Planetary transit variables

WASP-13, also named Gloas, is a star in the Lynx constellation. The star is similar, in terms of metallicity and mass, to the Sun, although it is hotter and most likely older. The star was first observed in 1997, according to the SIMBAD database, and was targeted by SuperWASP after the star was observed by one of the SuperWASP telescopes beginning in 2006. Follow-up observations on the star led to the discovery of planet Cruinlagh in 2008; the discovery paper was published in 2009.

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thumb | right | Comparative sizes of Earth, Kepler-18 b and [[Jupiter]] Kepler-18 is a star with almost the same mass as the Sun in the Cygnus constellation.

CoRoT-2 is a yellow dwarf main sequence star a little cooler than the Sun. This star is located approximately 700 light-years away in the constellation of Aquila. The apparent magnitude of this star is 12, which means it is not visible to the naked eye but can be seen with a medium-sized amateur telescope on a clear dark night.

star in the constellation Ophiuchus

XO-3 is a star away in the constellation Camelopardalis. The star has a magnitude of 10 and is not visible to the naked eye but is visible through a small telescope. A search for a binary companion star using adaptive optics at the MMT Observatory was negative.

Kepler-34 is an eclipsing binary star system in the constellation of Cygnus. Both stars have roughly the same mass as the Sun and, like the Sun, both are spectral class G. They are separated by 0.22 AU, and complete an eccentric (e=0.5) orbit around a common center of mass every 27 days.

Kepler-35 is a binary star system in the constellation of Cygnus. These stars, called Kepler-35A and Kepler-35B have masses of 89% and 81% solar masses respectively, and both are assumed to be of spectral class G. They are separated by 0.176 AU, and complete an eccentric orbit around a common center of mass every 20.73 days.

Kepler-223 (KOI-730, KIC 10227020) is a G8 star with an extrasolar planetary system discovered by the Kepler mission. Studies indicate that the Kepler-223 star system consists of 4 planets orbiting the star.

WASP-4 is a G-type main-sequence star approximately 891 light-years away in the constellation of Phoenix. Despite its advanced age, the star is rotating rapidly, being spun up by the tides raised by a giant planet on a close orbit.

XO-2 is a binary star system about away in the constellation Lynx. It consists of two components, XO-2N and XO-2S, both of which host planetary systems.

HAT-P-3, is a metal-rich K5 dwarf star located about 441 light-years away in the constellation Ursa Major. At a magnitude of about 11.5 it is not visible to the naked eye but is visible in a small to medium-sized amateur telescope. It is believed to be a relatively young star and has a slightly enhanced level of chromospheric activity.

thumb|alt=Comparative sizes of Sun and Kepler-15|Comparative sizes of Sun and Kepler-15 Kepler-15 (also known as KOI-128 or KIC 11359879 is a G-type subgiant with a mass of 1.018 solar masses and a radius of 1.253 solar radius.

TOI-700 is a red dwarf 101.4 light-years away from Earth located in the Dorado constellation that hosts TOI-700 d, the first Earth-sized exoplanet in the habitable zone discovered by the Transiting Exoplanet Survey Satellite (TESS).

__NOTOC__ XO-5, formally named Absolutno, is a likely binary star system, made up of a G-type dwarf and a red dwarf companion, located approximately 893 light-years away from Earth in the Lynx constellation. It has a magnitude of about 12 and cannot be seen with the naked eye but is visible through a small telescope.

K2-72 (also designated EPIC 206209135) is a cool red dwarf star of spectral class M2V located about away from the Earth in the constellation of Aquarius. It is known to host four planets, all similar in size to Earth, with one of them residing within the habitable zone.

HAT-P-6, also named Sterrennacht is a star in the constellation Andromeda, located approximately 895 light years or 274 parsecs away from the Earth. It is an F-type star, implying that it is hotter and more massive than the Sun. The apparent magnitude of the star is +10.54, which means that it can only be visible through the telescope. The absolute magnitude of +3.36 is brighter than the Sun's +4.83, meaning that the star itself is brighter than the Sun. A search for a binary companion star using adaptive optics at the MMT Observatory turned out negative.

star in the constellation Virgo

WASP-15, also named Nyamien, is a magnitude 11 star located about 935 light-years away in the constellation Centaurus. The star, which is more massive, larger, hotter, and more luminous than the Sun, is also less metal-rich than the Sun. WASP-15 has one known planet in its orbit, WASP-15b; the planet is a hot Jupiter with an anomalously high radius, a phenomenon which may be explained by the presence of an internal heat source. The star was first observed by the SuperWASP program in 2006; future measurements in 2007 and 2008, as well as follow-up observations and analysis, eventually led to th

WASP-19, formally named Wattle, is a magnitude 12.3 star about away, located in the Vela constellation of the Southern Hemisphere. This star has been found to host a transiting hot Jupiter-type planet in a tight orbit.

WASP-8 is a binary star system away. The star system is much younger than the Sun at 300 million to 1.2 billion years age, and is heavily enriched in heavy elements, having nearly twice the concentration of iron compared to the Sun.

Kepler-36 is a star in the constellation of Cygnus with two known planets. It has an anomalously large radius, meaning that it is a subgiant.

OGLE-TR-113 is a dim, distant magnitude 16 binary star in the star fields of the constellation Carina. Because of its distance of about 1,930 light years, and location in a crowded field it was not notable in any way. Its apparent brightness changes when one of its planets transits, so the star has been given the variable star designation V752 Carinae. Spectral type of the star is type K dwarf star, slightly cooler and less luminous than the Sun.

Kepler-107 is a star about away in the constellation Cygnus. No stellar companions were found as of 2016.

HAT-P-11, also designated GSC 03561-02092 and Kepler-3, is a metal-rich orange dwarf star with a planetary system, away in the constellation Cygnus. This star is notable for its relatively large rate of proper motion. The apparent magnitude of this star is about 9.6, which means it is not visible to the naked eye but can be seen with a medium-sized amateur telescope on a clear dark night. The age of this star is about 6.5 billion years.

WASP-3 is a triple star system located about away from the Sun in the constellation Lyra. The system has an apparent magnitude of 10. The brightest and most massive star of this system is WASP-3A, an F-type main sequence star which has one known transiting hot Jupiter exoplanet, WASP-3b. Since the planet transits the star, the star is classified as a planetary transit variable and has received the variable star designation V838 Lyrae.

Kepler-17 is a main-sequence yellow dwarf star that is much more active than the Sun with starspots covering roughly 6% of its surface. Starspots are long-lived, with at least one persisting for 1400 days. ==Planetary system== The Kepler-17 is known to host one superjovian exoplanet, Kepler-17b, in orbit around it. It was discovered by the transit method in 2011.

WASP-121, also known as CD-38 3220 and formally named Dilmun, is a magnitude 10.4 star located approximately away in the constellation Puppis. WASP-121 has a mass and radius similar to the Sun's. It hosts one known exoplanet. Due to the star's strongly titled rotational axis with a stellar inclination angle of 8.1°, the planet's orbit is almost polar.

thumb|left|A light curve showing the March 11, 2009 planet transit across OGLE-TR-132. Adapted from Adams et al. (2011) OGLE-TR-132 is a distant magnitude 15.72 star in the star fields of the constellation Carina. Because of its great distance, about 4,900 light-years, and location in the crowded field it was not notable in any way. Because its apparent brightness changes when one of its planets transits, the star has been given the variable star designation V742 Carinae. The spectral type of the star is type F. A yellow-white, very metal-rich subgiant, it is slightly hotter and more luminous

XO-4 is a star located approximately 863 light-years away from Earth in the Lynx constellation. It has a magnitude of about 11 and cannot be seen with the naked eye but is visible through a small telescope. A search for a binary companion star using adaptive optics at MMT Observatory was negative.

WASP-14 or BD+22 2716 is a star 524 light-years away in the constellation Boötes. It hosts a transiting planet discovered by the SuperWASP project. There is a companion star at a separation of .

= 7.73, and the Sun, \scriptstyle M_{V_{\odot = 4.83, the visual luminosity of Kepler-442 is calculated from: \scriptstyle \frac{L_{V_{\ast}{L_{V_{\odot} = 10^{0.4\left(M_{V_{\odot - M_{V_{\ast\right)} | age_gyr =

OGLE-TR-211 is a magnitude 15 star located about 6,000 light years away in the constellation of Carina.

K2-3, also known as EPIC 201367065, is a red dwarf star with three known planets. It is on the borderline of being a late orange dwarf/K-type star, but because of its temperature, it is classified as a red dwarf (4,000 K is typically the division line between spectral class M and K).

Kepler-46, previously designated KOI-872, is a star located in the constellation Lyra. Observed since 2009 by the Kepler space observatory, it has since been found to possess a planetary system consisting of at least three planets and while it has a similar mass to the Sun (90%) it is significantly older at ten billion years.

Kepler-26 is a star in the northern constellation of Lyra. It is located at the celestial coordinates: Right Ascension Declination . With an apparent visual magnitude of 15.5, this star is too faint to be seen with the naked eye. ==Planetary system== The two planets, Kepler-26b and Kepler-26c, were discovered by transit method in late 2011, and classified as small (sub-Neptune) gas giants in 2016. In 2012, the planetary candidate Kepler-26d was also detected, and confirmed in 2014. The planet Kepler-26e was discovered on a much wider orbit in 2014.

WASP-10 is a star 461 light-years away in the constellation Pegasus. It hosts a transiting planet discovered by the SuperWASP project.

Kepler-1520 (initially published as KIC 12557548) is a K-type main-sequence star located in the constellation Cygnus. The star is particularly important, as measurements taken by the Kepler spacecraft indicate that the variations in the star's light curve cover a range from about 0.2% to 1.3% of the star's light being blocked. This indicates that there may be a rapidly disintegrating planet, a prediction not yet conclusively confirmed, in orbit around the star, losing mass at a rate of 1 Earth mass every billion years. The planet itself is about 0.1 Earth masses, or just twice the mass of Merc

WASP-16 is a magnitude 11 yellow dwarf main sequence star, with characteristics similar to the Sun, located 628 light-years away in the Virgo constellation.

Kepler-68 is a Sun-like main sequence star located away in the constellation Cygnus. It is known to have at least four planets orbiting around it. The third planet has a mass similar to Jupiter but orbits within the habitable zone.

Kepler-25 is a star in the northern constellation of Lyra. It is slightly larger and more massive than the Sun, with a luminosity 2 times that of the Sun. With an apparent visual magnitude of 10.6, this star is too faint to be seen with the naked eye. thumb|

Kepler-102 is a star away in the constellation of Lyra. Kepler-102 is less luminous than the Sun. The star system does not contain any observable amount of dust. Kepler-102 is suspected to be orbited by a binary consisting of two red dwarf stars, at projected separations of 591 and 627 AU.

WASP-49 is a binary star system about away in the constellation Lepus. The two stars are separated by 443 AU. The primary is a G-type main-sequence star, with a surface temperature of . WASP-49 is depleted of heavy elements relative to the Sun. It has a metallicity Fe/H index of –0.23, meaning it has 59% the iron level of the Sun.

WASP-47 is a star similar in size and brightness to the Sun about 881 light-years away in the constellation Aquarius. It lies within the Kepler K2 campaign field 3. It was first noticed to have a hot Jupiter exoplanet orbiting every 4 days in 2012 by the Wide Angle Search for Planets (WASP) team. While it was thought to be a typical hot Jupiter system, three more planets were found in 2015: an outer gas giant within the habitable zone, a hot Neptune exterior to the hot Jupiter's orbit and a super-Earth interior to the hot Jupiter's orbit. WASP-47 is the only planetary system known to have both

REDIRECT List of exoplanets discovered between 2000–2009

Kepler-28 is an M-type main-sequence star about away in the northern constellation of Cygnus. With an apparent visual magnitude of 15.036, this star is too faint to be seen with the naked eye. It is orbited by two exoplanets.

HAT-P-8 is a magnitude 10 star located 700 light-years away in Pegasus. It is a F-type star about 28% more massive than the Sun. Two red dwarf companions have been detected around HAT-P-8. The first has a spectral type of M5V and has a mass of . The second is even less massive, at , and its spectral type is M6V.

Kepler-88 is a G-type star away in the constellation of Lyra, with three confirmed exoplanets. SIMBAD lists a subgiant spectral type of G8IV, while other sources give it a main sequence spectral type of G6V. The latter is more consistent with its properties (it is less luminous than the Sun).

HAT-P-5 is a 12th magnitude star in the constellation Lyra, approximately 1,000 light years away from Earth. It is a spectral type G star, about 1.16 solar masses and radii greater than the Sun, and only 200 kelvins hotter. It is estimated to be 2.6 billion years old.

Kepler-30 is a star in the northern constellation of Lyra. It is located at the celestial coordinates: Right Ascension Declination . With an apparent visual magnitude of 15.5, this star is too faint to be seen with the naked eye. Kepler-30 is exhibiting a strong starspot activity.

Kepler-14 is a binary star system targeted by the Kepler spacecraft. It is host to one known planet: the Jupiter-like Kepler-14b. The star system was identified by Kepler as a possible planetary host, but when imaging revealed that Kepler-14 was a binary star system and not a single star, the confirmation process became protracted. The stars are separated by at least 280 AU, and the stars complete an orbit around a common center of mass every 2800 years. Both stars are larger than the Sun. They are of similar absolute magnitudes; however, the primary star is brighter as seen from Earth.

Kepler-78 (formerly known as KIC 8435766) is a 12th magnitude star away in the constellation Cygnus. Initially classified as an eclipsing binary with orbital period 0.710015 days, it was later re-classified as a single star with significant interaction between star magnetosphere and close-in planet. The radius of the star is of about 74% of the Sun, and the effective temperature is about .

thumb | right | alt=Comparative sizes of Sun and Kepler-24. | Comparative sizes of Sun and Kepler-24. Kepler-24 is a star in the northern constellation of Lyra. It is located at the celestial coordinates: Right Ascension , Declination . With an apparent visual magnitude of 15.5, this star is too faint to be seen with the naked eye.

Kepler-89 is a star with four confirmed planets. Kepler-89 is a possible wide binary star.

HAT-P-15 is a G-type main-sequence star about 630 light-years away. The star is older than Sun yet has a concentration of heavy elements roughly 190% of solar abundance. The star has no noticeable starspot activity.

Star with 5 planets

PH2, also known as Kepler-86, or KIC 12735740 (2MASS J19190326+5157453), is an F-type main-sequence star distant within the constellation Cygnus. Roughly the size and temperature of the Sun, PH2 gained prominence when it was known to be the host of one of 42 planet candidates detected by the Planet Hunters citizen science project in its second data release. The candidate orbiting around PH2, known as PH2b, had been determined to have a spurious detection probability of only 0.08%, thus effectively confirming its existence as a planet.

Kepler-40, formerly known as KOI-428, is an F-type star in the constellation Cygnus. Kepler-40 is known to host at least one planet, Kepler-40b. The star is approximately 1.5 times more massive than the Sun, and is over two times its size; it was, at upon its discovery, the largest yet discovered with a transiting planet in its orbit. Kepler-40 was first noted as home to a possible transiting object by the Kepler spacecraft; the data on the system was released to the public. A team of French and Swiss scientists used follow-up data to determine the existence of the Hot Jupiter planet Kepler-40

Kepler-23 is a G-type main-sequence star about away in the northern constellation of Cygnus, the swan. With an apparent visual magnitude of 13.5, it is too faint to be seen with the naked eye. This star is similar in mass and temperature to the Sun, but is larger and more luminous. Kepler-23 is orbited by three known exoplanets.