克卜勒20 (Chinese Wikipedia)
Analysis of information sources in references of the Wikipedia article "克卜勒20" in Chinese language version.
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ancientsuns.com
- Kepler-20e and Kepler-20f — 2 Earth-sized Planets - Ancient Suns. [2013-12-06]. （原始内容存档于2013-12-11）.
arxiv.org
- Zacharias, N.; et al, The Third US Naval Observatory CCD Astrograph Catalog (UCAC3), The Astronomical Journal, June 2010, 139 (6): 2184–2199, Bibcode:2010AJ....139.2184Z, arXiv:1003.2136
, doi:10.1088/0004-6256/139/6/2184 See the online data VizieR results for 3UC 265-159969. - Lasker, Barry M.; et al, The Second-Generation Guide Star Catalog: Description and Properties, The Astronomical Journal, August 2008, 136 (2): 735–766, Bibcode:2008AJ....136..735L, arXiv:0807.2522 , doi:10.1088/0004-6256/136/2/735
- Two Earth-sized planets orbiting Kepler-20 - Cornell University Library. [2013-12-06]. （原始内容存档于2016-08-21）.
- Kepler-20: A Sun-like Star with Three Sub-Neptune Exoplanets and Two Earth-size Candidates - Cornell University Library. [2013-12-06]. （原始内容存档于2017-05-10）.
books.google.com
- Sherrod, P. Clay; Koed, Thomas L., A Complete Manual of Amateur Astronomy: Tools and Techniques for Astronomical Observations, Astronomy Series, Courier Dover Publications: 9, 2003 [2011-12-22], ISBN 0-486-42820-6, （原始内容存档于2014-01-04）
centauri-dreams.org
- Transiting 'Hot Neptune' Found, Centauri Dreams, 2007-05-16 [2013-12-06], （原始内容存档于2013-12-10）
cosis.net
- Hot Neptunes: A Key To Giant Planet Formation (PDF). [2013-12-06]. （原始内容存档 (PDF)于2019-06-17）.
- Oligarchic formation of hot Neptunes (PDF). [2013-12-06]. （原始内容存档 (PDF)于2017-10-06）.
csiro.au
outreach.atnf.csiro.au
- The Colour of Stars, Australia Telescope, Outreach and Education (Commonwealth Scientific and Industrial Research Organisation), December 21, 2004 [2012-01-16], （原始内容存档于2012-03-10）
doi.org
- Zacharias, N.; et al, The Third US Naval Observatory CCD Astrograph Catalog (UCAC3), The Astronomical Journal, June 2010, 139 (6): 2184–2199, Bibcode:2010AJ....139.2184Z, arXiv:1003.2136 , doi:10.1088/0004-6256/139/6/2184 See the online data VizieR results for 3UC 265-159969.
- Lasker, Barry M.; et al, The Second-Generation Guide Star Catalog: Description and Properties, The Astronomical Journal, August 2008, 136 (2): 735–766, Bibcode:2008AJ....136..735L, arXiv:0807.2522 , doi:10.1088/0004-6256/136/2/735
exoplanet.eu
- Schneider, Jean, Star : Kepler-20, The Extrasolar Planets Encyclopaedia (CNRS/LUTH - Paris Observatory), [2011-12-21], （原始内容存档于2012-01-19）
foxnews.com
- Moskowitz, Clara. First Ever 'Earth-Sized' Alien Planets Discovered. Fox News Channel. 20 December 2011 [2011-12-20]. （原始内容存档于2011-12-25）.
harvard.edu
ui.adsabs.harvard.edu
- Zacharias, N.; et al, The Third US Naval Observatory CCD Astrograph Catalog (UCAC3), The Astronomical Journal, June 2010, 139 (6): 2184–2199, Bibcode:2010AJ....139.2184Z, arXiv:1003.2136 , doi:10.1088/0004-6256/139/6/2184 See the online data VizieR results for 3UC 265-159969.
- Lasker, Barry M.; et al, The Second-Generation Guide Star Catalog: Description and Properties, The Astronomical Journal, August 2008, 136 (2): 735–766, Bibcode:2008AJ....136..735L, arXiv:0807.2522 , doi:10.1088/0004-6256/136/2/735
iop.org
iopscience.iop.org
- KEPLER-20: A SUN-LIKE STAR WITH THREE SUB-NEPTUNE EXOPLANETS AND TWO EARTH-SIZE CANDIDATES - IOP science. [2013-12-06]. （原始内容存档于2014-07-14）.
latimes.com
articles.latimes.com
- Two Earth-sized planets found orbiting star Kepler-20 - Los Angeles Times. [2013-12-06]. （原始内容存档于2013-12-17）.
nasa.gov
kepler.nasa.gov
- NASA Staff. Kepler: A Search For Habitable Planets - Kepler-20e. NASA. 20 December 2011 [2011-12-23]. （原始内容存档于2017-03-31）.
- NASA Staff. Kepler: A Search For Habitable Planets - Kepler-20f. NASA. 20 December 2011 [2011-12-23]. （原始内容存档于2017-03-31）.
- Kepler-20 system: 5 planets including two that are Earth-size - NASA. [2013-12-06]. （原始内容存档于2013-12-11）.
- Kepler-20b - NASA. [2013-12-06]. （原始内容存档于2013-07-10）.
- Kepler-20e - NASA. [2013-12-06]. （原始内容存档于2017-03-31）.
- Kepler-20c - NASA. [2013-12-06]. （原始内容存档于2012-05-03）.
- Kepler-20f - NASA. [2013-12-06]. （原始内容存档于2017-03-31）.
- Kepler-20d - NASA. [2013-12-06]. （原始内容存档于2013-07-10）.
nasa.gov
- Johnson, Michele. NASA Discovers First Earth-size Planets Beyond Our Solar System. NASA. 20 December 2011 [2011-12-20]. （原始内容存档于2019-05-04）.
- NASA Discovers First Earth-size Planets Beyond Our Solar System - NASA. [2011-12-20]. （原始内容存档于2019-05-04）.
nature.com
- Hand, Eric. Kepler discovers first Earth-sized exoplanets. Nature. 20 December 2011 [2011-12-20]. （原始内容存档于2012-01-04）.
- Two Earth-sized planets orbiting Kepler-20 - Nature
nytimes.com
- Overbye, Dennis. Two Earth-Size Planets Are Discovered. New York Times. 20 December 2011 [2011-12-21]. （原始内容存档于2013-01-26）.
space.com
- Tate, Karl. At Last, Earth-Sized Alien Worlds (Infographic). Space.com. 20 December 2011 [2011-12-21]. （原始内容存档于2012-01-06）.
theguardian.com
- Two new planets are most Earth-like ever seen – but hot as hell - The Guardian. [2013-12-06]. （原始内容存档于2013-12-12）.
u-strasbg.fr
simbad.u-strasbg.fr
- Kepler-20 -- Star, SIMBAD (Centre de Données astronomiques de Strasbourg), [2011-12-21], （原始内容存档于2020-08-01）
web.archive.org
- Kepler-20 -- Star, SIMBAD (Centre de Données astronomiques de Strasbourg), [2011-12-21], （原始内容存档于2020-08-01）
- Schneider, Jean, Star : Kepler-20, The Extrasolar Planets Encyclopaedia (CNRS/LUTH - Paris Observatory), [2011-12-21], （原始内容存档于2012-01-19）
- Hand, Eric. Kepler discovers first Earth-sized exoplanets. Nature. 20 December 2011 [2011-12-20]. （原始内容存档于2012-01-04）.
- Johnson, Michele. NASA Discovers First Earth-size Planets Beyond Our Solar System. NASA. 20 December 2011 [2011-12-20]. （原始内容存档于2019-05-04）.
- Two new planets are most Earth-like ever seen – but hot as hell - The Guardian. [2013-12-06]. （原始内容存档于2013-12-12）.
- Kepler-20e and Kepler-20f — 2 Earth-sized Planets - Ancient Suns. [2013-12-06]. （原始内容存档于2013-12-11）.
- Sherrod, P. Clay; Koed, Thomas L., A Complete Manual of Amateur Astronomy: Tools and Techniques for Astronomical Observations, Astronomy Series, Courier Dover Publications: 9, 2003 [2011-12-22], ISBN 0-486-42820-6, （原始内容存档于2014-01-04）
- Two Earth-sized planets found orbiting star Kepler-20 - Los Angeles Times. [2013-12-06]. （原始内容存档于2013-12-17）.
- NASA Staff. Kepler: A Search For Habitable Planets - Kepler-20e. NASA. 20 December 2011 [2011-12-23]. （原始内容存档于2017-03-31）.
- NASA Staff. Kepler: A Search For Habitable Planets - Kepler-20f. NASA. 20 December 2011 [2011-12-23]. （原始内容存档于2017-03-31）.
- Kepler-20 system: 5 planets including two that are Earth-size - NASA. [2013-12-06]. （原始内容存档于2013-12-11）.
- Moskowitz, Clara. First Ever 'Earth-Sized' Alien Planets Discovered. Fox News Channel. 20 December 2011 [2011-12-20]. （原始内容存档于2011-12-25）.
- Tate, Karl. At Last, Earth-Sized Alien Worlds (Infographic). Space.com. 20 December 2011 [2011-12-21]. （原始内容存档于2012-01-06）.
- Two Earth-sized planets orbiting Kepler-20 - Cornell University Library. [2013-12-06]. （原始内容存档于2016-08-21）.
- Kepler-20e - NASA. [2013-12-06]. （原始内容存档于2017-03-31）.
- Kepler-20c - NASA. [2013-12-06]. （原始内容存档于2012-05-03）.
- Kepler-20f - NASA. [2013-12-06]. （原始内容存档于2017-03-31）.
- NASA Discovers First Earth-size Planets Beyond Our Solar System - NASA. [2011-12-20]. （原始内容存档于2019-05-04）.
- KEPLER-20: A SUN-LIKE STAR WITH THREE SUB-NEPTUNE EXOPLANETS AND TWO EARTH-SIZE CANDIDATES - IOP science. [2013-12-06]. （原始内容存档于2014-07-14）.
- Hot Neptunes: A Key To Giant Planet Formation (PDF). [2013-12-06]. （原始内容存档 (PDF)于2019-06-17）.
- Oligarchic formation of hot Neptunes (PDF). [2013-12-06]. （原始内容存档 (PDF)于2017-10-06）.
- Transiting 'Hot Neptune' Found, Centauri Dreams, 2007-05-16 [2013-12-06], （原始内容存档于2013-12-10）
- Kepler-20: A Sun-like Star with Three Sub-Neptune Exoplanets and Two Earth-size Candidates - Cornell University Library. [2013-12-06]. （原始内容存档于2017-05-10）.
webcitation.org
- The Colour of Stars, Australia Telescope, Outreach and Education (Commonwealth Scientific and Industrial Research Organisation), December 21, 2004 [2012-01-16], （原始内容存档于2012-03-10）
- Overbye, Dennis. Two Earth-Size Planets Are Discovered. New York Times. 20 December 2011 [2011-12-21]. （原始内容存档于2013-01-26）.
- Kepler-20b - NASA. [2013-12-06]. （原始内容存档于2013-07-10）.
- Kepler-20d - NASA. [2013-12-06]. （原始内容存档于2013-07-10）.