HATネット

HATネット(Hungarian Automated Telescope Network, ハンガリー自動望遠鏡ネットワーク)とは、食検出法による太陽系外惑星の発見を目的とした観測網である。全自動式の6台の小型望遠鏡から構成され、ハーバード・スミソニアン天体物理学センターによって維持・管理されている。

ハンガリーの小規模グループが開発を主導したため、名称にハンガリーを冠している。計画は1999年に立ち上げられ、2001年5月から本格的な観測を開始した。初の惑星は2006年に公表され、以降は年間数個のペースで惑星を報告し続けている。

2002年には運用を終了したROTSE-IIプロジェクトからハードウェアの貸与を受け、新世代の観測ネットワークへの更新が進んだ。ROTSE-IIはガンマ線バースト残光の自動観測を目的とし、HATNetに似た観測システムを運用していた。2002年には新型観測システムの原型機であるHAT-5が開発された。第一世代の望遠鏡が200mm F2.8カメラレンズを使用していたのに対し、HAT-5ではより大口径かつ高画質の200mm F1.8レンズに更新し、架台の指向精度やソフトウェアも改良された。2003年9月にはHAT-5と同仕様の量産型であるHAT-6とHAT-7がフレッド・ローレンス・ホイップル天文台天文台に設置された。さらに同年11月にはマウナケア天文台群に同型機を2台設置した。

2009年からは、オーストラリア、ナミビア、チリの3つの望遠鏡もHATネットに加わった。こちらは南半球でのHATネットという意味でHAT-Southと呼ばれている。従来のHATネットの望遠鏡で発見された系外惑星には、後述の通り「HAT-P-1b」などという名称を与えているが、HAT-Southで発見されたものについては「HATS-1b」のように名称を区別している。

発見した惑星

惑星発見数の推移 

左は各年の新規発見数、右は累計発見数の推移である。

新規発見数西暦05101520252006200920122015201820212024発見数HATネットによる新規惑星発見数の推移
新規発見数(データ)
累計発見数西暦03060901201502006200920122015201820212024発見数HATネットによる累計惑星発見数の推移
累計発見数(データ)

一覧 

凡例
惑星の種類
連星系の中の恒星を公転している惑星
* トランジット法以外の手法で発見された惑星

North

主星 距離
(pc)
惑星 質量 半径 公転周期
(日)
軌道長半径
(au)
離心率 傾斜角
(°)
平衡温度 発見年 出典
(MJ) (M⊕) (RJ) (R⊕)
HAT-P-1B158.979b0.5251671.24213.924.465299760.0553<0.01186.1113222006
HAT-P-2127.774b8.7027651.15712.975.63347540.068800.5083386.7217002007
c*10.7340185000.37902023
HAT-P-3A134.554b0.5951890.91110.22.899738380.03878<0.0186.3111702007
HAT-P-4A320.451b0.6512071.27414.283.05652540.04449<0.007389.9116912007
HAT-P-5303.336b1.023241.25414.062.788473600.04073<0.07286.7515392007
HAT-P-6275.358b1.106351.51.33014.913.85300300.052390.02385.5117042007
HAT-P-7A341.079b1.806574.01.5116.932.2047370.038130.001683.15127002008
HAT-P-8A211.553b1.354430.31.5016.813.07634580.044960.002987.517002008
HAT-P-9455.203b0.7492381.39315.613.922810720.052870.08486.4415402008
HAT-P-10A124.730b0.5321690.99011.103.72247930.043760.02889.039922008
HAT-P-1137.7647b0.078725.00.44664.9014.8878024430.05320.257789.0278472009
c*2.373133974.130.604135.72018
HAT-P-12142.751b0.21167.10.94910.63.21305790.037670.02688.249752009
HAT-P-13246.810b0.8832811.28114.362.91623830.042700.013383.417402009
HAT-P-14A222.663b2.303732.01.15012.894.6276820.060620.107483.516242010
HAT-P-15192.516b1.949619.51.07212.0210.8635020.09650.20089.19042010
HAT-P-16A226.637b4.22113421.28914.452.77597120.041340.046286.615712010
HAT-P-1792.3831b0.5371711.01011.3210.3385230.08820.341789.27922010
c*>2.88>91539724.670.2952010
HAT-P-18A161.400b0.20063.60.99511.155.5080230.05596<0.08788.88412010
HAT-P-19202.078b0.27788.01.00811.304.008783220.04599<0.02489.52981.22010
HAT-P-20A71.0374b7.2222951.02511.492.8753169380.035930.017286.889642010
HAT-P-21277.278b3.9712621.02411.484.1244810.049500.21787.212832010
HAT-P-22A81.7647b2.192696.71.06011.883.212233280.04171<0.002086.4612932010
HAT-P-23364.813b1.976261.36815.331.212882870.02320<0.05285.119512010
HAT-P-24A415.344b0.7232301.24213.923.35524790.046510.03388.616372010
HAT-P-25300.384b0.5691811.13512.723.652815140.046600.02388.2211822010
HAT-P-26141.837b0.05918.7510.5656.3334.2345160.04790.12488.610012010
HAT-P-27A199.173b0.6161961.0211.433.03958240.03998<0.02885.02011
HAT-P-28401.319b0.6372021.21213.593.2572150.04337<0.03988.013842011
HAT-P-29313.576b0.7672441.06411.935.7233900.06650.07587.9912712011
HAT-P-30A213.985b0.7462371.34015.022.8105950.04190<0.01683.6016302011
HAT-P-31344.050b2.147682.41.0712.05.0054250.06100.261787.114502011
HAT-P-32A289.205b0.682161.98022.192.150008200.033970.15988.981835.72011
HAT-P-33A396.110b0.662101.68618.93.4744740.049950.18087.2017822011
HAT-P-34249.325b3.3310581.19713.425.4526540.067740.43287.115202012
HAT-P-35A506.965b1.056335.61.33214.933.6467060.04978<0.02087.315812012
HAT-P-36294.419b1.925611.81.35715.211.327346600.024020.06385.191820.22012
HAT-P-37390.594b1.203811.17813.202.7974360.037930.05886.912712012
HAT-P-38255.206b0.26784.90.8259.254.6403820.05231<0.05588.310822012
HAT-P-39A697.004b0.5691811.57117.613.5438700.05095<0.178717522012
HAT-P-40464.469b0.5811851.73019.394.4572430.06076<0.1288.317702012
HAT-P-41A348.185b0.7952531.68518.892.6940470.04258<0.2287.719412012
HAT-P-42405.238b0.882801.2814.34.6418780.0575<0.1185.914282012
HAT-P-43528.825b0.732321.28114.363.3326870.04445<0.2188.713532012
HAT-P-44B347.850b0.352111.8711.24213.9224.3012190.05070.04489.111082013
c*>4.0>1271.3872.21.7520.4942013
HAT-P-45298.640b0.862731.42615.983.1289920.045210.04987.816522013
HAT-P-46290.736b0.493156.6841.28414.3924.4631290.05770.12385.514582013
HAT-P-47268b0.20665.51.34215.044.7321820.06170.10184.616212016
HAT-P-48305b0.17355.01.40715.774.4086500.05400.24284.915082016
HAT-P-49350.351b1.775631.41315.842.6915480.04378<0.1286.221312014
HAT-P-50515.458b1.359431.91.28814.443.12201090.04527<0.08483.6518622015
HAT-P-51A440.089b0.30797.61.20513.514.218020910.05042<0.07089.281168.22015
HAT-P-52361.1550b0.8172601.00911.312.75359530.03696<0.03087.0212182015
HAT-P-53666.802b1.477469.41.31814.771.96162410.03160<0.08586.217782015
HAT-P-54143.651b1.825780.94410.63.7998470.04122<0.07487.0408182014
HAT-P-55511.388b0.5961891.32414.843.585231300.04628<0.13986.8013672015
HAT-P-56320.639b1.906041.46616.432.79083270.04232<0.24682.1318402015
HAT-P-57A279.860b1.414481.41315.842.46529500.0406088.2622002015
HAT-P-58515.590b0.3721181.33214.934.01383790.04994<0.07385.6416222020
HAT-P-59265.471b1.540489.51.12312.594.14197710.05064<0.0385.181277.82020
HAT-P-60233.220b0.5741821.63118.284.79478130.06277<0.2583.7517722020
HAT-P-61338.840b1.057335.90.89910.11.902312890.03010<0.11383.6215052020
HAT-P-62348.815b0.7612421.07312.032.64532350.03772<0.10187.9315122020
HAT-P-63403.458b0.6141951.11912.543.3777280.04294<0.06988.4512372020
HAT-P-64651.897b0.581841.70319.094.00723200.05387<0.10188.0117662020
HAT-P-65738.519b0.5541761.61118.062.605447510.04042<0.30488.318182016
HAT-P-66935.456b0.7832491.5917.82.97208600.04363<0.09086.218962016
HAT-P-67A371.686b0.341082.08523.374.810102500.06505088.819032017
HAT-P-68202.152b0.7242301.07212.022.298405510.02996<0.04188.731027.82020
HAT-P-69341.263b3.5811381.67618.794.78694910.06555087.1919302019
HAT-P-70330.739b<6.78<21551.8721.02.744324520.04739096.5025622019
HAT-P-71476.831b1.174373.11.38115.483.18338700.047083.2316932025

South

主星 距離
(pc)
惑星 質量 半径 公転周期
(日)
軌道長半径
(au)
離心率 傾斜角
(°)
平衡温度 発見年 出典
(MJ) (M⊕) (RJ) (R⊕)
HATS-1283.971b1.755561.30214.593.4464590.04446<0.08285.613592012
HATS-2341.925b1.374351.12212.581.354133790.02317<0.2987.8315502013
HATS-3411.211b1.103501.38115.483.5478510.04852<0.3086.216482013
HATS-4416.459b1.309416.01.02011.432.5167290.036230.01388.513152014
HATS-5246.384b0.23875.60.91210.24.7633870.054280.01989.310252014
HATS-6169.318b0.3191010.99811.193.32527250.03623088.210712.82014
HATS-7240.707b0.12339.10.5636.313.18531500.04012<0.1287.9210842015
HATS-8794.637b0.14546.10.8739.793.5838930.04668<0.2587.813242015
HATS-9638.700b0.8232621.06511.941.91530730.03048<0.07586.517462015
HATS-10534.889b0.5851860.96910.863.31284600.04493<0.2887.7914072015
HATS-11944.603b0.832641.60918.033.6191880.0507<0.3489.0315962016
HATS-12746.138b2.390759.60.6927.763.1427020.0441<0.08582.2714462016
HATS-13421.855b0.5921881.21213.593.04404990.04059<0.18188.5512442015
HATS-14513.011b1.069339.81.03911.652.76676410.03815<0.1188.8312762015
HATS-151139.55b2.176901.10512.391.747487530.02712<0.12687.1315052015
HATS-16757.044b3.2710391.3014.62.6865020.03744<0.0083.5315922015
HATS-17400.331b1.338425.30.7778.7116.2546110.13080.02989.088142015
HATS-18624.368b1.9795629.141.32914.900.837840000.01740<0.16685.2902069.482016
HATS-19780b0.4271361.6618.614.5696730.05890.386.615702016
HATS-20454b0.27386.80.7768.7003.79929690.04619<0.50187.1611472016
HATS-21286b0.3321061.12312.593.55439730.04676<0.14985.0412842016
HATS-22229.518b2.748710.95310.684.72281240.050250.07987.968582016
HATS-23639.004b1.470467.21.8620.82.16051560.03397<0.11481.0216542016
HATS-24494.182b2.267181.39515.641.34849780.0238<0.24285.9721662016
HATS-25471.158b0.6131951.2614.14.29864320.05163<0.17686.9312772016
HATS-26861.843b0.6502071.7519.63.30238810.04735<0.24586.219182016
HATS-27816.988b0.531681.5016.84.6370380.06110<0.58187.316592016
HATS-28535.383b0.6722141.19413.383.18107810.04131<0.20286.1712532016
HATS-29353.891b0.6532081.25114.024.60587490.05475<0.15887.3712122016
HATS-30A342.140b0.7062241.17513.173.17435160.04354<0.09686.8414142016
HATS-31773.974b0.882801.6418.43.3779600.0478<0.23385.018232016
HATS-32745.116b0.922921.24914.002.81265480.04024<0.47187.114372016
HATS-33248.460b1.192378.91.15412.942.549564000.03731<0.0887.5514292016
HATS-34508.842b0.941299.11.4316.02.10616070.03166<0.10882.2814452016
HATS-35514.555b1.222388.41.46416.411.82099930.03199<0.30686.920372016
HATS-36856.436b3.21610221.23513.844.17523870.054250.10587.6113562017
HATS-37A211.896b0.09931.50.6066.794.33153660.04913089.3310852020
HATS-38343.525b0.074240.6146.884.3750210.05036087.2112942020
HATS-39878.521b0.632001.5717.64.57763480.06007<0.27584.9816452018
HATS-401342.29b1.595051.5817.73.26427360.04997<0.31285.821012018
HATS-41737.668b9.730831.3314.94.1936490.05830.3880.417102018
HATS-42800.377b1.885981.4015.72.29210200.03689<0.22985.118562018
HATS-43362.273b0.26183.01.1813.234.38884970.049440.17389.2410032017
HATS-44446.035b0.561781.06711.962.74390040.03649<0.27984.6511612017
HATS-45772.110b0.702221.28614.414.18762440.05511<0.2485.6115182017
HATS-46453.808b0.17355.00.90310.14.74237290.05367<0.55987.3210542017
HATS-47300.670b0.3691171.11712.523.92280380.04269<0.08887.080852.92020
HATS-48A263.609b0.24377.20.8008.973.13166660.03769<0.16289.58954.62020
HATS-49324.413b0.3531120.7658.574.14804670.04515<0.07188.27834.82020
HATS-50756.742b0.391241.13012.673.82970150.05046<0.51687.5413482017
HATS-51389.570b0.7682441.4115.83.34887020.04639<0.3387.115532017
HATS-52555.134b2.247121.38215.491.366654360.02498<0.24684.718342017
HATS-53585.770b0.5951891.34015.023.85377680.04753<0.3388.7813122017
HATS-54748.585b0.7532391.01511.382.54417650.037<0.12683.6714292018
HATS-55609.838b0.9212931.25114.024.20420010.05412<0.09286.32013672018
HATS-56564.409b0.6021911.68818.924.3247990.06043<0.01983.2919022018
HATS-57A279.485b3.14710001.13912.772.35062100.03493<0.02887.881413.42018
HATS-58A403.591b1.033271.09512.274.21808960.05798<0.16885.6917212018
HATS-59642.884b0.8062561.12612.625.4160810.061120.12988.1011282018
c*>12.70>403614222.504<0.083175.92018
HATS-60486.474b0.6622101.15312.923.5608290.04708<0.19186.2815282018
HATS-61679.761b3.4010811.19513.397.8179530.07908<0.09287.151226.12018
HATS-62523.067b<0.179<56.91.05511.833.27688370.04163<0.29887.9212372018
HATS-63623.232b0.963051.20713.533.05665270.04026<0.13684.861398.32018
HATS-641080.15b0.963051.67918.824.9088970.06562<0.15187.2417932018
HATS-65A493.320b0.8212611.50116.823.10516100.04497<0.06284.8216342018
HATS-661477.98b5.3316941.41115.823.14143910.04714<0.06487.0619982018
HATS-67960.109b1.454611.68518.891.60917880.03032<0.05779.0321932018
HATS-68603.955b1.290410.01.23213.813.58622020.05071<0.03683.2117412018
HATS-69414.537b<0.577<1830.94510.62.22525770.03211<0.51988.491295.72018
HATS-71140.225b0.371181.02411.483.79552020.03745088.82586.82018
HATS-72127.589b0.125439.860.72248.0977.32794740.066517<0.01389.56739.32020
HATS-74A299.389b1.464641.03211.571.731856060.02384<0.04487.39895.12021
HATS-75194.964b0.4911560.8849.912.78865560.032742<0.06488.07772.32021
HATS-76385.6890b2.629835.61.07912.091.94164230.02658<0.06288.24939.82021
HATS-77436.176b1.374436.71.16513.063.08762620.03607<0.04588.44828.32021

発見した褐色矮星の一覧

褐色矮星は2個(Northで1個、Southで1個)発見されている(2025年3月20日時点)。

North

主星 距離
(pc)
褐色矮星 質量
(MJ)
半径
(RJ)
公転周期
(日)
軌道長半径
(au)
離心率 傾斜角
(°)
平衡温度 発見年 出典
HAT-P-13246.810c*>14.61445.821.2580.65513402009

South

主星 距離
(pc)
褐色矮星 質量
(MJ)
半径
(RJ)
公転周期
(日)
軌道長半径
(au)
離心率 傾斜角
(°)
平衡温度 発見年 出典
HATS-701458.83b12.91.3841.88823780.03632<0.1886.727302018

脚注

  1. ↑ Bakos, G. Á. et al. (2002). “System Description and First Light Curves of the Hungarian Automated Telescope, an Autonomous Observatory for Variability Search”. Publications of the Astronomical Society of the Pacific 114 (799): 974–987. arXiv:astro-ph/0206001. Bibcode:2002PASP..114..974B. doi:10.1086/342382.
  2. ↑ Bakos et al. (2004). The Publications of the Astronomical Society of the Pacific 117: 783. Bibcode:2004PASP..116..266B.
  3. ↑ Martin, Pierre-Yves (1995年). “Catalogue of Exoplanets” (英語). exoplanet.eu. 2025年3月20日閲覧。
  4. ↑ Bakos, G. Á. et al. (2007). “HAT-P-1b: A Large-Radius, Low-Density Exoplanet Transiting One Member of a Stellar Binary”. The Astrophysical Journal 656 (1): 552–559. arXiv:astro-ph/0609369. Bibcode:2007ApJ...656..552B. doi:10.1086/509874.
  5. ↑ Johnson, John Asher et al. (2008). “Measurement of the Spin-Orbit Angle of Exoplanet HAT-P-1b”. The Astrophysical Journal 686 (1): 649–657. arXiv:0806.1734. Bibcode:2008ApJ...686..649J. doi:10.1086/591078.
  6. ↑ Bakos, G. Á. et al. (2007). “HD 147506b: A Supermassive Planet in an Eccentric Orbit Transiting a Bright Star”. The Astrophysical Journal 670 (1): 826–832. arXiv:0705.0126. Bibcode:2007ApJ...670..826B. doi:10.1086/521866.
  7. ↑ de Beurs, Zoë L.; de Wit, Julien; Venner, Alexander; Berardo, David; Bryan, Jared; Winn, Joshua N.; Fulton, Benjamin J.; Howard, Andrew W. (2023-10-01). “Revisiting Orbital Evolution in HAT-P-2 b and Confirmation of HAT-P-2 c”. The Astronomical Journal 166 (4): 136. arXiv:2309.03256. Bibcode:2023AJ....166..136D. doi:10.3847/1538-3881/acedf1. ISSN 0004-6256.
  8. ↑ Torres, G. et al. (2007). “HAT-P-3b: A Heavy-Element-rich Planet Transiting a K Dwarf Star”. The Astrophysical Journal Letters 666 (2): L121–L124. arXiv:0707.4268. Bibcode:2007ApJ...666L.121T. doi:10.1086/521792.
  9. ↑ Kovács, G. et al. (2007). “HAT-P-4b: A Metal-rich Low-Density Transiting Hot Jupiter”. The Astrophysical Journal Letters 670 (1): L41–L44. arXiv:0710.0602. Bibcode:2007ApJ...670L..41K. doi:10.1086/524058.
  10. ↑ Bakos, G. Á. et al. (2007). “HAT-P-5b: A Jupiter-like Hot Jupiter Transiting a Bright Star”. The Astrophysical Journal Letters 671 (2): L173–L176. arXiv:0710.1841. Bibcode:2007ApJ...671L.173B. doi:10.1086/525022.
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