This is a List of exoplanets discovered in 2015.
For exoplanets detected only by radial velocity, the mass value is actually a lower limit. (See Minimum mass for more information)
Name | Mass (MJ) | Radius (RJ) | Period (days) | Semi-major axis (AU) | Temp. (K) [1] | Discovery method | Distance (ly) | Host star mass (M☉) | Host star temp. (K) | Remarks |
---|---|---|---|---|---|---|---|---|---|---|
2MASS J02192210-3925225 b | 13.9+1.1 −1.9 | 1.44 | 156 | imaging | 129 | 0.11 | 3064 | [2] | ||
2MASS J1119-1137 | 5-10 | 32872.5 | 3.6 | imaging | 86 | [3] [4] Pair of rogue planets | ||||
Kepler-451b | 1.9 | 406 | 0.92 | timing | 1340±20 | 0.48 | 29564±106 | Two additional planets in the system [5] [6] | ||
51 Eridani b | 2 | 13.2 | 700 | imaging | 96±1.0 | 1.75 | 7331±30 | [7] | ||
8 Ursae Minoris b | 1.5 | 93.4 | 0.49 | radial vel. | 519 | 1.8 | 4847.4 | [8] Proper name Halla | ||
Aldebaran b | 6.47 | 628.96 | 1.46 | radial vel. | 66.6 | 1.13 | 4055 | Confirmed in 2015 [9] but disputed in 2019 [10] | ||
BD+49 828 b | 1.6 | 2590 | 4.2 | radial vel. | 1460 | 1.52 | 4943 | [11] | ||
COROT-28b | 0.484 | 0.955 | 5.20851 | 0.0603 | transit | 1800 | 1.01 | 5150 | [12] | |
COROT-29b | 0.85 | 0.9 | 2.85057 | 0.0386 | transit | 2500 | 0.97 | 5260 | [12] | |
COROT-33b | 59.2 | 1.1 | 5.819143 | 0.0579 | transit | 2270 | 0.86 | 5225 | Unusually short period brown dwarf [13] | |
EPIC 203311200 b | 0.51±0.05 | 540 | 1.2 | transit | 1425±163 | 0.91±0.09 | 5200±200 | Single transit only, true period unknown [14] | ||
Gliese 1132 b | 0.0051 | 0.103 | 1.62893 | 580 | transit | 39.3 | 0.18 | 3270 | [15] | |
HAT-P-50b | 1.35 | 1.288 | 3.1220109 | 0.0453 | 1862 | transit | 1620 | 1.27 | 6280 | [16] |
HAT-P-51b | 0.309 | 1.293 | 4.2180278 | 0.05069 | 1192 | transit | 1500 | 0.98 | 5449 | [16] |
HAT-P-52b | 0.818 | 1.009 | 2.7535953 | 0.03694 | 1218 | transit | 1260 | 0.89 | 5131 | [16] |
HAT-P-53b | 1.484 | 1.318 | 1.9616241 | 0.03159 | 1778 | transit | 2350 | 1.09 | 5956 | [16] |
HAT-P-55b | 0.582 | 1.182 | 3.5852467 | 0.04604 | 1313 | transit | 1600 | 1.01 | 5808 | [17] |
HAT-P-56b | 2.18 | 1.466 | 2.7908327 | 0.0423 | 1840 | transit | 1013 | 1.3 | 6566 | [18] |
HAT-P-57b | 1.85 | 1.413 | 2.465295 | 0.0406 | 2200 | transit | 990 | 1.47 | 7500 | [19] |
HATS-7b | 0.120±0.012 | 0.563+0.046 −0.034 | 3.1853 | 0.04012±0.00043 | 1084±32 | transit | 791±5 | 0.849±0.027 | 4985±50 | [20] |
HATS-8b | 0.138 | 0.873 | 3.583893 | 0.04667 | 1324 | transit | 2700 | 1.06 | 5679 | [21] Intensely blue-colored planet [22] |
HATS-9b | 0.837 | 1.065 | 1.9153073 | 0.03048 | 1823 | transit | 2030 | 1.03 | 5366 | [23] |
HATS-10b | 0.526 | 0.969 | 3.312846 | 0.04491 | 1407 | transit | 1620 | 1.1 | 5880 | [23] |
HATS-13b | 0.543 | 1.212 | 3.0440499 | 0.04057 | 1244 | transit | 1550 | 0.96 | 5523 | [24] |
HATS-14b | 1.071 | 1.039 | 2.7667641 | 0.03815 | transit | 1670 | 0.97 | 5346 | [24] | |
HATS-15b | 2.17 | 1.105 | 1.74748753 | 0.02712 | transit | 2250 | 0.87 | 5311 | [25] | |
HATS-16b | 3.27 | 1.3 | 2.686502 | 0.03744 | transit | 2520 | 0.97 | 5738 | [25] | |
HATS-17b | 1.338 | 0.777 | 16.254611 | 0.1308 | 814 | transit | 1110 | 1.13 | 5846 | [26] |
HD 1605 b | 0.96 | 577.9 | 1.48 | radial vel. | 276 | 1.31 | 4757 | Subgiant host star [27] | ||
HD 1605 c | 3.48 | 2111 | 3.52 | radial vel. | 276 | 1.31 | 4757 | Subgiant host star [27] | ||
HD 1666 b | 6.43 | 270 | 0.94 | radial vel. | 360.8 | 1.5 | 6317 | [27] | ||
HD 7924 c | 0.02473 | 15.299 | 0.1134 | 584 | radial vel. | 54.9 | 0.83 | 5075 | [28] | |
HD 7924 d | 0.02026 | 24.451 | 0.1551 | 499 | radial vel. | 54.9 | 0.83 | 5075 | [28] | |
HD 11755 b | 6.5 | 433.7 | 1.08 | radial vel. | 755 | 0.9 | 4312.5 | [8] | ||
HD 12648 b | 2.9 | 133.6 | 0.54 | radial vel. | 517 | 1.2 | 4835.8 | [8] | ||
HD 24064 b | 9.4 | 535.6 | 1.29 | radial vel. | 862 | 1 | 4052.5 | [8] | ||
HD 32963 b | 0.7 | 2372 | 3.41 | radial vel. | 114.9 | 0.94 | 5727 | [29] | ||
HD 33844 b | 1.96 | 551.4 | 1.6 | radial vel. | 329 | 1.78 | 4861 | [30] | ||
HD 33844 c | 1.75 | 916 | 2.24 | radial vel. | 329 | 1.78 | 4861 | [30] | ||
HD 67087 b | 3.06 | 352.2 | 1.08 | radial vel. | 289.7 | 1.36 | 6330 | [27] Catastrophically unstable planetary system [31] | ||
HD 67087 c | 4.85 | 2374 | 3.86 | radial vel. | 289.7 | 1.36 | 6330 | [27] Catastrophically unstable planetary system [31] | ||
HD 95127 b | 5.01 | 482 | 1.28 | radial vel. | 1080 | 1.2 | 4218 | [11] | ||
HD 95872 b | 4.6 | 4375 | 5.2 | radial vel. | 236 | 0.95 | 5312 | [32] | ||
HD 145934 b | 2.28 | 2730 | 4.6 | radial vel. | 748 | 1.75 | [33] | |||
HD 164595 b | 0.05078 | 40 | 0.23 | radial vel. | 94.4 | 0.99 | 5790 | [34] | ||
HD 175607 b | 0.0260±0.0039 | 29.03±0.03 | radial vel. | 147.7 | 0.71 | 5392 | Metal-poor host star, additional planet suspected [35] | |||
HD 216536 b | 1.47 | 148.6 | 0.609 | radial vel. | 1240 | 1.36 | 4639 | [11] | ||
HD 219134 b | 0.01491 | 0.143 | 3.092926 | 0.03876 | radial vel. | 21.4 | 0.81 | 4699 | [36] | |
HD 219134 c | 0.01372 | 0.135 | 6.76458 | 0.0653 | radial vel. | 21.4 | 0.81 | 4699 | [36] | |
HD 219134 d | 0.05088 | 0.144 | 46.859 | 0.237 | radial vel. | 21.4 | 0.81 | 4699 | [36] | |
HD 219134 f | 0.02297 | 0.117 | 22.717 | 0.1463 | radial vel. | 21.4 | 0.81 | 4699 | [36] Controversial | |
HD 219134 g | 0.034 | 94.2 | 0.3753 | radial vel. | 21.4 | 0.81 | 4699 | [36] | ||
HD 219134 h | 0.308±0.014 | 2100.6±2.9 | 3.11 | radial vel. | 21.4 | 0.81 | 4699 | [36] [37] | ||
HIP 65891 b | 6 | 1084.5 | 2.81 | radial vel. | 492 | 2.5 | 5000 | [38] Host star also known as HD 117253 | ||
HIP 107773 b | 1.98 | 144.3 | 0.72 | radial vel. | 344 | 2.42 | 4945 | [38] Host star also known as HD 207229 | ||
K2-3b | 0.194 | 10.05449 | 0.0769 | 463 | transit | 143.9 | 0.6 | 3896 | [39] [40] | |
K2-3c | 0.165 | 24.64354 | 0.1399 | 344 | transit | 143.9 | 0.6 | 3896 | [39] [40] | |
K2-3d | 0.135 | 44.55983 | 0.2076 | 282 | transit | 143.9 | 0.6 | 3896 | [39] [40] | |
K2-4b | 0.211 | 10.00329 | 0.0777 | transit | 761 | 0.63 | 4197 | [39] | ||
K2-5b | 0.17 | 5.73594 | 0.0532 | transit | 666 | 0.61 | 3930 | [39] | ||
K2-5c | 0.202 | 10.93241 | 0.0818 | transit | 666 | 0.61 | 3930 | [39] | ||
K2-6b | 0.223 | 30.94191 | 0.1898 | transit | 1040 | 0.97 | 5850 | [39] | ||
K2-7b | 0.238 | 28.67992 | 0.1814 | transit | 2460 | 0.97 | 5772 | [39] | ||
K2-8b | 0.319 | 10.35239 | 0.0856 | transit | 1330 | 0.78 | 4870 | [39] Unconfirmed in 2016 [41] | ||
K2-9b | 0.201 | 18.4498 | 0.091 | transit | 360 | 0.3 | 3390 | [39] | ||
K2-10b | 0.08495 | 0.343 | 19.3044 | transit | 880 | 0.92 | 5620 | [39] | ||
K2-11b | 0.674 | 39.93767 | 0.2257 | transit | 6590 | 1.35 | 5433 | [39] | ||
K2-12b | 0.208 | 8.28212 | 0.0802 | transit | 960 | 1.01 | 5800 | [39] | ||
K2-13b | 0.169 | 39.91488 | 0.2114 | transit | 950 | 0.8 | 5698 | [39] | ||
K2-14b | 0.429 | 8.36802 | 0.0627 | transit | 710 | 0.47 | 3789 | [39] | ||
K2-15b | 0.221 | 11.8104 | 0.091 | transit | 1430 | 0.72 | 5131 | [39] | ||
K2-16b | 0.18 | 7.6188 | 0.0667 | 658 | transit | 1060 | 0.68 | 4742 | [39] | |
K2-16c | 0.227 | 19.07863 | 0.1229 | 485 | transit | 1060 | 0.68 | 4742 | [39] | |
K2-17b | 0.199 | 17.96753 | 0.119 | transit | 440 | 0.71 | 4320 | [39] | ||
K2-18b | 0.2 | 32.94488 | 0.1491 | transit | 124.2 | 0.41 | 3503 | [39] | ||
K2-19b | 0.090 | 0.691 | 7.9194 | 0.074 | 854 | transit | 950 | 0.93 | 5430 | [39] [42] |
K2-19c | 0.081 | 0.434 | 11.90715 | 0.0971 | 745 | transit | 950 | 0.93 | 5430 | [39] [42] |
K2-21b | 0.142 | 9.32414 | 0.0731 | transit | 210 | 0.64 | 4043 | [43] | ||
K2-21c | 0.171 | 15.5012 | 0.1026 | transit | 210 | 0.64 | 4043 | [43] | ||
K2-22b | 1.4 | 0.223 | 0.381078 | 0.0088 | transit | 730 | 0.6 | 3830 | [44] | |
K2-25b | 0.306 | 3.484552 | transit | 149 | 0.29 | 3180 | Parent star, also known as EPIC 210490365, belongs to Hyades [45] | |||
K2-28b | 0.207 | 2.260455 | 0.0214 | transit | 170 | 0.26 | 3214 | [46] | ||
KELT-4Ab | 0.902 | 1.699 | 2.9895932 | 0.04317 | 1827 | transit | 680 | 1.2 | 6206 | [47] |
KELT-6c | 3.71 | 1276 | 2.39 | radial vel. | 720 | 1.13 | 6272 | [48] | ||
KELT-7b | 1.28±0.17 | 1.496±0.035 | 2.7347749 | 0.0434±0.0012 | 2028±17 | transit | 442±2 | 1.517±0.022 | 6699±24 | [49] [50] |
KELT-8b | 0.867 | 1.86 | 3.24406 | 0.04571 | 1675 | transit | 770 | 1.21 | 5754 | [51] |
KELT-10b | 0.679 | 1.399 | 4.1662739 | 0.0525 | 1377 | transit | 600 | 1.11 | 5948 | [52] |
KELT-14b | 1.284 | 1.743 | 1.7100566 | 0.03005 | transit | 870 | 1.24 | 5720 | Host star also known as WASP-122 [53] [54] | |
KELT-15b | 0.91 | 1.443 | 3.329441 | 0.04613 | transit | 950 | 1.18 | 6003 | [53] | |
Kepler-455b | 0.616 | 1322.3 | transit | 4100 | 0.98 | 6175 | [55] Host star also known as KIC 3558849 | |||
Kepler-460b | 0.571 | 440.7813 | transit | 4330 | 1.07 | 6340 | [55] Host star also known as KIC 5437945 | |||
Kepler-456b | 0.589 | 1320.1 | transit | 2480 | 0.98 | 6258 | [55] Host star also known as KIC 5951458 | |||
Kepler-458b | 0.41 | 572.3847 | transit | 5500 | 0.98 | 6065 | [55] Host star also known as KIC 9663113 | |||
Kepler-459b | 0.491 | 854.083 | transit | 5000 | 1.01 | 6091 | [55] Host star also known as KIC 10525077 | |||
Kepler-457b | 0.366 | 31.8099 | transit | 3610 | 1.04 | 6474 | [55] Host star also known as KIC 8540376 | |||
Kepler-457c | 0.214 | 75.2 | transit | 3610 | 1.04 | 6474 | [55] Host star also known as KIC 8540376 | |||
KOI-12b | 10 | 1.43 | 17.8552333 | 0.151 | transit | 1390 | 1.45 | 6820 | Host star also known as Kepler-448 [56] | |
KOI-4427.01 | 0.208 | 147.6606 | 0.42 | transit | 783 | 0.526 | 3813 | Potentially habitable exoplanet, false positive probability 0.8%. [57] Also a red dwarf in the system. [58] | ||
Kepler-92d | 0.184 | 49.3568 | transit | 1580±17 | 1.21 | 5883 | [59] | |||
Kepler-433b | 2.82 | 1.45 | 5.33408384 | 0.0679 | transit | 6100 | 1.46 | 6360 | Host star also known as KOI-206 [60] | |
Kepler-434b | 2.86 | 1.13 | 12.8747099 | 0.1143 | transit | 4000 | 1.2 | 5977 | Host star also known as KOI-614 [60] | |
Kepler-435b | 0.84 | 1.99 | 8.6001536 | 0.0948 | transit | 6800 | 1.54 | 6161 | Host star also known as KOI-680 [60] | |
Kepler-436b | 0.24 | 64.00205 | 0.339 | transit | 2020 | 0.73 | 4651 | Host star also known as KOI-2529 [57] | ||
Kepler-437b | 0.19 | 66.65062 | 0.288 | transit | 1360 | 0.71 | 4551 | Host star also known as KOI-3255 [57] | ||
Kepler-438b | 0.1 | 35.23319 | 0.166 | transit | 470 | 0.54 | 3748 | Host star also known as KOI-3284 [57] | ||
Kepler-439b | 0.2 | 178.1396 | 0.563 | transit | 2260 | 0.88 | 5431 | Host star also known as KOI-4005 [57] | ||
Kepler-440b | 0.17 | 101.11141 | 0.242 | transit | 850 | 0.57 | 4134 | Host star also known as KOI-4087 [57] | ||
Kepler-441b | 0.15 | 207.2482 | 0.64 | transit | 930 | 0.57 | 4340 | Host star also known as KOI-4622 [57] | ||
Kepler-442b | 0.12 | 112.3053 | 0.409 | transit | 1120 | 0.61 | 4402 | Potentially habitable exoplanet, host star also known as KOI-4742 [57] | ||
Kepler-443b | 0.21 | 177.6693 | 0.495 | transit | 2540 | 0.74 | 4723 | Host star also known as KOI-4745 [57] | ||
Kepler-444b | 0.036 | 3.6001053 | 0.04178 | transit | 116 | 0.76 | 5046 | [59] | ||
Kepler-444c | 0.044 | 4.5458841 | 0.04881 | transit | 116 | 0.76 | 5046 | [59] | ||
Kepler-444d | 0.047 | 6.189392 | 0.06 | transit | 116 | 0.76 | 5046 | [59] | ||
Kepler-444e | 0.049 | 7.743493 | 0.0696 | transit | 116 | 0.76 | 5046 | [59] | ||
Kepler-444f | 0.066 | 9.740486 | 0.0811 | transit | 116 | 0.76 | 5046 | [59] | ||
Kepler-445b | 0.14 | 2.984151 | transit | 290 | 0.18 | 3157 | [61] | |||
Kepler-445c | 0.22 | 4.871229 | transit | 290 | 0.18 | 3157 | [61] | |||
Kepler-445d | 0.11 | 8.15275 | transit | 290 | 0.18 | 3157 | [61] | |||
Kepler-446b | 0.13 | 1.565409 | transit | 390 | 0.22 | 3359 | [61] | |||
Kepler-446c | 0.1 | 3.036179 | transit | 390 | 0.22 | 3359 | [61] | |||
Kepler-446d | 0.12 | 5.148921 | transit | 390 | 0.22 | 3359 | [61] | |||
Kepler-447b | 1.37 | 1.65 | 7.79430132 | 0.0769 | transit | 881±6 | 1 | 5493 | [62] | |
Kepler-449b | 0.183 | 12.58242 | transit | 848 | 0.97 | [59] Stellar companion in system [63] | ||||
Kepler-449c | 0.247 | 33.6727 | transit | 848 | 0.97 | [59] Stellar companion in system [63] | ||||
Kepler-450b | 0.548 | 28.454851 | transit | 1506±17 | 1.35 | [59] | ||||
Kepler-450c | 0.234 | 15.413135 | transit | 1506±17 | 1.35 | [59] | ||||
Kepler-450d | 0.075 | 7.51464 | transit | 1506±17 | 1.35 | [59] | ||||
Kepler-451b | 1.9 | 416±2 | 0.92±0.02 | timing | 1340±20 | 0.48+0.12 | Circumbinary planet, [64] controversial [65] | |||
Kepler-452b | 0.145 | 384.843 | 1.046 | 265 | transit | 1828±17 | 1.04 | 5757 | Potentially habitable exoplanet [66] | |
Kepler-454b | 0.02152 | 0.211 | 10.57375339 | 0.0954 | transit | 758±4 | 1.03 | 5701 | [67] | |
Kepler-454c | 4.46 | 523.9 | radial vel. | 758±4 | 1.03 | 5701 | [67] | |||
MOA-2010-BLG-353Lb | 0.27 | 1.72 | microlensing | 21000 | 0.18 | [68] | ||||
MOA-2011-BLG-028Lb | 0.09439 | 4.14 | microlensing | 24100 | 0.75 | [69] | ||||
MOA-2013-BLG-605Lb | 0.01007 | 0.94 | microlensing | 0.03 | [70] | |||||
OGLE-2012-BLG-0563Lb | 0.39 | 0.9 | microlensing | 4200 | 0.34 | [71] | ||||
OGLE-2015-BLG-0966Lb | 0.06607 | 2.1 | microlensing | 8200 | 0.38 | [72] [73] | ||||
Psi1 Draconis Bb | 1.53 | 3117 | 4.43 | radial vel. | 72.3 | 1.19 | 6212 | [32] | ||
VHS 1256-1257 b | 11.8±0.2 | 6,200,000+2,900,000 −4,000,000 | 360+110 −150 | imaging | 69.0±0.7 | 0.089+0.010 −0.010 | 2620±140 | [74] [75] | ||
WASP-41c | 3.18 | 421 | 1.07 | 241 | radial vel. | 590 | 0.93 | 5545 | [76] | |
WASP-47c | 1.57 | 580.7 | 1.41 | 247 | radial vel. | 650 | 1.11 | 5576 | [76] | |
WASP-47d | 0.05286 | 0.331 | 9.095 | 0.088 | transit | 650 | 1.11 | 5576 | [77] [76] | |
WASP-47e | 0.02863 | 0.162 | 0.789636 | 0.0173 | transit | 650 | 1.11 | 5576 | [77] [76] | |
WASP-120b | 4.85 | 1.473 | 3.6112706 | 0.0514 | 1890 | transit | 1430 | 1.39 | 6450 | [54] |
WASP-121b | 1.183+0.064 −0.062 | 1.865±0.044 | 1.2749255+0.00000020 −0.00000025 | 0.02544+0.00049 −0.00050 | 2358±52 | timing | 858±2 | 1.353+0.080 −0.079 | 6459±140 | [78] |
WASP-123b | 0.899 | 1.318 | 2.9776412 | 0.04263 | 1510 | transit | 700 | 1.17 | 5740 | [54] |
WASP-135b | 1.90±0.08 | 1.30±0.09 | 1.4013794±0.0000008 | 0.0243±0.0005 | transit | 980±150 | 0.98±0.06 | 5675±60 | [79] | |
Wolf 1061b | 0.00601 | 4.8869 | 0.0375 | radial vel. | 14.04±0.03 | 0.29 | 3342 | [80] | ||
Wolf 1061c | 0.01073 | 17.8719 | 0.089 | radial vel. | 14.04±0.03 | 0.29 | 3342 | Potentially habitable exoplanet [80] | ||
Wolf 1061d | 0.02423 | 217.21 | 0.47 | radial vel. | 14.04±0.03 | 0.29 | 3342 | [80] | ||
XO-2Nc | 1.8 | >6200 | radial vel. | 500 | 0.971 ± 0.034 | 5340 ± 32 | [81] Controversial |
The Hungarian Automated Telescope Network (HATNet) project is a network of six small fully automated "HAT" telescopes. The scientific goal of the project is to detect and characterize extrasolar planets using the transit method. This network is used also to find and follow bright variable stars. The network is maintained by the Center for Astrophysics | Harvard & Smithsonian.
WASP-11/HAT-P-10 is a binary star. It is a primary main-sequence orange dwarf star. Secondary is M-dwarf with a projected separation of 42 AU. The system is located about 424 light-years away in the constellation Aries.
GJ 3470 b is an exoplanet orbiting the star GJ 3470, located in the constellation Cancer. With a mass of just under 14 Earth-masses and a radius approximately 4.3 times that of Earth's, it is likely something akin to Neptune despite the initially strong belief that the planet was not covered in clouds like the gas giants in the Solar System.
K2-19 is an early K-type or late G-type main sequence star that is magnetically active, and has a light curve that exhibits variations in brightness of ~1%. It is located approximately 976 light-years away in the constellation Virgo. Three confirmed transiting exoplanets are known to orbit this star.
K2-18, also known as EPIC 201912552, is a red dwarf star with two planetary companions located 124 light-years from Earth, in the constellation of Leo.
HAT-P-26 is a K-type main-sequence star about 466 light-years away. A survey in 2015 did not find any stellar companions in orbit around it, although a red dwarf companion with a temperature 4000+100
−350 K is suspected on wide orbit.
HAT-P-18 is a K-type main-sequence star about 530 light-years away. The star is very old and has a concentration of heavy elements similar to solar abundance. A survey in 2015 detected very strong starspot activity on HAT-P-18.
HAT-P-16 is a F-type main-sequence star about 740 light-years away. The star has a concentration of heavy elements slightly higher than solar abundance, and low starspot activity. The survey in 2015 have failed to find any stellar companions to it. The spectral analysis in 2014 have discovered the HAT-P-16 has a carbon to oxygen molar ratio of 0.58±0.08, close to Sun`s value of 0.55.
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.