🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.63

Radius: 1.85

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.64 AU - 1.06 AU

Year: 285 Days

Day: 34.2 Hours

Environment

Temp: 169 °C

Axial Tilt: 34.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.91

Radius: 1.3

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.06 AU - 1.6 AU

Year: 557 Days

Day: 30.9 Hours

Environment

Temp: -14 °C

Axial Tilt: 36.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Asteroid Belt

Center: 5.42 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 9.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 664.8

Radius: 8.3

Gravity: 9.65 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 8.33 AU - 10.67 AU

Year: 10642 Days

Day: 11.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (91)

Outer Limit: 63,605,406 km

• M1: 606,171 km (0.077 R)
• M2: 902,524 km (0.079 R)
• M3: 1,241,214 km (0.114 R)
• M4: 1,711,250 km (0.069 R)
• M5: 1,855,313 km (0.087 R)
• M6: 1,928,765 km (0.108 R)
• M7: 2,258,629 km (0.03 R)
• M8: 2,497,536 km (0.12 R)
• M9: 2,744,672 km (0.088 R)
• M10: 2,800,622 km (0.099 R)
• M11: 2,885,294 km (0.1 R)
• M12: 3,532,754 km (0.077 R)
• M13: 3,810,258 km (0.051 R)
• M14: 4,288,672 km (0.11 R)
• M15: 4,584,726 km (0.071 R)
• M16: 4,684,957 km (0.095 R)
• M17: 5,336,455 km (0.107 R)
• M18: 5,442,071 km (0.102 R)
• M19: 7,456,257 km (0.106 R)
• M20: 7,574,290 km (0.117 R)
• M21: 8,012,462 km (0.104 R)
• M22: 8,418,022 km (0.117 R)
• M23: 8,705,998 km (0.096 R)
• M24: 8,788,725 km (0.054 R)
• M25: 9,038,853 km (0.076 R)
• M26: 9,207,001 km (0.118 R)
• M27: 9,376,047 km (0.092 R)
• M28: 9,631,709 km (0.078 R)
• M29: 9,976,084 km (0.091 R)
• M30: 10,236,982 km (0.102 R)
• M31: 11,078,171 km (0.101 R)
• M32: 11,348,345 km (0.077 R)
• M33: 12,778,949 km (0.098 R)
• M34: 12,873,196 km (0.028 R)
• M35: 13,205,004 km (0.106 R)
• M36: 13,635,547 km (0.061 R)
• M37: 13,876,698 km (0.09 R)
• M38: 14,119,346 km (0.102 R)
• M39: 14,363,340 km (0.088 R)
• M40: 14,905,184 km (0.063 R)
• M41: 15,856,776 km (0.114 R)
• M42: 17,923,470 km (0.106 R)
• M43: 20,073,491 km (0.049 R)
• M44: 20,956,119 km (0.119 R)
• M45: 21,794,914 km (0.095 R)
• M46: 21,964,109 km (0.106 R)
• M47: 23,159,994 km (0.104 R)
• M48: 23,274,886 km (0.111 R)
• M49: 23,447,821 km (0.085 R)
• M50: 23,505,565 km (0.07 R)
• M51: 25,912,146 km (0.06 R)
• M52: 26,091,365 km (0.11 R)
• M53: 27,296,226 km (0.112 R)
• M54: 27,356,963 km (0.074 R)
• M55: 27,722,281 km (0.097 R)
• M56: 27,966,574 km (0.071 R)
• M57: 28,334,585 km (0.119 R)
• M58: 28,457,554 km (0.099 R)
• M59: 29,510,424 km (0.079 R)
• M60: 29,572,657 km (0.093 R)
• M61: 29,947,549 km (0.037 R)
• M62: 30,072,912 km (0.106 R)
• M63: 30,198,425 km (0.105 R)
• M64: 30,891,661 km (0.116 R)
• M65: 31,335,518 km (0.065 R)
• M66: 31,590,134 km (0.112 R)
• M67: 32,551,001 km (0.073 R)
• M68: 32,744,431 km (0.093 R)
• M69: 33,651,592 km (0.092 R)
• M70: 34,173,838 km (0.12 R)
• M71: 34,896,097 km (0.101 R)
• M72: 35,159,988 km (0.093 R)
• M73: 35,889,277 km (0.03 R)
• M74: 36,088,990 km (0.116 R)
• M75: 36,289,152 km (0.038 R)
• M76: 36,690,374 km (0.104 R)
• M77: 37,295,198 km (0.092 R)
• M78: 37,497,454 km (0.072 R)
• M79: 37,835,396 km (0.062 R)
• M80: 38,855,504 km (0.076 R)
• M81: 40,160,596 km (0.098 R)
• M82: 40,437,052 km (0.094 R)
• M83: 40,853,234 km (0.099 R)
• M84: 41,270,612 km (0.113 R)
• M85: 43,449,954 km (0.106 R)
• M86: 44,018,575 km (0.088 R)
• M87: 44,160,992 km (0.085 R)
• M88: 44,446,425 km (0.075 R)
• M89: 45,594,439 km (0.114 R)
• M90: 47,480,719 km (0.111 R)
• M91: 49,318,379 km (0.056 R)

Planet 4 - Gas Giant

Semi-Major Axis: 11.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.3

Radius: 13.1

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 10.78 AU - 13.1 AU

Year: 14995 Days

Day: 9.8 Hours

Environment

Temp: -180 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (68)

Outer Limit: 63,605,406 km

• M1: 872,754 km (0.103 R)
• M2: 1,410,259 km (0.106 R)
• M3: 1,738,776 km (0.056 R)
• M4: 1,912,310 km (0.073 R)
• M5: 2,197,144 km (0.119 R)
• M6: 2,692,911 km (0.068 R)
• M7: 3,013,200 km (0.109 R)
• M8: 3,916,173 km (0.104 R)
• M9: 4,047,221 km (0.086 R)
• M10: 4,516,958 km (0.097 R)
• M11: 7,318,926 km (0.118 R)
• M12: 7,440,250 km (0.057 R)
• M13: 9,253,227 km (0.054 R)
• M14: 9,649,362 km (0.056 R)
• M15: 9,782,654 km (0.114 R)
• M16: 10,141,240 km (0.107 R)
• M17: 10,412,909 km (0.067 R)
• M18: 10,641,196 km (0.097 R)
• M19: 10,778,975 km (0.065 R)
• M20: 11,056,330 km (0.089 R)
• M21: 11,618,070 km (0.114 R)
• M22: 11,712,616 km (0.113 R)
• M23: 12,575,047 km (0.114 R)
• M24: 12,769,375 km (0.086 R)
• M25: 13,161,321 km (0.075 R)
• M26: 13,309,274 km (0.102 R)
• M27: 13,507,491 km (0.069 R)
• M28: 13,756,571 km (0.07 R)
• M29: 13,856,652 km (0.032 R)
• M30: 14,208,955 km (0.051 R)
• M31: 15,334,979 km (0.081 R)
• M32: 15,908,836 km (0.083 R)
• M33: 16,066,512 km (0.118 R)
• M34: 16,542,832 km (0.089 R)
• M35: 17,185,055 km (0.115 R)
• M36: 17,944,713 km (0.104 R)
• M37: 18,273,679 km (0.101 R)
• M38: 19,440,692 km (0.057 R)
• M39: 20,689,086 km (0.08 R)
• M40: 22,432,949 km (0.034 R)
• M41: 23,084,298 km (0.102 R)
• M42: 24,042,472 km (0.063 R)
• M43: 24,891,739 km (0.116 R)
• M44: 25,258,703 km (0.101 R)
• M45: 25,504,343 km (0.095 R)
• M46: 28,003,973 km (0.077 R)
• M47: 28,258,290 km (0.062 R)
• M48: 29,799,896 km (0.065 R)
• M49: 30,646,321 km (0.112 R)
• M50: 31,698,891 km (0.091 R)
• M51: 32,296,236 km (0.043 R)
• M52: 32,496,098 km (0.049 R)
• M53: 34,246,094 km (0.111 R)
• M54: 34,381,929 km (0.033 R)
• M55: 34,722,414 km (0.063 R)
• M56: 36,788,809 km (0.045 R)
• M57: 37,696,569 km (0.113 R)
• M58: 39,036,517 km (0.105 R)
• M59: 39,748,154 km (0.081 R)
• M60: 39,890,871 km (0.074 R)
• M61: 41,400,912 km (0.103 R)
• M62: 41,545,573 km (0.091 R)
• M63: 41,690,533 km (0.113 R)
• M64: 44,698,946 km (0.104 R)
• M65: 44,847,497 km (0.072 R)
• M66: 45,592,644 km (0.09 R)
• M67: 48,080,606 km (0.115 R)
• M68: 49,532,902 km (0.12 R)

Planet 5 - Ice Giant

Semi-Major Axis: 13.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 560.4

Radius: 5.5

Gravity: 18.53 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 12.03 AU - 15.15 AU

Year: 18208 Days

Day: 22.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (97)

Outer Limit: 63,605,406 km

• M1: 74,350 km (0.094 R)
• M2: 243,246 km (0.057 R)
• M3: 301,290 km (0.099 R)
• M4: 543,639 km (0.099 R)
• M5: 953,387 km (0.106 R)
• M6: 1,099,245 km (0.077 R)
• M7: 1,385,426 km (0.071 R)
• M8: 1,607,878 km (0.086 R)
• M9: 1,811,630 km (0.113 R)
• M10: 2,879,011 km (0.115 R)
• M11: 3,019,633 km (0.06 R)
• M12: 3,234,605 km (0.107 R)
• M13: 3,491,764 km (0.111 R)
• M14: 3,679,509 km (0.12 R)
• M15: 3,755,505 km (0.09 R)
• M16: 4,025,679 km (0.095 R)
• M17: 4,262,343 km (0.107 R)
• M18: 4,790,423 km (0.109 R)
• M19: 4,831,862 km (0.079 R)
• M20: 6,586,645 km (0.106 R)
• M21: 6,771,996 km (0.094 R)
• M22: 6,818,671 km (0.04 R)
• M23: 7,195,358 km (0.058 R)
• M24: 7,290,652 km (0.065 R)
• M25: 7,578,778 km (0.083 R)
• M26: 8,265,731 km (0.11 R)
• M27: 8,768,679 km (0.118 R)
• M28: 8,870,406 km (0.087 R)
• M29: 8,921,419 km (0.111 R)
• M30: 9,489,143 km (0.057 R)
• M31: 9,593,562 km (0.03 R)
• M32: 10,282,011 km (0.1 R)
• M33: 10,335,567 km (0.04 R)
• M34: 10,605,143 km (0.056 R)
• M35: 10,876,962 km (0.083 R)
• M36: 12,213,170 km (0.089 R)
• M37: 12,440,858 km (0.058 R)
• M38: 13,132,449 km (0.036 R)
• M39: 13,541,450 km (0.052 R)
• M40: 13,895,548 km (0.111 R)
• M41: 13,954,789 km (0.1 R)
• M42: 14,133,259 km (0.055 R)
• M43: 15,219,489 km (0.112 R)
• M44: 15,649,134 km (0.061 R)
• M45: 17,279,601 km (0.068 R)
• M46: 17,535,264 km (0.106 R)
• M47: 18,114,956 km (0.108 R)
• M48: 18,963,325 km (0.114 R)
• M49: 19,958,301 km (0.108 R)
• M50: 21,860,438 km (0.062 R)
• M51: 25,470,533 km (0.113 R)
• M52: 25,688,498 km (0.114 R)
• M53: 25,907,210 km (0.104 R)
• M54: 26,199,673 km (0.047 R)
• M55: 26,346,429 km (0.055 R)
• M56: 26,714,290 km (0.115 R)
• M57: 27,009,746 km (0.119 R)
• M58: 28,277,738 km (0.085 R)
• M59: 29,565,027 km (0.06 R)
• M60: 30,177,481 km (0.069 R)
• M61: 30,716,632 km (0.064 R)
• M62: 31,414,655 km (0.106 R)
• M63: 33,460,257 km (0.1 R)
• M64: 33,938,521 km (0.039 R)
• M65: 34,499,214 km (0.099 R)
• M66: 35,143,681 km (0.045 R)
• M67: 35,386,479 km (0.099 R)
• M68: 35,955,100 km (0.037 R)
• M69: 36,281,224 km (0.1 R)
• M70: 36,526,564 km (0.059 R)
• M71: 36,690,523 km (0.114 R)
• M72: 37,018,891 km (0.099 R)
• M73: 37,430,883 km (0.091 R)
• M74: 39,010,038 km (0.107 R)
• M75: 39,429,212 km (0.079 R)
• M76: 39,513,136 km (0.099 R)
• M77: 42,663,368 km (0.1 R)
• M78: 42,835,854 km (0.084 R)
• M79: 47,135,596 km (0.028 R)
• M80: 47,940,134 km (0.077 R)
• M81: 48,029,892 km (0.099 R)
• M82: 50,289,867 km (0.118 R)
• M83: 51,938,286 km (0.109 R)
• M84: 52,399,347 km (0.111 R)
• M85: 52,584,250 km (0.112 R)
• M86: 53,047,106 km (0.114 R)
• M87: 53,418,557 km (0.113 R)
• M88: 54,444,200 km (0.031 R)
• M89: 54,537,699 km (0.079 R)
• M90: 55,476,276 km (0.113 R)
• M91: 55,853,263 km (0.09 R)
• M92: 56,989,010 km (0.068 R)
• M93: 59,187,350 km (0.108 R)
• M94: 61,705,681 km (0.078 R)
• M95: 62,389,493 km (0.039 R)
• M96: 62,879,575 km (0.072 R)
• M97: 65,946,481 km (0.038 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 676.7

Radius: 4.2

Gravity: 38.36 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 11.76 AU - 15.82 AU

Year: 18611 Days

Day: 18.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 63,605,406 km

• M1: 54,454 km (0.092 R)
• M2: 1,389,016 km (0.08 R)
• M3: 1,872,517 km (0.104 R)
• M4: 2,165,728 km (0.104 R)
• M5: 3,357,575 km (0.105 R)
• M6: 3,672,329 km (0.109 R)
• M7: 3,996,358 km (0.079 R)
• M8: 4,037,497 km (0.112 R)
• M9: 4,371,848 km (0.076 R)
• M10: 4,758,559 km (0.092 R)
• M11: 4,933,887 km (0.096 R)
• M12: 5,156,040 km (0.083 R)
• M13: 5,749,046 km (0.048 R)
• M14: 6,172,109 km (0.098 R)
• M15: 6,849,937 km (0.102 R)
• M16: 7,047,855 km (0.037 R)
• M17: 7,806,914 km (0.113 R)
• M18: 7,858,526 km (0.109 R)
• M19: 8,485,640 km (0.049 R)
• M20: 8,591,705 km (0.115 R)
• M21: 8,966,448 km (0.092 R)
• M22: 10,010,192 km (0.084 R)
• M23: 10,631,921 km (0.079 R)
• M24: 11,793,847 km (0.087 R)
• M25: 12,449,984 km (0.041 R)
• M26: 12,752,171 km (0.108 R)
• M27: 13,672,946 km (0.081 R)
• M28: 14,805,851 km (0.098 R)
• M29: 14,997,635 km (0.093 R)
• M30: 15,125,841 km (0.094 R)
• M31: 15,254,495 km (0.077 R)
• M32: 15,707,627 km (0.1 R)
• M33: 15,968,675 km (0.075 R)
• M34: 16,165,247 km (0.115 R)
• M35: 18,311,976 km (0.106 R)
• M36: 18,517,823 km (0.094 R)
• M37: 18,793,382 km (0.071 R)
• M38: 20,688,937 km (0.105 R)
• M39: 20,974,818 km (0.117 R)
• M40: 21,046,625 km (0.079 R)
• M41: 21,623,026 km (0.052 R)
• M42: 23,606,694 km (0.052 R)
• M43: 23,681,193 km (0.03 R)
• M44: 23,755,843 km (0.08 R)
• M45: 24,055,338 km (0.068 R)
• M46: 25,189,140 km (0.079 R)
• M47: 25,418,025 km (0.067 R)
• M48: 26,805,694 km (0.038 R)
• M49: 27,195,547 km (0.096 R)
• M50: 27,587,194 km (0.111 R)
• M51: 29,172,482 km (0.115 R)
• M52: 29,252,517 km (0.11 R)
• M53: 29,332,552 km (0.106 R)
• M54: 29,653,739 km (0.069 R)
• M55: 29,734,222 km (0.103 R)
• M56: 31,605,093 km (0.114 R)
• M57: 31,687,372 km (0.072 R)
• M58: 32,264,670 km (0.09 R)
• M59: 32,762,382 km (0.064 R)
• M60: 32,928,885 km (0.068 R)
• M61: 35,715,893 km (0.112 R)
• M62: 35,887,183 km (0.071 R)
• M63: 37,876,834 km (0.058 R)
• M64: 38,753,179 km (0.091 R)
• M65: 38,841,142 km (0.081 R)
• M66: 38,929,106 km (0.084 R)
• M67: 40,972,762 km (0.057 R)
• M68: 41,421,556 km (0.061 R)
• M69: 41,871,995 km (0.105 R)
• M70: 43,781,762 km (0.079 R)
• M71: 44,148,725 km (0.074 R)
• M72: 44,793,342 km (0.098 R)
• M73: 44,978,096 km (0.054 R)
• M74: 45,255,749 km (0.104 R)
• M75: 49,678,461 km (0.089 R)
• M76: 50,829,617 km (0.111 R)
• M77: 52,280,716 km (0.104 R)
• M78: 53,941,851 km (0.086 R)
• M79: 55,918,038 km (0.11 R)
• M80: 56,017,521 km (0.087 R)
• M81: 56,216,636 km (0.041 R)
• M82: 57,115,121 km (0.07 R)
• M83: 57,415,812 km (0.086 R)
• M84: 62,708,884 km (0.079 R)
• M85: 63,952,342 km (0.091 R)
• M86: 65,099,309 km (0.112 R)
• M87: 67,731,184 km (0.096 R)
• M88: 67,943,164 km (0.066 R)
• M89: 68,049,379 km (0.1 R)
• M90: 68,155,444 km (0.116 R)
• M91: 69,754,495 km (0.099 R)
• M92: 71,473,674 km (0.072 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 441.6

Radius: 6.3

Gravity: 11.13 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 11.82 AU - 16.18 AU

Year: 19038 Days

Day: 17.8 Hours

Environment

Temp: -180 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (72)

Outer Limit: 63,605,406 km

• M1: 88,861 km (0.056 R)
• M2: 161,865 km (0.119 R)
• M3: 459,116 km (0.032 R)
• M4: 1,035,367 km (0.097 R)
• M5: 1,180,028 km (0.096 R)
• M6: 1,488,948 km (0.108 R)
• M7: 1,793,529 km (0.047 R)
• M8: 1,851,124 km (0.117 R)
• M9: 2,427,674 km (0.046 R)
• M10: 2,987,619 km (0.088 R)
• M11: 3,406,044 km (0.075 R)
• M12: 3,586,011 km (0.115 R)
• M13: 3,695,367 km (0.074 R)
• M14: 3,768,969 km (0.064 R)
• M15: 4,531,170 km (0.092 R)
• M16: 5,256,720 km (0.08 R)
• M17: 5,548,585 km (0.119 R)
• M18: 5,974,789 km (0.075 R)
• M19: 6,061,257 km (0.071 R)
• M20: 6,104,640 km (0.098 R)
• M21: 7,223,184 km (0.077 R)
• M22: 9,289,729 km (0.036 R)
• M23: 10,308,789 km (0.104 R)
• M24: 11,309,449 km (0.075 R)
• M25: 11,363,005 km (0.111 R)
• M26: 11,470,267 km (0.088 R)
• M27: 11,902,904 km (0.097 R)
• M28: 12,285,875 km (0.101 R)
• M29: 12,672,735 km (0.089 R)
• M30: 12,728,385 km (0.086 R)
• M31: 13,458,572 km (0.102 R)
• M32: 14,087,033 km (0.1 R)
• M33: 14,666,725 km (0.076 R)
• M34: 15,909,135 km (0.07 R)
• M35: 18,493,289 km (0.094 R)
• M36: 19,319,219 km (0.049 R)
• M37: 20,678,614 km (0.111 R)
• M38: 21,668,354 km (0.085 R)
• M39: 21,934,937 km (0.083 R)
• M40: 22,606,033 km (0.079 R)
• M41: 22,876,357 km (0.084 R)
• M42: 23,283,861 km (0.06 R)
• M43: 23,351,928 km (0.036 R)
• M44: 27,416,652 km (0.12 R)
• M45: 28,066,655 km (0.098 R)
• M46: 31,241,720 km (0.117 R)
• M47: 31,542,861 km (0.095 R)
• M48: 31,693,655 km (0.119 R)
• M49: 32,375,822 km (0.096 R)
• M50: 32,756,847 km (0.114 R)
• M51: 34,917,789 km (0.068 R)
• M52: 35,152,059 km (0.104 R)
• M53: 35,465,167 km (0.077 R)
• M54: 36,885,749 km (0.103 R)
• M55: 41,505,480 km (0.115 R)
• M56: 42,002,295 km (0.09 R)
• M57: 42,251,525 km (0.111 R)
• M58: 42,834,658 km (0.1 R)
• M59: 44,685,034 km (0.112 R)
• M60: 46,991,234 km (0.026 R)
• M61: 49,862,017 km (0.05 R)
• M62: 50,743,149 km (0.097 R)
• M63: 51,097,098 km (0.055 R)
• M64: 51,807,239 km (0.093 R)
• M65: 54,318,688 km (0.036 R)
• M66: 55,134,295 km (0.042 R)
• M67: 55,771,582 km (0.034 R)
• M68: 57,421,198 km (0.066 R)
• M69: 58,067,012 km (0.058 R)
• M70: 58,529,868 km (0.112 R)
• M71: 60,205,962 km (0.086 R)
• M72: 63,414,986 km (0.075 R)

Kuiper Belt

Range: 30.2 - 54.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 439 - 12,057 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit