List of exoplanet search projects

The following is a list of exoplanet search projects.

Ground-based search projects
Project name Status Number of exoplanets found Notes
Anglo-Australian Planet Search (AAPS) Active 28 (as of February 2014)
Automated Planet Finder (APF) Active 0 based at the Lick Observatory (also known as the Rocky Planet Finder)[1]
Carl Sagan Institute Active 0
CARMENES[2] Active 4[3][4][5] based at Calar Alto Observatory
CORALIE spectrograph Active 5 based at Leonhard Euler Telescope
East-Asian Planet Search Network (EAPSNET) Active 1
ELODIE Decommissioned 4
EPICS Future (2025) N/A based at the E-ELT[6][7]
ESPRESSO Active N/A based at the VLT[8][9]
EXPRES Active N/A based at the Lowell Discovery Telescope[10]
FINDS Exo-Earths Active 0 based at the 3m telescope at Lick Observatory[11]
Gemini Planet Imager (GPI) Active 1 [12]
Geneva Extrasolar Planet Search Active 1+
High Accuracy Radial Velocity Planet Searcher (HARPS) Active 130+ [13]
HARPS-N Active 18+[14]
HATNet and HATSouth Projects (HAT) Active 109 [15][16]
Hunt for Exomoons with Kepler (HEK) Active 0
HiCIAO Active 0
High Resolution Echelle Spectrometer (HIRES) Active 7+[17] based at the W. M. Keck Observatory
KELT Decommissioned[18] 26[19]
Lick–Carnegie Exoplanet Survey (LCES) Active 1+
Magellan Planet Search Program Active 10+
MARVELS Active 1+[20]
MASCARA Active 4[21]
MEarth Project Active 3[22]
Microlensing Follow-Up Network (MicroFUN) Merged with PLANET 10
Microlensing Observations in Astrophysics (MOA) Active 8 Mt. John University Observatory
MINiature Exoplanet Radial Velocity Array (MINERVA) Active 0
N2K Consortium Active 7
New Mexico Exoplanet Spectroscopic Survey Instrument (NESSI) Active 0
Next-Generation Transit Survey (NGTS) Active 3[23][24][25] at Paranal, since 2015
Okayama Planet Search Program (OPSP) Active 3
Optical Gravitational Lensing Experiment (OGLE) Active 17+
PlanetPol Decommissioned 0
PRL Advanced Radial-velocity All-sky Search (PARAS) Active 1[26] Spectrograph integrated with the 1.2m Gurushikhar Observatory in Mount Abu, India.
Project 1640 Active 0+
Qatar Exoplanet Survey (QES) Active 9 [27]
Search for extraterrestrial intelligence (SETI) Active 0
SOPHIE échelle spectrograph Active 0+ [28]
Spectro-Polarimetric High-Contrast Exoplanet Research (SPHERE) Active 1+[29]
SPECULOOS Commissioning - Searching 1,200 nearby "Ultra Cool Dwarfs" (M7 and later). Successor to TRAPPIST.[30]
Strategic Explorations of Exoplanets and Disks with Subaru (SEEDS) Active 1+ [31]
SuperWASP (WASP) Active 191[32] [33]
Systemic Active 0 an amateur search project
The Habitable Exoplanet Hunting Project Active 1 (candidate)[34][35] International network of more than 30 observatories including universities and amateur astronomers.
Trans-Atlantic Exoplanet Survey (TrES) Decommissioned 5
Transiting Planets and Planetesimals Small Telescope (TRAPPIST) Active 7 Searching 50 nearby "Ultra Cool Dwarfs" (M7 and later). Prototype for SPECULOOS.
XO Telescope (XO) Active 5
ZIMPOL/CHEOPS Active 0 subsystem of the VLT-SPHERE instrument, based at the VLT[36]

Space missions

Past and current
Name Launch date End date Number of exoplanets found Current candidates Telescope use
MOST June 20, 2003 Ongoing 1+ 0 First spacecraft dedicated to the study of asteroseismology
EPOXI July 21, 2005 August 8, 2013 0 0 Characterized planets and fly-by of comet
SWEEPS 2006 2006 16 0 Based from the HST, a short 7 day mission looking for exoplanets
COROT December 27, 2006 November 2, 2012 34 600 Mission to look for exoplanets using the transit method
Kepler March 7, 2009 August 15, 2013 2,347 2,420 Mission to look for large numbers of exoplanets using the transit method
K2 November 18, 2013 October 30, 2018 427 891 (+627 microlensing events) After the reaction wheels failed on Kepler, this mission was created
Gaia December 19, 2013 Ongoing 0 0 Map 1 billion astronomical objects in the Milky Way (First data Release November 2, 2016)
ASTERIA November 2017 Ongoing 0 0 CubeSat, technology demonstrator
TESS April 18, 2018 Ongoing 38 1517 To search for new exoplanets; rotating so by the end of its two-year mission it will have observed stars from all over the sky. It is expected to find at least 3,000 new exoplanets.
CHEOPS 2019[37] Ongoing 0 0 To learn more about how exoplanets form, probe atmospheres, and characterize super-Earths. 20% of time will be open to community use.[38] Duration: 3.5 (+ 1.5 goal) years
2,757 (3,940 Total)[39] 3,914

Planned
Name Launch date Mission objectives Duration
JWST March 2021 To study atmospheres of known exoplanets and find some Jupiter-sized exoplanets 5 (+ 5 goal) years
PLATO 2026 (Soyuz-ST) To search for and characterize rocky planets around stars like our own. 4 (+4 goal) years
ARIEL 2028 (Ariane 6-2) Observe exoplanets using the transit method, study and characterise the planets' chemical composition and thermal structures 4 years
RST 2025 To search for and study exoplanets while studying dark matter. It is expected to find about 2,500 planets. 6 years

Proposed

Canceled
gollark: It can't stop you from writing an entirely valid and well-typed program which releases bees into the internet when you *meant* to write a fibonacci program.
gollark: I mean, the compiler can't know what you actually want.
gollark: Isn't that pretty much impossible?
gollark: ++delete bugs
gollark: How are you meant to get bugless code?!

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