{"month":"01","abstract":[{"lang":"eng","text":"The Sloan Digital Sky Survey (SDSS) is an imaging and spectroscopic survey that will eventually cover approximately one-quarter of the celestial sphere and collect spectra of ≈106 galaxies, 100,000 quasars, 30,000 stars, and 30,000 serendipity targets. In 2001 June, the SDSS released to the general astronomical community its early data release, roughly 462 deg2 of imaging data including almost 14 million detected objects and 54,008 follow-up spectra. The imaging data were collected in drift-scan mode in five bandpasses (u, g, r, i, and z); our 95% completeness limits for stars are 22.0, 22.2, 22.2, 21.3, and 20.5, respectively. The photometric calibration is reproducible to 5%, 3%, 3%, 3%, and 5%, respectively. The spectra are flux- and wavelength-calibrated, with 4096 pixels from 3800 to 9200 Å at R ≈ 1800. We present the means by which these data are distributed to the astronomical community, descriptions of the hardware used to obtain the data, the software used for processing the data, the measured quantities for each observed object, and an overview of the properties of this data set."}],"page":"485-548","issue":"1","date_updated":"2024-11-12T09:51:31Z","publication_status":"published","day":"01","title":"Sloan digital sky survey: Early data release","article_processing_charge":"No","related_material":{"link":[{"relation":"erratum","url":"https://doi.org/10.1086/340314"}]},"intvolume":"       123","publication_identifier":{"issn":["0004-6256"],"eissn":["1538-3881"]},"date_created":"2024-09-06T10:32:06Z","author":[{"full_name":"Stoughton, Chris","first_name":"Chris","last_name":"Stoughton"},{"first_name":"Robert H.","last_name":"Lupton","full_name":"Lupton, Robert H."},{"first_name":"Mariangela","last_name":"Bernardi","full_name":"Bernardi, Mariangela"},{"full_name":"Blanton, Michael R.","last_name":"Blanton","first_name":"Michael R."},{"first_name":"Scott","last_name":"Burles","full_name":"Burles, Scott"},{"full_name":"Castander, Francisco J.","last_name":"Castander","first_name":"Francisco J."},{"full_name":"Connolly, A. J.","last_name":"Connolly","first_name":"A. J."},{"last_name":"Eisenstein","first_name":"Daniel J.","full_name":"Eisenstein, Daniel J."},{"first_name":"Joshua A.","last_name":"Frieman","full_name":"Frieman, Joshua A."},{"first_name":"G. S.","last_name":"Hennessy","full_name":"Hennessy, G. S."},{"full_name":"Hindsley, Robert B.","last_name":"Hindsley","first_name":"Robert B."},{"last_name":"Ivezić","first_name":"Željko","full_name":"Ivezić, Željko"},{"last_name":"Kent","first_name":"Stephen","full_name":"Kent, Stephen"},{"full_name":"Kunszt, Peter Z.","last_name":"Kunszt","first_name":"Peter Z."},{"full_name":"Lee, Brian C.","first_name":"Brian C.","last_name":"Lee"},{"full_name":"Meiksin, Avery","last_name":"Meiksin","first_name":"Avery"},{"last_name":"Munn","first_name":"Jeffrey A.","full_name":"Munn, Jeffrey A."},{"full_name":"Newberg, Heidi Jo","last_name":"Newberg","first_name":"Heidi Jo"},{"full_name":"Nichol, R. C.","first_name":"R. C.","last_name":"Nichol"},{"full_name":"Nicinski, Tom","first_name":"Tom","last_name":"Nicinski"},{"full_name":"Pier, Jeffrey R.","first_name":"Jeffrey R.","last_name":"Pier"},{"full_name":"Richards, Gordon T.","first_name":"Gordon T.","last_name":"Richards"},{"last_name":"Richmond","first_name":"Michael W.","full_name":"Richmond, Michael W."},{"full_name":"Schlegel, David J.","last_name":"Schlegel","first_name":"David J."},{"full_name":"Smith, J. Allyn","last_name":"Smith","first_name":"J. Allyn"},{"full_name":"Strauss, Michael A.","first_name":"Michael A.","last_name":"Strauss"},{"full_name":"SubbaRao, Mark","first_name":"Mark","last_name":"SubbaRao"},{"last_name":"Szalay","first_name":"Alexander S.","full_name":"Szalay, Alexander S."},{"last_name":"Thakar","first_name":"Aniruddha R.","full_name":"Thakar, Aniruddha R."},{"full_name":"Tucker, Douglas L.","first_name":"Douglas L.","last_name":"Tucker"},{"first_name":"Daniel E.","last_name":"Vanden Berk","full_name":"Vanden Berk, Daniel E."},{"last_name":"Yanny","first_name":"Brian","full_name":"Yanny, Brian"},{"last_name":"Adelman","first_name":"Jennifer K.","full_name":"Adelman, Jennifer K."},{"full_name":"Anderson, Jr., John E.","first_name":"John E.","last_name":"Anderson, Jr."},{"first_name":"Scott F.","last_name":"Anderson","full_name":"Anderson, Scott F."},{"last_name":"Annis","first_name":"James","full_name":"Annis, James"},{"full_name":"Bahcall, Neta A.","first_name":"Neta A.","last_name":"Bahcall"},{"full_name":"Bakken, J. A.","first_name":"J. A.","last_name":"Bakken"},{"first_name":"Matthias","last_name":"Bartelmann","full_name":"Bartelmann, Matthias"},{"full_name":"Bastian, Steven","last_name":"Bastian","first_name":"Steven"},{"first_name":"Amanda","last_name":"Bauer","full_name":"Bauer, Amanda"},{"full_name":"Berman, Eileen","first_name":"Eileen","last_name":"Berman"},{"full_name":"Böhringer, Hans","first_name":"Hans","last_name":"Böhringer"},{"first_name":"William N.","last_name":"Boroski","full_name":"Boroski, William N."},{"full_name":"Bracker, Steve","last_name":"Bracker","first_name":"Steve"},{"last_name":"Briegel","first_name":"Charlie","full_name":"Briegel, Charlie"},{"full_name":"Briggs, John W.","last_name":"Briggs","first_name":"John W."},{"full_name":"Brinkmann, J.","first_name":"J.","last_name":"Brinkmann"},{"last_name":"Brunner","first_name":"Robert","full_name":"Brunner, Robert"},{"full_name":"Carey, Larry","first_name":"Larry","last_name":"Carey"},{"full_name":"Carr, Michael A.","last_name":"Carr","first_name":"Michael A."},{"last_name":"Chen","first_name":"Bing","full_name":"Chen, Bing"},{"first_name":"Damian","last_name":"Christian","full_name":"Christian, Damian"},{"full_name":"Colestock, Patrick L.","first_name":"Patrick L.","last_name":"Colestock"},{"full_name":"Crocker, J. H.","first_name":"J. H.","last_name":"Crocker"},{"first_name":"István","last_name":"Csabai","full_name":"Csabai, István"},{"last_name":"Czarapata","first_name":"Paul C.","full_name":"Czarapata, Paul C."},{"first_name":"Julianne","last_name":"Dalcanton","full_name":"Dalcanton, Julianne"},{"last_name":"Davidsen","first_name":"Arthur F.","full_name":"Davidsen, Arthur F."},{"full_name":"Davis, John Eric","first_name":"John Eric","last_name":"Davis"},{"full_name":"Dehnen, Walter","first_name":"Walter","last_name":"Dehnen"},{"full_name":"Dodelson, Scott","first_name":"Scott","last_name":"Dodelson"},{"full_name":"Doi, Mamoru","last_name":"Doi","first_name":"Mamoru"},{"full_name":"Dombeck, Tom","first_name":"Tom","last_name":"Dombeck"},{"full_name":"Donahue, Megan","first_name":"Megan","last_name":"Donahue"},{"first_name":"Nancy","last_name":"Ellman","full_name":"Ellman, Nancy"},{"full_name":"Elms, Brian R.","first_name":"Brian R.","last_name":"Elms"},{"full_name":"Evans, Michael L.","first_name":"Michael L.","last_name":"Evans"},{"full_name":"Eyer, Laurent","last_name":"Eyer","first_name":"Laurent"},{"full_name":"Fan, Xiaohui","first_name":"Xiaohui","last_name":"Fan"},{"full_name":"Federwitz, Glenn R.","first_name":"Glenn R.","last_name":"Federwitz"},{"last_name":"Friedman","first_name":"Scott","full_name":"Friedman, Scott"},{"last_name":"Fukugita","first_name":"Masataka","full_name":"Fukugita, Masataka"},{"first_name":"Roy","last_name":"Gal","full_name":"Gal, Roy"},{"first_name":"Bruce","last_name":"Gillespie","full_name":"Gillespie, Bruce"},{"full_name":"Glazebrook, Karl","last_name":"Glazebrook","first_name":"Karl"},{"full_name":"Gray, Jim","last_name":"Gray","first_name":"Jim"},{"first_name":"Eva K.","last_name":"Grebel","full_name":"Grebel, Eva K."},{"first_name":"Bruce","last_name":"Greenawalt","full_name":"Greenawalt, Bruce"},{"full_name":"Greene, Gretchen","last_name":"Greene","first_name":"Gretchen"},{"full_name":"Gunn, James E.","last_name":"Gunn","first_name":"James E."},{"last_name":"de Haas","first_name":"Ernst","full_name":"de Haas, Ernst"},{"full_name":"Haiman, Zoltán","orcid":"0000-0003-3633-5403","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","last_name":"Haiman","first_name":"Zoltán"},{"last_name":"Haldeman","first_name":"Merle","full_name":"Haldeman, Merle"},{"full_name":"Hall, Patrick B.","last_name":"Hall","first_name":"Patrick B."},{"last_name":"Hamabe","first_name":"Masaru","full_name":"Hamabe, Masaru"},{"full_name":"Hansen, Brad","first_name":"Brad","last_name":"Hansen"},{"full_name":"Harris, Frederick H.","first_name":"Frederick H.","last_name":"Harris"},{"full_name":"Harris, Hugh","last_name":"Harris","first_name":"Hugh"},{"first_name":"Michael","last_name":"Harvanek","full_name":"Harvanek, Michael"},{"first_name":"Suzanne L.","last_name":"Hawley","full_name":"Hawley, Suzanne L."},{"first_name":"J. J. E.","last_name":"Hayes","full_name":"Hayes, J. J. E."},{"last_name":"Heckman","first_name":"Timothy M.","full_name":"Heckman, Timothy M."},{"last_name":"Helmi","first_name":"Amina","full_name":"Helmi, Amina"},{"first_name":"Arne","last_name":"Henden","full_name":"Henden, Arne"},{"first_name":"Craig J.","last_name":"Hogan","full_name":"Hogan, Craig J."},{"full_name":"Hogg, David W.","last_name":"Hogg","first_name":"David W."},{"first_name":"Donald J.","last_name":"Holmgren","full_name":"Holmgren, Donald J."},{"last_name":"Holtzman","first_name":"Jon","full_name":"Holtzman, Jon"},{"last_name":"Huang","first_name":"Chih-Hao","full_name":"Huang, Chih-Hao"},{"first_name":"Charles","last_name":"Hull","full_name":"Hull, Charles"},{"last_name":"Ichikawa","first_name":"Shin-Ichi","full_name":"Ichikawa, Shin-Ichi"},{"first_name":"Takashi","last_name":"Ichikawa","full_name":"Ichikawa, Takashi"},{"first_name":"David E.","last_name":"Johnston","full_name":"Johnston, David E."},{"full_name":"Kauffmann, Guinevere","first_name":"Guinevere","last_name":"Kauffmann"},{"first_name":"Rita S. J.","last_name":"Kim","full_name":"Kim, Rita S. J."},{"full_name":"Kimball, Tim","last_name":"Kimball","first_name":"Tim"},{"full_name":"Kinney, E.","first_name":"E.","last_name":"Kinney"},{"full_name":"Klaene, Mark","first_name":"Mark","last_name":"Klaene"},{"first_name":"S. J.","last_name":"Kleinman","full_name":"Kleinman, S. J."},{"first_name":"Anatoly","last_name":"Klypin","full_name":"Klypin, Anatoly"},{"full_name":"Knapp, G. R.","first_name":"G. R.","last_name":"Knapp"},{"full_name":"Korienek, John","first_name":"John","last_name":"Korienek"},{"full_name":"Krolik, Julian","last_name":"Krolik","first_name":"Julian"},{"full_name":"Kron, Richard G.","first_name":"Richard G.","last_name":"Kron"},{"first_name":"Jurek","last_name":"Krzesiński","full_name":"Krzesiński, Jurek"},{"full_name":"Lamb, D. Q.","last_name":"Lamb","first_name":"D. Q."},{"full_name":"Leger, R. French","first_name":"R. French","last_name":"Leger"},{"full_name":"Limmongkol, Siriluk","last_name":"Limmongkol","first_name":"Siriluk"},{"first_name":"Carl","last_name":"Lindenmeyer","full_name":"Lindenmeyer, Carl"},{"last_name":"Long","first_name":"Daniel C.","full_name":"Long, Daniel C."},{"last_name":"Loomis","first_name":"Craig","full_name":"Loomis, Craig"},{"full_name":"Loveday, Jon","last_name":"Loveday","first_name":"Jon"},{"last_name":"MacKinnon","first_name":"Bryan","full_name":"MacKinnon, Bryan"},{"full_name":"Mannery, Edward J.","last_name":"Mannery","first_name":"Edward J."},{"first_name":"P. M.","last_name":"Mantsch","full_name":"Mantsch, P. M."},{"full_name":"Margon, Bruce","first_name":"Bruce","last_name":"Margon"},{"last_name":"McGehee","first_name":"Peregrine","full_name":"McGehee, Peregrine"},{"full_name":"McKay, Timothy A.","last_name":"McKay","first_name":"Timothy A."},{"full_name":"McLean, Brian","first_name":"Brian","last_name":"McLean"},{"full_name":"Menou, Kristen","first_name":"Kristen","last_name":"Menou"},{"full_name":"Merelli, Aronne","last_name":"Merelli","first_name":"Aronne"},{"first_name":"H. J.","last_name":"Mo","full_name":"Mo, H. J."},{"first_name":"David G.","last_name":"Monet","full_name":"Monet, David G."},{"full_name":"Nakamura, Osamu","first_name":"Osamu","last_name":"Nakamura"},{"last_name":"Narayanan","first_name":"Vijay K.","full_name":"Narayanan, Vijay K."},{"full_name":"Nash, Thomas","first_name":"Thomas","last_name":"Nash"},{"first_name":"Eric H.","last_name":"Neilsen, Jr.","full_name":"Neilsen, Jr., Eric H."},{"first_name":"Peter R.","last_name":"Newman","full_name":"Newman, Peter R."},{"first_name":"Atsuko","last_name":"Nitta","full_name":"Nitta, Atsuko"},{"full_name":"Odenkirchen, Michael","last_name":"Odenkirchen","first_name":"Michael"},{"first_name":"Norio","last_name":"Okada","full_name":"Okada, Norio"},{"full_name":"Okamura, Sadanori","first_name":"Sadanori","last_name":"Okamura"},{"full_name":"Ostriker, Jeremiah P.","last_name":"Ostriker","first_name":"Jeremiah P."},{"full_name":"Owen, Russell","last_name":"Owen","first_name":"Russell"},{"full_name":"Pauls, A. George","first_name":"A. George","last_name":"Pauls"},{"full_name":"Peoples, John","first_name":"John","last_name":"Peoples"},{"full_name":"Peterson, R. S.","last_name":"Peterson","first_name":"R. S."},{"first_name":"Donald","last_name":"Petravick","full_name":"Petravick, Donald"},{"full_name":"Pope, Adrian","first_name":"Adrian","last_name":"Pope"},{"last_name":"Pordes","first_name":"Ruth","full_name":"Pordes, Ruth"},{"first_name":"Marc","last_name":"Postman","full_name":"Postman, Marc"},{"full_name":"Prosapio, Angela","last_name":"Prosapio","first_name":"Angela"},{"full_name":"Quinn, Thomas R.","first_name":"Thomas R.","last_name":"Quinn"},{"last_name":"Rechenmacher","first_name":"Ron","full_name":"Rechenmacher, Ron"},{"full_name":"Rivetta, Claudio H.","last_name":"Rivetta","first_name":"Claudio H."},{"full_name":"Rix, Hans-Walter","last_name":"Rix","first_name":"Hans-Walter"},{"last_name":"Rockosi","first_name":"Constance M.","full_name":"Rockosi, Constance M."},{"full_name":"Rosner, Robert","first_name":"Robert","last_name":"Rosner"},{"full_name":"Ruthmansdorfer, Kurt","first_name":"Kurt","last_name":"Ruthmansdorfer"},{"first_name":"Dale","last_name":"Sandford","full_name":"Sandford, Dale"},{"first_name":"Donald P.","last_name":"Schneider","full_name":"Schneider, Donald P."},{"full_name":"Scranton, Ryan","last_name":"Scranton","first_name":"Ryan"},{"first_name":"Maki","last_name":"Sekiguchi","full_name":"Sekiguchi, Maki"},{"last_name":"Sergey","first_name":"Gary","full_name":"Sergey, Gary"},{"first_name":"Ravi","last_name":"Sheth","full_name":"Sheth, Ravi"},{"full_name":"Shimasaku, Kazuhiro","first_name":"Kazuhiro","last_name":"Shimasaku"},{"full_name":"Smee, Stephen","last_name":"Smee","first_name":"Stephen"},{"last_name":"Snedden","first_name":"Stephanie A.","full_name":"Snedden, Stephanie A."},{"first_name":"Albert","last_name":"Stebbins","full_name":"Stebbins, Albert"},{"last_name":"Stubbs","first_name":"Christopher","full_name":"Stubbs, Christopher"},{"first_name":"István","last_name":"Szapudi","full_name":"Szapudi, István"},{"full_name":"Szkody, Paula","last_name":"Szkody","first_name":"Paula"},{"first_name":"Gyula P.","last_name":"Szokoly","full_name":"Szokoly, Gyula P."},{"last_name":"Tabachnik","first_name":"Serge","full_name":"Tabachnik, Serge"},{"last_name":"Tsvetanov","first_name":"Zlatan","full_name":"Tsvetanov, Zlatan"},{"first_name":"Alan","last_name":"Uomoto","full_name":"Uomoto, Alan"},{"full_name":"Vogeley, Michael S.","last_name":"Vogeley","first_name":"Michael S."},{"last_name":"Voges","first_name":"Wolfgang","full_name":"Voges, Wolfgang"},{"last_name":"Waddell","first_name":"Patrick","full_name":"Waddell, Patrick"},{"first_name":"René","last_name":"Walterbos","full_name":"Walterbos, René"},{"full_name":"Wang, Shu-i","first_name":"Shu-i","last_name":"Wang"},{"full_name":"Watanabe, Masaru","last_name":"Watanabe","first_name":"Masaru"},{"full_name":"Weinberg, David H.","first_name":"David H.","last_name":"Weinberg"},{"full_name":"White, Richard L.","last_name":"White","first_name":"Richard L."},{"full_name":"White, Simon D. M.","first_name":"Simon D. M.","last_name":"White"},{"first_name":"Brian","last_name":"Wilhite","full_name":"Wilhite, Brian"},{"first_name":"David","last_name":"Wolfe","full_name":"Wolfe, David"},{"first_name":"Naoki","last_name":"Yasuda","full_name":"Yasuda, Naoki"},{"first_name":"Donald G.","last_name":"York","full_name":"York, Donald G."},{"last_name":"Zehavi","first_name":"Idit","full_name":"Zehavi, Idit"},{"full_name":"Zheng, Wei","first_name":"Wei","last_name":"Zheng"}],"citation":{"ista":"Stoughton C et al. 2002. Sloan digital sky survey: Early data release. The Astronomical Journal. 123(1), 485–548.","mla":"Stoughton, Chris, et al. “Sloan Digital Sky Survey: Early Data Release.” <i>The Astronomical Journal</i>, vol. 123, no. 1, American Astronomical Society, 2002, pp. 485–548, doi:<a href=\"https://doi.org/10.1086/324741\">10.1086/324741</a>.","ieee":"C. Stoughton <i>et al.</i>, “Sloan digital sky survey: Early data release,” <i>The Astronomical Journal</i>, vol. 123, no. 1. American Astronomical Society, pp. 485–548, 2002.","short":"C. Stoughton, R.H. Lupton, M. Bernardi, M.R. Blanton, S. Burles, F.J. Castander, A.J. Connolly, D.J. Eisenstein, J.A. Frieman, G.S. Hennessy, R.B. Hindsley, Ž. Ivezić, S. Kent, P.Z. Kunszt, B.C. Lee, A. Meiksin, J.A. Munn, H.J. Newberg, R.C. Nichol, T. Nicinski, J.R. Pier, G.T. Richards, M.W. Richmond, D.J. Schlegel, J.A. Smith, M.A. Strauss, M. SubbaRao, A.S. Szalay, A.R. Thakar, D.L. Tucker, D.E. Vanden Berk, B. Yanny, J.K. Adelman, J.E. Anderson, Jr., S.F. Anderson, J. Annis, N.A. Bahcall, J.A. Bakken, M. Bartelmann, S. Bastian, A. Bauer, E. Berman, H. Böhringer, W.N. Boroski, S. Bracker, C. Briegel, J.W. Briggs, J. Brinkmann, R. Brunner, L. Carey, M.A. Carr, B. Chen, D. Christian, P.L. Colestock, J.H. Crocker, I. Csabai, P.C. Czarapata, J. Dalcanton, A.F. Davidsen, J.E. Davis, W. Dehnen, S. Dodelson, M. Doi, T. Dombeck, M. Donahue, N. Ellman, B.R. Elms, M.L. Evans, L. Eyer, X. Fan, G.R. Federwitz, S. Friedman, M. Fukugita, R. Gal, B. Gillespie, K. Glazebrook, J. Gray, E.K. Grebel, B. Greenawalt, G. Greene, J.E. Gunn, E. de Haas, Z. Haiman, M. Haldeman, P.B. Hall, M. Hamabe, B. Hansen, F.H. Harris, H. Harris, M. Harvanek, S.L. Hawley, J.J.E. Hayes, T.M. Heckman, A. Helmi, A. Henden, C.J. Hogan, D.W. Hogg, D.J. Holmgren, J. Holtzman, C.-H. Huang, C. Hull, S.-I. Ichikawa, T. Ichikawa, D.E. Johnston, G. Kauffmann, R.S.J. Kim, T. Kimball, E. Kinney, M. Klaene, S.J. Kleinman, A. Klypin, G.R. Knapp, J. Korienek, J. Krolik, R.G. Kron, J. Krzesiński, D.Q. Lamb, R.F. Leger, S. Limmongkol, C. Lindenmeyer, D.C. Long, C. Loomis, J. Loveday, B. MacKinnon, E.J. Mannery, P.M. Mantsch, B. Margon, P. McGehee, T.A. McKay, B. McLean, K. Menou, A. Merelli, H.J. Mo, D.G. Monet, O. Nakamura, V.K. Narayanan, T. Nash, E.H. Neilsen, Jr., P.R. Newman, A. Nitta, M. Odenkirchen, N. Okada, S. Okamura, J.P. Ostriker, R. Owen, A.G. Pauls, J. Peoples, R.S. Peterson, D. Petravick, A. Pope, R. Pordes, M. Postman, A. Prosapio, T.R. Quinn, R. Rechenmacher, C.H. Rivetta, H.-W. Rix, C.M. Rockosi, R. Rosner, K. Ruthmansdorfer, D. Sandford, D.P. Schneider, R. Scranton, M. Sekiguchi, G. Sergey, R. Sheth, K. Shimasaku, S. Smee, S.A. Snedden, A. Stebbins, C. Stubbs, I. Szapudi, P. Szkody, G.P. Szokoly, S. Tabachnik, Z. Tsvetanov, A. Uomoto, M.S. Vogeley, W. Voges, P. Waddell, R. Walterbos, S. Wang, M. Watanabe, D.H. Weinberg, R.L. White, S.D.M. White, B. Wilhite, D. Wolfe, N. Yasuda, D.G. York, I. Zehavi, W. Zheng, The Astronomical Journal 123 (2002) 485–548.","apa":"Stoughton, C., Lupton, R. H., Bernardi, M., Blanton, M. R., Burles, S., Castander, F. J., … Zheng, W. (2002). Sloan digital sky survey: Early data release. <i>The Astronomical Journal</i>. American Astronomical Society. <a href=\"https://doi.org/10.1086/324741\">https://doi.org/10.1086/324741</a>","ama":"Stoughton C, Lupton RH, Bernardi M, et al. Sloan digital sky survey: Early data release. <i>The Astronomical Journal</i>. 2002;123(1):485-548. doi:<a href=\"https://doi.org/10.1086/324741\">10.1086/324741</a>","chicago":"Stoughton, Chris, Robert H. Lupton, Mariangela Bernardi, Michael R. Blanton, Scott Burles, Francisco J. Castander, A. J. Connolly, et al. “Sloan Digital Sky Survey: Early Data Release.” <i>The Astronomical Journal</i>. American Astronomical Society, 2002. <a href=\"https://doi.org/10.1086/324741\">https://doi.org/10.1086/324741</a>."},"scopus_import":"1","OA_type":"free access","publisher":"American Astronomical Society","oa_version":"None","article_type":"original","status":"public","quality_controlled":"1","_id":"17799","year":"2002","date_published":"2002-01-01T00:00:00Z","extern":"1","language":[{"iso":"eng"}],"volume":123,"publication":"The Astronomical Journal","type":"journal_article","doi":"10.1086/324741","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87"}