🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 305

Radius: 10.5

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.96 AU - 0.98 AU

Year: 648 Days

Day: 9.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 62,146,413 km

• M1: 133,890 km (0.104 R)
• M2: 201,060 km (0.068 R)
• M3: 268,678 km (0.113 R)
• M4: 398,080 km (0.12 R)
• M5: 553,363 km (0.092 R)
• M6: 690,245 km (0.059 R)
• M7: 759,209 km (0.046 R)
• M8: 856,747 km (0.107 R)
• M9: 936,183 km (0.095 R)
• M10: 1,046,288 km (0.074 R)
• M11: 1,165,966 km (0.108 R)
• M12: 1,275,322 km (0.05 R)
• M13: 1,446,013 km (0.07 R)
• M14: 1,602,343 km (0.11 R)
• M15: 1,707,809 km (0.106 R)
• M16: 1,862,045 km (0.115 R)
• M17: 1,955,543 km (0.096 R)
• M18: 2,129,376 km (0.103 R)
• M19: 2,283,312 km (0.088 R)
• M20: 2,834,281 km (0.09 R)
• M21: 3,004,224 km (0.076 R)
• M22: 3,073,189 km (0.104 R)
• M23: 3,447,333 km (0.113 R)
• M24: 3,534,100 km (0.039 R)
• M25: 3,621,615 km (0.093 R)
• M26: 3,746,828 km (0.1 R)
• M27: 4,070,109 km (0.081 R)
• M28: 4,138,924 km (0.113 R)
• M29: 4,293,309 km (0.103 R)
• M30: 4,623,621 km (0.1 R)
• M31: 4,921,620 km (0.118 R)
• M32: 5,234,280 km (0.099 R)
• M33: 5,334,361 km (0.101 R)
• M34: 5,409,758 km (0.112 R)
• M35: 5,578,804 km (0.069 R)
• M36: 5,835,663 km (0.115 R)
• M37: 5,904,778 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.8

Radius: 10

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 1.31 AU - 1.91 AU

Year: 1386 Days

Day: 13.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (51)

Outer Limit: 62,146,413 km

• M1: 132,245 km (0.096 R)
• M2: 277,055 km (0.074 R)
• M3: 404,812 km (0.086 R)
• M4: 578,794 km (0.102 R)
• M5: 772,224 km (0.108 R)
• M6: 938,427 km (0.086 R)
• M7: 1,087,427 km (0.091 R)
• M8: 1,206,507 km (0.077 R)
• M9: 1,361,640 km (0.034 R)
• M10: 1,433,746 km (0.116 R)
• M11: 1,532,032 km (0.042 R)
• M12: 1,649,466 km (0.105 R)
• M13: 1,938,489 km (0.063 R)
• M14: 2,243,818 km (0.102 R)
• M15: 2,416,903 km (0.069 R)
• M16: 2,807,204 km (0.074 R)
• M17: 2,920,898 km (0.102 R)
• M18: 3,260,486 km (0.117 R)
• M19: 3,424,146 km (0.089 R)
• M20: 3,523,628 km (0.086 R)
• M21: 3,827,910 km (0.059 R)
• M22: 4,246,934 km (0.099 R)
• M23: 4,377,982 km (0.113 R)
• M24: 4,486,141 km (0.103 R)
• M25: 4,619,582 km (0.119 R)
• M26: 4,717,569 km (0.058 R)
• M27: 4,840,837 km (0.036 R)
• M28: 5,255,672 km (0.057 R)
• M29: 5,460,921 km (0.086 R)
• M30: 5,747,401 km (0.099 R)
• M31: 6,253,939 km (0.078 R)
• M32: 6,403,238 km (0.104 R)
• M33: 6,608,785 km (0.119 R)
• M34: 6,705,575 km (0.104 R)
• M35: 6,830,489 km (0.045 R)
• M36: 7,195,957 km (0.098 R)
• M37: 7,352,586 km (0.103 R)
• M38: 7,756,201 km (0.107 R)
• M39: 8,004,832 km (0.114 R)
• M40: 8,256,157 km (0.045 R)
• M41: 8,585,123 km (0.074 R)
• M42: 9,302,444 km (0.084 R)
• M43: 9,786,244 km (0.059 R)
• M44: 9,880,790 km (0.114 R)
• M45: 10,039,064 km (0.054 R)
• M46: 10,310,136 km (0.107 R)
• M47: 10,374,164 km (0.105 R)
• M48: 10,486,811 km (0.069 R)
• M49: 10,567,444 km (0.117 R)
• M50: 10,713,003 km (0.084 R)
• M51: 10,908,378 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950.6

Radius: 13.8

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 2.85 AU - 3.79 AU

Year: 4103 Days

Day: 6.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 62,146,413 km

• M1: 176,376 km (0.069 R)
• M2: 267,331 km (0.115 R)
• M3: 433,385 km (0.118 R)
• M4: 646,861 km (0.117 R)
• M5: 860,786 km (0.12 R)
• M6: 1,058,255 km (0.111 R)
• M7: 1,376,450 km (0.11 R)
• M8: 1,468,752 km (0.117 R)
• M9: 1,676,244 km (0.074 R)
• M10: 1,808,937 km (0.07 R)
• M11: 1,979,928 km (0.095 R)
• M12: 2,067,592 km (0.094 R)
• M13: 2,228,859 km (0.079 R)
• M14: 2,357,214 km (0.095 R)
• M15: 2,679,447 km (0.079 R)
• M16: 2,777,135 km (0.087 R)
• M17: 3,117,919 km (0.029 R)
• M18: 3,283,224 km (0.083 R)
• M19: 3,536,494 km (0.091 R)
• M20: 3,665,597 km (0.082 R)
• M21: 3,840,327 km (0.107 R)
• M22: 4,017,750 km (0.099 R)
• M23: 4,243,643 km (0.102 R)
• M24: 4,473,575 km (0.049 R)
• M25: 4,590,261 km (0.039 R)
• M26: 4,778,904 km (0.106 R)
• M27: 4,922,069 km (0.114 R)
• M28: 5,360,391 km (0.107 R)
• M29: 6,405,781 km (0.04 R)
• M30: 7,182,792 km (0.057 R)
• M31: 7,736,155 km (0.108 R)
• M32: 7,848,503 km (0.052 R)
• M33: 8,303,430 km (0.112 R)
• M34: 8,418,471 km (0.101 R)
• M35: 8,854,698 km (0.074 R)
• M36: 9,001,902 km (0.093 R)
• M37: 9,209,095 km (0.083 R)
• M38: 9,568,280 km (0.084 R)
• M39: 9,962,470 km (0.086 R)
• M40: 10,115,509 km (0.067 R)
• M41: 10,673,060 km (0.084 R)
• M42: 10,892,520 km (0.079 R)
• M43: 11,560,175 km (0.101 R)
• M44: 12,143,009 km (0.1 R)
• M45: 12,537,050 km (0.104 R)
• M46: 12,636,083 km (0.118 R)
• M47: 13,001,850 km (0.113 R)
• M48: 13,270,079 km (0.071 R)
• M49: 14,051,429 km (0.075 R)
• M50: 14,361,396 km (0.025 R)
• M51: 14,499,774 km (0.098 R)
• M52: 14,673,457 km (0.108 R)
• M53: 15,304,461 km (0.101 R)
• M54: 15,516,740 km (0.118 R)
• M55: 15,872,783 km (0.08 R)
• M56: 16,087,605 km (0.099 R)
• M57: 16,592,947 km (0.109 R)
• M58: 17,140,026 km (0.059 R)
• M59: 18,665,775 km (0.108 R)
• M60: 19,387,435 km (0.102 R)
• M61: 19,617,367 km (0.099 R)
• M62: 19,771,004 km (0.095 R)
• M63: 20,157,116 km (0.107 R)
• M64: 21,054,554 km (0.059 R)
• M65: 21,965,007 km (0.106 R)
• M66: 23,131,272 km (0.07 R)
• M67: 23,456,497 km (0.116 R)
• M68: 23,906,189 km (0.118 R)
• M69: 24,029,457 km (0.117 R)
• M70: 24,689,782 km (0.04 R)
• M71: 24,814,248 km (0.081 R)
• M72: 25,439,866 km (0.08 R)
• M73: 26,155,243 km (0.032 R)
• M74: 26,282,102 km (0.083 R)
• M75: 26,834,417 km (0.071 R)
• M76: 27,133,463 km (0.049 R)
• M77: 27,261,968 km (0.099 R)
• M78: 27,648,678 km (0.052 R)
• M79: 28,645,150 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.5

Radius: 10.2

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 3.88 AU - 5.32 AU

Year: 6692 Days

Day: 10.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 62,146,413 km

• M1: 129,402 km (0.038 R)
• M2: 238,908 km (0.088 R)
• M3: 406,457 km (0.117 R)
• M4: 492,476 km (0.115 R)
• M5: 663,018 km (0.067 R)
• M6: 744,249 km (0.081 R)
• M7: 879,336 km (0.11 R)
• M8: 996,322 km (0.096 R)
• M9: 1,394,402 km (0.079 R)
• M10: 1,691,653 km (0.104 R)
• M11: 1,839,605 km (0.071 R)
• M12: 1,923,679 km (0.095 R)
• M13: 2,061,010 km (0.032 R)
• M14: 2,237,386 km (0.093 R)
• M15: 2,418,698 km (0.096 R)
• M16: 2,604,948 km (0.077 R)
• M17: 2,795,984 km (0.043 R)
• M18: 2,972,061 km (0.09 R)
• M19: 3,131,532 km (0.064 R)
• M20: 4,169,592 km (0.069 R)
• M21: 4,371,100 km (0.079 R)
• M22: 4,530,123 km (0.118 R)
• M23: 4,760,653 km (0.118 R)
• M24: 5,185,212 km (0.093 R)
• M25: 5,770,439 km (0.055 R)
• M26: 6,248,703 km (0.12 R)
• M27: 7,216,302 km (0.102 R)
• M28: 7,594,635 km (0.069 R)
• M29: 8,034,902 km (0.106 R)
• M30: 8,258,102 km (0.094 R)
• M31: 8,682,361 km (0.084 R)
• M32: 8,911,545 km (0.119 R)
• M33: 9,258,911 km (0.1 R)
• M34: 9,375,747 km (0.102 R)
• M35: 10,388,525 km (0.071 R)
• M36: 10,693,106 km (0.087 R)
• M37: 10,907,929 km (0.096 R)
• M38: 11,404,594 km (0.07 R)
• M39: 11,561,223 km (0.114 R)
• M40: 11,687,184 km (0.09 R)
• M41: 12,355,587 km (0.102 R)
• M42: 12,419,765 km (0.05 R)
• M43: 13,962,867 km (0.087 R)
• M44: 14,063,397 km (0.069 R)
• M45: 14,468,059 km (0.099 R)
• M46: 15,013,493 km (0.078 R)
• M47: 15,635,221 km (0.08 R)
• M48: 16,300,483 km (0.072 R)
• M49: 16,371,093 km (0.109 R)
• M50: 16,654,432 km (0.118 R)
• M51: 17,082,431 km (0.071 R)
• M52: 18,131,860 km (0.081 R)
• M53: 18,461,724 km (0.116 R)
• M54: 18,608,928 km (0.044 R)
• M55: 18,867,583 km (0.088 R)
• M56: 19,239,184 km (0.119 R)
• M57: 19,313,833 km (0.033 R)
• M58: 19,575,779 km (0.115 R)
• M59: 19,763,524 km (0.051 R)
• M60: 20,520,639 km (0.07 R)
• M61: 20,941,159 km (0.094 R)
• M62: 21,790,575 km (0.11 R)
• M63: 22,337,056 km (0.086 R)
• M64: 22,730,200 km (0.073 R)
• M65: 23,006,806 km (0.072 R)
• M66: 23,324,103 km (0.096 R)
• M67: 23,643,046 km (0.11 R)
• M68: 24,083,761 km (0.098 R)
• M69: 24,164,245 km (0.108 R)
• M70: 24,365,753 km (0.075 R)
• M71: 24,567,710 km (0.107 R)
• M72: 24,810,956 km (0.083 R)
• M73: 25,791,720 km (0.089 R)
• M74: 25,915,138 km (0.097 R)
• M75: 26,204,161 km (0.059 R)
• M76: 26,701,874 km (0.111 R)
• M77: 26,868,526 km (0.051 R)
• M78: 27,119,102 km (0.113 R)
• M79: 27,412,314 km (0.087 R)
• M80: 27,538,425 km (0.115 R)
• M81: 28,002,178 km (0.059 R)
• M82: 28,341,017 km (0.088 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 656.5

Radius: 7.4

Gravity: 11.99 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 5.96 AU - 6.34 AU

Year: 10344 Days

Day: 19.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 71.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (90)

Outer Limit: 62,146,413 km

• M1: 93,499 km (0.098 R)
• M2: 171,888 km (0.102 R)
• M3: 342,729 km (0.117 R)
• M4: 407,953 km (0.059 R)
• M5: 697,425 km (0.1 R)
• M6: 748,588 km (0.083 R)
• M7: 1,204,263 km (0.106 R)
• M8: 1,572,124 km (0.094 R)
• M9: 2,485,120 km (0.088 R)
• M10: 2,979,391 km (0.054 R)
• M11: 3,325,561 km (0.1 R)
• M12: 3,807,116 km (0.067 R)
• M13: 3,899,867 km (0.077 R)
• M14: 4,278,499 km (0.06 R)
• M15: 4,374,840 km (0.119 R)
• M16: 4,668,650 km (0.046 R)
• M17: 4,734,922 km (0.06 R)
• M18: 4,801,344 km (0.081 R)
• M19: 4,901,724 km (0.077 R)
• M20: 5,206,754 km (0.118 R)
• M21: 5,800,059 km (0.084 R)
• M22: 6,050,486 km (0.098 R)
• M23: 6,268,001 km (0.067 R)
• M24: 7,163,793 km (0.081 R)
• M25: 7,509,963 km (0.086 R)
• M26: 7,940,356 km (0.101 R)
• M27: 8,580,934 km (0.092 R)
• M28: 8,743,696 km (0.071 R)
• M29: 10,556,523 km (0.07 R)
• M30: 10,730,954 km (0.077 R)
• M31: 10,862,301 km (0.086 R)
• M32: 11,393,374 km (0.059 R)
• M33: 11,932,973 km (0.075 R)
• M34: 12,434,874 km (0.034 R)
• M35: 12,572,953 km (0.046 R)
• M36: 12,850,607 km (0.074 R)
• M37: 12,897,132 km (0.07 R)
• M38: 12,990,182 km (0.111 R)
• M39: 13,177,179 km (0.057 R)
• M40: 13,981,567 km (0.109 R)
• M41: 14,029,288 km (0.081 R)
• M42: 14,125,181 km (0.044 R)
• M43: 15,193,160 km (0.09 R)
• M44: 15,390,031 km (0.069 R)
• M45: 16,186,340 km (0.042 R)
• M46: 16,286,870 km (0.096 R)
• M47: 16,843,224 km (0.042 R)
• M48: 17,047,126 km (0.113 R)
• M49: 17,818,902 km (0.1 R)
• M50: 18,026,693 km (0.096 R)
• M51: 18,130,813 km (0.082 R)
• M52: 18,183,023 km (0.109 R)
• M53: 19,024,361 km (0.116 R)
• M54: 19,396,411 km (0.062 R)
• M55: 19,556,630 km (0.064 R)
• M56: 20,635,829 km (0.094 R)
• M57: 21,623,624 km (0.11 R)
• M58: 21,900,679 km (0.047 R)
• M59: 22,067,481 km (0.115 R)
• M60: 23,133,964 km (0.103 R)
• M61: 25,843,032 km (0.108 R)
• M62: 26,314,116 km (0.103 R)
• M63: 26,373,207 km (0.084 R)
• M64: 27,026,052 km (0.055 R)
• M65: 27,204,971 km (0.052 R)
• M66: 27,624,144 km (0.11 R)
• M67: 28,529,361 km (0.116 R)
• M68: 29,260,596 km (0.082 R)
• M69: 30,121,531 km (0.081 R)
• M70: 30,307,033 km (0.112 R)
• M71: 31,177,991 km (0.117 R)
• M72: 31,616,612 km (0.114 R)
• M73: 32,120,308 km (0.062 R)
• M74: 32,436,409 km (0.1 R)
• M75: 33,711,431 km (0.117 R)
• M76: 34,872,909 km (0.066 R)
• M77: 35,654,409 km (0.084 R)
• M78: 36,376,069 km (0.103 R)
• M79: 36,969,972 km (0.099 R)
• M80: 37,234,910 km (0.074 R)
• M81: 38,502,154 km (0.101 R)
• M82: 38,636,492 km (0.082 R)
• M83: 39,174,895 km (0.095 R)
• M84: 40,531,897 km (0.102 R)
• M85: 41,353,339 km (0.065 R)
• M86: 44,412,466 km (0.045 R)
• M87: 46,754,122 km (0.118 R)
• M88: 46,897,436 km (0.065 R)
• M89: 47,112,409 km (0.109 R)
• M90: 47,976,037 km (0.108 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 336.5

Radius: 6

Gravity: 9.35 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 9.8 AU - 9.96 AU

Year: 21063 Days

Day: 22.7 Hours

Environment

Temp: -231 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 62,146,413 km

• M1: 127,607 km (0.051 R)
• M2: 200,312 km (0.106 R)
• M3: 647,460 km (0.056 R)
• M4: 1,375,104 km (0.08 R)
• M5: 1,835,117 km (0.103 R)
• M6: 1,949,859 km (0.1 R)
• M7: 2,401,195 km (0.105 R)
• M8: 2,719,689 km (0.084 R)
• M9: 3,291,303 km (0.116 R)
• M10: 4,425,404 km (0.104 R)
• M11: 5,378,492 km (0.05 R)
• M12: 5,419,632 km (0.057 R)
• M13: 5,502,060 km (0.082 R)
• M14: 6,305,849 km (0.062 R)
• M15: 7,880,217 km (0.08 R)
• M16: 8,114,637 km (0.042 R)
• M17: 8,351,301 km (0.108 R)
• M18: 8,398,873 km (0.117 R)
• M19: 8,446,595 km (0.113 R)
• M20: 8,590,209 km (0.106 R)
• M21: 8,734,720 km (0.112 R)
• M22: 9,026,137 km (0.09 R)
• M23: 9,271,328 km (0.084 R)
• M24: 9,419,430 km (0.063 R)
• M25: 10,070,779 km (0.109 R)
• M26: 10,478,732 km (0.082 R)
• M27: 11,048,551 km (0.109 R)
• M28: 11,416,262 km (0.09 R)
• M29: 12,056,242 km (0.055 R)
• M30: 12,707,741 km (0.112 R)
• M31: 13,092,955 km (0.055 R)
• M32: 13,203,807 km (0.096 R)
• M33: 14,044,697 km (0.052 R)
• M34: 14,442,926 km (0.107 R)
• M35: 14,787,301 km (0.112 R)
• M36: 15,367,292 km (0.101 R)
• M37: 15,484,128 km (0.065 R)
• M38: 16,013,854 km (0.105 R)
• M39: 16,310,656 km (0.074 R)
• M40: 16,969,934 km (0.116 R)
• M41: 17,272,570 km (0.107 R)
• M42: 18,129,317 km (0.109 R)
• M43: 18,376,602 km (0.069 R)
• M44: 19,062,509 km (0.089 R)
• M45: 19,314,132 km (0.066 R)
• M46: 19,629,933 km (0.116 R)
• M47: 19,883,951 km (0.099 R)
• M48: 19,947,530 km (0.116 R)
• M49: 21,430,493 km (0.102 R)
• M50: 22,416,493 km (0.069 R)
• M51: 22,482,765 km (0.094 R)
• M52: 25,600,534 km (0.12 R)
• M53: 27,209,459 km (0.058 R)
• M54: 27,776,734 km (0.119 R)
• M55: 27,847,943 km (0.115 R)
• M56: 28,491,363 km (0.116 R)
• M57: 29,720,011 km (0.106 R)
• M58: 30,450,647 km (0.082 R)
• M59: 33,356,735 km (0.05 R)
• M60: 33,735,666 km (0.097 R)
• M61: 34,727,500 km (0.08 R)
• M62: 34,880,838 km (0.118 R)
• M63: 35,574,224 km (0.085 R)
• M64: 36,194,307 km (0.083 R)
• M65: 37,523,784 km (0.097 R)
• M66: 38,869,117 km (0.08 R)
• M67: 39,108,175 km (0.081 R)
• M68: 39,828,339 km (0.064 R)
• M69: 39,989,007 km (0.067 R)
• M70: 40,391,425 km (0.073 R)
• M71: 42,999,066 km (0.11 R)
• M72: 45,157,464 km (0.107 R)
• M73: 45,241,238 km (0.078 R)
• M74: 46,081,231 km (0.111 R)
• M75: 46,249,827 km (0.067 R)
• M76: 46,672,292 km (0.08 R)
• M77: 47,096,102 km (0.103 R)
• M78: 48,203,725 km (0.105 R)
• M79: 49,751,614 km (0.112 R)
• M80: 50,011,167 km (0.112 R)
• M81: 50,357,934 km (0.108 R)
• M82: 51,665,420 km (0.091 R)
• M83: 52,455,297 km (0.03 R)
• M84: 52,543,410 km (0.095 R)
• M85: 52,631,373 km (0.085 R)
• M86: 53,958,157 km (0.04 R)
• M87: 54,224,890 km (0.12 R)
• M88: 54,581,082 km (0.104 R)
• M89: 56,013,931 km (0.11 R)
• M90: 56,825,200 km (0.119 R)
• M91: 57,096,571 km (0.115 R)
• M92: 57,913,076 km (0.092 R)
• M93: 60,201,474 km (0.114 R)
• M94: 61,032,490 km (0.095 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 169 - 10,911 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit