahue, R. A., “Variability in a HD 30495: evidence for and interpretation of mid-term periodicities”, Large Sample of Sun-Like Stars”, 2004IAUS..219..269F ADS 2019MNRAS.483.2748S ADS Radick, R. R., Lockwood, G. W., Henry, G. W., & Baliunas, S. L., “The Vari- Egeland, R., Soon, W., Baliunas, S., Hall, J. C., & Henry, G. W., “Evolution of ability of Sunlike Stars on Decadal Timescales”, 2004IAUS..219..264R Long Term Variability in Solar Analogs”, 2017IAUS..328..329E ADS ADS Egeland, R., Soon, W., Baliunas, S., et al., “VizieR Online Data Baliunas, S., “View from the mountaintop”, 2003Ast....31i..60B ADS Catalog: Calibrated solar S-index time series (Egeland+, 2017)”, Hempelmann, A., Schmitt, J. H. M. M., Baliunas, S. L., & Donahue, 2017yCat..18350025E ADS R. A., “Evidence for coronal activity cycles on 61 Cygni A and B”, Egeland, R., Soon, W., Baliunas, S., et al., “The Mount Wilson Observatory 2003A&A...406L..39H ADS S-index of the Sun”, 2017ApJ...835...25E ADS Giampapa, M. S., Hall, J. C., Radick, R. R., & Baliunas, S. L., “Chromospheric Egeland, R., Soon, W., Baliunas, S., et al., “Dynamo Sensitivity In Solar Analogs Activity in Solar-Type Stars”, 2003SPD....34.0710G ADS With 50 Years Of Ca II H & K Activity”, 2016csss.confE...6E ADS Baliunas, S., Donahue, R., Rampino, M. R., et al., “Multispectral analysis of Egeland, R., Soon, W., Baliunas, S., et al., “The Solar Dynamo Zoo”, asteroid 3 Juno taken with the 100-inch telescope at Mount Wilson Observa- 2016csss.confE..72E ADS tory”, 2003Icar..163..135B ADS Oláh, K., Kovári,˝ Z., Petrovay, K., et al., “Magnetic cycles at different ages of Lockwood, G. W., Radick, R. R., Henry, G. W., & Baliunas, S. L., “Photometric 2016A&A...590A.133O stars”, ADS and Chromospheric Variability of Sun-Like Stars”, 2003AAS...202.3213L Egeland, R., Soon, W. H., Baliunas, S. L., et al., “Dynamo Sensitivity in Solar ADS Analogs with 50 Years of Ca II H & K Activity”, 2016SPD....4720307E Lin, J., Soon, W., & Baliunas, S. L., “Theories of solar eruptions: a review”, ADS 2003NewAR..47...53L ADS Egeland, R., Soon, W. H., Baliunas, S. L., et al., “The Solar Dynamo Zoo”, Soon, W. & Baliunas, S. L., “Global warming”, 2003PrPhG..27..448S 2016SPD....47.1103E ADS ADS Baliunas, S.: 2014, Wilson, Olin Chaddock, Jr., 2351–2352 Soon, W., Baliunas, S. L., Idso, C., Idso, S., & Legates, D., “Reconstructing 2014bea..book.2351B ADS climatic and environmental changes of the past 1000 years: A reappraisal”, Simpson, E. K., Baliunas, S. L., Henry, G. W., & Watson, C. A., “Rotation 2003En&En..14..233S ADS periods of exoplanet host stars”, 2010MNRAS.408.1666S ADS Katsova, M. M., Livshits, M. A., Soon, W., Baliunas, S. L., & Sokoloff, D. D., Soon, W. & Baliunas, S. L., “Proxy climatic and environmental changes of the 2003ClRe...23...89S “Differential rotation of some HK-Project stars and the butterfly diagrams”, past 1000 years”, ADS 2010NewA...15..274K ADS Henry, G. W., Donahue, R. A., & Baliunas, S. L., “A False Planet around HD Oláh, K., Kolláth, Z., Granzer, T., et al., “Multiple and changing cycles of active 192263”, 2002ApJ...577L.111H ADS stars. II. Results”, 2009A&A...501..703O ADS Lockwood, G. W., Hall, J. C., Skiff, B. A., et al., “Gauging the Sun: Com- Baliunas, S. L., Kondo, Y., Kaifu, N., et al., “Inter-Division IX-X-XI Working parative photometric and magnetic activity measurements of sunlike stars, Group Astronomy from The Moon”, 2009IAUTA..27..356B ADS 1984-2001”, 2002AAS...200.0709L ADS Brown, K. I. T., Gray, D. F., & Baliunas, S. L., “Long-Term Spectroscopic Mon- Shao, M., Baliunas, S., Boden, A., et al., “Extrasolar Planet Inferometric Survey itoring of Arcturus”, 2008ApJ...679.1531B ADS (EPIcS)”, 2002swsi.conf....7S ADS Baliunas, S. L., Kondo, Y., Kaifu, N., et al., “Division XI / Wg: Astronomy from White, W., Dettinger, M., Soon, W., & Baliunas, S., “Sources of solar vari- the Moon”, 2007IAUTB..26..208B ADS ability responsibile for global warming of the upper ocean on decadal period Oláh, K., Strassmeier, K. G., Granzer, T., Soon, W., & Baliunas, S. L., “Chang- scales”, 2002cosp...34E1318W ADS ing stellar activity cycles”, 2007AN....328.1072O ADS Baliunas, S., “Global warming”, 2002WTGSB..41....4B ADS Lockwood, G. W., Skiff, B. A., Henry, G. W., et al., “Patterns of Photometric Baliunas, S., Macrae, A., & Patterson, T., “The scientific case against catas- and Chromospheric Variation among Sun-like Stars: A 20 Year Perspective”, trophic global warming and the Kyoto Protocol”, 2002PPEGG..30...20B 2007ApJS..171..260L ADS ADS Benedict, G. F., McArthur, B. E., Gatewood, G., et al., “The Extrasolar Planet Risbey, J., Soon, W., Baliunas, S., et al., “Reply to Comments on ”Modeling cli- ?? Eridani b Orbit and Mass”, 2006DPS....38.1009B ADS matic effects of anthropogenic CO2 emissions: Unknowns and uncertainties”, Simpson, E. K., Baliunas, S., & Henry, G., “Investigating the Rotation Periods 2002ClRe...22..187R ADS of Exoplanet Host Stars”, 2006AAS...20915201S ADS Queloz, D., Henry, G. W., Sivan, J. P., et al., “No planet for HD 166435”, Hempelmann, A., Robrade, J., Schmitt, J. H. M. M., et al., “Coronal activity 2001A&A...379..279Q ADS cycles in 61 Cygni”, 2006A&A...460..261H ADS Kondratyev, K. Y., Adamenko, V. N., Demirchian, K. S., et al.: 2001, Global Giampapa, M. S., Hall, J. C., Radick, R. R., & Baliunas, S. L., “A Survey of Climate Change: Conceptual Aspects, 2001, St. Petersburg: Russian Chromospheric Activity in the Solar-Type Stars in the Open Cluster M67”, Academy of Science and Scientific Research Centre for Ecological Safety 2006ApJ...651..444G ADS 2001rass.rept.....K ADS Benedict, G. F., McArthur, B. E., Gatewood, G., et al., “The Extrasolar Planet Soon, W., Baliunas, S., Demirchan, K. S., et al., “The impact of anthropogenic ?? Eridani b: Orbit and Mass”, 2006AJ....132.2206B ADS CO2 emissions: Unknows and uncertainties”, 2001PRGS..133....1S Baliunas, S. L., “Decadal and Interdecadal Surface Magnetic Variability of ADS Sunlike and Other Cool Stars”, 2006IAUJD...8E..65B ADS Soon, W., Baliunas, S., Demirchan, K. S., et al., “Modeling climatic ef- Baliunas, S., Frick, P., Moss, D., et al., “Anharmonic and standing fects of anthropogenic CO2 emissions: Unknows and uncerta inties”, dynamo waves: theory and observation of stellar magnetic activity”, 2001ClRe...18..259S ADS 2006MNRAS.365..181B ADS Baliunas, S. & Soon, W., “The Curious case of the carbon forest source”, Duncan, D. K., Vaughan, A. H., Wilson, O. C., et al., “VizieR Online Data 2000WCRp....6f...3B ADS Catalog: Ca II H and K Measurements Made at MWO (Duncan+ 1991)”, Murphy, N., Smith, E. J., Rogers, W., et al., “Searching for Global oscillations 2005yCat.3159....0D ADS of Jupiter”, 2000DPS....32.6516M ADS

1 Hatzes, A. P., Cochran, W. D., McArthur, B., et al., “Evidence for a Long-Period Baliunas, S. & Soon, W., “The life and times of Alfonso Nino and family”, Planet Orbiting ?? Eridani”, 2000ApJ...544L.145H ADS 1998WCRp....3s..10B ADS Baliunas, S.: 2000, Solar-Stellar Connection: Activity and Brightness Changes Baliunas, S. & Soon, W., “The Milky Way and the clouds of Earth”, of Solar-Type Stars, 2237 2000eaa..bookE2237B ADS 1998WCRp....3o..10B ADS Baliunas, S. & Soon, W., “Millennial climate”, 2000WCRp....6b...3B ADS Baliunas, S., “The Sun as a Star, by Roger J. Tayler”, 1998PhT....51d..63B Baliunas, S. & Soon, W., “100000110011 (Computer Year 2099)”, ADS 2000WCRp....5v...3B ADS Baliunas, S. & Soon, W., “Nature speaks of many things, Of missing flux and Baliunas, S. & Soon, W., “Man vs. Milky Way revisited”, butterfly wings”, 1998WCRp....3k...6B ADS 2000WCRp....5s...3B ADS Rüdiger, G., von Rekowski, B., Donahue, R. A., & Baliunas, S. L., “Differ- Giampapa, M. S., Radick, R. R., Hall, J. C., & Baliunas, S. L., “A Survey of ential Rotation and Meridional Flow for Fast-rotating Solar-Type Stars”, Activity in the Solar-Type Stars in M67”, 2000SPD....3102120G ADS 1998ApJ...494..691R ADS Soon, W., Posmentier, E., & Baliunas, S., “Climate hypersensitivity to solar Baliunas, S. L. & Soon, W. H., “An Assessment of the Sun-Climate Relation forcing?”, 2000AnGeo..18..583S ADS on Time Scales of Decades to Centuries: The Possibility of Total Irradiance Baliunas, S. & Soon, W., “The Trouble with Ozone”, 2000WCRp....5o...3B Variations”, 1998sers.conf..401B ADS ADS Slesnick, C., Baliunas, S. L., Donahue, R. A., & Soon, W. H.: 1998, Activity in Henry, G. W., Baliunas, S. L., Donahue, R. A., Fekel, F. C., & Soon, W., “Photo- old dwarf and subgiant stars, in Proceedings of the Center for Astrophysics metric and Ca II H and K Spectroscopic Variations in Nearby Sun-like Stars REU Research Forum 1998reu..rept.....S ADS with Planets. III.”, 2000ApJ...531..415H ADS , “Solar activity and temperature data: A wavelet analysis”, Baliunas, S. & Soon, W.: 2000a, The sun also warms, The State of the Climate 1998geoc.conf.....Z ADS 2000 2000stcl.rept...21B ADS Robinson, A., Baliunas, S. L., Soon, W., & Robinson, Z. W., “Environmental Baliunas, S. & Soon, W., “The rains of Ranchipur”, 2000WCRp....5j...3B effects of increased atmospheric carbon dioxide”, 1998MeSen...3..171R ADS ADS Soon, W., Baliunas, S., Posmentier, E. S., & Okeke, P., “Variations of solar Baliunas, S. L., Donahue, R. A., Soon, W., & Henry, G. W., “Activity Cycles coronal hole area and terrestrial lower tropospheric air temperature from in Lower Main Sequence and POST Main Sequence Stars: The HK Project”, 1979 to mid-1998: astronomical forcings of change in earth’s climate?”, 1998ASPC..154..153B ADS 2000NewA....4..563S ADS Shelton, J. C., Schneider, T., & Baliunas, S. L., “Science with the ADOPT system Wamsteker, W., Baliunas, S., Brosch, N., et al., “Division XI: Space and on Mt. Wilson [3126-80]”, 1997SPIE.3126..321S ADS High Energy Astrophysics(Astrophysique Spatiale et Des Hautes Energies)”, Piters, A. J. M., Schrijver, C. J., Schmitt, J. H. M. M., et al., “Coronal and 2000IAUTA..24..357W ADS chromospheric emission from cool stars in near-simultaneous ROSAT all-sky Foukal, P., Solanki, S., Mariska, J., et al., “Commission 12: Solar Radiation survey and Mount Wilson data.”, 1997A&A...325.1115P ADS and Structure (Radiation et Structure Solaires)”, 2000IAUTA..24...73F Frick, P., Baliunas, S. L., Galyagin, D., Sokoloff, D., & Soon, W., “Wavelet Anal- ADS ysis of Stellar Chromospheric Activity Variations”, 1997ApJ...483..426F Soon, W., Baliunas, S., Idso, S. B., Kondratyev, K. Y., & Posmentier, E. S., ADS “Calculating the Climatic Impacts of Increased CO_2: the Issue of Model Piters, A. J. M., Schrijver, C. J., Schmitt, J. H. M. M., et al., “VizieR Online Data Validation”, 2000ESASP.463..243S ADS Catalog: Near-simultaneous ROSAT and Mt Wilson data (Piters+ 1997)”, Baliunas, S. & Soon, W., “Generations of Hurricanes”, 1997yCat..33251115P ADS 1999WCRp....5f...3B ADS Wicklund, B. M., Donahue, R. A., Dobson, A. K., & Baliunas, S. L.: Baliunas, S. & Soon, W., “Almighty Chance and the Dance of El Nino”, 1997, A Combined MG II/CA II Survey of Stellar Magnetic Activity in 1999WCRp....5d...3B ADS the Solar Neighborhood, Smithsonian Astrophysical Observatory Report Baliunas, S. & Soon, W., “Pioneers in the Greenhouse Effect”, 1997sao..rept.....W ADS 1999WCRp....4s....B ADS Persistent Sub- Baliunas, S. & Soon, W., “Pioneers in the Greenhouse Effect”, Maulik, D., Donahue, R. A., & Baliunas, S. L.: 1997, Yearly Chromospheric Variations in Lower Main-Sequence Stars: Tau 1999WCRp....4S...6B ADS Booe and alpha COM Giampapa, M. S., Radick, R. R., & Baliunas, S. L., “The Suns of M67”, , Smithsonian Astrophysical Observatory Report 1997sao..rept.....M 1999AAS...194.9212G ADS ADS Baliunas, S. & Soon, W., “The Mysteries of Carbon Dioxide”, Donahue, R. A., Dobson, A. K., & Baliunas, S. L., “Stellar Active Region Evo- 1999WCRp....4R...6B ADS lution - II. Identification and Evolution of Variance Morphologies in CA II 1997SoPh..171..211D Giampapa, M. S., Radick, R. R., Hall, J. C., & Baliunas, S. L.: 1999, Cy- H+K Time Series”, ADS cles and Long-Term Variability in Solar-Type Stars, NOAO Proposal Donahue, R. A., Dobson, A. K., & Baliunas, S. L., “Stellar Active Region Evo- 1999noao.prop..226G ADS lution - I. Estimated Lifetimes of Chromospheric Active Regions and Active Baliunas, S. & Soon, W., “Aerosols are Cool”, 1999WCRp....4k...6B ADS Region Complexes”, 1997SoPh..171..191D ADS Baliunas, S. & Soon, W., “Aerosols are Cool”, 1999WCRp....4Q...6B ADS Baliunas, S., Frick, P., Sokoloff, D., & Soon, W., “Time scales and trends Baliunas, S.: 1999a, Extremes of Ecofeminism, Fraser Forum in the central England temperature data (1659-1990): A wavelet analysis”, 1999frfo.rept.....B ADS 1997GeoRL..24.1351B ADS Baliunas, S.: 1999b, Extreme Ecomfeminism: The view from Science, Ex Femina Gray, D. F. & Baliunas, S. L., “The Rotation of the G0 Dwarf β Comae”, 1999exfe.rept....7B ADS 1997ApJ...475..303G ADS Baliunas, S. & Soon, W., “Silvery-blue Cloudlets of the Night”, Baliunas, S. L., Henry, G. W., Donahue, R. A., Fekel, F. C., & Soon, W. H., 1 1999WCRp....4....5B ADS “Properties of Sun-like Stars with Planets: ρ Cancri, τ Bootis, and psilon Posmentier, E. S., Soon, W. H., & Baliunas, S. L., “Natural variability in an- Andromedae”, 1997ApJ...474L.119B ADS ocean-atmosphere climate model”, 1999JFMal..19..157P ADS Henry, G. W., Baliunas, S. L., Donahue, R. A., Soon, W. H., & Saar, S. H., Balling, Robert C., J., Periconi, D. A., Cerveny, R. S., & Baliunas, S. L., “Properties of Sun-like Stars with Planets: 51 Pegasi, 47 Ursae Majoris, 70 “Large asymmetrical temperature trends at Mount Wilson, California”, Virginis, and HD 114762”, 1997ApJ...474..503H ADS 1999GeoRL..26.2753B ADS Jastrow, R. & Baliunas, S. L., “Mount Wilson Reborn: A New ERA Dawns for Soon, W., Baliunas, S., Robinson, A., & Robinson, Z. W., “Environmental effects ’America’s Observatory’.”, 1997ASSL..210...10J ADS of increased atmospheric carbon dioxide”, 1999ClRe...13..149S ADS Soon, W. H., Posmentier, E. S., & Baliunas, S. L., “Inference of Solar Irradiance Soon, W., Frick, P., & Baliunas, S., “Lifetime of Surface Features and Stellar Variability from Terrestrial Temperature Changes, 1880–1993: an Astrophys- Rotation: A Wavelet Time-Frequency Approach”, 1999ApJ...510L.135S ical Application of the Sun-Climate Connection”, 1996ApJ...472..891S ADS ADS Baliunas, S. & Soon, W., “Cold World: Model Analysis shows icy trend”, Hall, J. C. & Baliunas, S. L., “Multiwavelength Activity Profiles of Cool Stars”, 1998WCRp....4g...6B ADS 1996AAS...189.8108H ADS Slesnick, C. L., Donahue, R. A., & Baliunas, S. L., “Activity in Old Dwarf and Saar, S. H., Deluca, E. E., Baliunas, S. L., & Donahue, R. A., “Possible Detec- Subgiant Stars”, 1998AAS...193.9903S ADS tion of a Residual Non-Cyclic Distributed Dynamo in “Maunder Minimum” Baliunas, S. & Soon, W., “The Miner’s Canary is Still Singing”, Stars”, 1996AAS...189.8104S ADS 1998WCRp....4c...6B ADS Baliunas, S.: 1996, M.I.T. Space Grant Program Photoelectric Observations of Radick, R. R., Lockwood, G. W., Skiff, B. A., & Baliunas, S. L., “Patterns of Variable Stars for High School Students, Smithsonian Astrophysical Obser- Variation among Sun-like Stars”, 1998ApJS..118..239R ADS vatory Report 1996sao..reptR....B ADS Baliunas, S. & Soon, W., “The summer of our discontent”, Nesme-Ribes, E., Baliunas, S. L., & Sokoloff, D., “The Stellar Dynamo”, 1998WCRp....3c..10B ADS 1996SciAm.275b..46N ADS

2 Donahue, R. A., Saar, S. H., & Baliunas, S. L., “A Relationship between Mean Shelton, J. C., Baliunas, S. L., Russell, J., & Donahue, R. A., “Adaptive Optics Rotation Period in Lower Main-Sequence Stars and Its Observed Range”, at Mount Wilson Observatory”, 1994ESOC...48...53S ADS 1996ApJ...466..384D ADS Saar, S. H., Brandenburg, A., Donahue, R. A., & Baliunas, S. L., “The Evolution Gray, D. F., Baliunas, S. L., Lockwood, G. W., & Skiff, B. A., “Magnetic, of Stellar Dynamo Variations.”, 1994ASPC...64..468S ADS Photometric, Temperature, and Granulation Variations of XI Bootis A 1984– Donahue, R. A. & Baliunas, S. L., “Evidence of Surface Differential Rotation 1993”, 1996ApJ...465..945G ADS (SDR) in Lower Main-Sequence Stars.”, 1994ASPC...64..396D ADS Baliunas, S. L., Nesme-Ribes, E., Sokoloff, D., & Soon, W. H., “A Dynamo Shelton, J. C. & Baliunas, S., “Second Generation Adaptive Optics: Plans for Interpretation of Stellar Activity Cycles”, 1996ApJ...460..848B ADS the Mount Wilson 100-Inch Telescope.”, 1994ASPC...55...68S ADS Baliunas, S. L., “The writing on the wall.”, 1996Mercu..25a..18B ADS Baliunas, S. L., Shelton, J. C., Russell, J., & Donahue, R. A., “Adaptive Op- Baliunas, S., Sokoloff, D., & Soon, W., “Magnetic Field and Rotation in Lower tics at Mount Wilson Observatory: Results from the 60-inch Telescope.”, Main-Sequence Stars: an Empirical Time-dependent Magnetic Bode’s Rela- 1994ASPC...55...56B ADS tion?”, 1996ApJ...457L..99B ADS Soon, W. H., Zhang, Q., Baliunas, S. L., & Kurucz, R. L., “The Mount Wilson Baliunas, S. L., Nesme-Ribes, E., Sokoloff, D., & Soon, W., “Interpretation of Observatory Metallicity Index, C RV: Comparison with Other Photometric stellar Ca II activity cycles.”, 1996sube.conf...57B ADS Systems”, 1993ApJ...416..787S ADS Nesme-Ribes, E., Baliunas, S. L., & Sokoloff, D., “The stellar dynamo.”, Soon, W. H., Baliunas, S. L., & Zhang, Q., “An Interpretation of Cycle Periods 1996SciAm.275b..30N ADS of Stellar Chromospheric Activity”, 1993ApJ...414L..33S ADS Baliunas, S. & Soon, W., “The Sun-Climate Connection”, Shelton, J. C. & Baliunas, S. L., “Results of adaptive optics at Mt. Wilson Ob- 1996S&T....92...38B ADS seratory”, 1993SPIE.1920..371S ADS Giampapa, M. S., Baliunas, S. L., & Radick, R. R., “The chromospheric activity Taylor, L. L., Smith, M. A., Teays, T. J., Guinan, E. F., & Baliunas, of the many “suns” in M67.”, 1996BAAS...28.1197G ADS S. L., “Correlated optical/UV variations of alpha HER and alpha Sco.”, Gray, D. F., Baliunas, S. L., Lockwood, G. W., & Skiff, B. A., “Variations of beta 1993BAAS...25.1242T ADS Comae through a Magnetic Minimum”, 1996ApJ...456..365G ADS Taylor, L. L., Smith, M. A., Teays, T. J., Guinan, E. F., & Baliunas, S. L., “Corre- Bradstreet, D. H., Baliunas, S. L., & Guinan, E. F., “Physical Prop- lated Optical/UV Variations of α Her and α Sco”, 1993AAS...182.4624T erties of the Contact Binaries of the Old Open Cluster NGC 188”, ADS 1996ASPC...90..135B ADS Jastrow, R. & Baliunas, S., “Mount Wilson: America’s Observatory”, Henry, T. J., Soderblom, D. R., Donahue, R. A., & Baliunas, S. L., “A Survey 1993S&T....85...18J ADS of Ca II H and K Chromospheric Emission in Southern Solar-Type Stars”, Piters, A. J. M., Schmitt, J. H. M. M., Schrijver, C. J., et al., “X-ray/Optical 1996AJ....111..439H ADS Survey of Late-Type Stars”, 1993ASSL..183..377P ADS Wicklund, B. M., Donahue, B., & Baliunas, S., “Low-Resolution Rao, L. M., Baliunas, S. L., Robinson, C. R., et al., “CAII H and K Variations of IUE Observations of Chromospheric MG II H and K Emissions”, a Sample of Hybrid Stars - do Hybrids Pulsate”, 1993ASPC...45..300R 1995AAS...18710301W ADS ADS Baliunas, S. & Soon, W., “Are Variations in the Length of the Ac- Donahue, R. A., Rao, L. M., Baliunas, S. L., & Dupree, A. K., “Longterm tivity Cycle Related to Changes in Brightness in Solar-Type Stars?”, Photometric Monitoring of the Yellow Supergiant 89-HERCULIS”, 1993ASPC...45..285D 1995ApJ...450..896B ADS ADS Shelton, J. C., Schneider, T., McKenna, D., & Baliunas, S. L., “First tests of the Lockwood, G. W., Skiff, B. A., Baliunas, S. L., & Radick, R. R., “Long- Cassegrain adaptive optics system of the Mount Wilson 100-in telescope”, term solar brightness changes estimated from a survey of Sun-like stars”, 1992Natur.360..653L 1995SPIE.2534...72S ADS ADS Gray, D. F., Baliunas, S. L., Lockwood, G. W., & Skiff, B. A., “Activity cycles Choi, H.-J., Soon, W., Donahue, R. A., Baliunas, S. L., & Henry, G. W., “A Study in dwarfs: σ Draconis.”, 1992JRASC..86..277G ADS of Variability in a Sample of G and K Giants”, 1995PASP..107..744C Gray, D. F., Baliunas, S. L., Lockwood, G. W., & Skiff, B. A., “The Activity ADS Cycle of sigma Draconis”, 1992ApJ...400..681G ADS Cristian, V. C., Donahue, R. 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