🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 986.2

Radius: 13.6

Gravity: 5.33 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.62 AU - 1.04 AU

Year: 488 Days

Day: 15 Hours

Environment

Temp: -151 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 34,631,178 km

• M1: 171,589 km (0.116 R)
• M2: 297,101 km (0.067 R)
• M3: 484,996 km (0.09 R)
• M4: 595,848 km (0.047 R)
• M5: 744,698 km (0.119 R)
• M6: 932,743 km (0.059 R)
• M7: 1,051,823 km (0.113 R)
• M8: 1,288,935 km (0.069 R)
• M9: 1,376,151 km (0.081 R)
• M10: 1,587,533 km (0.086 R)
• M11: 1,681,630 km (0.088 R)
• M12: 1,771,239 km (0.037 R)
• M13: 1,908,719 km (0.112 R)
• M14: 2,050,089 km (0.078 R)
• M15: 2,201,931 km (0.096 R)
• M16: 2,343,451 km (0.112 R)
• M17: 2,509,953 km (0.056 R)
• M18: 2,598,515 km (0.109 R)
• M19: 2,688,124 km (0.105 R)
• M20: 2,916,710 km (0.068 R)
• M21: 3,143,949 km (0.109 R)
• M22: 3,272,005 km (0.059 R)
• M23: 3,599,624 km (0.052 R)
• M24: 3,725,286 km (0.077 R)
• M25: 3,860,822 km (0.102 R)
• M26: 3,946,541 km (0.065 R)
• M27: 4,084,919 km (0.089 R)
• M28: 4,198,614 km (0.114 R)
• M29: 4,295,703 km (0.084 R)
• M30: 4,691,389 km (0.072 R)
• M31: 4,838,145 km (0.078 R)
• M32: 5,297,560 km (0.114 R)
• M33: 5,421,876 km (0.108 R)
• M34: 5,576,111 km (0.1 R)
• M35: 5,702,521 km (0.09 R)
• M36: 5,800,508 km (0.118 R)
• M37: 6,047,793 km (0.118 R)
• M38: 6,208,012 km (0.089 R)
• M39: 6,440,637 km (0.12 R)
• M40: 6,573,480 km (0.104 R)
• M41: 6,769,304 km (0.056 R)
• M42: 6,946,128 km (0.096 R)
• M43: 7,145,542 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194

Radius: 8

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.06 AU - 1.1 AU

Year: 725 Days

Day: 13.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 34,631,178 km

• M1: 106,514 km (0.08 R)
• M2: 221,106 km (0.081 R)
• M3: 360,082 km (0.088 R)
• M4: 443,258 km (0.118 R)
• M5: 523,443 km (0.089 R)
• M6: 579,991 km (0.117 R)
• M7: 739,013 km (0.118 R)
• M8: 999,912 km (0.055 R)
• M9: 1,141,133 km (0.107 R)
• M10: 1,226,104 km (0.116 R)
• M11: 1,328,130 km (0.114 R)
• M12: 1,412,952 km (0.089 R)
• M13: 1,678,039 km (0.085 R)
• M14: 1,847,085 km (0.101 R)
• M15: 1,936,395 km (0.093 R)
• M16: 2,090,630 km (0.095 R)
• M17: 2,183,979 km (0.111 R)
• M18: 2,278,675 km (0.09 R)
• M19: 2,374,866 km (0.109 R)
• M20: 2,521,622 km (0.118 R)
• M21: 2,639,954 km (0.062 R)
• M22: 2,722,083 km (0.116 R)
• M23: 2,914,615 km (0.118 R)
• M24: 3,012,602 km (0.105 R)
• M25: 3,158,460 km (0.107 R)
• M26: 3,313,294 km (0.088 R)
• M27: 3,491,465 km (0.099 R)
• M28: 3,630,591 km (0.089 R)
• M29: 3,700,902 km (0.048 R)
• M30: 3,929,038 km (0.056 R)
• M31: 3,986,634 km (0.039 R)
• M32: 4,213,125 km (0.088 R)
• M33: 4,339,086 km (0.075 R)
• M34: 4,481,354 km (0.107 R)
• M35: 4,678,524 km (0.104 R)
• M36: 5,144,521 km (0.063 R)
• M37: 5,439,229 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 958.2

Radius: 9.7

Gravity: 10.18 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.26 AU - 1.38 AU

Year: 979 Days

Day: 6.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (67)

Outer Limit: 34,631,178 km

• M1: 125,812 km (0.084 R)
• M2: 217,665 km (0.116 R)
• M3: 298,747 km (0.092 R)
• M4: 466,297 km (0.033 R)
• M5: 642,672 km (0.12 R)
• M6: 710,889 km (0.068 R)
• M7: 903,422 km (0.091 R)
• M8: 1,151,305 km (0.062 R)
• M9: 1,315,264 km (0.08 R)
• M10: 1,428,959 km (0.104 R)
• M11: 1,495,530 km (0.09 R)
• M12: 1,981,424 km (0.095 R)
• M13: 2,112,771 km (0.08 R)
• M14: 2,237,386 km (0.118 R)
• M15: 2,315,177 km (0.061 R)
• M16: 2,404,038 km (0.104 R)
• M17: 2,564,706 km (0.084 R)
• M18: 2,687,526 km (0.078 R)
• M19: 2,791,496 km (0.055 R)
• M20: 2,928,528 km (0.099 R)
• M21: 3,014,098 km (0.108 R)
• M22: 3,353,386 km (0.04 R)
• M23: 3,431,775 km (0.072 R)
• M24: 3,601,718 km (0.098 R)
• M25: 3,670,533 km (0.109 R)
• M26: 3,856,184 km (0.114 R)
• M27: 3,926,495 km (0.042 R)
• M28: 4,044,827 km (0.098 R)
• M29: 4,152,388 km (0.117 R)
• M30: 4,309,316 km (0.041 R)
• M31: 4,370,352 km (0.105 R)
• M32: 4,517,706 km (0.107 R)
• M33: 4,616,889 km (0.095 R)
• M34: 4,741,804 km (0.039 R)
• M35: 4,830,066 km (0.1 R)
• M36: 4,918,778 km (0.115 R)
• M37: 5,305,189 km (0.1 R)
• M38: 5,634,903 km (0.105 R)
• M39: 5,755,180 km (0.09 R)
• M40: 5,835,813 km (0.107 R)
• M41: 6,025,653 km (0.115 R)
• M42: 6,217,437 km (0.079 R)
• M43: 6,314,077 km (0.064 R)
• M44: 6,439,141 km (0.12 R)
• M45: 6,536,978 km (0.099 R)
• M46: 6,649,326 km (0.075 R)
• M47: 6,918,902 km (0.097 R)
• M48: 7,076,578 km (0.076 R)
• M49: 7,497,995 km (0.114 R)
• M50: 7,674,820 km (0.08 R)
• M51: 8,047,767 km (0.094 R)
• M52: 8,411,140 km (0.088 R)
• M53: 8,472,326 km (0.087 R)
• M54: 8,579,587 km (0.071 R)
• M55: 8,702,856 km (0.092 R)
• M56: 9,028,979 km (0.113 R)
• M57: 9,327,577 km (0.117 R)
• M58: 9,454,286 km (0.099 R)
• M59: 9,677,337 km (0.113 R)
• M60: 9,757,521 km (0.083 R)
• M61: 10,128,823 km (0.044 R)
• M62: 10,210,204 km (0.114 R)
• M63: 10,308,041 km (0.087 R)
• M64: 10,669,769 km (0.058 R)
• M65: 10,735,891 km (0.055 R)
• M66: 11,018,930 km (0.082 R)
• M67: 11,304,214 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 377.7

Radius: 9.2

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.3 AU - 1.42 AU

Year: 1024 Days

Day: 6.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (57)

Outer Limit: 34,631,178 km

• M1: 136,583 km (0.058 R)
• M2: 217,964 km (0.106 R)
• M3: 285,283 km (0.055 R)
• M4: 467,344 km (0.11 R)
• M5: 573,409 km (0.105 R)
• M6: 673,041 km (0.084 R)
• M7: 789,877 km (0.074 R)
• M8: 978,520 km (0.06 R)
• M9: 1,050,775 km (0.111 R)
• M10: 1,137,542 km (0.059 R)
• M11: 1,226,852 km (0.103 R)
• M12: 1,285,644 km (0.109 R)
• M13: 1,385,725 km (0.113 R)
• M14: 1,467,705 km (0.108 R)
• M15: 1,565,392 km (0.072 R)
• M16: 1,651,112 km (0.056 R)
• M17: 1,752,988 km (0.066 R)
• M18: 2,158,099 km (0.067 R)
• M19: 2,318,617 km (0.119 R)
• M20: 2,400,298 km (0.066 R)
• M21: 2,524,763 km (0.112 R)
• M22: 2,642,946 km (0.066 R)
• M23: 2,858,367 km (0.103 R)
• M24: 3,133,776 km (0.044 R)
• M25: 3,315,986 km (0.059 R)
• M26: 3,389,888 km (0.065 R)
• M27: 3,482,938 km (0.069 R)
• M28: 3,633,732 km (0.089 R)
• M29: 3,710,027 km (0.081 R)
• M30: 3,873,837 km (0.046 R)
• M31: 4,059,787 km (0.034 R)
• M32: 4,198,614 km (0.086 R)
• M33: 4,604,174 km (0.1 R)
• M34: 4,676,429 km (0.059 R)
• M35: 5,171,598 km (0.115 R)
• M36: 5,257,468 km (0.105 R)
• M37: 5,333,164 km (0.08 R)
• M38: 5,452,693 km (0.11 R)
• M39: 5,816,664 km (0.109 R)
• M40: 5,894,904 km (0.085 R)
• M41: 6,018,622 km (0.091 R)
• M42: 6,177,195 km (0.036 R)
• M43: 6,291,338 km (0.076 R)
• M44: 6,556,725 km (0.05 R)
• M45: 6,708,268 km (0.037 R)
• M46: 6,790,397 km (0.12 R)
• M47: 6,920,098 km (0.119 R)
• M48: 7,002,976 km (0.116 R)
• M49: 7,074,483 km (0.099 R)
• M50: 7,145,991 km (0.088 R)
• M51: 7,217,948 km (0.109 R)
• M52: 7,410,779 km (0.099 R)
• M53: 7,863,313 km (0.082 R)
• M54: 8,111,645 km (0.102 R)
• M55: 8,174,177 km (0.053 R)
• M56: 8,425,651 km (0.045 R)
• M57: 8,489,081 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.9

Radius: 11.7

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.6 AU - 1.64 AU

Year: 1331 Days

Day: 10.3 Hours

Environment

Temp: -185 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (51)

Outer Limit: 34,631,178 km

• M1: 150,795 km (0.063 R)
• M2: 232,176 km (0.106 R)
• M3: 306,376 km (0.057 R)
• M4: 407,056 km (0.085 R)
• M5: 485,595 km (0.075 R)
• M6: 585,526 km (0.082 R)
• M7: 662,120 km (0.096 R)
• M8: 753,524 km (0.065 R)
• M9: 902,823 km (0.104 R)
• M10: 1,069,026 km (0.068 R)
• M11: 1,205,609 km (0.092 R)
• M12: 1,286,392 km (0.062 R)
• M13: 1,390,213 km (0.049 R)
• M14: 1,482,515 km (0.065 R)
• M15: 1,621,491 km (0.064 R)
• M16: 1,726,659 km (0.095 R)
• M17: 2,064,600 km (0.03 R)
• M18: 2,146,281 km (0.051 R)
• M19: 2,296,028 km (0.069 R)
• M20: 2,501,276 km (0.027 R)
• M21: 2,775,489 km (0.103 R)
• M22: 2,866,146 km (0.071 R)
• M23: 2,948,424 km (0.107 R)
• M24: 3,022,326 km (0.063 R)
• M25: 3,106,250 km (0.077 R)
• M26: 3,238,495 km (0.103 R)
• M27: 3,430,578 km (0.12 R)
• M28: 3,656,172 km (0.082 R)
• M29: 3,805,919 km (0.099 R)
• M30: 3,917,071 km (0.074 R)
• M31: 4,163,458 km (0.107 R)
• M32: 4,414,932 km (0.071 R)
• M33: 4,585,474 km (0.11 R)
• M34: 4,660,722 km (0.067 R)
• M35: 4,758,110 km (0.101 R)
• M36: 4,834,405 km (0.075 R)
• M37: 4,932,990 km (0.084 R)
• M38: 5,032,323 km (0.065 R)
• M39: 5,527,641 km (0.119 R)
• M40: 5,897,597 km (0.111 R)
• M41: 5,991,395 km (0.099 R)
• M42: 6,228,059 km (0.109 R)
• M43: 6,311,684 km (0.117 R)
• M44: 6,479,981 km (0.106 R)
• M45: 6,613,123 km (0.111 R)
• M46: 7,093,033 km (0.087 R)
• M47: 7,255,497 km (0.102 R)
• M48: 7,737,651 km (0.087 R)
• M49: 7,995,557 km (0.097 R)
• M50: 8,692,833 km (0.113 R)
• M51: 8,920,671 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22.6

Radius: 10

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.73 AU - 1.77 AU

Year: 1495 Days

Day: 14.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 34,631,178 km

• M1: 125,363 km (0.099 R)
• M2: 255,364 km (0.111 R)
• M3: 321,486 km (0.088 R)
• M4: 391,049 km (0.108 R)
• M5: 480,957 km (0.096 R)
• M6: 650,003 km (0.061 R)
• M7: 744,100 km (0.085 R)
• M8: 822,339 km (0.076 R)
• M9: 903,571 km (0.088 R)
• M10: 1,488,200 km (0.064 R)
• M11: 1,589,029 km (0.085 R)
• M12: 1,774,680 km (0.079 R)
• M13: 1,891,515 km (0.117 R)
• M14: 2,113,220 km (0.08 R)
• M15: 2,247,409 km (0.098 R)
• M16: 2,651,024 km (0.116 R)
• M17: 2,774,442 km (0.101 R)
• M18: 3,049,403 km (0.09 R)
• M19: 3,537,092 km (0.098 R)
• M20: 3,709,279 km (0.086 R)
• M21: 4,067,865 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 532.8

Radius: 13.5

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 2.78 AU - 4.18 AU

Year: 4192 Days

Day: 5.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (75)

Outer Limit: 34,631,178 km

• M1: 174,132 km (0.099 R)
• M2: 276,606 km (0.114 R)
• M3: 364,121 km (0.099 R)
• M4: 955,033 km (0.088 R)
• M5: 1,074,711 km (0.114 R)
• M6: 1,212,790 km (0.096 R)
• M7: 1,370,765 km (0.087 R)
• M8: 1,766,751 km (0.046 R)
• M9: 1,993,990 km (0.099 R)
• M10: 2,295,729 km (0.088 R)
• M11: 2,460,586 km (0.055 R)
• M12: 2,837,572 km (0.099 R)
• M13: 3,159,806 km (0.119 R)
• M14: 3,513,007 km (0.072 R)
• M15: 3,665,746 km (0.107 R)
• M16: 3,840,028 km (0.115 R)
• M17: 4,017,301 km (0.048 R)
• M18: 4,136,980 km (0.073 R)
• M19: 4,237,509 km (0.073 R)
• M20: 4,400,421 km (0.034 R)
• M21: 4,523,840 km (0.115 R)
• M22: 4,648,455 km (0.089 R)
• M23: 5,180,275 km (0.054 R)
• M24: 5,530,932 km (0.092 R)
• M25: 5,821,601 km (0.09 R)
• M26: 6,025,802 km (0.107 R)
• M27: 6,301,810 km (0.112 R)
• M28: 6,488,060 km (0.034 R)
• M29: 6,842,457 km (0.085 R)
• M30: 7,251,757 km (0.08 R)
• M31: 7,619,618 km (0.078 R)
• M32: 7,918,365 km (0.062 R)
• M33: 8,044,027 km (0.077 R)
• M34: 8,348,160 km (0.085 R)
• M35: 8,501,647 km (0.071 R)
• M36: 8,682,062 km (0.037 R)
• M37: 9,683,021 km (0.034 R)
• M38: 10,088,282 km (0.065 R)
• M39: 10,554,429 km (0.117 R)
• M40: 10,915,558 km (0.1 R)
• M41: 11,252,602 km (0.047 R)
• M42: 11,507,667 km (0.116 R)
• M43: 11,764,526 km (0.079 R)
• M44: 11,965,735 km (0.084 R)
• M45: 12,255,207 km (0.09 R)
• M46: 12,459,109 km (0.082 R)
• M47: 12,781,941 km (0.099 R)
• M48: 14,931,214 km (0.055 R)
• M49: 15,024,563 km (0.058 R)
• M50: 15,211,710 km (0.038 R)
• M51: 15,336,774 km (0.098 R)
• M52: 15,777,788 km (0.086 R)
• M53: 16,063,371 km (0.098 R)
• M54: 16,318,734 km (0.099 R)
• M55: 16,736,561 km (0.088 R)
• M56: 17,223,053 km (0.111 R)
• M57: 17,451,639 km (0.062 R)
• M58: 18,143,679 km (0.111 R)
• M59: 18,276,521 km (0.118 R)
• M60: 18,878,204 km (0.093 R)
• M61: 19,113,970 km (0.069 R)
• M62: 19,283,016 km (0.061 R)
• M63: 19,554,386 km (0.101 R)
• M64: 19,656,562 km (0.111 R)
• M65: 19,895,470 km (0.116 R)
• M66: 20,756,854 km (0.089 R)
• M67: 21,419,722 km (0.088 R)
• M68: 22,089,472 km (0.113 R)
• M69: 22,516,125 km (0.119 R)
• M70: 22,909,568 km (0.043 R)
• M71: 23,413,563 km (0.086 R)
• M72: 23,522,021 km (0.117 R)
• M73: 23,666,982 km (0.107 R)
• M74: 24,395,972 km (0.079 R)
• M75: 24,505,926 km (0.045 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 292.7

Radius: 11.4

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 5.83 AU - 6.09 AU

Year: 9395 Days

Day: 11.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (59)

Outer Limit: 34,631,178 km

• M1: 187,147 km (0.065 R)
• M2: 357,988 km (0.072 R)
• M3: 449,242 km (0.109 R)
• M4: 586,573 km (0.099 R)
• M5: 1,042,099 km (0.107 R)
• M6: 1,298,510 km (0.099 R)
• M7: 1,539,811 km (0.037 R)
• M8: 1,629,570 km (0.084 R)
• M9: 2,307,846 km (0.117 R)
• M10: 2,411,518 km (0.096 R)
• M11: 3,995,759 km (0.048 R)
• M12: 4,273,114 km (0.11 R)
• M13: 4,427,050 km (0.071 R)
• M14: 5,197,180 km (0.081 R)
• M15: 5,416,939 km (0.093 R)
• M16: 6,210,256 km (0.104 R)
• M17: 6,355,815 km (0.049 R)
• M18: 6,472,950 km (0.095 R)
• M19: 7,966,984 km (0.106 R)
• M20: 8,606,515 km (0.053 R)
• M21: 8,899,727 km (0.094 R)
• M22: 10,105,187 km (0.094 R)
• M23: 10,622,496 km (0.051 R)
• M24: 10,902,094 km (0.065 R)
• M25: 12,962,805 km (0.081 R)
• M26: 13,111,805 km (0.074 R)
• M27: 13,336,501 km (0.113 R)
• M28: 14,018,218 km (0.108 R)
• M29: 14,479,129 km (0.112 R)
• M30: 14,789,096 km (0.04 R)
• M31: 14,984,022 km (0.11 R)
• M32: 15,062,112 km (0.067 R)
• M33: 15,179,696 km (0.111 R)
• M34: 15,851,540 km (0.118 R)
• M35: 16,573,350 km (0.096 R)
• M36: 17,347,070 km (0.064 R)
• M37: 17,593,757 km (0.055 R)
• M38: 17,966,106 km (0.065 R)
• M39: 18,299,260 km (0.115 R)
• M40: 18,466,660 km (0.087 R)
• M41: 18,718,583 km (0.1 R)
• M42: 20,644,656 km (0.079 R)
• M43: 21,125,015 km (0.057 R)
• M44: 21,697,526 km (0.118 R)
• M45: 22,274,973 km (0.053 R)
• M46: 23,083,101 km (0.11 R)
• M47: 23,309,293 km (0.093 R)
• M48: 23,445,277 km (0.087 R)
• M49: 24,037,984 km (0.071 R)
• M50: 24,359,171 km (0.114 R)
• M51: 24,820,381 km (0.093 R)
• M52: 25,284,583 km (0.1 R)
• M53: 26,457,431 km (0.093 R)
• M54: 27,888,334 km (0.103 R)
• M55: 28,419,257 km (0.044 R)
• M56: 28,856,232 km (0.051 R)
• M57: 31,925,981 km (0.097 R)
• M58: 32,228,468 km (0.075 R)
• M59: 33,601,627 km (0.087 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 480 - 20,153 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit