Knowledge (XXG)

LTT 1445

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In 2022, a planetary transmission spectrum showed no evidence for an atmosphere, although an atmosphere with high altitude hazes cannot be ruled out yet. LTT 1445 Ab likely has a rocky composition, and because it orbits close to the M-dwarf, it has an
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Earth masses. Although it transits the star too, its smaller size made it difficult to detect before the radial velocity measurements, and still makes it difficult to estimate its exact size. The planets orbit near a 12:7
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Henry, Todd J.; Jao, Wei-Chun; Winters, Jennifer G.; Dieterich, Sergio B.; Finch, Charlie T.; Ianna, Philip A.; Riedel, Adric R.; Silverstein, Michele L.; Subasavage, John P.; Vrijmoet, Eliot Halley (June 2018).
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with one another - Ac orbiting 11.988 times for every 7 orbits Ab makes - oscillating one full orbit away from a 'perfect' resonance every 104 years. The planet's existence was independently confirmed in 2022.
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image showing all three stars. Upper left is LTT 1445 A and in the lower right part of the image is the LTT 1445 BC pair.
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allowed a more precise determination of the planet's size, supporting a rocky composition for both planets. Its equilibrium temperature is
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Lavie, B.; et al. (2023). "Planetary system around LTT 1445A unveiled by ESPRESSO:Multiple planets in a triple M-dwarf system".
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LTT 1445 Ab takes 5 days to orbit its star, which in turn orbits two sibling stars, making a total of three stars in the system.
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of the system. The existence of transiting planets suggests that the entire system is co-planar, with orbits in one plane.
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and orbit each other with a period of about 250 years. The BC pair orbit each other about every 36 years in an
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the star every 5.36 days, and another found in 2021 that transits the star every 3.12 days, close to a 12:7
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A third planetary candidate on a 24.3-day orbit, LTT 1445 Ad, was found in 2022. This is a possibly rocky
1084: 487: 203: 1852:"EvryFlare. I. Long-term Evryscope Monitoring of Flares from the Cool Stars across Half the Southern Sky" 1739:"HST/WFC3 Light Curve Supports a Terrestrial Composition for the Closest Exoplanet to Transit an M Dwarf" 2775: 2479: 2363: 845: 651: 437: 2070: 2011: 1873: 1816: 1762: 1682: 1604: 1499: 1161: 1019: 968: 925: 397: 301: 2686: 2616: 1166: 1583:"Three Red Suns in the Sky: A Transiting, Terrestrial Planet in a Triple M-dwarf System at 6.9 pc" 1063:
A second planet, LTT 1445 Ac, was also found in 2021 on a 3.12 day orbital period, with a mass of
2060: 2029: 2001: 1899: 1863: 1832: 1806: 1752: 1708: 1672: 1640: 1594: 1517: 1489: 180: 124: 1951: 2049:"Ground-based Optical Transmission Spectroscopy of the Nearby Terrestrial Exoplanet LTT 1445Ab" 3184: 2717: 2160: 1891: 1700: 1632: 1141: 1076: 964: 929: 462: 55: 890: 3174: 2333: 2328: 2323: 2318: 2243: 2078: 2019: 1881: 1824: 1820: 1770: 1690: 1622: 1612: 1507: 1503: 817: 687: 608: 285: 2188: 971:(e= ~0.5). The alignment of the three stars and the edge-on orbit of the BC pair suggests 621: 376: 226: 151: 95: 2074: 2015: 1877: 1766: 1686: 1608: 3179: 3161: 2223: 2047:
Diamond-Lowe, Hannah; Mendonca, Joao M.; Charbonneau, David; Buchhave, Lars A. (2023).
1990:"A Second Planet Transiting LTT~1445A and a Determination of the Masses of Both Worlds" 1329: 1238: 1148: 1111: 837: 353: 293: 273: 261: 38: 3248: 2512: 2353: 2218: 2208: 2203: 2183: 2178: 2033: 1903: 1836: 1644: 1521: 1441: 979: 250: 73: 1712: 3138: 3133: 2712: 2313: 2308: 2303: 2298: 2293: 2288: 2283: 2278: 2273: 2268: 2263: 2258: 2213: 2193: 2173: 1345: 1254: 804: 763: 741: 700: 577: 520: 1828: 1512: 1473: 3215: 3108: 2722: 2348: 2343: 2338: 2198: 1107: 972: 936: 933: 902: 673: 416: 167: 111: 2083: 2048: 2024: 1989: 1886: 1851: 1775: 1738: 1695: 1660: 1617: 1582: 3210: 3128: 3113: 2747: 2742: 2737: 2732: 2727: 2626: 2469: 2454: 2449: 2421: 2416: 2411: 2406: 2401: 2396: 2391: 2386: 2381: 2376: 2371: 2253: 2248: 2238: 2233: 2228: 1429: 1370: 1282: 1191: 948: 909: 777: 714: 540: 459: 308: 213: 1895: 1704: 1636: 3169: 3007: 2704: 2646: 2621: 2532: 2527: 2492: 2487: 2094: 1000: 921: 849: 963:. LTT 1445 A and LTT 1445 BC are separated by about 34 864: J03015142-1635356, 2MASS J03015107-1635306, TIC 98796344, 3143: 3092: 3087: 3082: 3077: 3072: 3067: 3062: 3057: 3052: 3047: 3042: 3037: 3032: 3027: 3022: 3017: 3012: 3002: 2997: 2992: 2987: 2982: 2977: 2972: 2967: 2962: 2957: 2952: 2947: 2942: 2937: 2932: 2927: 2922: 2917: 2912: 2907: 2902: 2897: 2892: 2887: 2882: 2877: 2872: 2867: 2862: 2857: 2852: 2847: 2842: 2837: 2832: 2827: 2783: 2752: 2656: 2595: 2590: 2585: 2580: 2575: 2570: 2547: 2542: 2537: 2522: 2517: 2507: 2502: 2497: 2464: 2459: 2444: 2168: 983: 3123: 3118: 2822: 2817: 2812: 2681: 2676: 2671: 2666: 2661: 2641: 2636: 2631: 2552: 2439: 1435: 905: 65: 58: 17: 1627: 2797: 2766: 1531: 1171: 1094: 1051: 947:
All three stars in the system are M-dwarfs, with masses between 0.16
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Pass, Emily K.; Winters, Jennifer G.; et al. (July 2023).
1154: 825: 1922:"Discovery Alert: Rocky Planet Swelters Under Three Red Suns" 1478:
Data Release 3. Summary of the content and survey properties"
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Vallenari, A.; et al. (Gaia collaboration) (2023).
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Exoplanet Exploration: Planets Beyond our Solar System
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In July 2021, the mass of the planet was measured as
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Earth masses, confirming an Earth-like composition.
3201: 3160: 3101: 2805: 2796: 2774: 2765: 2703: 2604: 2561: 2478: 2430: 2362: 2159: 2150: 1022:measurements to constrain the mass of the planet. 1988:Winters, Jennifer G.; et al. (30 July 2021). 1581:Winters, Jennifer G.; et al. (October 2019). 1576: 1574: 1572: 1570: 1568: 1566: 1564: 1562: 1560: 1558: 1556: 1554: 1552: 1550: 1548: 1546: 1544: 1542: 1540: 1003:located approximately 22 light years away from 1011:discovered it in June 2019 with data from the 2110: 1983: 1981: 1979: 1977: 1420:List of star systems within 20–25 light-years 920:. The primary LTT 1445 A hosts two 118:−16° 35′ 36.0312″ 8: 3275:Planetary systems with two confirmed planets 1850:Howard, Ward S.; et al. (August 2019). 1792: 1790: 1788: 1786: 3198: 3157: 2802: 2771: 2700: 2156: 2117: 2103: 2095: 1732: 1730: 1728: 1726: 1724: 1722: 174:−16° 35′ 31.1″ 2082: 2064: 2023: 2005: 1885: 1867: 1810: 1774: 1756: 1694: 1676: 1626: 1616: 1598: 1511: 1493: 1467: 1465: 1463: 1461: 1459: 1457: 986:, likely on either the B or C component. 27:Star system in the constellation Eridanus 1116: 1952:"This Newfound Alien Planet Has 3 Suns" 1453: 257: 1915: 1913: 29: 1962:from the original on 13 February 2021 1013:Transiting Exoplanet Survey Satellite 7: 61:       269: 25: 982:and rotational modulation due to 292:145.6922 ± 0.0244  3231: 3230: 1950:Bartels, Meghan (26 July 2019). 1118:The LTT 1445 A planetary system 37: 1932:from the original on 2023-05-23 1528:Gaia DR3 record for this source 1083:In 2023, observations with the 1009:Harvard Center for Astrophysics 916:) distant in the constellation 1: 2142:Eridanus in Chinese astronomy 924:—one discovered in 2019 that 3280:Multi-star planetary systems 1170: 1165: 1160: 1147: 1134: 1129: 1122: 1098:(243 °C; 469 °F). 1055:(158 °C; 316 °F). 978:The TESS light curve showed 1829:10.1051/0004-6361/202143007 1513:10.1051/0004-6361/202243940 3306: 3265:M-type main-sequence stars 1799:Astronomy and Astrophysics 1482:Astronomy and Astrophysics 1425:List of nearest exoplanets 3228: 3197: 3156: 2699: 2137:List of stars in Eridanus 2132: 2126:Constellation of Eridanus 1007:. Astrophysicists of the 877: 872: 3192, GJ 3193 843: 836: 832: 756: 752: 693: 513: 508: 324: 320: 219: 212: 197: 141: 85: 52: 35: 3285:Eridanus (constellation) 3270:TESS Objects of Interest 2084:10.3847/1538-3881/acbf39 2053:The Astronomical Journal 2025:10.3847/1538-3881/ac50a9 1994:The Astronomical Journal 1887:10.3847/1538-4357/ab2767 1776:10.3847/1538-3881/acf561 1744:The Astronomical Journal 1696:10.3847/1538-3881/aac262 1665:The Astronomical Journal 1618:10.3847/1538-3881/ab364d 1587:The Astronomical Journal 2612:2MASS J04151954−0935066 1821:2023A&A...673A..69L 1504:2023A&A...674A...1G 1042:equilibrium temperature 856: J03019-1633A,BC, 590:Luminosity (bolometric) 181:Apparent magnitude 125:Apparent magnitude 3290:Durchmusterung objects 1085:Hubble Space Telescope 488:Argument of periastron 2748:HD 30856 Ab (Nakanbé) 1856:Astrophysical Journal 1438:nearby M-dwarf triple 1432:nearby M-dwarf triple 438:Longitude of the node 2672:WASP-50 (Chaophraya) 1126:(in order from star) 1110:orbiting within the 312:(6.864 ± 0.001  307:22.387 ± 0.004  272: −267.931  260: −369.972  3260:Triple star systems 3203:Astronomical events 2718:ε Eridani b (AEgir) 2075:2023AJ....165..169D 2016:2022AJ....163..168W 1878:2019ApJ...881....9H 1767:2023AJ....166..171P 1687:2018AJ....155..265H 1609:2019AJ....158..152W 1119: 878:Database references 32: 2753:WASP-79b (Pollera) 2733:HD 18742 b (Bagan) 2571:18742 (Ayeyarwady) 1117: 999:LTT 1445 Ab is an 965:astronomical units 860: 02595-1647, 838:Other designations 204:Spectral type 30: 3255:Hipparcos objects 3242: 3241: 3224: 3223: 3193: 3192: 3185:MACS J0416.1-2403 3152: 3151: 2792: 2791: 2761: 2760: 2695: 2694: 2682:WASP-79 (Montuno) 2647:HIP 12961 (Koeia) 1411: 1410: 1158: 1145: 1127: 1077:orbital resonance 896: 895: 16:(Redirected from 3297: 3234: 3233: 3199: 3175:Eridanus Cluster 3158: 2803: 2772: 2701: 2157: 2119: 2112: 2105: 2096: 2089: 2088: 2086: 2068: 2044: 2038: 2037: 2027: 2009: 1985: 1972: 1971: 1969: 1967: 1947: 1941: 1940: 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3148: 3097: 2788: 2757: 2691: 2687:WISE J0336−0143 2662:WASP-22 (Tojil) 2617:DENIS 0255−4700 2600: 2591:30856 (Mouhoun) 2557: 2474: 2426: 2358: 2146: 2128: 2123: 2093: 2092: 2046: 2045: 2041: 1987: 1986: 1975: 1965: 1963: 1949: 1948: 1944: 1935: 1933: 1919: 1918: 1911: 1849: 1848: 1844: 1796: 1795: 1784: 1736: 1735: 1720: 1657: 1656: 1652: 1580: 1579: 1538: 1471: 1470: 1455: 1450: 1416: 1394: 1392: 1391: 1389: 1382: 1380: 1376: 1371: 1364: 1362: 1351: 1346: 1339: 1337: 1336: 1334: 1324: 1322: 1321: 1319: 1305: 1303: 1300: 1298: 1297: 1294: 1292: 1288: 1283: 1276: 1274: 1273: 1271: 1260: 1255: 1248: 1246: 1245: 1243: 1233: 1231: 1230: 1228: 1214: 1212: 1209: 1207: 1206: 1203: 1201: 1197: 1192: 1185: 1183: 1151: 1138: 1124: 1104: 1090: 1088: 1069: 1067: 1066: 1064: 1061: 1047: 1045: 1031: 1029: 1020:radial velocity 997: 992: 969:eccentric orbit 962: 959: 954: 951: 945: 873: 823: 810: 807: 798: 796: 783: 780: 771: 769: 747: 744: 735: 733: 720: 717: 708: 706: 681: 679: 659: 657: 637: 635: 634: 632: 622:Surface gravity 614: 611: 603: 599: 596: 594: 583: 580: 574: 564: 562: 561: 559: 546: 543: 537: 528: 526: 499: 497: 493: 485: 476: 472: 470: 457: 447: 445: 435: 425: 423: 406: 404: 386: 384: 377:Semi-major axis 374: 362: 360: 311: 268: 239: 237: 232: 227:Radial velocity 189: 187: 179: 165: 158: 152:Right ascension 149: 133: 131: 123: 109: 102: 96:Right ascension 93: 54: 48: 42: 28: 23: 22: 15: 12: 11: 5: 3303: 3301: 3293: 3292: 3287: 3282: 3277: 3272: 3267: 3262: 3257: 3247: 3246: 3240: 3239: 3229: 3226: 3225: 3222: 3221: 3219: 3218: 3213: 3207: 3205: 3195: 3194: 3191: 3190: 3188: 3187: 3182: 3180:Eridanus Group 3177: 3172: 3166: 3164: 3154: 3153: 3150: 3149: 3147: 3146: 3141: 3136: 3131: 3126: 3121: 3116: 3111: 3105: 3103: 3099: 3098: 3096: 3095: 3090: 3085: 3080: 3075: 3070: 3065: 3060: 3055: 3050: 3045: 3040: 3035: 3030: 3025: 3020: 3015: 3010: 3005: 3000: 2995: 2990: 2985: 2980: 2975: 2970: 2965: 2960: 2955: 2950: 2945: 2940: 2935: 2930: 2925: 2920: 2915: 2910: 2905: 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541: 535: 524: 516: 515: 511: 510: 506: 505: 495: 482: 481: 468: 454: 453: 443: 432: 431: 421: 412: 411: 402: 393: 392: 382: 371: 370: 358: 349: 348: 345: 339: 338: 335: 329: 328: 322: 321: 318: 317: 305: 297: 296: 290: 281: 280: 255: 246: 245: 235: 230: 222: 221: 217: 216: 210: 209: 206: 200: 199: 195: 194: 185: 176: 175: 172: 162: 161: 156: 146: 145: 139: 138: 129: 120: 119: 116: 106: 105: 103:03 01 51.39367 100: 90: 89: 83: 82: 77: 69: 68: 50: 49: 36: 31:LTT 1445 A,BC 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 3302: 3291: 3288: 3286: 3283: 3281: 3278: 3276: 3273: 3271: 3268: 3266: 3263: 3261: 3258: 3256: 3253: 3252: 3250: 3237: 3227: 3217: 3214: 3212: 3209: 3208: 3206: 3204: 3200: 3196: 3186: 3183: 3181: 3178: 3176: 3173: 3171: 3168: 3167: 3165: 3163: 3159: 3155: 3145: 3142: 3140: 3137: 3135: 3132: 3130: 3127: 3125: 3122: 3120: 3117: 3115: 3112: 3110: 3107: 3106: 3104: 3100: 3094: 3091: 3089: 3086: 3084: 3081: 3079: 3076: 3074: 3071: 3069: 3066: 3064: 3061: 3059: 3056: 3054: 3051: 3049: 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2607: 2603: 2597: 2594: 2592: 2589: 2587: 2584: 2582: 2579: 2577: 2574: 2572: 2569: 2568: 2566: 2564: 2560: 2554: 2551: 2549: 2546: 2544: 2541: 2539: 2536: 2534: 2531: 2529: 2526: 2524: 2521: 2519: 2516: 2514: 2511: 2509: 2506: 2504: 2501: 2499: 2496: 2494: 2491: 2489: 2486: 2485: 2483: 2481: 2477: 2471: 2468: 2466: 2463: 2461: 2458: 2456: 2453: 2451: 2448: 2446: 2443: 2441: 2438: 2437: 2435: 2433: 2429: 2423: 2420: 2418: 2415: 2413: 2410: 2408: 2405: 2403: 2402:53 (Sceptrum) 2400: 2398: 2395: 2393: 2390: 2388: 2385: 2383: 2380: 2378: 2375: 2373: 2370: 2369: 2367: 2365: 2361: 2355: 2352: 2350: 2347: 2345: 2342: 2340: 2337: 2335: 2332: 2330: 2327: 2325: 2322: 2320: 2317: 2315: 2312: 2310: 2307: 2305: 2302: 2300: 2297: 2295: 2292: 2290: 2287: 2285: 2282: 2280: 2279:τ (Angetenar) 2277: 2275: 2272: 2270: 2267: 2265: 2262: 2260: 2257: 2255: 2252: 2250: 2247: 2245: 2242: 2240: 2237: 2235: 2232: 2230: 2227: 2225: 2222: 2220: 2217: 2215: 2212: 2210: 2207: 2205: 2202: 2200: 2197: 2195: 2192: 2190: 2187: 2185: 2182: 2180: 2177: 2175: 2172: 2170: 2167: 2166: 2164: 2162: 2158: 2155: 2153: 2149: 2143: 2140: 2138: 2135: 2134: 2131: 2127: 2120: 2115: 2113: 2108: 2106: 2101: 2100: 2097: 2085: 2080: 2076: 2072: 2067: 2062: 2058: 2054: 2050: 2043: 2040: 2035: 2031: 2026: 2021: 2017: 2013: 2008: 2003: 1999: 1995: 1991: 1984: 1982: 1980: 1978: 1974: 1961: 1957: 1953: 1946: 1943: 1931: 1927: 1923: 1916: 1914: 1910: 1905: 1901: 1897: 1893: 1888: 1883: 1879: 1875: 1870: 1865: 1861: 1857: 1853: 1846: 1843: 1838: 1834: 1830: 1826: 1822: 1818: 1813: 1808: 1804: 1800: 1793: 1791: 1789: 1787: 1783: 1777: 1772: 1768: 1764: 1759: 1754: 1750: 1746: 1745: 1740: 1733: 1731: 1729: 1727: 1725: 1723: 1719: 1714: 1710: 1706: 1702: 1697: 1692: 1688: 1684: 1679: 1674: 1670: 1666: 1662: 1654: 1651: 1646: 1642: 1638: 1634: 1629: 1624: 1619: 1614: 1610: 1606: 1601: 1596: 1592: 1588: 1584: 1577: 1575: 1573: 1571: 1569: 1567: 1565: 1563: 1561: 1559: 1557: 1555: 1553: 1551: 1549: 1547: 1545: 1543: 1541: 1537: 1533: 1529: 1523: 1519: 1514: 1509: 1505: 1501: 1496: 1491: 1487: 1483: 1479: 1477: 1468: 1466: 1464: 1462: 1460: 1458: 1454: 1447: 1443: 1442:Gliese 667 Cc 1440: 1437: 1434: 1431: 1428: 1426: 1423: 1421: 1418: 1417: 1413: 1406: 1403: 1400: 1388: 1379: 1377: 1361: 1359: 1356: 1355: 1352: 1333: 1331: 1318: 1315: 1312: 1291: 1289: 1270: 1268: 1265: 1264: 1261: 1242: 1240: 1227: 1224: 1221: 1200: 1198: 1182: 1180: 1177: 1176: 1173: 1168: 1163: 1156: 1150: 1143: 1137: 1132: 1121: 1115: 1113: 1109: 1101: 1099: 1096: 1086: 1081: 1078: 1058: 1056: 1053: 1043: 1037: 1026: 1023: 1021: 1018: 1014: 1010: 1006: 1002: 994: 989: 987: 985: 981: 976: 974: 970: 966: 955: 942: 940: 938: 935: 931: 927: 923: 919: 915: 911: 907: 904: 900: 892: 889: 887: 886: 882: 881: 876: 871: 867: 863: 859: 855: 852: 14101, 851: 847: 842: 839: 835: 831: 827: 822: 820: 819: 815: 814: 811: 795: 793: 792: 788: 787: 784: 768: 766: 765: 761: 760: 755: 751: 748: 732: 730: 729: 725: 724: 721: 705: 703: 702: 698: 697: 692: 689: 678: 676: 675: 671: 670: 667: 656: 654: 653: 649: 648: 645: 631: 629: 627: 623: 619: 618: 615: 593: 591: 588: 587: 584: 571: 558: 556: 555: 551: 550: 547: 534: 525: 523: 522: 518: 517: 512: 507: 496: 491: 489: 484: 483: 469: 466: 464: 461: 456: 455: 444: 441: 439: 434: 433: 422: 420: 418: 414: 413: 403: 401: 399: 395: 394: 383: 380: 378: 373: 372: 369: 359: 357: 355: 351: 350: 346: 344: 341: 340: 336: 334: 331: 330: 327: 323: 319: 315: 310: 306: 304: 303: 299: 298: 295: 291: 289: 287: 283: 282: 279: 275: 267: 263: 256: 254: 252: 251:Proper motion 248: 247: 236: 234: 228: 224: 223: 218: 215: 211: 207: 205: 202: 201: 196: 186: 182: 178: 177: 173: 170: 169: 164: 163: 157: 154: 153: 148: 147: 144: 140: 130: 126: 122: 121: 117: 114: 113: 108: 107: 101: 98: 97: 92: 91: 88: 84: 81: 78: 76: 75: 74:Constellation 71: 70: 67: 64: 60: 57: 51: 46: 40: 34: 19: 3139:ESO 0313-192 3134:MRC 0406-244 2713:51 Eridani b 2651: 2249:ο (40, Keid) 2169:α (Achernar) 2056: 2052: 2042: 1997: 1993: 1964:. Retrieved 1955: 1945: 1934:. Retrieved 1925: 1859: 1855: 1845: 1802: 1798: 1748: 1742: 1668: 1664: 1653: 1590: 1586: 1485: 1481: 1475: 1357: 1266: 1178: 1162:Eccentricity 1105: 1082: 1062: 1038: 1027: 1024: 998: 977: 973:co-planarity 946: 908:system 22.4 898: 897: 883: 816: 789: 762: 726: 699: 672: 650: 625: 620: 589: 569: 552: 532: 519: 486: 458: 436: 415: 398:Eccentricity 396: 375: 352: 342: 332: 300: 284: 249: 225: 208:M2.5+M3.0+M 166: 150: 142: 110: 94: 86: 72: 3216:HE0435-1223 3109:Eridanus II 2723:Gliese 86 b 2324:υ (Theemin) 1966:24 February 1167:Inclination 1108:super-Earth 1102:LTT 1445 Ad 1059:LTT 1445 Ac 995:LTT 1445 Ab 934:HD 219134 b 910:light-years 674:Metallicity 652:Temperature 531:0.014  494:(secondary) 417:Inclination 168:Declination 159:03 01 51.04 143:LTT 1445 BC 112:Declination 3249:Categories 3211:GRB 080913 3129:LEDA 74886 3114:ESO 198-13 2743:HD 30562 b 2738:HD 28185 b 2728:HD 10647 b 2705:Exoplanets 2627:Gliese 180 2329:υ (Beemim) 2204:θ (Acamar) 2179:γ (Zaurak) 2066:2210.11809 2059:(4): 169. 2007:2107.14737 2000:(4): 168. 1936:2020-02-13 1869:1904.10421 1812:2210.09713 1758:2307.02970 1751:(4): 171. 1678:1804.07377 1671:(6): 265. 1628:2144/39814 1600:1906.10147 1593:(4): 152. 1495:2208.00211 1448:References 1430:EZ Aquarii 1316:<0.110 1313:5.3587635 1225:<0.223 1222:3.1238994 922:exoplanets 624:(log  460:Periastron 347:LTT 1445 C 337:LTT 1445 B 244: km/s 220:LTT 1445 A 214:Astrometry 87:LTT 1445 A 3170:Abell 383 2622:Gliese 86 2364:Flamsteed 2194:ζ (Zibal) 2174:β (Cursa) 2034:236635391 1956:Space.com 1904:128361715 1896:0004-637X 1837:252967989 1705:0004-6256 1645:195584444 1637:0004-6256 1522:244398875 1123:Companion 1001:exoplanet 984:starspots 956:and 0.26 930:resonance 824:1.4  343:Companion 183: (V) 127: (V) 3236:Category 3144:UGC 2812 2798:Galaxies 2657:LP 890-9 2652:LTT 1445 2538:1195 (g) 2533:1190 (f) 2528:1189 (f) 2523:1143 (h) 2518:1106 (y) 2513:1008 (e) 2432:Variable 2244:ο (Beid) 2199:η (Azha) 2184:δ (Rana) 1960:Archived 1930:Archived 1862:(1): 9. 1713:53983430 1414:See also 1093:28  1050:23  961:☉ 953:☉ 926:transits 918:Eridanus 899:LTT 1445 818:Rotation 809:☉ 782:☉ 746:☉ 719:☉ 613:☉ 582:☉ 573:☉ 545:☉ 536:☉ 302:Distance 286:Parallax 80:Eridanus 3124:IC 2006 3119:IC 1953 2767:Nebulae 2677:WASP-78 2667:WASP-35 2642:GJ 3323 2637:GJ 3293 2632:GJ 1062 2503:789 (s) 2498:506 (q) 2493:487 (p) 2488:486 (p) 2189:ε (Ran) 2071:Bibcode 2012:Bibcode 1874:Bibcode 1817:Bibcode 1805:: A69. 1763:Bibcode 1683:Bibcode 1605:Bibcode 1500:Bibcode 1436:GJ 1245 914:parsecs 906:M-dwarf 509:Details 333:Primary 66:J2000.0 63:Equinox 59:J2000.0 45:ACS/HRC 43:Hubble 18:GJ 3192 2460:EM (d) 2397:51 (c) 2387:39 (A) 2382:17 (v) 2032:  1902:  1894:  1835:  1711:  1703:  1643:  1635:  1532:VizieR 1520:  1488:: A1. 1369:  1344:  1304:−0.000 1299:+0.000 1281:  1253:  1213:−0.000 1208:+0.000 1190:  1172:Radius 903:triple 885:SIMBAD 868:-455, 803:  791:Radius 776:  740:  728:Radius 713:  686:  664:  642:  638:−0.075 636:+0.061 607:  576:  568:  565:−0.010 563:+0.019 554:Radius 539:  504:° 452:° 446:137.63 430:° 354:Period 3102:Other 3008:1427A 2605:Other 2596:30963 2586:30562 2581:28185 2576:19467 2161:Bayer 2152:Stars 2061:arXiv 2030:S2CID 2002:arXiv 1900:S2CID 1864:arXiv 1833:S2CID 1807:arXiv 1753:arXiv 1709:S2CID 1673:arXiv 1641:S2CID 1595:arXiv 1526: 1518:S2CID 1490:arXiv 1395:−0.08 1393:+0.03 1390:24.30 1363:≥2.72 1340:−0.06 1338:+0.11 1325:−0.40 1323:+0.33 1320:89.53 1293:0.038 1277:−0.23 1275:+0.25 1249:−0.07 1247:+0.10 1234:−0.21 1232:+0.13 1229:87.46 1202:0.026 1070:−0.19 1068:+0.20 1017:HARPS 1005:Earth 912:(6.9 901:is a 862:2MASS 801:0.027 797:0.197 774:0.014 770:0.161 738:0.027 734:0.236 711:0.014 707:0.215 680:−0.34 658:3,337 633:4.967 602:0.000 595:0.008 560:0.271 527:0.257 463:epoch 424:89.64 389:0.076 385:1.159 326:Orbit 270:Dec.: 238:−5.74 188:11.37 132:11.22 56:Epoch 3093:1741 3088:1728 3083:1725 3078:1723 3073:1721 3068:1637 3063:1614 3058:1600 3053:1592 3048:1532 3043:1531 3038:1487 3033:1460 3028:1452 3023:1439 3018:1437 3013:1436 3003:1426 2998:1407 2993:1404 2988:1403 2983:1400 2978:1395 2973:1386 2968:1369 2963:1357 2958:1353 2953:1347 2948:1345 2943:1337 2938:1332 2933:1325 2928:1309 2923:1300 2918:1291 2913:1269 2908:1266 2903:1262 2898:1253 2893:1241 2888:1234 2883:1232 2878:1222 2873:1199 2868:1192 2863:1191 2858:1190 2853:1189 2848:1187 2843:1172 2838:1140 2833:1132 2828:1084 2784:1535 2553:1614 2548:1536 2543:1483 1968:2021 1892:ISSN 1701:ISSN 1633:ISSN 1476:Gaia 1385:0.02 1381:0.09 1367:0.75 1335:1.34 1272:2.73 1244:1.07 1188:0.19 1184:1.37 1155:days 1131:Mass 1065:1.54 1034:0.25 1030:2.87 891:A,BC 858:IRAS 764:Mass 701:Mass 684:0.08 521:Mass 450:0.19 428:0.13 409:0.11 405:0.50 361:36.2 242:0.33 192:0.03 136:0.02 2823:939 2818:852 2813:782 2806:NGC 2776:NGC 2508:859 2079:doi 2057:165 2020:doi 1998:163 1882:doi 1860:881 1825:doi 1803:673 1771:doi 1749:166 1691:doi 1669:155 1623:hdl 1613:doi 1591:158 1530:at 1508:doi 1486:674 1089:516 1046:431 1044:of 866:TOI 854:WDS 850:HIP 688:dex 662:150 644:cgs 498:209 490:(ω) 479:1.7 473:019 465:(T) 440:(Ω) 419:(i) 400:(e) 379:(a) 365:5.3 356:(P) 294:mas 288:(π) 274:mas 262:mas 258:RA: 253:(μ) 3251:: 2563:HD 2480:HR 2470:KT 2465:EP 2455:EK 2450:EF 2445:DZ 2440:DO 2422:66 2417:64 2412:58 2407:54 2392:45 2377:15 2372:14 2077:. 2069:. 2055:. 2051:. 2028:. 2018:. 2010:. 1996:. 1992:. 1976:^ 1958:. 1954:. 1928:. 1924:. 1912:^ 1898:. 1890:. 1880:. 1872:. 1858:. 1854:. 1831:. 1823:. 1815:. 1801:. 1785:^ 1769:. 1761:. 1747:. 1741:. 1721:^ 1707:. 1699:. 1689:. 1681:. 1667:. 1663:. 1639:. 1631:. 1621:. 1611:. 1603:. 1589:. 1585:. 1539:^ 1516:. 1506:. 1498:. 1484:. 1480:. 1456:^ 1407:— 1404:— 1401:— 1375:🜨 1350:🜨 1306:70 1301:67 1295:10 1287:🜨 1259:🜨 1215:49 1210:47 1204:59 1196:🜨 1142:AU 1114:. 939:. 870:GJ 846:BD 604:35 597:05 502:13 475:.2 368:yr 314:pc 309:ly 278:yr 266:yr 229:(R 2354:ω 2349:ψ 2344:χ 2339:φ 2334:υ 2319:υ 2314:τ 2309:τ 2304:τ 2299:τ 2294:τ 2289:τ 2284:τ 2274:τ 2269:ρ 2264:ρ 2259:ρ 2254:π 2239:ξ 2234:ν 2229:μ 2224:λ 2219:κ 2214:ι 2209:θ 2118:e 2111:t 2104:v 2087:. 2081:: 2073:: 2063:: 2036:. 2022:: 2014:: 2004:: 1970:. 1939:. 1906:. 1884:: 1876:: 1866:: 1839:. 1827:: 1819:: 1809:: 1779:. 1773:: 1765:: 1755:: 1715:. 1693:: 1685:: 1675:: 1647:. 1625:: 1615:: 1607:: 1597:: 1534:. 1524:. 1510:: 1502:: 1492:: 1474:" 1383:± 1372:M 1365:± 1358:d 1347:R 1330:° 1284:M 1267:b 1256:R 1239:° 1193:M 1186:± 1179:c 1157:) 1153:( 1144:) 1140:( 1095:K 1091:± 1052:K 1048:± 1032:± 958:M 950:M 937:c 826:d 806:R 799:± 779:M 772:± 757:C 743:R 736:± 716:M 709:± 694:B 682:± 666:K 660:± 628:) 626:g 610:L 600:± 579:R 570:R 542:M 533:M 529:± 514:A 500:± 477:± 471:2 448:± 426:± 407:± 391:″ 387:± 363:± 316:) 276:/ 264:/ 240:± 233:) 231:v 190:± 134:± 20:)

Index

GJ 3192

ACS/HRC
Epoch
J2000.0
Equinox
J2000.0
Constellation
Eridanus
Right ascension
Declination
Apparent magnitude
Right ascension
Declination
Apparent magnitude
Spectral type
Astrometry
Radial velocity
Proper motion
mas
yr
mas
yr
Parallax
mas
Distance
ly
pc
Orbit
Period

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