Wide Angle Search for Planets

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SuperWASP
Sw8cams.jpg
SuperWASP-South cameras on Optical Mechanics, Inc. equatorial mount
Alternative namesWide Angle Search for Planets OOjs UI icon edit-ltr-progressive.svg
Location(s)Spain, South Africa OOjs UI icon edit-ltr-progressive.svg
Coordinates 28°45′37″N17°52′45″W / 28.7602°N 17.8793°W / 28.7602; -17.8793 OOjs UI icon edit-ltr-progressive.svg
Telescope style astronomical survey   OOjs UI icon edit-ltr-progressive.svg
ReplacedWASP exoplanets  OOjs UI icon edit-ltr-progressive.svg
Website wasp-planets.net OOjs UI icon edit-ltr-progressive.svg
  Commons-logo.svg Related media on Commons

WASP or Wide Angle Search for Planets is an international consortium of several academic organisations performing an ultra-wide angle search for exoplanets using transit photometry. The array of robotic telescopes aims to survey the entire sky, simultaneously monitoring many thousands of stars at an apparent visual magnitude from about 7 to 13. [1]

Contents

WASP is the detection program composed of the Isaac Newton Group, IAC and six universities from the United Kingdom. The two continuously operating, robotic observatories cover the Northern and Southern Hemisphere, respectively. SuperWASP-North is at Roque de los Muchachos Observatory on the mountain of that name which dominates La Palma in the Canary Islands. WASP-South is at the South African Astronomical Observatory, Sutherland in the arid Roggeveld Mountains of South Africa. These use eight wide-angle cameras that simultaneously monitor the sky for planetary transit events and allow the monitoring of millions of stars simultaneously, enabling the detection of rare transit events. [2]

Instruments used for follow-up characterization employing doppler spectroscopy to determine the exoplanet's mass include the HARPS spectrograph of ESO's 3.6-metre telescope as well as the Swiss Euler Telescope, both located at La Silla Observatory, Chile. [3] WASP's design has also been adopted by the Next-Generation Transit Survey. [4] As of 2016, the Extrasolar Planets Encyclopaedia data base contains a total of 2,107 extrasolar planets of which 118 were discoveries by WASP. [5]

Equipment

WASP consists of two robotic observatories; SuperWASP-North at Roque de los Muchachos Observatory on the island of La Palma in the Canaries and WASP-South at the South African Astronomical Observatory, South Africa. Each observatory consists of an array of eight Canon 200 mm f1.8 lenses backed by high quality 2048 x 2048 science grade CCDs, the model used is the iKon-L [6] manufactured by Andor Technology. [7] The telescopes are mounted on an equatorial telescope mount built by Optical Mechanics, Inc. [8] The large field of view of the Canon lenses gives each observatory a massive sky coverage of 490 square degrees per pointing. [9]

Function

The observatories continuously monitor the sky, taking a set of images approximately once per minute, gathering up to 100 gigabytes of data per night. By using the transit method, data collected from WASP can be used to measure the brightness of each star in each image, and small dips in brightness caused by large planets passing in front of their parent stars can be searched for.

One of the main purpose of WASP was to revolutionize the understanding of planet formation, paving the way for future space missions searching for 'Earth'-like worlds.

Structure

WASP is operated by a consortium of academic institutions which include:

WASP-39b and its parent star (artist's impression). Wasp-39b and its parent star (artist's impression).jpg
WASP-39b and its parent star (artist's impression).

On 26 September 2006, the team reported the discovery of two extrasolar planets: WASP-1b (orbiting at 0.038  AU (6 million km) from star once every 2.5 days) and WASP-2b (orbiting three-quarters that radius once every 2 days). [11]

On 31 October 2007, the team reported the discovery of three extrasolar planets: WASP-3b, WASP-4b and WASP-5b. All three planets are similar to Jovian mass and are so close to their respective stars that their orbital periods are all less than two days. These are among the shortest orbital periods discovered. The surface temperatures of the planets should be more than 2000 degrees Celsius, owing to their short distances from their respective stars. The WASP4b and WASP-5b are the first planets discovered by the cameras and researchers in South Africa. WASP-3b is the third planet discovered by the equivalent in La Palma.

In August 2009, the discovery of WASP-17b was announced, believed to be the first planet ever discovered to orbit in the opposite direction to the spin of its star, WASP-17.

Discoveries and follow-up observations

Star Constellation Right
ascension
Declination App.
mag.
Distance (ly) Spectral
type
Planet Mass
(MJ)
Radius
(RJ)
Orbital
period

(d)
Semimajor
axis

(AU)
Orbital
eccentricity
Inclination
(°)
Discovery
year
WASP-1 Andromeda 00h 20m 40s+31° 59 2411.791031F7V b 0.861.4842.51994640.0382088.652006
WASP-2 Delphinus 20h 30m 54s+06° 25 4611.98493K1V b 0.8471.0792.152221440.03138084.732006
WASP-3 Lyra 18h 33m 32s+35° 39 4210.64727F7V b 2.061.4541.84683720.0313085.062007
WASP-4 Phoenix 23h 34m 15s−42° 03 4112.6851G7V b 1.12151.3631.338231870.02312088.82007
WASP-5 Phoenix 23h 57m 24s−41° 16 3812.26967G4V b 1.581.091.62842960.02683085.82007
WASP-6 Aquarius 23h 12m 37s−22° 40 0612.41001G8V b 0.51.33.360.02690.05488.472008
WASP-7 Microscopium 20h 44m 10s−39° 13 319.51460F5V b 0.960.9154.9546580.0618089.62008
WASP-8 Sculptor 23h 59m 36.07s−35° 01 52.99.9160G6 b 2.231.178.160.07930.308288.522008
c 9.4543235.2802014
WASP-10 Pegasus 23h 15m 58s+31° 27 4612.7290K5 b 3.061.083.09276160.03710.05786.82008
WASP-11/HAT-P-10 Perseus 03h 09m 29s+30° 40 2511.89408K3V b 0.4601.0453.72246900.0439088.52008
WASP-12 Auriga 06h 30m 32.794s+29° 40 20.2911.7871G0V b 1.4041.7361.09142220.022930862008
WASP-13 Lynx 09h 20m 24.71s+33° 52 57.010.7509G1V b 0.4851.3654.3530110.05379085.642008
WASP-14 Boötes 14h 33m 06s+21° 53 419.75520F5V b 7.7251.2592.24377040.0370.090384.792008
WASP-15 Hydra 13h 55m 42.71s−32° 09 34.610.91005F5 b 0.541.163.750.0472085.52008
WASP-16 Virgo 14h 18m 43.92s−20° 16 31.811.3520G3V b 0.8551.0083.120.0421085.222009
WASP-17 Scorpius 15h 59m 51s−28° 03 4211.61000F6 b 0.4861.9913.7354380.05150.02886.832009
WASP-18 Phoenix 01h 37m 24.95s−45° 40 40.89.29330F9 b 10.31.1060.941452990.020260.0092862009
WASP-19 Vela 09h 43m 40.077s−45° 39 33.0612.3815G8V b 1.1681.3860.788840.016550.004679.42009
WASP-20  [ fr ] Cetus 00h 20m 38.53s−23° 56 08.610.7685F9 b 0.311.4594.90.0600385.572011
WASP-21 Pegasus 23h 09m 58.23s+18° 23 46.011.6750G3V b 0.31.214.3225060.052087.292010
WASP-22 Eridanus 03h 31m 16.32s−23° 49 11.012.0980G1 b 0.5881.1583.53273130.04698088.262010
WASP-23 Puppis 06h 44m 31s−42° 45 4312.7671.1K1V b 0.8840.9622.94442560.0376< 0.06288.392010
WASP-24 Virgo 15h 08m 51.72s+02° 20 36.111.31080F8-9 b 1.031.102.3410.0359085.712010
WASP-25 Hydra 13h 01m 26.36s−27° 31 20.011.9550G4 b 0.581.263.7650.0487087.72010
WASP-26 Cetus 00h 18m 24.70s−15° 16 02.311.3815G0 b 1.0281.2812.75660040.03985082.912010
WASP-27/HAT-P-14 Hercules 17h 20m 27.8s+38° 14 31.910731.2F5 b 2.441.1014.60.0600.107484.11672010
WASP-28  [ ru ] Pisces 23h 34m 27.87s−01° 34 48.1121090F8 b 1.120.913.4090.04550.04688.612010
WASP-29 Phoenix 23h 51m 31.08s−39° 54 24.211.3260K4V b 0.250.743.9230.0456087.962010
WASP-31  [ ru ] Crater 11h 17m 45s−19° 03 1711.71305F b 0.4781.5373.4059090.04657084.542010
WASP-32 Pisces 00h 15m 51s+01° 12 0211.3G b 3.61.182.718650.03940.01885.32010
WASP-33 Andromeda 02h 26m 51.05s+37° 33 01.78.3378A5 b < 4.591.4381.219869670.02558087.672010
WASP-34 Crater 11h 01m 36s−23° 51 3810.4391G5 b 0.591.224.31767820.05240.03885.22010
WASP-35 Eridanus 5h 4m 19.63s−6° 13 47.3610.94663G0V b 0.721.323.1615750.04317087.962011
WASP-36 Hydra 08h 45m 19.0s−08° 01 3712.71468G2 b 2.2791.2691.537370.0262483.652010
WASP-37 Virgo 14h 47m 46.62s+01° 03 53.412.71102G2 b 1.6961.1363.5774710.04339088.782010
WASP-38 Hercules 16h 15m 50s+10° 01 579.42359F8 b 2.7121.0796.8718150.075510.032188.692010
WASP-39  [ ru ] Virgo 14h 29m 18s−03° 26 4012.11750G8 b 0.281.274.0552590.0486087.832011
WASP-40/HAT-P-27 Virgo 14h 51m 04.25s+05° 56 50.412.21665G8 b 0.661.0553.03957210.04030.07884.982011
WASP-41 Centaurus 12h 42m 28.51s−30° 38 23.511.6587G8V b 0.921.213.0523940.04087.32010
c 421.01.070.2942015
WASP-42 12h 51m 55.62s−42° 04 25.212.57K1 b 0.51.084.981690.04580.0688.252011
WASP-43 Sextans 10h 19m 38s−09° 48 2312.4K7V b 1.780.930.8134750.0142082.62011
WASP-44 Cetus 00h 15m 37s−11° 56 1712.9G8V b 0.8891.142.42380390.03473086.022011
WASP-45 Sculptor 00h 20m 57s−35° 59 5412K2V b 1.0071.163.12608760.04054084.472011
WASP-46 Indus 21h 14m 57s−55° 52 1812.9G6V b 2.1011.311.430370.02448082.632011
WASP-47 Aquarius 20h 40m 09.16s−00° 52 15.011.9652G9V b 1.141.154.159140.052089.322011
c 1.31596.01.410.2887.02015
d 0.04280.3319.03040.0880.00789.222015
e 0.0290.1670.789610.01730.0386.22015
WASP-48 Cygnus 19h 24m 39s+55° 28 2311.06F/G b 0.981.672.1436340.03444080.092011
WASP-49A Canis Major 06h 04m 21.47s−16° 57 55.111.36G6 b 0.3781.1152.7817484.892011
WASP-50 Eridanus 02h 54m 45s−10° 53 5311.6750G9 b 1.4681.1531.95509590.029450.00984.742011
WASP-51/HAT-P-30 Draco 08h 15m 48s+05° 50 1210.36629F9 b 0.7111.342.8105950.04190.03583.62011
WASP-52 Pegasus 23h 13m 59.0s+08° 45 4112457K2V b 0.461.271.7497885.352011
WASP-53 Cetus 2h 7m 38.22s−20° 39 4311.0766K3 b 0.0941.23.310.04101-87.082011
WASP-54 Virgo 13h 41m 49.03s−00° 07 4110.42F9V/IV b 0.61.43.72011
WASP-55 Virgo 08h 15m 48s+05° 50 1211.81076 b 0.571.34.465630.053389.22011
WASP-56 Triangulum 02h 13m 27.90s+23° 30 20.211.48G6 b 0.61.24.62011
WASP-57 Libra 14h 55m 16.84s−02° 03 27.513.341483G6 b 0.81.12.82011
WASP-58 Lyra 18h 18m 48.0s+45° 10 1911.66978G2V b 0.891.375.017180.056187.42011
WASP-59 Pegasus 23h 18m 30.0s+24° 53 2113408K5V b 0.8630.7757.919590.06970.12011
WASP-60 Pegasus 23h 15m 58s+31° 27 4612.181305G1V b 0.50.864.3050.0531087.92011
WASP-61 Lepus 05h 01m 12.0s−26° 03 1512.51566F7 b 2.061.243.85590.051489.352011
WASP-62 Dorado 05h 48m 34.0s−63° 59 1810.31566F7 b 0.571.394.411950.056788.32011
WASP-63 Columba 06h 17m 21.0s−38° 19 2411.21076G8 b 0.381.434.378090.57487.82011
WASP-64 Canis Major 6h 44m 28s−32° 51 3012.291141G7 b 1.2171.2441.573290.02640.0486.72011
WASP-65  [ ru ] Cancer 08h 53m 18s+08° 31 2311.91010G6 b 1.551.1122.31142430.0334-2011
WASP-66 Antlia 10h 32m 54.0s−34° 59 2311.61239F4 b 2.321.394.086050.054685.92011
WASP-67 Sagittarius 19h 42m 59.0s−19° 56 5812.5734K0V b 0.421.44.614420.051785.82011
WASP-68  [ ru ] Sagittarius 20h 20m 22.98s−19° 18 52.910.7G0 b 0.951.245.082011
WASP-69 Aquarius 21h 0m 6s−5° 5 40K5 b  [ fr ]0.261.063.86813820.04525086.72011
WASP-70A Aquarius 21h 01m 54s−13° 26 0010.8799G4 b 0.591.163.7130.0485< 0.067-2011
WASP-71 Cetus 01h 57m 03.0s00° 45 3210.57652F8 b 2.2581.52.9036784.22012
WASP-72 Fornax 00h 10m 56.6s−30° 10 099.6F7 b 1.54611.272.216740.037082013
WASP-73  [ ru ] Indus 21h 19m 47.91s−58° 08 5610.5F9 b 1.881.164.0870.055142013
WASP-74 Aquila 20h 18m 10.0s−01° 04 339.7391F9 b 0.8261.4042.13774450.034430.079.862014
WASP-75 Cetus 01h 31m 18.2s−10:40:32°11.45848F9 b 1.071.272.484190.0375822013
WASP-76 Pisces 01h 46m 32.0s02° 42 029.5390F7 b 0.921.831.809890.033882013
WASP-77A Cetus 02h 28m 37.0s−07° 03 3811.29G8V b 1.761.211.3600389.42012
WASP-78 Eridanus 04h 15m 02.0s−22° 06 5912.01794F8 b 1.161.752.175180.0415892012
WASP-79 Eridanus 04h 25m 29.0s−30° 36 0210.1783F3 b 0.891.72.175180.036283.22012
WASP-80 Aquila 20h 12m 40.0s−02° 08 4411.88196K7V b 0.5540.9523.067850.03460.0789.922013
WASP-82 Orion 04h 50m 39s+01° 53 3810.1650F5 b 1.241.672.705780.044787.92013
WASP-83 Corvus 12h 40m 37.0s−19° 17 0312.9978G8 b 0.31.044.0712520.0590.088.92014
WASP-84 Hydra 08h 44m 26s+01° 50 36390K0 b 0.6940.9428.523490.077188.3682013
WASP-85A Virgo 11h 43m 38.1s+06° 33 49.411.2407±260G5 b 1.091.442.660.1138~089.722014
WASP-86 Hercules 17h 50m 33.7s+36° 34 1310.66F7 b 0.951.795.03161440.06170.084.452016
WASP-87 A Centaurus12h 21m 17.92s−52° 50 27.610.7780F5 b 2.181.3851.68279500.0294681.072014
WASP-88 Indus 20h 38m 02.7s−48° 27 43.211.4F6 b 0.561.74.9540.064322013
WASP-89 Capricornus 20h 55m 36.0s−18° 58 1613.1K3 b 5.91.043.35642270.04270.19389.42014
WASP-90 Equuleus 21h 02m 08s+07° 03 2411.71100F6 b 0.631.633.916240.056282.12013
WASP-91 Tucana 23h 51m 23.0s−70° 09 1012.0K3 b 1.341.032.7985810.0370.086.82017
WASP-92 Hercules 16h 26m 46.1s+51° 02 2813.181729F7 b 0.8051.4612.17467420.03480.083.752016
WASP-93 Cassiopeia 00h 37m 50.0s+51° 17 2010.97815F4 b 1.471.5972.73253210.0421181.182016
WASP-94A Microscopium 20h 55m 07.94s−34° 08 07.910.1587F8 b 0.4451.723.950.055<0.1388.72014
WASP-94B Microscopium 20h 55m 09.16s−34° 08 07.910.5587F9 b ≥0.6172.0080.03352014
WASP-95 Grus 21h 02m 08s−48° 00 1110.1G2 b 1.131.212.184670.0341688.42013
WASP-96 Phoenix 00h 04m 11s−47° 21 3812.2G8 b 0.481.23.425260.045385.62013
WASP-97 Eridanus 01h 38m 25s−55° 46 1910.6G5 b 1.321.132.072760.03303882013
WASP-98 Eridanus 03h 53m 42s−34° 19 4213.0G7 b 0.831.12.962640.03686.32013
WASP-99 Eridanus 02h 39m 35s−50° 00 299.5F8 b 2.781.15.752510.071788.82013
WASP-100 Reticulum 04h 35m 50s−64° 01 3710.8F2 b 2.031.692.849380.045782.62013
WASP-101 Canis Major 06h 33m 24s−23° 29 1010.3F6 b 0.51.413.585720.0506852013
WASP-102 Pegasus 22h 25m 51.4s15° 51 2412.73G0 b 0.6241.2592.7098130.040189.732016
WASP-103 Hercules 16h 37m 15.5s+07° 11 00.0712.1F8 b 1.491.530.9250.0198586.32014
WASP-104 Leo 10h 42m 24.61s+07° 26 6.311.12466G8 b 1.2721.1371.75541370.0291883.632014
WASP-105 Phoenix 01h 36m 40.0s−50° 39 3212.10K2 b 1.80.967.872880.0750.089.72017
WASP-106 Leo 11h 05m 43.13s−05° 04 45.911.21923F9 b 1.9251.0859.2897150.091789.492014
WASP-107  [ ru ] Virgo 12h 33m 32.85s−10° 8 46.1411.6208.7K6V b 0.120.945.721490.055--2017
WASP-108 Centaurus 13h 03m 19s−49° 38 2311.2717F9 b 1.1671.2152.67554630.039788.492014
WASP-109 Libra 15h 28m 13.0s−16° 24 3911.41076F4 b 0.911.4433.31902330.046384.282014
WASP-110 Sagittarius 20h 23m 30s−44° 03 3012.31043G9 b 0.5151.2383.77839770.045788.062014
WASP-111 Capricornus 21h 55m 04s−22° 36 4510.3684F5 b 1.831.4422.3109650.0391481.612014
WASP-112  [ ru ] Piscis Austrinus 22h 37m 57s−35° 09 1413.31337G6 b 0.881.1913.03539920.038288.682014
WASP-113 Boötes 14h 59m 29.0s+46° 57 3611.801174G1 b 0.4751.4094.542168745380.058850.086.462016
WASP-114 Pegasus 21h 50m 40.0s10° 27 4712.741500G0 b 1.7691.3391.54877430.028510.01283.962016
WASP-117  [ ru ]02h 27m 06.09s−50° 17 04.310.15F9V b 0.27551.02110.021650.094590.30289.142014 [12]
WASP-118 Pisces 01h 18m 12.0s02° 42 1011.02815F6 b 0.5141.444.04604350.0545388.72016
WASP-119 Reticulum 03h 43m 46.0s−65° 11 3812.21086G5 b 1.231.42.499790.03630.05885.02016
WASP-120 Horologium 04h 10m 28.0s−45° 53 5411F5 b 5.061.5153.61127060.05220.05982.292015
WASP-121 Puppis 7h 10m 24.0595s−39° 5 50.56211.0850F6V b 1.1841.811.2750.02544087.62015
WASP-122 Puppis 07h 13m 12.0s−42° 24 3511.0G4 b 1.4011.7921.71005670.031070.078.352015
WASP-123 Sagittarius 19h 17m 55.0s−32° 51 3611.1G5 b 0.921.3272.9776410.04310.085.792015
WASP-124 Piscis Austrinus 22h 10m 51.0s−30° 44 5812.71412F9 b 0.61.243.372650.04990.01786.32016
WASP-126 Hydrus 04h 13m 30.0s−69° 13 3710.8763G2 b 0.28410.963.28880.04490.1887.92016
WASP-127  [ ru ] Sextans 10h 42m 14.08s−03° 50 6.2610.2522G5 b 0.181.374.178060.0520-2016
WASP-128 Centaurus 11h 31m 26.1s−41° 41 2212.51376G0V b 37.190.9372.208836650.03590.089.12018
WASP-129 Centaurus 11h 45m 12.0s−42° 03 5012.3802G1 b 1.00.935.7481450.06280.09687.72016
WASP-130 Centaurus 13h 32m 5.0s−42° 28 3111.1587G6 b 1.230.8911.550980.10120.088.662016
WASP-131 Centaurus 14h 00m 46.0s−30° 35 0110.1815G0 b 0.271.225.3220230.06070.085.02016
WASP-132 Lupus 14h 30m 26.0s−46° 09 3312.4391K4 b 0.410.877.1335210.0670.089.62016
WASP-133 Microscopium 20h 58m 18.0s−35° 47 4812.91491G4 b 1.161.212.1764230.03450.1787.02016
WASP-134 Pegasus 21h 50m 17.0s04° 11 4011.3636G4 b 1.4120.98810.14675830.09560.144789.132018
c 70.010.1732018
WASP-135 Hercules 17h 49m 08.0s+29° 52 4513.3978G5 b 1.91.31.40137940.02430.082.02015
WASP-136  [ ru ] Cetus 0h 1m 18.17s−8° 55 34.610.39906F5 b 1.511.385.220.0661084.72016
WASP-137 Cetus 01h 43m 29.0s−14° 08 5711801G0 b 0.6811.273.90802840.05190.1484.592018
WASP-138 Cetus 2h 46m 33.37s−0° 27 5012.28F9 b 1.221.093.60.0494088.52016 [13]
WASP-139 Eridanus 03h 18m 15.0s−41° 18 0812.4750K0 b 0.1170.85.9242620.0620.088.92016
WASP-140 Eridanus 01h 38m 25.0s−55° 46 1911.1587K0 b 2.441.442.23598350.03230.04783.32016
WASP-141 Eridanus 04h 47m 18.0s−17° 06 5512.41859F9 b 2.691.213.3106510.04690.087.62016
WASP-142 Hydra 09h 23m 23.0s−23° 56 4612.32740F8 b 0.841.532.0528680.03470.080.22016
WASP-143 Hydra 09h 22m 02.0s+02° 55 5712.61115G1 b 0.7251.2343.7788730.0490.000789.0-
WASP-144 Microscopium 21h 23m 03.0s−40° 02 5412.9K2V b 0.440.852.27831520.03160.086.92018
WASP-145A Indus 21h 29m 01.0s−58° 50 1011.5K2V b 0.890.90.02610.083.32018
WASP-146 Cetus 23h 56m 22.0s−13° 16 1812.901373G0 b 1.111.2283.3969440.04510.1583.962018
WASP-147 Aquarius 23h 56m 46.0s−22° 09 1112.311389G4 b 0.2751.1154.602730.05490.087.92018
WASP-148 Hercules 16h 56m 31.0s+44° 18 0912.00809 b  [ id ]0.290.728.803810.08450.2289.82020
c 34.5160.210.3592020
WASP-150 Draco 17h 37m 03.0s+53° 01 1612.001748 b 8.461.075.6442070.06940.377584.012020
WASP-151 Pisces 23h 16m 15.2s00° 18 2412.91566G1 b 0.311.134.5334710.0550.089.22017
WASP-152 Taurus 04h 10m 41.0s24° 24 0712.56603G7V b 0.731.193.25883210.042170.06686.6562016
WASP-153 Lyra 18h 37m 03.0s+40° 01 0712.81402 b 0.391.553.3326090.0480.084.12017
WASP-156 Cetus 02h 11m 07.6s+02° 25 0511.6457K3 b 0.1280.513.8361690.04530.089.12017
WASP-157  [ ru ] Virgo 13h 26m 37.25s−8° 19 3.2212.911545G2V b 0.5761.0453.95162050.05290-2016
WASP-158 Cetus 00h 16m 35.0s−10° 58 3512.1F6V b 2.791.070.05170.087.72018
WASP-159 Caelum 04h 32m 33.0s−38° 58 0612.8-F9 b 0.551.383.8404010.05380.088.12018
WASP-160B Columba 05h 50m 43.1s−27° 37 2313.09-K0V b 0.2811.0933.7684950.04550.089.022018
WASP-161 Hydra 08h 25m 21.1s−11° 30 0411.09F6 b 2.491.1435.40604250.067389.012018
WASP-162 Crater 11h 13m 10.0s−17° 39 2812.2K0 b 5.21.09.624680.08710.43489.32018
WASP-163 Ophiuchus 17h 06m 09.0s−10° 24 4712.54G8 b 1.871.2021.60968840.026685.422018
WASP-164 Tucana 22h 59m 29.6s−60° 26 5212.62G2V b 2.131.1281.77712550.028180.082.732018
WASP-165 Aquarius 23h 50m 19.3s−17° 04 3912.69-G6 b 0.6581.263.4655090.048230.084.92018
WASP-166 Hydra 09h 39m 30.0s−20° 58 579.36369F9 b 0.1020.635.4435260.06420.087.82018
WASP-167  [ ru ] Centaurus 13h 4m 10.53s−35° 32 58.2810.51430F1V b 8.0-2.02195910.0365--2017
WASP-168 Puppis 06h 26m 59.0s−46° 49 1711.0F9V b 0.421.54.1536580.05190.084.42018
WASP-169 Hydra 08h 29m 33.0s−12° 56 4112.22081 b 0.5611.3045.61141180.06810.087.92019
WASP-170 Pyxis 09h 01m 39.9s−20° 43 1412.79G1 b 1.61.0962.344780220.033784.872018
WASP-171 Centaurus 11h 27m 23.0s−44° 05 19132524 b 1.0840.9883.81862440.05040.088.32019
WASP-172 Centaurus 13h 17m 44.0s−47° 14 1511.0-F1V b 0.471.575.4774330.06940.086.72018
WASP-173A Sculptor 23h 36m 40.0s−34° 36 4111.3G3 b 3.691.21.386653180.02480.085.22018
WASP-175 Hydra 11h 05m 17.0s−34° 07 20121905 b 0.991.2083.06529070.0440.085.332019
WASP-176 Delphinus 20h 54m 45.0s+09° 10 4512.001885 b 0.8551.5053.8990520.05350.086.72020
WASP-177 Aquarius 22h 19m 11.0s−01° 50 0411.6581K2 b 0.5081.583.0717220.0395784.142019
WASP-178 Lupus 15h 09m 05.0s−42° 42 189.951363A1IV-V b 1.661.813.34482850.05580.085.72019
WASP-181 Pisces 01h 47m 10.0s03° 07 5910.01445G2 b 0.2991.1844.51950640.0542788.382019
WASP-182 Microscopium 20h 46m 42.0s−41° 49 15121080 b 0.1480.853.37698480.04510.083.882019
WASP-183 Leo 10h 55m 09.0s−00° 44 1412.761070G9/K0 b 0.5021.474.11177710.0463285.372019
WASP-184 Centaurus 13h 58m 04.0s−30° 20 5312.92087F1V b 0.571.335.18170.06270.086.92019
WASP-189 Libra 15h 02m 44.9s−03° 01 536.60323A6IV-V b 2.131.3742.7240330.04970.084.3212018

1SWASP J140747.93-394542.6 b

The discovery of the J1407 system and its unusual eclipses were first reported by a team led by University of Rochester astronomer Eric Mamajek in 2012. [15] The existence and parameters of the ring system around the substellar companion J1407b were deduced from the observation of a very long and complex eclipse of the previously anonymous star J1407 during a 56-day period during April and May 2007. [15] [16] The low-mass companion J1407b has been referred to as a "Saturn on steroids" [17] [18] or "Super Saturn" [19] due to its massive system of circumplanetary rings with a radius of approximately 90 million km (0.6 AU). [20] The orbital period of the ringed companion J1407b is estimated to be around a decade (constrained to 3.5 to 13.8 years), and its most probable mass is approximately 13 to 26 Jupiter masses, but with considerable uncertainty. [20] The ringed body can be ruled out as being a star with mass of over 80 Jupiter masses at greater than 99% confidence. [20] The ring system has an estimated mass similar to that of the Earth. [21] A gap in the ring system at about 61 million km (0.4 AU) from its centre is considered to be indirect evidence of the existence of an exomoon with mass up to 0.8 Earth masses. [20]

See also

Other extrasolar planet search projects

Extrasolar planet searching spacecraft

Related Research Articles

WASP-5 is a magnitude 12 G-type main-sequence star located about 1,020 light-years away in the Phoenix constellation. The star is likely older than the Sun, slightly enriched in heavy elements and is rotating rapidly, being spun up by the tides raised by the giant planet on a close orbit.

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

WASP-79b, also known as Pollera, is an extrasolar planet orbiting the star CD-30 1812. This planet is in the constellation Eridanus, and is about 810 light-years from Earth.

WASP-32 is a yellow main-sequence star in the constellation of Pisces. The star was given the formal name Parumleo in January 2020, Latin for small lion and referencing the national animal of Singapore.

WASP-26 is a yellow main sequence star in the constellation of Cetus.

WASP-25 is a yellow main sequence star in the constellation of Hydra.

WASP-50 is a G-type main-sequence star about 610 light-years away. The star is older than the Sun and slightly depleted in heavy elements compared to the Sun, and has a close to average starspot activity. Despite its advanced age, the star is rotating rapidly, being spun up by the tides raised by giant planet on close orbit.

WASP-189 b is an extrasolar planet that has an orbital period around its host star, WASP-189, of less than three earth days, and is about 322 light-years away in the Libra constellation. It was first discovered in 2018, and was observed in 2020 by CHEOPS.

WASP-78, is a single F-type main-sequence star about 2500 light-years away. It is likely to be younger than the Sun at 3.4+1.5
−0.8
billion years. WASP-78 is depleted in heavy elements, having a 45% concentration of iron compared to the Sun.

BD+00 316 is an ordinary star with a close-orbiting planetary companion in the equatorial constellation of Cetus. It is also known as WASP-71 since 2019; BD+00 316 is the stellar identifier from the Bonner Durchmusterung catalogue. With an apparent visual magnitude of 10.56, it is too faint to be visible to the naked eye. This star is located at a distance of 1,160 light-years based on parallax measurements, and is drifting further away with a heliocentric radial velocity of 7.7 km/s.

WASP-62, formally named Naledi, is a single star about 573 light-years away. It is an F class main-sequence star, orbited by a planet, WASP-62b. The age of WASP-62 is much younger than the Sun at 0.8±0.6 billion years, and it has a metal abundance similar to the Sun.

WASP-54, also known as BD+00 3088, is a binary star system about 825 light-years away. The primary, WASP-54A, is a F-type main-sequence star, accompanied by the red dwarf WASP-54B on a wide orbit. WASP-54 is depleted in heavy elements, having 55% of the solar abundance of iron. The age of WASP-54 is slightly older than the Sun's at 6.9+1.0
−1.9
billion years.

WASP-84, also known as BD+02 2056, is a G-type main-sequence star 327 light-years away in the constellation Hydra. Its surface temperature is 5350±31 K and is slightly enriched in heavy elements compared to the Sun, with a metallicity Fe/H index of 0.05±0.02. It is rich in carbon and depleted of oxygen. WASP-84's age is probably older than the Sun at 8.5+4.1
−5.5
billion years. The star appears to have an anomalously small radius, which can be explained by the unusually high helium fraction or by it being very young.

The Qatar Exoplanet Survey, also known as QES, is an international exoplanet search survey based in Qatar. Its main goal is to detect exoplanets using the transit method, which is observing the light curve of the host star.

WASP-80 is a K-type main-sequence star about 162 light-years away. The star's age is much younger than the Sun's at 1.352±0.222 billion years. WASP-80 is similar to the Sun in concentration of heavy elements, although this measurement is highly uncertain.

<span class="mw-page-title-main">WASP-96b</span> Gas giant exoplanet targeted for spectroscopy

WASP-96b is a gas giant exoplanet. Its mass is 0.48 times that of Jupiter. It is 0.0453 AU from the class G star WASP-96, which it orbits every 3.4 days. It is about 1,140 light-years away from Earth, in the constellation Phoenix. It was discovered in 2013 by the Wide Angle Search for Planets (WASP).

References

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