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Kepler-40

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438:. 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 553:
Kepler-40 was, at the time of its discovery, the largest and most evolved star known to host a transiting planet. It is the sixth known host star with a radius over 1.8 times that of the Sun and a transiting planet, after stars that include
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After Kepler-40b was confirmed, the French and Swiss science team worked to clarify the stellar parameters its star by analyzing the star's spectrum as collected by SOPHIE. Kepler-40 is the sixth known planetary host star with a
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of 14.58, it was also dimmer than any star previously recognized by Kepler. Because of its low apparent magnitude, Kepler-40 cannot be seen with the
442:; 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 509:
of more than 1.8 times that of the Sun. At the time of its discovery, Kepler-40 was the most evolved star known to have a transiting planet.
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of 1620 K, over six times hotter than the equilibrium temperature of Earth. It orbits its star every 6.87 days at a distance of 0.081
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that is 2.2 times that of Jupiter's, the rough equivalent of 700 Earths. The planet also has a radius that is 1.17 times
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measurements on the star. Collected data was then checked to see if it corresponded with that of a closely orbiting
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planet Kepler-40b, and later had their results published in a scientific journal on January 4, 2011.
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Data on Kepler-40 was analyzed by a team of French and Swiss astronomers, who first tested for
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was publicly released, including data on Kepler-40 and its possible transiting companion.
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or that of a planet; it was found to be that of a planet, leading to the confirmation of
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is the first (and only) planet discovered so far in the orbit of Kepler-40. It has a
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Homogeneous studies of transiting extrasolar planets – V. New results for 38 planets
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of = 0.10 means that Kepler-40 has 1.26 times as much iron as the Sun does.
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on January 4, 2011, after being submitted on September 15, 2010.
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Data Release 3. Summary of the content and survey properties"
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Kepler-40 and its exoplanet were published in the journal
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Santerne, A.; Díaz, R.F. (2011). "SOPHIE velocimetry of
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Vallenari, A.; et al. (Gaia collaboration) (2023).
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and a density of 1.68 grams/cm. Kepler-40b has an
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Archived from 565:Kepler-40 lies approximately 2200 14: 794:Gaia DR3 record for this source 612:The Kepler-40 planetary system 220:0.4550 ± 0.0168  458:spacecraft, an Earth-trailing 1: 489:in southern France to gather 664: 659: 654: 641: 628: 623: 616: 530:star that is 1.48 times the 2969:Planetary transit variables 867:10.1051/0004-6361/201015764 779:10.1051/0004-6361/202243940 483:SOPHIE échelle spectrograph 2995: 2974:Kepler objects of interest 836:Astronomy and Astrophysics 748:Astronomy and Astrophysics 534:of the Sun and 2.13 times 515:Astronomy and Astrophysics 487:Haute-Provence Observatory 430:star in the constellation 972: 468:Kepler Object of Interest 398: 391: 384: 380: 257: 252: 248: 164: 157: 88: 26: 977:List of stars in Cygnus 966:Constellation of Cygnus 859:2011A&A...528A..63S 770:2023A&A...674A...1G 602:equilibrium temperature 95:Evolutionary stage 78:Apparent magnitude 2964:Cygnus (constellation) 2581:ZTF J203349.8+322901.1 833:transit candidates". 540:effective temperature 450:Observational history 2363:North America Nebula 620:(in order from star) 422:, formerly known as 613: 399:Database references 289:2.13 (± 0.06)  23: 2466:Soap Bubble Nebula 611: 575:apparent magnitude 538:. The star has an 386:Other designations 338:6510 (± 100)  269:1.48 (±0.06)  105:Spectral type 21: 2946: 2945: 2942: 2941: 2906: 2905: 2589: 2588: 2517: 2516: 2510: 2299: 2275: 2274: 2164: 2163: 713: 712: 652: 639: 621: 440:Kepler spacecraft 417: 416: 373:2.8 (± 0.3)  240:(2,200 ± 80  235:7,200 ± 300  2986: 2979:F-type subgiants 2917: 2600: 2528: 2504: 2313: 2293: 2177: 992: 959: 952: 945: 936: 929: 928: 926: 924: 909: 894: 889: 880: 878: 852: 826: 801: 791: 781: 763: 735: 702: 683: 646: 633: 619: 614: 585:Planetary system 526:Kepler-40 is an 361: 360: 322: 321: 199: 195: 183: 179: 89:Characteristics 81: 61: 56: 27:Observation data 24: 2994: 2993: 2989: 2988: 2987: 2985: 2984: 2983: 2949: 2948: 2947: 2938: 2902: 2851: 2585: 2554: 2513: 2488: 2484:Crescent Nebula 2470: 2416:IRAS 20324+4057 2411:IRAS 19475+3119 2387: 2344: 2302: 2282: 2271: 2203: 2171: 2160: 2151:WISE J2000+3629 2061:GSC 03949-00967 1999: 1931: 1593: 1565: 1522: 1489: 1326: 1158: 981: 968: 963: 933: 932: 922: 920: 911: 910: 897: 890: 883: 828: 827: 804: 737: 736: 723: 718: 700: 686: 681: 645: 632: 618: 598:that of Jupiter 587: 524: 522:Characteristics 491:radial velocity 479:false positives 452: 394: 359: 356: 355: 354: 320: 317: 316: 315: 304:Surface gravity 296: 293: 276: 273: 239: 197: 192: 181: 84:14.58 (± 0.02) 76: 59: 54:Right ascension 52: 28: 17: 12: 11: 5: 2992: 2990: 2982: 2981: 2976: 2971: 2966: 2961: 2951: 2950: 2944: 2943: 2940: 2939: 2937: 2936: 2931: 2925: 2923: 2914: 2908: 2907: 2904: 2903: 2901: 2900: 2895: 2890: 2885: 2880: 2875: 2870: 2865: 2859: 2857: 2853: 2852: 2850: 2849: 2844: 2839: 2834: 2829: 2824: 2819: 2814: 2809: 2804: 2799: 2794: 2789: 2784: 2779: 2774: 2769: 2764: 2759: 2754: 2749: 2744: 2739: 2734: 2729: 2724: 2719: 2714: 2709: 2704: 2699: 2694: 2689: 2684: 2679: 2674: 2669: 2664: 2659: 2654: 2649: 2644: 2639: 2634: 2629: 2624: 2619: 2614: 2608: 2606: 2597: 2591: 2590: 2587: 2586: 2584: 2583: 2578: 2573: 2568: 2562: 2560: 2556: 2555: 2553: 2552: 2547: 2542: 2536: 2534: 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1126: 1121: 1116: 1111: 1106: 1101: 1096: 1094:π (Azelfafage) 1091: 1086: 1081: 1076: 1071: 1066: 1061: 1056: 1051: 1046: 1041: 1036: 1031: 1026: 1021: 1016: 1011: 1006: 1000: 998: 989: 983: 982: 980: 979: 973: 970: 969: 964: 962: 961: 954: 947: 939: 931: 930: 919:on 27 May 2010 895: 881: 802: 720: 719: 717: 714: 711: 710: 707: 697: 694: 691: 688: 684: 677: 669: 668: 663: 658: 653: 643:Orbital period 640: 630:Semimajor axis 627: 622: 586: 583: 523: 520: 451: 448: 415: 414: 409: 401: 400: 396: 395: 392: 389: 388: 382: 381: 378: 377: 371: 363: 362: 357: 351: 343: 342: 336: 328: 327: 318: 312: 299: 298: 294: 291: 287: 279: 278: 274: 271: 267: 259: 258: 255: 254: 250: 249: 246: 245: 233: 225: 224: 218: 209: 208: 175: 166: 165: 162: 161: 155: 154: 151: 144: 143: 140: 133: 132: 129: 122: 121: 118: 111: 110: 107: 101: 100: 99:subgiant star 97: 91: 90: 86: 85: 82: 73: 72: 69: 63: 62: 57: 49: 48: 43: 37: 36: 15: 13: 10: 9: 6: 4: 3: 2: 2991: 2980: 2977: 2975: 2972: 2970: 2967: 2965: 2962: 2960: 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Retrieved 917:the original 840: 834: 830: 751: 747: 741: 672: 656:Eccentricity 588: 564: 552: 525: 513: 511: 503: 476: 453: 423: 419: 418: 404: 366: 346: 331: 319:−0.017 307: 302: 282: 262: 228: 212: 169: 18: 2883:HD 191806 b 2873:HD 187123 b 2868:HD 185269 b 2507:Veil Nebula 2505:(including 2502:Cygnus Loop 2373:Sadr Region 2330:Barnard 147 2325:Barnard 146 2294:(including 2217:Berkeley 86 2181:Association 2136:SPECULOOS-3 2086:KIC 9832227 2081:KIC 8462852 2046:G79.29+0.46 2016:BD+40° 4210 1024:ε (Aljanah) 1019:δ (Fawaris) 1009:β (Albireo) 661:Inclination 571:light years 548:metallicity 495:binary star 444:Hot Jupiter 358:−0.10 348:Metallicity 333:Temperature 149:color index 138:color index 127:color index 116:color index 67:Declination 2953:Categories 2722:64b (PH1b) 2595:Exoplanets 2406:Egg Nebula 2237:Messier 39 2232:Messier 29 2199:Cygnus OB9 2194:Cygnus OB7 2189:Cygnus OB2 2041:Cygnus X-3 2036:Cygnus X-1 2021:BD+43 3654 761:2208.00211 716:References 693:6.8731697 590:Kepler-40b 536:its radius 499:Kepler-40b 472:photometer 436:Kepler-40b 306:(log  198:−6.768(20) 182:−1.469(22) 159:Astrometry 22:Kepler-40 2863:b Cygni b 2571:4C +48.48 2393:Planetary 2281:Molecular 2156:Wolf 1069 2126:N6946-BH1 2011:AFGL 2591 1164:Flamsteed 1004:α (Deneb) 875:119275985 850:1101.0196 788:244398875 679:2.2  617:Companion 579:naked eye 420:Kepler-40 80: (V) 2912:Exomoons 2893:KELT-20b 2576:Cygnus A 2523:Galaxies 2461:NGC 7048 2456:NGC 7027 2451:NGC 7026 2446:NGC 7008 2441:NGC 6884 2436:NGC 6881 2431:NGC 6826 2401:Abell 78 2358:NGC 6914 2291:Cygnus X 2267:NGC 6910 2262:NGC 6871 2257:NGC 6866 2252:NGC 6834 2247:NGC 6819 2242:NGC 6811 2172:clusters 2066:HAT-P-17 2056:G 208-45 2051:G 208-44 1812:86 (PH2) 1767:64 (PH1) 1332:Variable 1014:γ (Sadr) 560:Kepler-7 556:Kepler-5 542:of 6510 426:, is an 295:☉ 275:☉ 230:Distance 214:Parallax 2934:1708b I 2929:1625b I 2898:TrES-5b 2888:KELT-9b 2383:Sh2-106 2378:Sh2-101 2335:IC 5146 2308:Nebulae 2227:IC 5146 2146:WASP-48 2121:MWC 349 2116:KOI-256 2076:KELT-20 855:Bibcode 843:: A63. 766:Bibcode 569:(7,200 567:parsecs 485:at the 464:transit 424:KOI-428 253:Details 34:Equinox 2921:Kepler 2604:Kepler 2566:3C 438 2283:clouds 2111:KOI-81 2106:KOI-74 2071:KELT-9 1599:Kepler 1571:Gliese 1561:197037 1556:191806 1551:188753 1546:187123 1541:185435 1536:185269 1307:71 (g) 1302:68 (A) 1297:63 (f) 1287:59 (f) 1237:29 (b) 1232:28 (b) 1227:27 (b) 1222:26 (e) 1207:20 (d) 1197:16 (c) 873:  831:Kepler 798:VizieR 786:  754:: A1. 690:0.081 666:Radius 528:F-type 507:radius 456:Kepler 432:Cygnus 428:F-type 406:SIMBAD 323:  284:Radius 200:  196:  184:  180:  153:0.266 142:0.242 120:-0.31 46:Cygnus 2856:Other 2847:1708b 2837:1649b 2832:1658b 2827:1652b 2822:1625b 2817:1520b 2812:1229b 2559:Other 2426:M1-92 2340:L1014 2296:DR 21 2101:KOI-5 2004:Other 1485:V2513 1480:V2214 1475:V1974 1470:V1794 1465:V1668 1460:V1500 1455:V1489 1450:V1334 1445:V1191 1440:V1143 1435:V1057 1430:V1027 996:Bayer 987:Stars 923:3 May 871:S2CID 845:arXiv 792: 784:S2CID 756:arXiv 699:85.47 353:0.10 314:3.812 194:Dec.: 131:0.87 109:F5IV 30:Epoch 2807:737b 2802:560b 2797:452b 2792:451b 2787:432b 2782:419b 2777:409b 2767:371b 2752:186b 2550:7013 2545:6946 2540:6801 2350:H II 2317:Dark 2222:DR 6 2209:Open 2170:Star 1970:138a 1927:1708 1922:1649 1917:1625 1912:1520 1907:1229 1589:1245 1518:8193 1513:7912 1508:7767 1503:7633 1425:V476 1420:V404 1415:V389 1410:V380 925:2011 742:Gaia 703:0.94 696:(0) 649:days 625:Mass 594:mass 558:and 532:mass 460:NASA 412:data 264:Mass 147:J−K 136:J−H 125:R−I 114:V−R 2747:87c 2742:78b 2737:70b 2732:69b 2727:68b 2717:61b 2712:56b 2707:47b 2702:41b 2697:40b 2692:39b 2687:36b 2682:34b 2677:33b 2672:32b 2667:28b 2662:23b 2657:22b 2652:17b 2647:16b 2642:15b 2637:11b 2532:NGC 2494:SNR 1995:150 1990:148 1985:147 1980:142 1975:140 1965:137 1960:136 1955:135 1950:134 1945:133 1902:737 1897:560 1892:452 1887:451 1882:445 1877:432 1872:419 1867:411 1862:385 1857:371 1852:289 1847:223 1842:186 1837:182 1832:167 1827:107 1584:806 1579:777 863:doi 841:528 796:at 774:doi 752:674 375:Gyr 368:Age 325:cgs 222:mas 216:(π) 202:mas 186:mas 178:RA: 173:(μ) 2955:: 2632:6b 2627:5b 2622:3c 2617:3b 2612:2b 2476:WR 1937:WR 1822:89 1817:87 1807:84 1802:80 1797:78 1792:70 1787:69 1782:68 1777:67 1772:66 1762:63 1757:61 1752:56 1747:51 1742:47 1737:45 1732:44 1727:43 1722:42 1717:41 1712:40 1707:39 1702:36 1697:35 1692:34 1687:33 1682:32 1677:31 1672:29 1667:28 1662:27 1657:23 1652:22 1647:18 1642:17 1637:16 1632:15 1627:11 1528:HD 1495:HR 1405:KY 1400:CH 1395:BI 1390:BC 1385:AZ 1380:TT 1375:SU 1370:SS 1365:RW 1322:75 1317:74 1312:72 1292:61 1282:57 1277:56 1272:55 1267:52 1262:47 1257:41 1252:39 1247:35 1242:33 1217:23 1212:22 1202:17 1192:15 898:^ 884:^ 869:. 861:. 853:. 839:. 805:^ 782:. 772:. 764:. 750:. 746:. 724:^ 709:— 636:AU 608:. 606:AU 581:. 562:. 501:. 242:pc 237:ly 206:yr 190:yr 2878:c 2842:c 2772:c 2762:f 2757:e 2509:) 2298:) 1622:6 1617:5 1612:3 1607:2 1360:Y 1355:X 1350:W 1345:T 1340:R 1187:9 1182:8 1177:4 1172:2 1154:Q 1149:P 1144:ω 1139:ω 1134:ψ 1129:χ 1124:φ 1119:υ 1114:τ 1109:σ 1104:ρ 1099:π 1089:ο 1084:o 1079:o 1074:ξ 1069:ν 1064:μ 1059:λ 1054:κ 1049:ι 1044:ι 1039:θ 1034:η 1029:ζ 958:e 951:t 944:v 927:. 877:. 865:: 857:: 847:: 800:. 790:. 776:: 768:: 758:: 740:" 705:° 701:± 685:J 682:M 674:b 651:) 647:( 638:) 634:( 544:K 340:K 310:) 308:g 292:R 272:M 244:) 204:/ 188:/

Index

Epoch
Equinox
Constellation
Cygnus
Right ascension
Declination
Apparent magnitude
Evolutionary stage
Spectral type
color index
color index
color index
color index
Astrometry
Proper motion
mas
yr
mas
yr
Parallax
mas
Distance
ly
pc
Mass
M
Radius
R
Surface gravity
cgs

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