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 | ||
BD+49 828 b | 1.6 | 2590 | 4.2 | radial vel. | 1460 | 1.52 | 4943 | [9] | ||
COROT-28b | 0.484 | 0.955 | 5.20851 | 0.0603 | transit | 1800 | 1.01 | 5150 | [10] | |
COROT-29b | 0.85 | 0.9 | 2.85057 | 0.0386 | transit | 2500 | 0.97 | 5260 | [10] | |
COROT-33b | 59.2 | 1.1 | 5.819143 | 0.0579 | transit | 2270 | 0.86 | 5225 | Unusually short period brown dwarf [11] | |
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 [12] | ||
Gliese 1132 b | 0.0051 | 0.103 | 1.62893 | 580 | transit | 39.3 | 0.18 | 3270 | [13] | |
HAT-P-50b | 1.35 | 1.288 | 3.1220109 | 0.0453 | 1862 | transit | 1620 | 1.27 | 6280 | [14] |
HAT-P-51b | 0.309 | 1.293 | 4.2180278 | 0.05069 | 1192 | transit | 1500 | 0.98 | 5449 | [14] |
HAT-P-52b | 0.818 | 1.009 | 2.7535953 | 0.03694 | 1218 | transit | 1260 | 0.89 | 5131 | [14] |
HAT-P-53b | 1.484 | 1.318 | 1.9616241 | 0.03159 | 1778 | transit | 2350 | 1.09 | 5956 | [14] |
HAT-P-55b | 0.582 | 1.182 | 3.5852467 | 0.04604 | 1313 | transit | 1600 | 1.01 | 5808 | [15] |
HAT-P-56b | 2.18 | 1.466 | 2.7908327 | 0.0423 | 1840 | transit | 1013 | 1.3 | 6566 | [16] |
HAT-P-57b | 1.85 | 1.413 | 2.465295 | 0.0406 | 2200 | transit | 990 | 1.47 | 7500 | [17] |
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 | [18] |
HATS-8b | 0.138 | 0.873 | 3.583893 | 0.04667 | 1324 | transit | 2700 | 1.06 | 5679 | [19] Intensely blue-colored planet [20] |
HATS-9b | 0.837 | 1.065 | 1.9153073 | 0.03048 | 1823 | transit | 2030 | 1.03 | 5366 | [21] |
HATS-10b | 0.526 | 0.969 | 3.312846 | 0.04491 | 1407 | transit | 1620 | 1.1 | 5880 | [21] |
HATS-13b | 0.543 | 1.212 | 3.0440499 | 0.04057 | 1244 | transit | 1550 | 0.96 | 5523 | [22] |
HATS-14b | 1.071 | 1.039 | 2.7667641 | 0.03815 | transit | 1670 | 0.97 | 5346 | [22] | |
HATS-15b | 2.17 | 1.105 | 1.74748753 | 0.02712 | transit | 2250 | 0.87 | 5311 | [23] | |
HATS-16b | 3.27 | 1.3 | 2.686502 | 0.03744 | transit | 2520 | 0.97 | 5738 | [23] | |
HATS-17b | 1.338 | 0.777 | 16.254611 | 0.1308 | 814 | transit | 1110 | 1.13 | 5846 | [24] |
HD 1605 b | 0.96 | 577.9 | 1.48 | radial vel. | 276 | 1.31 | 4757 | Subgiant host star [25] | ||
HD 1605 c | 3.48 | 2111 | 3.52 | radial vel. | 276 | 1.31 | 4757 | Subgiant host star [25] | ||
HD 1666 b | 6.43 | 270 | 0.94 | radial vel. | 360.8 | 1.5 | 6317 | [25] | ||
HD 7924 c | 0.02473 | 15.299 | 0.1134 | 584 | radial vel. | 54.9 | 0.83 | 5075 | [26] | |
HD 7924 d | 0.02026 | 24.451 | 0.1551 | 499 | radial vel. | 54.9 | 0.83 | 5075 | [26] | |
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 | [27] | ||
HD 33844 b | 1.96 | 551.4 | 1.6 | radial vel. | 329 | 1.78 | 4861 | [28] | ||
HD 33844 c | 1.75 | 916 | 2.24 | radial vel. | 329 | 1.78 | 4861 | [28] | ||
HD 95127 b | 5.01 | 482 | 1.28 | radial vel. | 1080 | 1.2 | 4218 | [9] | ||
HD 95872 b | 4.6 | 4375 | 5.2 | radial vel. | 236 | 0.95 | 5312 | [29] | ||
HD 145934 b | 2.28 | 2730 | 4.6 | radial vel. | 748 | 1.75 | [30] | |||
HD 164595 b | 0.05078 | 40 | 0.23 | radial vel. | 94.4 | 0.99 | 5790 | [31] | ||
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 [32] | |||
HD 216536 b | 1.47 | 148.6 | 0.609 | radial vel. | 1240 | 1.36 | 4639 | [9] | ||
HD 219134 b | 0.01491 | 0.143 | 3.092926 | 0.03876 | radial vel. | 21.4 | 0.81 | 4699 | [33] | |
HD 219134 c | 0.01372 | 0.135 | 6.76458 | 0.0653 | radial vel. | 21.4 | 0.81 | 4699 | [33] | |
HD 219134 d | 0.05088 | 0.144 | 46.859 | 0.237 | radial vel. | 21.4 | 0.81 | 4699 | [33] | |
HD 219134 f | 0.02297 | 0.117 | 22.717 | 0.1463 | radial vel. | 21.4 | 0.81 | 4699 | [33] | |
HD 219134 g | 0.034 | 94.2 | 0.3753 | radial vel. | 21.4 | 0.81 | 4699 | [33] | ||
HD 219134 h | 0.308±0.014 | 2100.6±2.9 | 3.11 | radial vel. | 21.4 | 0.81 | 4699 | [33] [34] | ||
HIP 65891 b | 6 | 1084.5 | 2.81 | radial vel. | 492 | 2.5 | 5000 | [35] Host star also known as HD 117253 | ||
HIP 107773 b | 1.98 | 144.3 | 0.72 | radial vel. | 344 | 2.42 | 4945 | [35] Host star also known as HD 207229 | ||
K2-3b | 0.194 | 10.05449 | 0.0769 | 463 | transit | 143.9 | 0.6 | 3896 | [36] [37] | |
K2-3c | 0.165 | 24.64354 | 0.1399 | 344 | transit | 143.9 | 0.6 | 3896 | [36] [37] | |
K2-3d | 0.135 | 44.55983 | 0.2076 | 282 | transit | 143.9 | 0.6 | 3896 | [36] [37] | |
K2-4b | 0.211 | 10.00329 | 0.0777 | transit | 761 | 0.63 | 4197 | [36] | ||
K2-5b | 0.17 | 5.73594 | 0.0532 | transit | 666 | 0.61 | 3930 | [36] | ||
K2-5c | 0.202 | 10.93241 | 0.0818 | transit | 666 | 0.61 | 3930 | [36] | ||
K2-6b | 0.223 | 30.94191 | 0.1898 | transit | 1040 | 0.97 | 5850 | [36] | ||
K2-7b | 0.238 | 28.67992 | 0.1814 | transit | 2460 | 0.97 | 5772 | [36] | ||
K2-8b | 0.319 | 10.35239 | 0.0856 | transit | 1330 | 0.78 | 4870 | [36] Unconfirmed in 2016 [38] | ||
K2-9b | 0.201 | 18.4498 | 0.091 | transit | 360 | 0.3 | 3390 | [36] | ||
K2-10b | 0.08495 | 0.343 | 19.3044 | transit | 880 | 0.92 | 5620 | [36] | ||
K2-11b | 0.674 | 39.93767 | 0.2257 | transit | 6590 | 1.35 | 5433 | [36] | ||
K2-12b | 0.208 | 8.28212 | 0.0802 | transit | 960 | 1.01 | 5800 | [36] | ||
K2-13b | 0.169 | 39.91488 | 0.2114 | transit | 950 | 0.8 | 5698 | [36] | ||
K2-14b | 0.429 | 8.36802 | 0.0627 | transit | 710 | 0.47 | 3789 | [36] | ||
K2-15b | 0.221 | 11.8104 | 0.091 | transit | 1430 | 0.72 | 5131 | [36] | ||
K2-16b | 0.18 | 7.6188 | 0.0667 | 658 | transit | 1060 | 0.68 | 4742 | [36] | |
K2-16c | 0.227 | 19.07863 | 0.1229 | 485 | transit | 1060 | 0.68 | 4742 | [36] | |
K2-17b | 0.199 | 17.96753 | 0.119 | transit | 440 | 0.71 | 4320 | [36] | ||
K2-18b | 0.2 | 32.94488 | 0.1491 | transit | 124.2 | 0.41 | 3503 | [36] | ||
K2-19b | 0.090 | 0.691 | 7.9194 | 0.074 | 854 | transit | 950 | 0.93 | 5430 | [36] [39] |
K2-19c | 0.081 | 0.434 | 11.90715 | 0.0971 | 745 | transit | 950 | 0.93 | 5430 | [36] [39] |
K2-21b | 0.142 | 9.32414 | 0.0731 | transit | 210 | 0.64 | 4043 | [40] | ||
K2-21c | 0.171 | 15.5012 | 0.1026 | transit | 210 | 0.64 | 4043 | [40] | ||
K2-22b | 1.4 | 0.223 | 0.381078 | 0.0088 | transit | 730 | 0.6 | 3830 | [41] | |
K2-25b | 0.306 | 3.484552 | transit | 149 | 0.29 | 3180 | Parent star, also known as EPIC 210490365, belongs to Hyades [42] | |||
K2-28b | 0.207 | 2.260455 | 0.0214 | transit | 170 | 0.26 | 3214 | [43] | ||
KELT-4Ab | 0.902 | 1.699 | 2.9895932 | 0.04317 | 1827 | transit | 680 | 1.2 | 6206 | [44] |
KELT-6c | 3.71 | 1276 | 2.39 | radial vel. | 720 | 1.13 | 6272 | [45] | ||
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 | [46] [47] |
KELT-8b | 0.867 | 1.86 | 3.24406 | 0.04571 | 1675 | transit | 770 | 1.21 | 5754 | [48] |
KELT-10b | 0.679 | 1.399 | 4.1662739 | 0.0525 | 1377 | transit | 600 | 1.11 | 5948 | [49] |
KELT-14b | 1.284 | 1.743 | 1.7100566 | 0.03005 | transit | 870 | 1.24 | 5720 | Host star also known as WASP-122 [50] [51] | |
KELT-15b | 0.91 | 1.443 | 3.329441 | 0.04613 | transit | 950 | 1.18 | 6003 | [50] | |
Kepler-455b | 0.616 | 1322.3 | transit | 4100 | 0.98 | 6175 | [52] Host star also known as KIC 3558849 | |||
Kepler-460b | 0.571 | 440.7813 | transit | 4330 | 1.07 | 6340 | [52] Host star also known as KIC 5437945 | |||
Kepler-456b | 0.589 | 1320.1 | transit | 2480 | 0.98 | 6258 | [52] Host star also known as KIC 5951458 | |||
Kepler-458b | 0.41 | 572.3847 | transit | 5500 | 0.98 | 6065 | [52] Host star also known as KIC 9663113 | |||
Kepler-459b | 0.491 | 854.083 | transit | 5000 | 1.01 | 6091 | [52] Host star also known as KIC 10525077 | |||
Kepler-457b | 0.366 | 31.8099 | transit | 3610 | 1.04 | 6474 | [52] Host star also known as KIC 8540376 | |||
Kepler-457c | 0.214 | 75.2 | transit | 3610 | 1.04 | 6474 | [52] 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 [53] | |
KOI-4427.01 | 0.208 | 147.6606 | 0.42 | transit | 783 | 0.526 | 3813 | Potentially habitable exoplanet, false positive probability 0.8%. [54] Also a red dwarf in the system. [55] | ||
Kepler-92d | 0.184 | 49.3568 | transit | 1580±17 | 1.21 | 5883 | [56] | |||
Kepler-433b | 2.82 | 1.45 | 5.33408384 | 0.0679 | transit | 6100 | 1.46 | 6360 | Host star also known as KOI-206 [57] | |
Kepler-434b | 2.86 | 1.13 | 12.8747099 | 0.1143 | transit | 4000 | 1.2 | 5977 | Host star also known as KOI-614 [57] | |
Kepler-435b | 0.84 | 1.99 | 8.6001536 | 0.0948 | transit | 6800 | 1.54 | 6161 | Host star also known as KOI-680 [57] | |
Kepler-436b | 0.24 | 64.00205 | 0.339 | transit | 2020 | 0.73 | 4651 | Host star also known as KOI-2529 [54] | ||
Kepler-437b | 0.19 | 66.65062 | 0.288 | transit | 1360 | 0.71 | 4551 | Host star also known as KOI-3255 [54] | ||
Kepler-438b | 0.1 | 35.23319 | 0.166 | transit | 470 | 0.54 | 3748 | Host star also known as KOI-3284 [54] | ||
Kepler-439b | 0.2 | 178.1396 | 0.563 | transit | 2260 | 0.88 | 5431 | Host star also known as KOI-4005 [54] | ||
Kepler-440b | 0.17 | 101.11141 | 0.242 | transit | 850 | 0.57 | 4134 | Host star also known as KOI-4087 [54] | ||
Kepler-441b | 0.15 | 207.2482 | 0.64 | transit | 930 | 0.57 | 4340 | Host star also known as KOI-4622 [54] | ||
Kepler-442b | 0.12 | 112.3053 | 0.409 | transit | 1120 | 0.61 | 4402 | Potentially habitable exoplanet, host star also known as KOI-4742 [54] | ||
Kepler-443b | 0.21 | 177.6693 | 0.495 | transit | 2540 | 0.74 | 4723 | Host star also known as KOI-4745 [54] | ||
Kepler-444b | 0.036 | 3.6001053 | 0.04178 | transit | 116 | 0.76 | 5046 | [56] | ||
Kepler-444c | 0.044 | 4.5458841 | 0.04881 | transit | 116 | 0.76 | 5046 | [56] | ||
Kepler-444d | 0.047 | 6.189392 | 0.06 | transit | 116 | 0.76 | 5046 | [56] | ||
Kepler-444e | 0.049 | 7.743493 | 0.0696 | transit | 116 | 0.76 | 5046 | [56] | ||
Kepler-444f | 0.066 | 9.740486 | 0.0811 | transit | 116 | 0.76 | 5046 | [56] | ||
Kepler-445b | 0.14 | 2.984151 | transit | 290 | 0.18 | 3157 | [58] | |||
Kepler-445c | 0.22 | 4.871229 | transit | 290 | 0.18 | 3157 | [58] | |||
Kepler-445d | 0.11 | 8.15275 | transit | 290 | 0.18 | 3157 | [58] | |||
Kepler-446b | 0.13 | 1.565409 | transit | 390 | 0.22 | 3359 | [58] | |||
Kepler-446c | 0.1 | 3.036179 | transit | 390 | 0.22 | 3359 | [58] | |||
Kepler-446d | 0.12 | 5.148921 | transit | 390 | 0.22 | 3359 | [58] | |||
Kepler-447b | 1.37 | 1.65 | 7.79430132 | 0.0769 | transit | 881±6 | 1 | 5493 | [59] | |
Kepler-449b | 0.183 | 12.58242 | transit | 848 | 0.97 | [56] Stellar companion in system [60] | ||||
Kepler-449c | 0.247 | 33.6727 | transit | 848 | 0.97 | [56] Stellar companion in system [60] | ||||
Kepler-450b | 0.548 | 28.454851 | transit | 1506±17 | 1.35 | [56] | ||||
Kepler-450c | 0.234 | 15.413135 | transit | 1506±17 | 1.35 | [56] | ||||
Kepler-450d | 0.075 | 7.51464 | transit | 1506±17 | 1.35 | [56] | ||||
Kepler-454b | 0.02152 | 0.211 | 10.57375339 | 0.0954 | transit | 758±4 | 1.03 | 5701 | [61] | |
Kepler-454c | 4.46 | 523.9 | radial vel. | 758±4 | 1.03 | 5701 | [61] | |||
MOA-2010-BLG-353Lb | 0.27 | 1.72 | microlensing | 21000 | 0.18 | [62] | ||||
MOA-2011-BLG-028Lb | 0.09439 | 4.14 | microlensing | 24100 | 0.75 | [63] | ||||
MOA-2013-BLG-605Lb | 0.01007 | 0.94 | microlensing | 0.03 | [64] | |||||
OGLE-2012-BLG-0563Lb | 0.39 | 0.9 | microlensing | 4200 | 0.34 | [65] | ||||
OGLE-2015-BLG-0966Lb | 0.06607 | 2.1 | microlensing | 8200 | 0.38 | [66] [67] | ||||
Psi1 Draconis Bb | 1.53 | 3117 | 4.43 | radial vel. | 72.3 | 1.19 | 6212 | [29] | ||
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 | [68] [69] | ||
WASP-41c | 3.18 | 421 | 1.07 | 241 | radial vel. | 590 | 0.93 | 5545 | [70] | |
WASP-47c | 1.57 | 580.7 | 1.41 | 247 | radial vel. | 650 | 1.11 | 5576 | [70] | |
WASP-47d | 0.05286 | 0.331 | 9.095 | 0.088 | transit | 650 | 1.11 | 5576 | [71] [70] | |
WASP-47e | 0.02863 | 0.162 | 0.789636 | 0.0173 | transit | 650 | 1.11 | 5576 | [71] [70] | |
WASP-120b | 4.85 | 1.473 | 3.6112706 | 0.0514 | 1890 | transit | 1430 | 1.39 | 6450 | [51] |
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 | [72] |
WASP-123b | 0.899 | 1.318 | 2.9776412 | 0.04263 | 1510 | transit | 700 | 1.17 | 5740 | [51] |
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 | [73] | |
Wolf 1061b | 0.00601 | 4.8869 | 0.0375 | radial vel. | 14.04±0.03 | 0.29 | 3342 | [74] | ||
Wolf 1061c | 0.01073 | 17.8719 | 0.089 | radial vel. | 14.04±0.03 | 0.29 | 3342 | Potentially habitable exoplanet [74] | ||
Wolf 1061d | 0.02423 | 217.21 | 0.47 | radial vel. | 14.04±0.03 | 0.29 | 3342 | [74] |
Hot Jupiters are a class of gas giant exoplanets that are inferred to be physically similar to Jupiter but that have very short orbital periods. The close proximity to their stars and high surface-atmosphere temperatures resulted in their informal name "hot Jupiters".
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.
HAT-P-27, also known as WASP-40, is the primary of a binary star system about 659 light-years away. It is a G-type main-sequence star. The star's age is similar to the Sun's at 4.4 billion years. HAT-P-27 is enriched in heavy elements, having a 195% concentration of iron compared to the Sun.
A Mini-Neptune is a planet less massive than Neptune but resembling Neptune in that it has a thick hydrogen-helium atmosphere, probably with deep layers of ice, rock or liquid oceans.
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.
WASP-37 is a yellow main sequence star in the constellation of Virgo.
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 725 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.