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Loading contentThe W. M. Keck Observatory is an astronomical observatory on Mauna Kea, Hawaii, operating two of the largest optical and infrared telescopes in the world.
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How W. M. Keck Observatory connects across Asteria Star — scientific, cultural, and astrological links are kept separate.
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The Mauna Kea Observatories are a collection of independent astronomical research facilities located near the summit of Mauna Kea on the island of Hawaii.
CARA, a partnership of Caltech and the University of California (with NASA as a partner), operates the W. M. Keck Observatory.
Visible light is the band the human eye sees and the traditional domain of optical telescopes.
The near-infrared bridges visible and thermal infrared light, key for studying the early universe and exoplanet atmospheres.
Keck I is one of two 10-metre Keck telescopes on Mauna Kea, using a segmented primary mirror of 36 hexagonal segments.
Keck II is the second 10-metre Keck telescope, used with adaptive optics for high-resolution near-infrared studies, including the Galactic Centre.
14 Her b is a gas giant orbiting 14 Her, discovered in 2002 by the radial velocity method.
2MASS J01225093-2439505 b is a gas giant orbiting 2MASS J01225093-2439505, discovered in 2013 by the direct imaging.
KOINTREAU-4 b is a gas giant orbiting 2MASS J16262785-2625152, discovered in 2026 by the direct imaging.
2MASS J22362452+4751425 b is a gas giant orbiting 2MASS J22362452+4751425, discovered in 2016 by the direct imaging.
CFBDSIR J145829+101343 b is a gas giant orbiting CFBDSIR J145829+101343, discovered in 2011 by the direct imaging.
GJ 1148 b is a gas giant orbiting GJ 1148, discovered in 2010 by the radial velocity method.
GJ 15 A b is a terrestrial planet orbiting GJ 15 A, discovered in 2014 by the radial velocity method.
GJ 179 b is a gas giant orbiting GJ 179, discovered in 2009 by the radial velocity method.
GJ 251 b is a super-earth orbiting GJ 251, discovered in 2020 by the radial velocity method.
GJ 317 b is a gas giant orbiting GJ 317, discovered in 2007 by the radial velocity method.
GJ 317 c is a gas giant orbiting GJ 317, discovered in 2016 by the radial velocity method.
GJ 414 A b is a mini-neptune orbiting GJ 414 A, discovered in 2021 by the radial velocity method.
GJ 414 A c is a gas giant orbiting GJ 414 A, discovered in 2021 by the radial velocity method.
GJ 436 b is a mini-neptune orbiting GJ 436, discovered in 2004 by the radial velocity method.
GJ 649 b is a gas giant orbiting GJ 649, discovered in 2009 by the radial velocity method.
GJ 849 b is a gas giant orbiting GJ 849, discovered in 2006 by the radial velocity method.
GJ 849 c is a gas giant orbiting GJ 849, discovered in 2014 by the radial velocity method.
GJ 876 d is a mini-neptune orbiting GJ 876, discovered in 2005 by the radial velocity method.
GJ 876 e is a mini-neptune orbiting GJ 876, discovered in 2010 by the radial velocity method.
HD 102956 b is a hot jupiter orbiting HD 102956, discovered in 2010 by the radial velocity method.
HD 10647 b is a gas giant orbiting HD 10647, discovered in 2006 by the radial velocity method.
HD 114783 b is a gas giant orbiting HD 114783, discovered in 2001 by the radial velocity method.
HD 114783 c is a gas giant orbiting HD 114783, discovered in 2016 by the radial velocity method.
HD 11506 b is a gas giant orbiting HD 11506, discovered in 2007 by the radial velocity method.
HD 11506 c is a gas giant orbiting HD 11506, discovered in 2008 by the radial velocity method.
HD 125612 b is a gas giant orbiting HD 125612, discovered in 2007 by the radial velocity method.
HD 128311 b is a gas giant orbiting HD 128311, discovered in 2002 by the radial velocity method.
HD 128311 c is a gas giant orbiting HD 128311, discovered in 2005 by the radial velocity method.
HD 131496 b is a gas giant orbiting HD 131496, discovered in 2011 by the radial velocity method.
HD 134987 b is a gas giant orbiting HD 134987, discovered in 1999 by the radial velocity method.
HD 136418 b is a gas giant orbiting HD 136418, discovered in 2009 by the radial velocity method.
HD 1461 b is a mini-neptune orbiting HD 1461, discovered in 2010 by the radial velocity method.
HD 1502 b is a gas giant orbiting HD 1502, discovered in 2011 by the radial velocity method.
HD 152581 b is a gas giant orbiting HD 152581, discovered in 2011 by the radial velocity method.
HD 154345 b is a gas giant orbiting HD 154345, discovered in 2006 by the radial velocity method.
HD 156668 b is a super-earth orbiting HD 156668, discovered in 2010 by the radial velocity method.
HD 164922 b is a gas giant orbiting HD 164922, discovered in 2005 by the radial velocity method.
HD 175541 b is a gas giant orbiting HD 175541, discovered in 2007 by the radial velocity method.
HD 181342 b is a gas giant orbiting HD 181342, discovered in 2009 by the radial velocity method.
HD 18742 b is a gas giant orbiting HD 18742, discovered in 2011 by the radial velocity method.
HD 190360 c is a mini-neptune orbiting HD 190360, discovered in 2005 by the radial velocity method.
HD 191939 e is a gas giant orbiting HD 191939, discovered in 2022 by the radial velocity method.
HD 191939 f is a gas giant orbiting HD 191939, discovered in 2022 by the radial velocity method.
HD 206610 b is a gas giant orbiting HD 206610, discovered in 2009 by the radial velocity method.
A hot Jupiter and the first exoplanet observed transiting its host star and to have its atmosphere detected.
HD 210277 b is a gas giant orbiting HD 210277, discovered in 1998 by the radial velocity method.
HD 212771 b is a gas giant orbiting HD 212771, discovered in 2009 by the radial velocity method.
HD 218566 b is a gas giant orbiting HD 218566, discovered in 2010 by the radial velocity method.
HD 224693 b is a gas giant orbiting HD 224693, discovered in 2006 by the radial velocity method.
HD 231701 b is a gas giant orbiting HD 231701, discovered in 2007 by the radial velocity method.
HD 28678 b is a gas giant orbiting HD 28678, discovered in 2011 by the radial velocity method.
HD 30856 b is a gas giant orbiting HD 30856, discovered in 2011 by the radial velocity method.
HD 33142 b is a gas giant orbiting HD 33142, discovered in 2011 by the radial velocity method.
HD 33142 c is a gas giant orbiting HD 33142, discovered in 2016 by the radial velocity method.
HD 34445 b is a gas giant orbiting HD 34445, discovered in 2009 by the radial velocity method.
HD 37124 b is a gas giant orbiting HD 37124, discovered in 2002 by the radial velocity method.
HD 37124 c is a gas giant orbiting HD 37124, discovered in 2002 by the radial velocity method.
HD 37124 d is a gas giant orbiting HD 37124, discovered in 2005 by the radial velocity method.
HD 4208 b is a gas giant orbiting HD 4208, discovered in 2001 by the radial velocity method.
HD 45350 b is a gas giant orbiting HD 45350, discovered in 2004 by the radial velocity method.
HD 46375 b is a hot jupiter orbiting HD 46375, discovered in 2000 by the radial velocity method.
HD 49674 b is a hot jupiter orbiting HD 49674, discovered in 2002 by the radial velocity method.
HD 52265 b is a gas giant orbiting HD 52265, discovered in 2000 by the radial velocity method.
HD 73534 b is a gas giant orbiting HD 73534, discovered in 2008 by the radial velocity method.
HD 75898 b is a gas giant orbiting HD 75898, discovered in 2007 by the radial velocity method.
HD 7924 b is an exoplanet orbiting HD 7924, discovered in 2008 by the radial velocity method.
HD 7924 c is an exoplanet orbiting HD 7924, discovered in 2015 by the radial velocity method.
HD 7924 d is an exoplanet orbiting HD 7924, discovered in 2015 by the radial velocity method.
HD 82886 b is a gas giant orbiting HD 82886, discovered in 2011 by the radial velocity method.
HD 86081 b is a hot jupiter orbiting HD 86081, discovered in 2006 by the radial velocity method.
HD 96063 b is a gas giant orbiting HD 96063, discovered in 2011 by the radial velocity method.
HD 97658 b is a super-earth orbiting HD 97658, discovered in 2010 by the radial velocity method.
HD 98219 b is a gas giant orbiting HD 98219, discovered in 2011 by the radial velocity method.
HD 99109 b is a gas giant orbiting HD 99109, discovered in 2005 by the radial velocity method.
HD 99492 b is a mini-neptune orbiting HD 99492, discovered in 2004 by the radial velocity method.
HIP 14810 b is a hot jupiter orbiting HIP 14810, discovered in 2005 by the radial velocity method.
HIP 14810 c is a gas giant orbiting HIP 14810, discovered in 2006 by the radial velocity method.
HIP 14810 d is a gas giant orbiting HIP 14810, discovered in 2009 by the radial velocity method.
HIP 41378 g is a mini-neptune orbiting HIP 41378, discovered in 2025 by the radial velocity method.
HIP 57274 b is an exoplanet orbiting HIP 57274, discovered in 2011 by the radial velocity method.
HIP 57274 c is a gas giant orbiting HIP 57274, discovered in 2011 by the radial velocity method.
HIP 57274 d is a gas giant orbiting HIP 57274, discovered in 2011 by the radial velocity method.
HIP 79431 b is a gas giant orbiting HIP 79431, discovered in 2009 by the radial velocity method.
HR 8799 d is a gas giant orbiting HR 8799, discovered in 2008 by the direct imaging.
HR 8799 e is a gas giant orbiting HR 8799, discovered in 2010 by the direct imaging.
KOINTREAU-3 b is a gas giant orbiting ISO-Oph 96, discovered in 2026 by the direct imaging.
Kepler-100 e is a mini-neptune orbiting Kepler-100, discovered in 2023 by the radial velocity method.
Kepler-139 e is a gas giant orbiting Kepler-139, discovered in 2023 by the radial velocity method.
Kepler-48 e is a gas giant orbiting Kepler-48, discovered in 2014 by the radial velocity method.
Kepler-48 f is a gas giant orbiting Kepler-48, discovered in 2023 by the radial velocity method.
Kepler-65 e is a gas giant orbiting Kepler-65, discovered in 2019 by the radial velocity method.
Kepler-68 d is a gas giant orbiting Kepler-68, discovered in 2013 by the radial velocity method.
Kepler-88 d is a gas giant orbiting KOI-142, discovered in 2020 by the radial velocity method.
PZ Tel b is a gas giant orbiting PZ Tel, discovered in 2023 by the direct imaging.
ROXs 12 b is a gas giant orbiting ROXs 12, discovered in 2013 by the direct imaging.
WISEP J121756.91+162640.2 A b is a gas giant orbiting WISEP J121756.91+162640.2 A, discovered in 2012 by the direct imaging.
KOINTREAU-1 b is a gas giant orbiting XEST 17-036, discovered in 2026 by the direct imaging.
Andrea Ghez used the Keck telescopes and adaptive optics to follow stars orbiting the centre of the Milky Way with extraordinary precision.
Over three decades, the teams of Reinhard Genzel and Andrea Ghez tracked stars orbiting the centre of the Milky Way, revealing a four-million-solar-mass black hole, Sagittarius A*.
ALMA is an international radio observatory of millimeter and submillimeter antennas located on the Chajnantor plateau in the Atacama Desert of northern Chile.
Arecibo Observatory in Puerto Rico operated a 305-metre radio dish — for decades the largest single-dish radio telescope — until its collapse in 2020.
Cerro Tololo Inter-American Observatory in Chile is a NOIRLab site whose telescopes carried out the Dark Energy Survey.
The next-generation ground-based observatory for very-high-energy gamma rays, an array of imaging atmospheric Cherenkov telescopes being built across two sites — one in the northern hemisphere on La Palma and one in the southern hemisphere in Chile — to catch the faint blue flashes that gamma rays make in the atmosphere. The largest such observatory ever built.
A proposed United States third-generation gravitational-wave observatory with arms up to forty kilometres long — a scaled-up successor to LIGO that, with the Einstein Telescope, would open the distant gravitational-wave universe.
A proposed European third-generation gravitational-wave observatory, to be built underground in a triangle of ten-kilometre arms. Its far greater sensitivity would detect compact-binary mergers across most of the observable universe.
Facts on this topic will be cited from these primary and reference sources.
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.