🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 5

Radius: 1.9

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.67 AU - 1.11 AU

Year: 320 Days

Day: 29 Hours

Environment

Temp: 18 °C

Axial Tilt: 36.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 86,535,058 km

• M1: 888,911 km (0.112 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.17

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.88 AU - 1.14 AU

Year: 387 Days

Day: 47.5 Hours

Environment

Temp: 0 °C

Axial Tilt: 32.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.59

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.85 AU - 1.23 AU

Year: 404 Days

Day: 17.2 Hours

Environment

Temp: 17 °C

Axial Tilt: 26.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.47

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.96 AU - 1.46 AU

Year: 507 Days

Day: 34.5 Hours

Environment

Temp: -33 °C

Axial Tilt: 15.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.48 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 787.4

Radius: 10.3

Gravity: 7.42 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 5.33 AU - 6.15 AU

Year: 5237 Days

Day: 5.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (84)

Outer Limit: 86,535,058 km

• M1: 143,165 km (0.105 R)
• M2: 288,574 km (0.072 R)
• M3: 428,000 km (0.119 R)
• M4: 641,924 km (0.03 R)
• M5: 717,023 km (0.061 R)
• M6: 822,339 km (0.114 R)
• M7: 1,034,768 km (0.071 R)
• M8: 1,217,876 km (0.088 R)
• M9: 1,378,844 km (0.113 R)
• M10: 1,616,106 km (0.089 R)
• M11: 1,922,183 km (0.033 R)
• M12: 2,188,168 km (0.071 R)
• M13: 2,286,155 km (0.111 R)
• M14: 2,819,172 km (0.098 R)
• M15: 2,926,134 km (0.073 R)
• M16: 3,100,117 km (0.096 R)
• M17: 3,572,996 km (0.07 R)
• M18: 3,688,934 km (0.105 R)
• M19: 3,877,128 km (0.036 R)
• M20: 4,068,613 km (0.087 R)
• M21: 4,611,055 km (0.066 R)
• M22: 4,788,478 km (0.092 R)
• M23: 5,020,056 km (0.098 R)
• M24: 5,360,989 km (0.049 R)
• M25: 5,467,353 km (0.103 R)
• M26: 5,574,465 km (0.116 R)
• M27: 5,763,707 km (0.106 R)
• M28: 6,316,022 km (0.052 R)
• M29: 6,541,765 km (0.116 R)
• M30: 7,264,024 km (0.095 R)
• M31: 7,441,297 km (0.082 R)
• M32: 7,679,756 km (0.107 R)
• M33: 8,011,714 km (0.063 R)
• M34: 8,658,725 km (0.068 R)
• M35: 8,846,620 km (0.109 R)
• M36: 8,941,016 km (0.054 R)
• M37: 9,067,576 km (0.094 R)
• M38: 9,226,598 km (0.068 R)
• M39: 10,002,413 km (0.079 R)
• M40: 10,232,794 km (0.112 R)
• M41: 10,564,751 km (0.11 R)
• M42: 10,665,131 km (0.078 R)
• M43: 11,205,329 km (0.112 R)
• M44: 11,858,474 km (0.082 R)
• M45: 12,312,653 km (0.086 R)
• M46: 13,129,906 km (0.107 R)
• M47: 13,345,925 km (0.097 R)
• M48: 13,781,704 km (0.045 R)
• M49: 14,037,965 km (0.073 R)
• M50: 14,148,368 km (0.049 R)
• M51: 14,259,071 km (0.08 R)
• M52: 14,555,424 km (0.068 R)
• M53: 14,741,823 km (0.043 R)
• M54: 15,079,166 km (0.067 R)
• M55: 15,381,204 km (0.099 R)
• M56: 15,571,044 km (0.106 R)
• M57: 15,799,779 km (0.087 R)
• M58: 16,492,866 km (0.064 R)
• M59: 16,726,089 km (0.07 R)
• M60: 17,908,511 km (0.09 R)
• M61: 18,429,261 km (0.067 R)
• M62: 18,550,136 km (0.085 R)
• M63: 19,691,119 km (0.061 R)
• M64: 20,770,916 km (0.106 R)
• M65: 20,896,728 km (0.1 R)
• M66: 22,684,872 km (0.094 R)
• M67: 23,117,808 km (0.118 R)
• M68: 23,204,724 km (0.067 R)
• M69: 23,684,634 km (0.077 R)
• M70: 23,991,908 km (0.04 R)
• M71: 24,256,248 km (0.105 R)
• M72: 24,565,766 km (0.045 R)
• M73: 24,787,769 km (0.085 R)
• M74: 25,682,214 km (0.088 R)
• M75: 26,815,269 km (0.113 R)
• M76: 27,227,112 km (0.118 R)
• M77: 28,335,632 km (0.068 R)
• M78: 29,411,689 km (0.113 R)
• M79: 29,789,125 km (0.088 R)
• M80: 30,692,098 km (0.078 R)
• M81: 30,883,284 km (0.094 R)
• M82: 31,218,832 km (0.1 R)
• M83: 31,748,707 km (0.076 R)
• M84: 32,427,283 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 943.1

Radius: 13.4

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 9.36 AU - 9.84 AU

Year: 11327 Days

Day: 11 Hours

Environment

Temp: -190 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (88)

Outer Limit: 86,535,058 km

• M1: 330,013 km (0.036 R)
• M2: 646,263 km (0.071 R)
• M3: 994,676 km (0.073 R)
• M4: 1,124,078 km (0.084 R)
• M5: 1,236,726 km (0.113 R)
• M6: 1,353,262 km (0.057 R)
• M7: 1,700,629 km (0.081 R)
• M8: 2,274,486 km (0.071 R)
• M9: 2,689,321 km (0.083 R)
• M10: 2,843,556 km (0.105 R)
• M11: 3,692,225 km (0.102 R)
• M12: 3,933,826 km (0.099 R)
• M13: 4,180,512 km (0.116 R)
• M14: 5,334,211 km (0.119 R)
• M15: 7,650,136 km (0.064 R)
• M16: 8,272,313 km (0.082 R)
• M17: 8,772,569 km (0.117 R)
• M18: 9,470,892 km (0.118 R)
• M19: 9,612,561 km (0.079 R)
• M20: 11,218,793 km (0.091 R)
• M21: 11,823,468 km (0.07 R)
• M22: 12,027,370 km (0.096 R)
• M23: 12,181,007 km (0.112 R)
• M24: 12,490,375 km (0.054 R)
• M25: 13,116,891 km (0.074 R)
• M26: 13,381,081 km (0.038 R)
• M27: 14,673,158 km (0.112 R)
• M28: 15,168,027 km (0.112 R)
• M29: 15,668,432 km (0.066 R)
• M30: 17,607,221 km (0.111 R)
• M31: 17,781,801 km (0.1 R)
• M32: 17,957,130 km (0.053 R)
• M33: 18,250,491 km (0.101 R)
• M34: 18,368,375 km (0.074 R)
• M35: 18,604,739 km (0.097 R)
• M36: 18,782,611 km (0.11 R)
• M37: 19,140,300 km (0.112 R)
• M38: 19,862,259 km (0.09 R)
• M39: 20,348,602 km (0.064 R)
• M40: 22,648,519 km (0.111 R)
• M41: 23,348,039 km (0.119 R)
• M42: 23,732,505 km (0.091 R)
• M43: 23,861,160 km (0.057 R)
• M44: 24,572,946 km (0.059 R)
• M45: 25,423,261 km (0.107 R)
• M46: 25,686,702 km (0.117 R)
• M47: 25,885,069 km (0.093 R)
• M48: 26,017,463 km (0.077 R)
• M49: 26,883,934 km (0.108 R)
• M50: 29,470,631 km (0.075 R)
• M51: 29,608,859 km (0.083 R)
• M52: 30,653,352 km (0.12 R)
• M53: 31,709,812 km (0.088 R)
• M54: 33,352,845 km (0.113 R)
• M55: 33,569,164 km (0.065 R)
• M56: 33,858,336 km (0.106 R)
• M57: 34,512,079 km (0.102 R)
• M58: 34,803,945 km (0.086 R)
• M59: 35,684,627 km (0.109 R)
• M60: 35,832,131 km (0.064 R)
• M61: 36,275,688 km (0.111 R)
• M62: 36,944,690 km (0.043 R)
• M63: 37,617,581 km (0.083 R)
• M64: 37,767,778 km (0.118 R)
• M65: 37,993,222 km (0.104 R)
• M66: 38,294,661 km (0.102 R)
• M67: 39,584,494 km (0.086 R)
• M68: 39,737,234 km (0.084 R)
• M69: 41,429,634 km (0.099 R)
• M70: 42,518,856 km (0.083 R)
• M71: 44,805,011 km (0.112 R)
• M72: 45,922,956 km (0.071 R)
• M73: 46,083,474 km (0.108 R)
• M74: 46,404,960 km (0.104 R)
• M75: 46,969,243 km (0.103 R)
• M76: 48,757,836 km (0.106 R)
• M77: 49,003,326 km (0.055 R)
• M78: 49,907,495 km (0.096 R)
• M79: 50,983,104 km (0.12 R)
• M80: 51,648,814 km (0.105 R)
• M81: 51,982,717 km (0.048 R)
• M82: 54,086,063 km (0.07 R)
• M83: 54,255,557 km (0.08 R)
• M84: 54,340,379 km (0.085 R)
• M85: 54,765,088 km (0.093 R)
• M86: 54,850,059 km (0.107 R)
• M87: 56,904,936 km (0.091 R)
• M88: 57,077,272 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 164.2

Radius: 4.1

Gravity: 9.77 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 10.68 AU - 16.98 AU

Year: 19585 Days

Day: 15.6 Hours

Environment

Temp: -204 °C

Axial Tilt: 110 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (56)

Outer Limit: 86,535,058 km

• M1: 78,240 km (0.06 R)
• M2: 202,855 km (0.113 R)
• M3: 235,018 km (0.107 R)
• M4: 382,372 km (0.087 R)
• M5: 480,658 km (0.083 R)
• M6: 651,499 km (0.05 R)
• M7: 1,084,884 km (0.099 R)
• M8: 1,457,532 km (0.107 R)
• M9: 1,545,496 km (0.11 R)
• M10: 1,772,884 km (0.067 R)
• M11: 1,866,682 km (0.107 R)
• M12: 1,938,190 km (0.083 R)
• M13: 3,228,472 km (0.082 R)
• M14: 3,372,235 km (0.107 R)
• M15: 4,278,050 km (0.09 R)
• M16: 5,020,056 km (0.064 R)
• M17: 6,223,571 km (0.057 R)
• M18: 6,294,929 km (0.034 R)
• M19: 6,474,446 km (0.116 R)
• M20: 6,692,261 km (0.12 R)
• M21: 9,567,981 km (0.111 R)
• M22: 10,191,654 km (0.082 R)
• M23: 10,871,427 km (0.104 R)
• M24: 10,914,361 km (0.074 R)
• M25: 11,216,699 km (0.04 R)
• M26: 12,318,786 km (0.101 R)
• M27: 12,633,540 km (0.046 R)
• M28: 12,950,987 km (0.099 R)
• M29: 13,316,903 km (0.097 R)
• M30: 14,861,950 km (0.094 R)
• M31: 15,631,332 km (0.075 R)
• M32: 16,660,565 km (0.093 R)
• M33: 17,409,003 km (0.094 R)
• M34: 19,353,626 km (0.083 R)
• M35: 20,776,601 km (0.099 R)
• M36: 22,780,614 km (0.047 R)
• M37: 23,166,726 km (0.059 R)
• M38: 23,610,434 km (0.035 R)
• M39: 24,001,183 km (0.085 R)
• M40: 27,085,592 km (0.095 R)
• M41: 27,611,578 km (0.091 R)
• M42: 28,259,187 km (0.113 R)
• M43: 28,792,653 km (0.117 R)
• M44: 29,209,882 km (0.094 R)
• M45: 30,534,272 km (0.106 R)
• M46: 31,203,872 km (0.111 R)
• M47: 32,248,065 km (0.099 R)
• M48: 32,619,217 km (0.075 R)
• M49: 33,929,844 km (0.096 R)
• M50: 36,280,326 km (0.025 R)
• M51: 39,209,153 km (0.043 R)
• M52: 39,473,044 km (0.115 R)
• M53: 39,936,498 km (0.085 R)
• M54: 41,404,651 km (0.101 R)
• M55: 45,358,822 km (0.115 R)
• M56: 46,470,634 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 238.3

Radius: 4.6

Gravity: 11.26 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 13.42 AU - 14.54 AU

Year: 19905 Days

Day: 16.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (72)

Outer Limit: 86,535,058 km

• M1: 267,780 km (0.099 R)
• M2: 617,540 km (0.099 R)
• M3: 1,472,043 km (0.119 R)
• M4: 2,554,832 km (0.085 R)
• M5: 2,583,705 km (0.086 R)
• M6: 3,277,540 km (0.088 R)
• M7: 3,372,086 km (0.066 R)
• M8: 4,025,230 km (0.083 R)
• M9: 4,540,146 km (0.072 R)
• M10: 4,575,301 km (0.079 R)
• M11: 4,751,976 km (0.049 R)
• M12: 4,859,088 km (0.097 R)
• M13: 5,112,058 km (0.081 R)
• M14: 5,332,416 km (0.111 R)
• M15: 5,706,411 km (0.067 R)
• M16: 7,244,277 km (0.1 R)
• M17: 7,450,124 km (0.045 R)
• M18: 7,741,690 km (0.097 R)
• M19: 7,994,510 km (0.094 R)
• M20: 8,725,595 km (0.103 R)
• M21: 9,209,993 km (0.118 R)
• M22: 9,433,043 km (0.108 R)
• M23: 9,522,802 km (0.118 R)
• M24: 9,612,860 km (0.117 R)
• M25: 9,657,889 km (0.085 R)
• M26: 9,975,635 km (0.105 R)
• M27: 11,138,160 km (0.112 R)
• M28: 11,233,005 km (0.087 R)
• M29: 11,615,078 km (0.119 R)
• M30: 12,001,340 km (0.081 R)
• M31: 12,836,245 km (0.087 R)
• M32: 12,985,544 km (0.056 R)
• M33: 14,046,342 km (0.108 R)
• M34: 15,345,151 km (0.085 R)
• M35: 15,609,491 km (0.111 R)
• M36: 17,833,263 km (0.093 R)
• M37: 18,671,161 km (0.102 R)
• M38: 19,180,093 km (0.119 R)
• M39: 21,202,207 km (0.103 R)
• M40: 21,378,583 km (0.04 R)
• M41: 21,792,221 km (0.065 R)
• M42: 23,169,868 km (0.109 R)
• M43: 25,257,207 km (0.055 R)
• M44: 27,020,816 km (0.07 R)
• M45: 27,596,020 km (0.051 R)
• M46: 28,434,067 km (0.077 R)
• M47: 29,345,866 km (0.066 R)
• M48: 30,201,267 km (0.057 R)
• M49: 30,598,748 km (0.097 R)
• M50: 32,273,497 km (0.072 R)
• M51: 34,667,811 km (0.114 R)
• M52: 34,945,015 km (0.06 R)
• M53: 35,362,244 km (0.096 R)
• M54: 35,851,130 km (0.063 R)
• M55: 36,271,949 km (0.106 R)
• M56: 36,483,031 km (0.116 R)
• M57: 37,473,219 km (0.099 R)
• M58: 38,543,891 km (0.108 R)
• M59: 39,335,414 km (0.117 R)
• M60: 41,300,980 km (0.088 R)
• M61: 43,671,508 km (0.102 R)
• M62: 43,746,307 km (0.11 R)
• M63: 45,402,355 km (0.114 R)
• M64: 45,553,898 km (0.115 R)
• M65: 46,161,864 km (0.086 R)
• M66: 47,616,553 km (0.101 R)
• M67: 47,693,596 km (0.098 R)
• M68: 47,924,725 km (0.094 R)
• M69: 48,775,638 km (0.091 R)
• M70: 50,256,956 km (0.101 R)
• M71: 51,515,822 km (0.102 R)
• M72: 52,864,746 km (0.09 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 678.6

Radius: 5.9

Gravity: 19.49 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 13.78 AU - 18.22 AU

Year: 24371 Days

Day: 15.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (98)

Outer Limit: 86,535,058 km

• M1: 299,794 km (0.118 R)
• M2: 394,789 km (0.088 R)
• M3: 522,695 km (0.116 R)
• M4: 765,044 km (0.103 R)
• M5: 1,158,336 km (0.089 R)
• M6: 1,640,490 km (0.049 R)
• M7: 1,813,874 km (0.062 R)
• M8: 1,884,933 km (0.114 R)
• M9: 2,565,155 km (0.112 R)
• M10: 3,314,191 km (0.104 R)
• M11: 4,314,552 km (0.079 R)
• M12: 4,362,124 km (0.109 R)
• M13: 4,602,528 km (0.08 R)
• M14: 6,294,779 km (0.054 R)
• M15: 6,457,392 km (0.104 R)
• M16: 6,897,509 km (0.119 R)
• M17: 7,121,307 km (0.111 R)
• M18: 7,981,346 km (0.105 R)
• M19: 8,098,481 km (0.109 R)
• M20: 8,216,214 km (0.026 R)
• M21: 9,424,516 km (0.099 R)
• M22: 9,860,295 km (0.118 R)
• M23: 11,011,002 km (0.079 R)
• M24: 11,602,212 km (0.044 R)
• M25: 11,935,068 km (0.119 R)
• M26: 12,610,203 km (0.032 R)
• M27: 13,786,192 km (0.118 R)
• M28: 14,637,104 km (0.06 R)
• M29: 15,797,984 km (0.026 R)
• M30: 17,899,684 km (0.096 R)
• M31: 18,207,108 km (0.089 R)
• M32: 19,375,019 km (0.077 R)
• M33: 19,928,381 km (0.114 R)
• M34: 20,889,099 km (0.104 R)
• M35: 22,358,000 km (0.043 R)
• M36: 24,708,482 km (0.084 R)
• M37: 25,653,192 km (0.089 R)
• M38: 25,739,660 km (0.073 R)
• M39: 25,826,277 km (0.11 R)
• M40: 26,173,494 km (0.117 R)
• M41: 26,697,236 km (0.106 R)
• M42: 26,872,565 km (0.107 R)
• M43: 26,960,379 km (0.113 R)
• M44: 27,755,043 km (0.118 R)
• M45: 28,199,797 km (0.099 R)
• M46: 30,002,451 km (0.115 R)
• M47: 32,494,602 km (0.056 R)
• M48: 33,434,227 km (0.117 R)
• M49: 33,623,318 km (0.102 R)
• M50: 33,717,864 km (0.075 R)
• M51: 34,860,493 km (0.12 R)
• M52: 35,148,169 km (0.071 R)
• M53: 36,500,833 km (0.092 R)
• M54: 36,695,460 km (0.034 R)
• M55: 37,379,272 km (0.082 R)
• M56: 37,477,408 km (0.12 R)
• M57: 37,968,837 km (0.054 R)
• M58: 38,462,510 km (0.055 R)
• M59: 38,660,578 km (0.043 R)
• M60: 39,356,357 km (0.096 R)
• M61: 41,265,974 km (0.101 R)
• M62: 42,180,915 km (0.072 R)
• M63: 42,999,814 km (0.073 R)
• M64: 43,102,587 km (0.104 R)
• M65: 43,205,361 km (0.074 R)
• M66: 43,411,208 km (0.12 R)
• M67: 43,823,948 km (0.103 R)
• M68: 44,030,842 km (0.112 R)
• M69: 45,487,925 km (0.067 R)
• M70: 45,802,230 km (0.039 R)
• M71: 46,117,284 km (0.034 R)
• M72: 48,984,476 km (0.069 R)
• M73: 49,521,832 km (0.1 R)
• M74: 49,845,113 km (0.089 R)
• M75: 52,237,332 km (0.104 R)
• M76: 53,226,773 km (0.088 R)
• M77: 55,783,251 km (0.118 R)
• M78: 56,231,895 km (0.112 R)
• M79: 56,907,180 km (0.12 R)
• M80: 57,245,720 km (0.118 R)
• M81: 57,585,008 km (0.115 R)
• M82: 57,925,044 km (0.095 R)
• M83: 58,720,904 km (0.115 R)
• M84: 59,063,035 km (0.072 R)
• M85: 62,870,600 km (0.105 R)
• M86: 66,637,923 km (0.052 R)
• M87: 66,994,714 km (0.043 R)
• M88: 68,548,736 km (0.113 R)
• M89: 70,598,676 km (0.044 R)
• M90: 74,758,544 km (0.103 R)
• M91: 75,500,849 km (0.107 R)
• M92: 75,872,898 km (0.066 R)
• M93: 76,370,012 km (0.108 R)
• M94: 77,867,636 km (0.097 R)
• M95: 79,753,318 km (0.101 R)
• M96: 80,132,249 km (0.082 R)
• M97: 82,163,190 km (0.107 R)
• M98: 82,290,647 km (0.087 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: 348 - 17,456 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit