🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.8

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.5 AU - 1.74 AU

Year: 789 Days

Day: 12.2 Hours

Environment

Temp: -57 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.42

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 1.51 AU - 2.05 AU

Year: 909 Days

Day: 27.1 Hours

Environment

Temp: -73 °C

Axial Tilt: 20.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 63,071,380 km

• M1: 74,051 km (0.11 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.54

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 2.26 AU - 2.88 AU

Year: 1577 Days

Day: 20.2 Hours

Environment

Temp: -112 °C

Axial Tilt: 27.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 4.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 536.5

Radius: 14.6

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 4.13 AU - 4.51 AU

Year: 3438 Days

Day: 11.1 Hours

Environment

Temp: -135 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (66)

Outer Limit: 63,071,380 km

• M1: 186,997 km (0.069 R)
• M2: 282,291 km (0.102 R)
• M3: 379,979 km (0.083 R)
• M4: 497,563 km (0.099 R)
• M5: 658,979 km (0.074 R)
• M6: 1,031,029 km (0.117 R)
• M7: 1,295,817 km (0.036 R)
• M8: 1,635,853 km (0.062 R)
• M9: 1,782,758 km (0.115 R)
• M10: 1,948,213 km (0.084 R)
• M11: 2,148,225 km (0.098 R)
• M12: 2,355,119 km (0.092 R)
• M13: 2,630,978 km (0.089 R)
• M14: 3,032,199 km (0.098 R)
• M15: 3,265,422 km (0.109 R)
• M16: 3,367,298 km (0.067 R)
• M17: 3,856,932 km (0.119 R)
• M18: 4,633,794 km (0.092 R)
• M19: 4,942,564 km (0.077 R)
• M20: 5,059,998 km (0.106 R)
• M21: 5,418,435 km (0.06 R)
• M22: 5,682,475 km (0.113 R)
• M23: 6,097,011 km (0.101 R)
• M24: 6,202,178 km (0.079 R)
• M25: 6,393,065 km (0.042 R)
• M26: 6,564,355 km (0.055 R)
• M27: 6,672,215 km (0.093 R)
• M28: 7,021,526 km (0.03 R)
• M29: 7,242,781 km (0.09 R)
• M30: 7,601,816 km (0.086 R)
• M31: 7,897,870 km (0.109 R)
• M32: 8,151,289 km (0.115 R)
• M33: 8,407,550 km (0.081 R)
• M34: 8,808,771 km (0.082 R)
• M35: 8,999,808 km (0.12 R)
• M36: 9,410,304 km (0.063 R)
• M37: 9,752,884 km (0.044 R)
• M38: 9,851,618 km (0.108 R)
• M39: 10,049,985 km (0.111 R)
• M40: 10,324,946 km (0.074 R)
• M41: 10,984,672 km (0.082 R)
• M42: 11,138,908 km (0.086 R)
• M43: 11,762,881 km (0.091 R)
• M44: 12,079,280 km (0.119 R)
• M45: 12,211,824 km (0.066 R)
• M46: 12,855,244 km (0.039 R)
• M47: 13,208,445 km (0.116 R)
• M48: 14,119,346 km (0.063 R)
• M49: 14,427,518 km (0.098 R)
• M50: 14,653,111 km (0.067 R)
• M51: 14,965,023 km (0.107 R)
• M52: 15,136,163 km (0.115 R)
• M53: 15,480,388 km (0.104 R)
• M54: 15,682,345 km (0.119 R)
• M55: 15,972,565 km (0.056 R)
• M56: 16,352,244 km (0.06 R)
• M57: 17,389,705 km (0.107 R)
• M58: 17,750,236 km (0.117 R)
• M59: 18,022,355 km (0.102 R)
• M60: 18,113,310 km (0.079 R)
• M61: 18,601,149 km (0.114 R)
• M62: 18,754,636 km (0.1 R)
• M63: 19,279,126 km (0.054 R)
• M64: 19,403,293 km (0.108 R)
• M65: 19,683,639 km (0.082 R)
• M66: 20,216,806 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 735.9

Radius: 10.4

Gravity: 6.8 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 5.06 AU - 5.28 AU

Year: 4501 Days

Day: 13.3 Hours

Environment

Temp: -147 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (83)

Outer Limit: 63,071,380 km

• M1: 134,040 km (0.092 R)
• M2: 210,484 km (0.071 R)
• M3: 286,031 km (0.069 R)
• M4: 956,529 km (0.074 R)
• M5: 1,023,399 km (0.094 R)
• M6: 1,092,064 km (0.116 R)
• M7: 1,205,160 km (0.092 R)
• M8: 1,553,125 km (0.065 R)
• M9: 1,681,480 km (0.113 R)
• M10: 1,747,004 km (0.113 R)
• M11: 1,880,894 km (0.025 R)
• M12: 1,949,111 km (0.057 R)
• M13: 2,053,081 km (0.071 R)
• M14: 2,450,413 km (0.088 R)
• M15: 3,030,853 km (0.092 R)
• M16: 3,254,202 km (0.11 R)
• M17: 3,399,163 km (0.078 R)
• M18: 3,483,087 km (0.083 R)
• M19: 3,825,367 km (0.089 R)
• M20: 4,156,278 km (0.103 R)
• M21: 4,382,021 km (0.109 R)
• M22: 4,565,577 km (0.11 R)
• M23: 5,035,614 km (0.105 R)
• M24: 5,819,806 km (0.111 R)
• M25: 5,996,481 km (0.106 R)
• M26: 6,098,208 km (0.082 R)
• M27: 6,536,978 km (0.059 R)
• M28: 7,012,849 km (0.108 R)
• M29: 7,120,111 km (0.117 R)
• M30: 7,499,940 km (0.074 R)
• M31: 7,747,524 km (0.105 R)
• M32: 8,279,195 km (0.098 R)
• M33: 8,707,344 km (0.099 R)
• M34: 9,201,316 km (0.116 R)
• M35: 9,318,900 km (0.07 R)
• M36: 9,824,092 km (0.111 R)
• M37: 10,186,119 km (0.102 R)
• M38: 10,277,374 km (0.114 R)
• M39: 10,368,778 km (0.119 R)
• M40: 10,521,966 km (0.09 R)
• M41: 10,861,254 km (0.116 R)
• M42: 11,392,925 km (0.049 R)
• M43: 11,646,045 km (0.108 R)
• M44: 12,029,165 km (0.093 R)
• M45: 12,416,474 km (0.067 R)
• M46: 12,742,298 km (0.12 R)
• M47: 13,005,141 km (0.116 R)
• M48: 14,141,786 km (0.09 R)
• M49: 14,277,621 km (0.071 R)
• M50: 14,482,121 km (0.11 R)
• M51: 14,550,637 km (0.055 R)
• M52: 14,653,411 km (0.051 R)
• M53: 14,928,671 km (0.066 R)
• M54: 15,379,858 km (0.119 R)
• M55: 15,624,600 km (0.113 R)
• M56: 15,729,767 km (0.04 R)
• M57: 16,082,519 km (0.063 R)
• M58: 16,544,926 km (0.033 R)
• M59: 17,156,183 km (0.097 R)
• M60: 17,410,051 km (0.1 R)
• M61: 17,519,257 km (0.099 R)
• M62: 18,105,381 km (0.057 R)
• M63: 18,549,238 km (0.12 R)
• M64: 18,623,589 km (0.12 R)
• M65: 18,884,487 km (0.109 R)
• M66: 19,334,627 km (0.115 R)
• M67: 19,485,422 km (0.113 R)
• M68: 20,168,935 km (0.052 R)
• M69: 20,360,270 km (0.091 R)
• M70: 21,598,641 km (0.034 R)
• M71: 22,148,114 km (0.095 R)
• M72: 22,464,215 km (0.1 R)
• M73: 23,220,731 km (0.09 R)
• M74: 23,541,918 km (0.101 R)
• M75: 23,703,035 km (0.081 R)
• M76: 24,391,783 km (0.11 R)
• M77: 24,677,216 km (0.11 R)
• M78: 25,004,835 km (0.08 R)
• M79: 25,292,811 km (0.1 R)
• M80: 26,329,973 km (0.09 R)
• M81: 27,085,293 km (0.109 R)
• M82: 27,169,666 km (0.116 R)
• M83: 27,423,384 km (0.063 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.8

Radius: 13.4

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 4.6 AU - 7.3 AU

Year: 5557 Days

Day: 8.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (75)

Outer Limit: 63,071,380 km

• M1: 178,620 km (0.096 R)
• M2: 299,944 km (0.071 R)
• M3: 446,550 km (0.077 R)
• M4: 589,715 km (0.095 R)
• M5: 764,595 km (0.109 R)
• M6: 1,092,364 km (0.032 R)
• M7: 1,413,700 km (0.053 R)
• M8: 1,638,994 km (0.084 R)
• M9: 1,765,404 km (0.087 R)
• M10: 1,970,952 km (0.119 R)
• M11: 2,304,555 km (0.067 R)
• M12: 2,488,561 km (0.085 R)
• M13: 2,871,681 km (0.078 R)
• M14: 3,137,516 km (0.047 R)
• M15: 3,504,929 km (0.073 R)
• M16: 3,741,592 km (0.113 R)
• M17: 4,205,944 km (0.106 R)
• M18: 4,356,440 km (0.047 R)
• M19: 5,056,109 km (0.069 R)
• M20: 5,432,796 km (0.114 R)
• M21: 5,679,782 km (0.117 R)
• M22: 6,356,713 km (0.042 R)
• M23: 6,472,053 km (0.117 R)
• M24: 7,178,903 km (0.055 R)
• M25: 7,329,248 km (0.073 R)
• M26: 7,419,905 km (0.115 R)
• M27: 7,541,528 km (0.076 R)
• M28: 7,941,253 km (0.113 R)
• M29: 8,316,295 km (0.1 R)
• M30: 8,442,705 km (0.08 R)
• M31: 8,537,850 km (0.118 R)
• M32: 8,697,321 km (0.102 R)
• M33: 8,825,676 km (0.076 R)
• M34: 9,084,032 km (0.118 R)
• M35: 9,509,488 km (0.106 R)
• M36: 10,109,226 km (0.109 R)
• M37: 10,515,982 km (0.087 R)
• M38: 10,790,046 km (0.1 R)
• M39: 10,962,682 km (0.045 R)
• M40: 11,101,359 km (0.084 R)
• M41: 11,662,052 km (0.038 R)
• M42: 12,232,019 km (0.067 R)
• M43: 12,339,880 km (0.09 R)
• M44: 12,957,270 km (0.113 R)
• M45: 13,696,433 km (0.103 R)
• M46: 14,639,797 km (0.087 R)
• M47: 14,946,024 km (0.12 R)
• M48: 16,192,474 km (0.107 R)
• M49: 16,350,598 km (0.088 R)
• M50: 16,948,242 km (0.102 R)
• M51: 17,756,220 km (0.032 R)
• M52: 17,919,431 km (0.068 R)
• M53: 20,085,010 km (0.119 R)
• M54: 20,169,982 km (0.035 R)
• M55: 20,254,953 km (0.115 R)
• M56: 21,545,235 km (0.035 R)
• M57: 21,893,798 km (0.111 R)
• M58: 22,420,083 km (0.09 R)
• M59: 22,640,740 km (0.099 R)
• M60: 23,262,020 km (0.116 R)
• M61: 23,844,105 km (0.089 R)
• M62: 24,385,650 km (0.108 R)
• M63: 24,521,634 km (0.106 R)
• M64: 24,657,918 km (0.058 R)
• M65: 25,711,087 km (0.092 R)
• M66: 26,685,418 km (0.055 R)
• M67: 27,106,685 km (0.105 R)
• M68: 27,435,950 km (0.103 R)
• M69: 28,145,792 km (0.106 R)
• M70: 28,336,230 km (0.057 R)
• M71: 30,555,664 km (0.084 R)
• M72: 30,947,312 km (0.069 R)
• M73: 31,242,169 km (0.118 R)
• M74: 31,587,441 km (0.066 R)
• M75: 32,331,391 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846.6

Radius: 9.1

Gravity: 10.22 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 8.46 AU - 10.66 AU

Year: 11318 Days

Day: 6.2 Hours

Environment

Temp: -176 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (88)

Outer Limit: 63,071,380 km

• M1: 132,843 km (0.109 R)
• M2: 307,573 km (0.097 R)
• M3: 559,197 km (0.115 R)
• M4: 663,167 km (0.104 R)
• M5: 736,470 km (0.058 R)
• M6: 851,960 km (0.09 R)
• M7: 1,281,306 km (0.074 R)
• M8: 1,618,499 km (0.091 R)
• M9: 1,797,418 km (0.11 R)
• M10: 1,983,069 km (0.05 R)
• M11: 2,488,860 km (0.109 R)
• M12: 2,576,973 km (0.075 R)
• M13: 2,878,562 km (0.097 R)
• M14: 4,585,324 km (0.109 R)
• M15: 4,730,434 km (0.11 R)
• M16: 5,905,376 km (0.113 R)
• M17: 6,504,964 km (0.068 R)
• M18: 6,832,733 km (0.103 R)
• M19: 6,957,049 km (0.115 R)
• M20: 7,082,113 km (0.102 R)
• M21: 7,589,848 km (0.099 R)
• M22: 8,065,569 km (0.045 R)
• M23: 8,329,161 km (0.05 R)
• M24: 9,596,554 km (0.111 R)
• M25: 10,394,958 km (0.1 R)
• M26: 11,019,978 km (0.094 R)
• M27: 11,117,216 km (0.029 R)
• M28: 11,410,578 km (0.042 R)
• M29: 11,509,013 km (0.066 R)
• M30: 11,955,263 km (0.032 R)
• M31: 13,172,691 km (0.114 R)
• M32: 14,803,009 km (0.084 R)
• M33: 14,964,125 km (0.094 R)
• M34: 15,288,154 km (0.096 R)
• M35: 15,450,917 km (0.03 R)
• M36: 15,559,824 km (0.119 R)
• M37: 16,053,198 km (0.03 R)
• M38: 16,998,806 km (0.072 R)
• M39: 18,191,849 km (0.075 R)
• M40: 18,422,080 km (0.09 R)
• M41: 19,705,929 km (0.104 R)
• M42: 20,180,005 km (0.106 R)
• M43: 20,597,832 km (0.093 R)
• M44: 20,898,075 km (0.099 R)
• M45: 21,260,251 km (0.043 R)
• M46: 21,442,162 km (0.043 R)
• M47: 21,502,899 km (0.113 R)
• M48: 21,990,737 km (0.081 R)
• M49: 22,544,100 km (0.054 R)
• M50: 23,539,075 km (0.064 R)
• M51: 23,915,912 km (0.116 R)
• M52: 25,636,288 km (0.064 R)
• M53: 26,218,523 km (0.087 R)
• M54: 26,674,348 km (0.105 R)
• M55: 26,805,096 km (0.083 R)
• M56: 27,001,668 km (0.092 R)
• M57: 27,264,362 km (0.078 R)
• M58: 27,858,714 km (0.109 R)
• M59: 29,329,261 km (0.034 R)
• M60: 29,396,730 km (0.089 R)
• M61: 29,464,198 km (0.053 R)
• M62: 29,938,274 km (0.101 R)
• M63: 30,962,271 km (0.106 R)
• M64: 31,651,319 km (0.083 R)
• M65: 32,834,489 km (0.074 R)
• M66: 33,325,768 km (0.114 R)
• M67: 33,607,610 km (0.116 R)
• M68: 35,171,955 km (0.038 R)
• M69: 35,818,817 km (0.117 R)
• M70: 36,614,677 km (0.109 R)
• M71: 37,343,219 km (0.082 R)
• M72: 39,408,417 km (0.104 R)
• M73: 39,781,215 km (0.117 R)
• M74: 40,605,200 km (0.108 R)
• M75: 40,680,448 km (0.083 R)
• M76: 42,575,255 km (0.104 R)
• M77: 42,651,699 km (0.077 R)
• M78: 43,418,239 km (0.051 R)
• M79: 44,576,426 km (0.116 R)
• M80: 45,901,264 km (0.065 R)
• M81: 49,069,298 km (0.106 R)
• M82: 49,149,333 km (0.082 R)
• M83: 49,229,518 km (0.086 R)
• M84: 49,952,823 km (0.107 R)
• M85: 52,307,195 km (0.045 R)
• M86: 52,716,794 km (0.044 R)
• M87: 53,621,562 km (0.102 R)
• M88: 54,946,849 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 431.7

Radius: 6.8

Gravity: 9.34 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 11.19 AU - 15.83 AU

Year: 19013 Days

Day: 19.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (98)

Outer Limit: 63,071,380 km

• M1: 236,664 km (0.047 R)
• M2: 333,603 km (0.072 R)
• M3: 411,843 km (0.064 R)
• M4: 607,517 km (0.115 R)
• M5: 685,906 km (0.078 R)
• M6: 964,308 km (0.11 R)
• M7: 1,509,742 km (0.093 R)
• M8: 1,928,915 km (0.104 R)
• M9: 2,227,662 km (0.074 R)
• M10: 2,605,247 km (0.106 R)
• M11: 3,139,611 km (0.101 R)
• M12: 3,526,471 km (0.081 R)
• M13: 3,598,427 km (0.084 R)
• M14: 4,153,585 km (0.097 R)
• M15: 4,577,695 km (0.118 R)
• M16: 4,854,750 km (0.113 R)
• M17: 5,718,229 km (0.042 R)
• M18: 6,276,379 km (0.106 R)
• M19: 6,717,543 km (0.085 R)
• M20: 7,168,580 km (0.088 R)
• M21: 7,629,491 km (0.075 R)
• M22: 7,676,166 km (0.04 R)
• M23: 7,863,612 km (0.099 R)
• M24: 8,147,698 km (0.113 R)
• M25: 8,195,271 km (0.09 R)
• M26: 8,483,246 km (0.103 R)
• M27: 8,774,514 km (0.026 R)
• M28: 9,019,704 km (0.09 R)
• M29: 9,567,233 km (0.103 R)
• M30: 9,870,318 km (0.074 R)
• M31: 9,972,194 km (0.09 R)
• M32: 10,176,694 km (0.111 R)
• M33: 10,331,079 km (0.079 R)
• M34: 11,647,092 km (0.05 R)
• M35: 12,079,280 km (0.066 R)
• M36: 12,188,187 km (0.088 R)
• M37: 12,242,791 km (0.103 R)
• M38: 13,351,012 km (0.094 R)
• M39: 13,407,260 km (0.055 R)
• M40: 13,860,093 km (0.1 R)
• M41: 14,606,736 km (0.063 R)
• M42: 15,780,631 km (0.093 R)
• M43: 15,899,710 km (0.061 R)
• M44: 16,499,598 km (0.116 R)
• M45: 17,290,223 km (0.098 R)
• M46: 17,782,998 km (0.076 R)
• M47: 18,280,411 km (0.106 R)
• M48: 18,656,350 km (0.065 R)
• M49: 22,153,649 km (0.049 R)
• M50: 22,286,941 km (0.074 R)
• M51: 22,554,422 km (0.077 R)
• M52: 22,755,781 km (0.111 R)
• M53: 23,092,675 km (0.091 R)
• M54: 24,113,082 km (0.041 R)
• M55: 24,663,453 km (0.071 R)
• M56: 24,940,059 km (0.086 R)
• M57: 25,566,426 km (0.115 R)
• M58: 25,706,300 km (0.103 R)
• M59: 26,338,949 km (0.102 R)
• M60: 28,339,671 km (0.076 R)
• M61: 29,578,042 km (0.088 R)
• M62: 30,019,356 km (0.092 R)
• M63: 30,314,662 km (0.063 R)
• M64: 32,031,896 km (0.057 R)
• M65: 32,560,874 km (0.111 R)
• M66: 34,010,926 km (0.082 R)
• M67: 34,550,376 km (0.109 R)
• M68: 34,627,718 km (0.095 R)
• M69: 36,185,930 km (0.066 R)
• M70: 36,657,761 km (0.055 R)
• M71: 37,766,880 km (0.031 R)
• M72: 37,846,466 km (0.045 R)
• M73: 38,565,733 km (0.107 R)
• M74: 38,726,251 km (0.095 R)
• M75: 39,047,737 km (0.092 R)
• M76: 40,017,730 km (0.113 R)
• M77: 41,159,461 km (0.118 R)
• M78: 41,405,549 km (0.09 R)
• M79: 42,394,541 km (0.105 R)
• M80: 43,141,483 km (0.115 R)
• M81: 43,224,659 km (0.103 R)
• M82: 43,725,363 km (0.106 R)
• M83: 44,060,163 km (0.093 R)
• M84: 44,648,232 km (0.039 R)
• M85: 45,154,322 km (0.063 R)
• M86: 45,238,845 km (0.098 R)
• M87: 45,916,972 km (0.059 R)
• M88: 46,257,307 km (0.1 R)
• M89: 47,971,549 km (0.052 R)
• M90: 51,021,102 km (0.108 R)
• M91: 54,402,313 km (0.113 R)
• M92: 56,757,283 km (0.082 R)
• M93: 56,939,792 km (0.096 R)
• M94: 57,213,855 km (0.12 R)
• M95: 57,855,331 km (0.098 R)
• M96: 59,979,471 km (0.086 R)
• M97: 60,351,371 km (0.101 R)
• M98: 60,724,169 km (0.115 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 367 - 12,842 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit