🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 326.2

Radius: 14.7

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.65 AU - 0.69 AU

Year: 379 Days

Day: 12.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 75,972,336 km

• M1: 196,871 km (0.087 R)
• M2: 322,084 km (0.052 R)
• M3: 486,043 km (0.104 R)
• M4: 642,672 km (0.105 R)
• M5: 739,761 km (0.052 R)
• M6: 889,808 km (0.064 R)
• M7: 983,157 km (0.035 R)
• M8: 1,181,225 km (0.113 R)
• M9: 1,301,352 km (0.071 R)
• M10: 1,458,878 km (0.119 R)
• M11: 1,749,397 km (0.062 R)
• M12: 1,847,534 km (0.099 R)
• M13: 1,966,165 km (0.12 R)
• M14: 2,077,914 km (0.096 R)
• M15: 2,220,930 km (0.065 R)
• M16: 2,337,616 km (0.074 R)
• M17: 2,521,921 km (0.061 R)
• M18: 2,623,647 km (0.114 R)
• M19: 2,721,634 km (0.094 R)
• M20: 2,863,004 km (0.092 R)
• M21: 3,044,616 km (0.044 R)
• M22: 3,213,512 km (0.106 R)
• M23: 3,391,384 km (0.076 R)
• M24: 3,647,046 km (0.112 R)
• M25: 3,739,498 km (0.109 R)
• M26: 3,844,516 km (0.09 R)
• M27: 3,956,564 km (0.09 R)
• M28: 4,075,495 km (0.12 R)
• M29: 4,189,788 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.4

Radius: 11.7

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 2.85 AU - 3.37 AU

Year: 3786 Days

Day: 14.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (67)

Outer Limit: 75,972,336 km

• M1: 177,124 km (0.078 R)
• M2: 272,717 km (0.089 R)
• M3: 366,964 km (0.107 R)
• M4: 512,373 km (0.112 R)
• M5: 640,428 km (0.084 R)
• M6: 904,469 km (0.115 R)
• M7: 1,083,837 km (0.072 R)
• M8: 1,275,621 km (0.078 R)
• M9: 1,391,859 km (0.118 R)
• M10: 1,953,898 km (0.1 R)
• M11: 2,882,901 km (0.077 R)
• M12: 3,224,881 km (0.092 R)
• M13: 3,327,206 km (0.096 R)
• M14: 3,564,917 km (0.074 R)
• M15: 3,716,460 km (0.076 R)
• M16: 3,947,738 km (0.084 R)
• M17: 4,152,238 km (0.047 R)
• M18: 4,263,689 km (0.075 R)
• M19: 4,538,650 km (0.105 R)
• M20: 4,869,710 km (0.105 R)
• M21: 4,970,688 km (0.104 R)
• M22: 5,225,902 km (0.104 R)
• M23: 5,820,554 km (0.119 R)
• M24: 6,017,574 km (0.104 R)
• M25: 6,344,745 km (0.116 R)
• M26: 6,547,600 km (0.099 R)
• M27: 6,808,797 km (0.045 R)
• M28: 6,997,590 km (0.04 R)
• M29: 7,149,881 km (0.111 R)
• M30: 7,380,411 km (0.045 R)
• M31: 7,515,947 km (0.082 R)
• M32: 8,186,295 km (0.083 R)
• M33: 8,306,571 km (0.064 R)
• M34: 8,978,864 km (0.105 R)
• M35: 9,206,851 km (0.101 R)
• M36: 9,353,008 km (0.102 R)
• M37: 9,436,783 km (0.074 R)
• M38: 9,923,724 km (0.07 R)
• M39: 10,030,687 km (0.046 R)
• M40: 10,116,556 km (0.041 R)
• M41: 10,224,117 km (0.09 R)
• M42: 10,505,810 km (0.1 R)
• M43: 11,321,417 km (0.069 R)
• M44: 11,500,486 km (0.101 R)
• M45: 11,590,394 km (0.032 R)
• M46: 11,861,466 km (0.106 R)
• M47: 11,975,010 km (0.107 R)
• M48: 12,203,297 km (0.097 R)
• M49: 12,340,927 km (0.098 R)
• M50: 12,756,809 km (0.118 R)
• M51: 12,989,882 km (0.084 R)
• M52: 13,107,017 km (0.086 R)
• M53: 13,342,335 km (0.08 R)
• M54: 13,460,368 km (0.059 R)
• M55: 13,745,352 km (0.099 R)
• M56: 13,840,795 km (0.114 R)
• M57: 13,984,409 km (0.109 R)
• M58: 14,709,659 km (0.118 R)
• M59: 14,782,962 km (0.091 R)
• M60: 15,052,388 km (0.047 R)
• M61: 15,621,159 km (0.094 R)
• M62: 15,920,654 km (0.067 R)
• M63: 16,046,017 km (0.051 R)
• M64: 16,171,679 km (0.067 R)
• M65: 16,322,923 km (0.081 R)
• M66: 16,881,671 km (0.11 R)
• M67: 17,214,676 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557.8

Radius: 14.7

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 3.5 AU - 5.54 AU

Year: 6633 Days

Day: 9.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (74)

Outer Limit: 75,972,336 km

• M1: 423,811 km (0.111 R)
• M2: 527,781 km (0.092 R)
• M3: 643,570 km (0.11 R)
• M4: 850,613 km (0.06 R)
• M5: 1,190,051 km (0.056 R)
• M6: 1,418,188 km (0.069 R)
• M7: 1,572,872 km (0.099 R)
• M8: 1,825,244 km (0.116 R)
• M9: 2,619,309 km (0.061 R)
• M10: 2,833,683 km (0.101 R)
• M11: 3,348,748 km (0.047 R)
• M12: 3,464,687 km (0.057 R)
• M13: 3,724,688 km (0.085 R)
• M14: 3,893,584 km (0.108 R)
• M15: 4,314,253 km (0.039 R)
• M16: 5,119,389 km (0.063 R)
• M17: 5,886,527 km (0.112 R)
• M18: 6,631,075 km (0.081 R)
• M19: 7,619,020 km (0.107 R)
• M20: 8,781,245 km (0.048 R)
• M21: 9,300,948 km (0.097 R)
• M22: 9,630,961 km (0.111 R)
• M23: 9,730,743 km (0.082 R)
• M24: 10,065,693 km (0.096 R)
• M25: 10,166,970 km (0.099 R)
• M26: 10,438,640 km (0.057 R)
• M27: 11,128,286 km (0.095 R)
• M28: 11,373,178 km (0.073 R)
• M29: 11,513,950 km (0.044 R)
• M30: 11,904,101 km (0.088 R)
• M31: 12,479,305 km (0.111 R)
• M32: 12,770,273 km (0.093 R)
• M33: 13,470,540 km (0.066 R)
• M34: 13,919,334 km (0.071 R)
• M35: 14,831,432 km (0.103 R)
• M36: 15,450,318 km (0.086 R)
• M37: 15,959,550 km (0.113 R)
• M38: 16,235,857 km (0.115 R)
• M39: 16,394,580 km (0.101 R)
• M40: 17,845,829 km (0.091 R)
• M41: 18,215,186 km (0.065 R)
• M42: 18,462,771 km (0.106 R)
• M43: 19,590,589 km (0.082 R)
• M44: 20,440,604 km (0.094 R)
• M45: 20,654,978 km (0.051 R)
• M46: 20,783,931 km (0.07 R)
• M47: 21,825,432 km (0.111 R)
• M48: 22,617,702 km (0.032 R)
• M49: 23,106,588 km (0.053 R)
• M50: 24,094,682 km (0.038 R)
• M51: 24,411,979 km (0.062 R)
• M52: 25,372,248 km (0.095 R)
• M53: 25,741,306 km (0.109 R)
• M54: 26,484,807 km (0.115 R)
• M55: 26,718,629 km (0.113 R)
• M56: 26,859,250 km (0.073 R)
• M57: 27,047,145 km (0.098 R)
• M58: 27,376,859 km (0.097 R)
• M59: 27,613,224 km (0.085 R)
• M60: 27,992,903 km (0.105 R)
• M61: 28,326,506 km (0.064 R)
• M62: 28,613,585 km (0.052 R)
• M63: 28,901,561 km (0.039 R)
• M64: 29,335,394 km (0.048 R)
• M65: 29,577,294 km (0.046 R)
• M66: 30,944,320 km (0.119 R)
• M67: 31,042,755 km (0.115 R)
• M68: 31,833,978 km (0.06 R)
• M69: 32,032,943 km (0.03 R)
• M70: 32,431,771 km (0.092 R)
• M71: 32,631,933 km (0.063 R)
• M72: 32,782,279 km (0.112 R)
• M73: 33,486,885 km (0.111 R)
• M74: 33,739,855 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 536.6

Radius: 12.1

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 4.88 AU - 5.98 AU

Year: 8734 Days

Day: 10.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (85)

Outer Limit: 75,972,336 km

• M1: 203,304 km (0.081 R)
• M2: 349,161 km (0.089 R)
• M3: 817,104 km (0.081 R)
• M4: 943,813 km (0.045 R)
• M5: 1,164,919 km (0.112 R)
• M6: 1,365,679 km (0.12 R)
• M7: 1,441,525 km (0.108 R)
• M8: 1,578,108 km (0.07 R)
• M9: 1,760,169 km (0.071 R)
• M10: 1,864,438 km (0.116 R)
• M11: 2,014,036 km (0.031 R)
• M12: 2,167,823 km (0.075 R)
• M13: 2,280,021 km (0.092 R)
• M14: 2,724,776 km (0.089 R)
• M15: 3,120,312 km (0.084 R)
• M16: 3,196,607 km (0.057 R)
• M17: 3,429,232 km (0.105 R)
• M18: 4,021,340 km (0.067 R)
• M19: 4,938,974 km (0.026 R)
• M20: 5,360,391 km (0.103 R)
• M21: 6,014,433 km (0.081 R)
• M22: 6,173,904 km (0.079 R)
• M23: 6,958,994 km (0.108 R)
• M24: 7,059,374 km (0.082 R)
• M25: 7,602,863 km (0.078 R)
• M26: 7,706,385 km (0.068 R)
• M27: 7,810,206 km (0.088 R)
• M28: 7,914,625 km (0.077 R)
• M29: 8,550,565 km (0.077 R)
• M30: 8,802,488 km (0.107 R)
• M31: 9,239,763 km (0.044 R)
• M32: 9,721,767 km (0.09 R)
• M33: 10,173,852 km (0.049 R)
• M34: 10,364,290 km (0.049 R)
• M35: 10,632,968 km (0.097 R)
• M36: 10,710,160 km (0.104 R)
• M37: 10,787,502 km (0.036 R)
• M38: 11,216,250 km (0.036 R)
• M39: 11,650,682 km (0.05 R)
• M40: 11,810,004 km (0.076 R)
• M41: 12,131,041 km (0.086 R)
• M42: 13,526,789 km (0.115 R)
• M43: 13,652,302 km (0.032 R)
• M44: 14,414,054 km (0.105 R)
• M45: 14,628,129 km (0.057 R)
• M46: 14,972,802 km (0.1 R)
• M47: 15,846,304 km (0.119 R)
• M48: 17,096,793 km (0.07 R)
• M49: 17,187,449 km (0.036 R)
• M50: 17,368,911 km (0.095 R)
• M51: 17,596,749 km (0.08 R)
• M52: 17,688,303 km (0.099 R)
• M53: 18,009,489 km (0.11 R)
• M54: 18,147,718 km (0.118 R)
• M55: 18,378,996 km (0.113 R)
• M56: 18,518,122 km (0.105 R)
• M57: 21,864,626 km (0.103 R)
• M58: 22,110,715 km (0.093 R)
• M59: 23,556,130 km (0.119 R)
• M60: 23,909,629 km (0.085 R)
• M61: 25,341,131 km (0.099 R)
• M62: 26,015,070 km (0.116 R)
• M63: 27,433,856 km (0.118 R)
• M64: 27,539,921 km (0.09 R)
• M65: 28,125,896 km (0.06 R)
• M66: 28,393,676 km (0.053 R)
• M67: 29,039,639 km (0.115 R)
• M68: 30,236,422 km (0.084 R)
• M69: 30,675,642 km (0.099 R)
• M70: 32,005,866 km (0.104 R)
• M71: 32,453,463 km (0.112 R)
• M72: 32,790,507 km (0.106 R)
• M73: 34,036,358 km (0.108 R)
• M74: 34,378,937 km (0.088 R)
• M75: 34,493,379 km (0.078 R)
• M76: 36,108,438 km (0.068 R)
• M77: 36,224,676 km (0.085 R)
• M78: 36,749,615 km (0.071 R)
• M79: 36,925,093 km (0.113 R)
• M80: 37,689,089 km (0.108 R)
• M81: 37,866,063 km (0.109 R)
• M82: 37,984,246 km (0.082 R)
• M83: 38,161,669 km (0.117 R)
• M84: 39,771,492 km (0.079 R)
• M85: 40,313,036 km (0.093 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 741.2

Radius: 4.8

Gravity: 32.17 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 5.76 AU - 9.58 AU

Year: 14662 Days

Day: 24.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 75,972,336 km

• M1: 65,374 km (0.098 R)
• M2: 105,167 km (0.051 R)
• M3: 153,787 km (0.091 R)
• M4: 605,871 km (0.059 R)
• M5: 645,365 km (0.118 R)
• M6: 685,757 km (0.109 R)
• M7: 747,989 km (0.105 R)
• M8: 790,475 km (0.117 R)
• M9: 1,135,597 km (0.072 R)
• M10: 1,234,781 km (0.096 R)
• M11: 1,389,166 km (0.099 R)
• M12: 1,549,684 km (0.109 R)
• M13: 2,664,488 km (0.084 R)
• M14: 3,745,931 km (0.049 R)
• M15: 3,969,280 km (0.054 R)
• M16: 4,120,673 km (0.103 R)
• M17: 4,665,060 km (0.086 R)
• M18: 4,986,396 km (0.106 R)
• M19: 5,273,325 km (0.034 R)
• M20: 5,481,565 km (0.086 R)
• M21: 5,734,984 km (0.106 R)
• M22: 6,429,417 km (0.074 R)
• M23: 6,876,865 km (0.074 R)
• M24: 7,754,406 km (0.114 R)
• M25: 8,182,256 km (0.065 R)
• M26: 8,326,617 km (0.111 R)
• M27: 8,423,258 km (0.036 R)
• M28: 9,662,975 km (0.087 R)
• M29: 9,713,689 km (0.092 R)
• M30: 11,924,596 km (0.106 R)
• M31: 12,583,724 km (0.115 R)
• M32: 12,861,827 km (0.091 R)
• M33: 13,085,775 km (0.11 R)
• M34: 13,198,123 km (0.095 R)
• M35: 13,594,258 km (0.095 R)
• M36: 15,632,678 km (0.114 R)
• M37: 15,692,368 km (0.11 R)
• M38: 15,931,575 km (0.116 R)
• M39: 16,535,053 km (0.074 R)
• M40: 16,717,562 km (0.072 R)
• M41: 18,138,742 km (0.071 R)
• M42: 18,389,767 km (0.055 R)
• M43: 18,452,748 km (0.114 R)
• M44: 18,578,859 km (0.113 R)
• M45: 18,641,989 km (0.044 R)
• M46: 20,635,381 km (0.08 R)
• M47: 23,373,770 km (0.062 R)
• M48: 25,238,358 km (0.112 R)
• M49: 25,588,865 km (0.094 R)
• M50: 26,011,629 km (0.064 R)
• M51: 26,082,389 km (0.096 R)
• M52: 26,650,113 km (0.095 R)
• M53: 26,792,679 km (0.047 R)
• M54: 29,475,717 km (0.081 R)
• M55: 29,696,973 km (0.067 R)
• M56: 29,844,775 km (0.118 R)
• M57: 31,261,168 km (0.101 R)
• M58: 31,637,556 km (0.092 R)
• M59: 33,081,325 km (0.043 R)
• M60: 33,618,681 km (0.04 R)
• M61: 33,772,766 km (0.064 R)
• M62: 33,927,151 km (0.094 R)
• M63: 34,236,370 km (0.063 R)
• M64: 35,013,681 km (0.096 R)
• M65: 35,169,861 km (0.119 R)
• M66: 35,247,951 km (0.104 R)
• M67: 35,404,580 km (0.101 R)
• M68: 35,954,053 km (0.061 R)
• M69: 37,539,940 km (0.082 R)
• M70: 38,180,518 km (0.102 R)
• M71: 38,905,619 km (0.098 R)
• M72: 39,553,976 km (0.093 R)
• M73: 39,879,501 km (0.087 R)
• M74: 40,124,243 km (0.108 R)
• M75: 40,287,604 km (0.1 R)
• M76: 40,943,441 km (0.105 R)
• M77: 43,686,019 km (0.071 R)
• M78: 44,867,393 km (0.091 R)
• M79: 46,658,977 km (0.067 R)
• M80: 47,175,240 km (0.075 R)
• M81: 48,126,383 km (0.094 R)
• M82: 48,300,066 km (0.087 R)
• M83: 48,473,899 km (0.074 R)
• M84: 48,909,378 km (0.058 R)
• M85: 49,346,204 km (0.101 R)
• M86: 51,017,811 km (0.08 R)
• M87: 51,727,204 km (0.075 R)
• M88: 52,083,097 km (0.096 R)
• M89: 52,350,578 km (0.116 R)
• M90: 52,886,886 km (0.098 R)
• M91: 54,687,746 km (0.106 R)
• M92: 55,231,983 km (0.089 R)
• M93: 55,777,865 km (0.071 R)
• M94: 56,142,884 km (0.044 R)
• M95: 61,711,515 km (0.093 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 494.5

Radius: 8

Gravity: 7.73 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 10.17 AU - 10.83 AU

Year: 23485 Days

Day: 18.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 75,972,336 km

• M1: 164,258 km (0.083 R)
• M2: 364,121 km (0.063 R)
• M3: 823,835 km (0.064 R)
• M4: 1,025,194 km (0.118 R)
• M5: 1,214,585 km (0.097 R)
• M6: 1,474,736 km (0.077 R)
• M7: 1,752,389 km (0.109 R)
• M8: 2,321,161 km (0.087 R)
• M9: 2,607,640 km (0.046 R)
• M10: 3,097,125 km (0.107 R)
• M11: 3,174,916 km (0.069 R)
• M12: 3,332,592 km (0.114 R)
• M13: 3,989,027 km (0.118 R)
• M14: 4,463,252 km (0.108 R)
• M15: 4,864,624 km (0.044 R)
• M16: 6,136,804 km (0.081 R)
• M17: 7,039,029 km (0.095 R)
• M18: 7,558,133 km (0.093 R)
• M19: 7,928,687 km (0.115 R)
• M20: 7,982,243 km (0.119 R)
• M21: 8,577,942 km (0.081 R)
• M22: 8,798,150 km (0.11 R)
• M23: 9,984,760 km (0.105 R)
• M24: 11,160,749 km (0.1 R)
• M25: 12,132,836 km (0.063 R)
• M26: 12,442,205 km (0.105 R)
• M27: 12,754,116 km (0.104 R)
• M28: 12,816,798 km (0.098 R)
• M29: 13,513,325 km (0.085 R)
• M30: 13,577,204 km (0.116 R)
• M31: 13,641,231 km (0.1 R)
• M32: 14,027,493 km (0.07 R)
• M33: 15,541,424 km (0.057 R)
• M34: 16,147,744 km (0.119 R)
• M35: 16,419,713 km (0.1 R)
• M36: 16,761,993 km (0.102 R)
• M37: 17,732,434 km (0.073 R)
• M38: 23,155,955 km (0.082 R)
• M39: 25,805,932 km (0.085 R)
• M40: 26,603,289 km (0.107 R)
• M41: 27,166,375 km (0.1 R)
• M42: 27,489,955 km (0.103 R)
• M43: 28,304,216 km (0.106 R)
• M44: 29,540,643 km (0.065 R)
• M45: 31,131,766 km (0.108 R)
• M46: 31,640,099 km (0.069 R)
• M47: 31,810,042 km (0.107 R)
• M48: 32,236,396 km (0.061 R)
• M49: 32,578,975 km (0.066 R)
• M50: 34,222,158 km (0.099 R)
• M51: 35,626,733 km (0.104 R)
• M52: 35,980,831 km (0.071 R)
• M53: 37,319,134 km (0.108 R)
• M54: 38,764,399 km (0.078 R)
• M55: 42,363,424 km (0.072 R)
• M56: 43,020,608 km (0.053 R)
• M57: 43,208,951 km (0.11 R)
• M58: 43,491,991 km (0.043 R)
• M59: 44,821,317 km (0.11 R)
• M60: 49,085,006 km (0.114 R)
• M61: 50,866,118 km (0.11 R)
• M62: 51,664,522 km (0.04 R)
• M63: 51,965,064 km (0.067 R)
• M64: 52,065,295 km (0.119 R)
• M65: 53,780,135 km (0.089 R)
• M66: 54,389,747 km (0.071 R)
• M67: 54,899,427 km (0.115 R)
• M68: 57,057,675 km (0.063 R)
• M69: 57,991,166 km (0.109 R)
• M70: 58,199,256 km (0.112 R)
• M71: 59,243,599 km (0.082 R)
• M72: 60,294,075 km (0.102 R)
• M73: 68,806,344 km (0.07 R)
• M74: 69,136,955 km (0.054 R)
• M75: 70,353,635 km (0.036 R)
• M76: 71,465,745 km (0.049 R)
• M77: 72,920,285 km (0.189 R)
• M78: 73,032,633 km (0.221 R)
• M79: 73,257,329 km (0.07 R)
• M80: 73,820,266 km (0.15 R)
• M81: 75,063,724 km (0.221 R)
• M82: 75,972,381 km (0.098 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: 401 - 20,016 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit