🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.87

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.52 AU - 0.7 AU

Year: 171 Days

Day: 28.3 Hours

Environment

Temp: 219 °C

Axial Tilt: 34.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.53

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.64 AU - 0.68 AU

Year: 193 Days

Day: 14.4 Hours

Environment

Temp: 189 °C

Axial Tilt: 86.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.59

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.81 AU - 1.21 AU

Year: 365 Days

Day: 27.8 Hours

Environment

Temp: 49 °C

Axial Tilt: 31 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 62,252,172 km

• M1: 84,972 km (0.086 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.23

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 2.4 AU - 3.3 AU

Year: 1732 Days

Day: 38.6 Hours

Environment

Temp: -84 °C

Axial Tilt: 37.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 62,252,172 km

• M1: 107,262 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.1

Radius: 13.8

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 5.1 AU - 5.14 AU

Year: 4169 Days

Day: 6 Hours

Environment

Temp: -147 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 62,252,172 km

• M1: 181,163 km (0.09 R)
• M2: 303,983 km (0.103 R)
• M3: 402,418 km (0.089 R)
• M4: 526,884 km (0.099 R)
• M5: 616,044 km (0.118 R)
• M6: 836,102 km (0.118 R)
• M7: 1,163,273 km (0.091 R)
• M8: 1,428,360 km (0.113 R)
• M9: 1,855,612 km (0.103 R)
• M10: 2,034,531 km (0.109 R)
• M11: 2,322,507 km (0.057 R)
• M12: 2,516,087 km (0.08 R)
• M13: 2,995,249 km (0.11 R)
• M14: 3,129,288 km (0.108 R)
• M15: 3,226,228 km (0.099 R)
• M16: 3,443,145 km (0.038 R)
• M17: 3,705,988 km (0.085 R)
• M18: 3,870,995 km (0.112 R)
• M19: 4,017,301 km (0.096 R)
• M20: 4,123,067 km (0.119 R)
• M21: 4,272,814 km (0.118 R)
• M22: 4,934,635 km (0.047 R)
• M23: 5,324,188 km (0.096 R)
• M24: 5,747,550 km (0.114 R)
• M25: 6,084,445 km (0.111 R)
• M26: 6,677,151 km (0.12 R)
• M27: 7,031,399 km (0.037 R)
• M28: 7,236,797 km (0.113 R)
• M29: 8,158,170 km (0.119 R)
• M30: 8,838,990 km (0.081 R)
• M31: 8,977,368 km (0.051 R)
• M32: 9,256,368 km (0.073 R)
• M33: 9,765,599 km (0.093 R)
• M34: 10,576,121 km (0.097 R)
• M35: 10,900,598 km (0.113 R)
• M36: 11,228,218 km (0.106 R)
• M37: 11,348,195 km (0.044 R)
• M38: 11,438,403 km (0.085 R)
• M39: 11,649,934 km (0.064 R)
• M40: 12,015,551 km (0.068 R)
• M41: 12,230,673 km (0.036 R)
• M42: 12,695,773 km (0.119 R)
• M43: 13,166,857 km (0.114 R)
• M44: 13,356,846 km (0.119 R)
• M45: 13,484,004 km (0.092 R)
• M46: 13,868,022 km (0.075 R)
• M47: 14,093,765 km (0.1 R)
• M48: 14,223,167 km (0.097 R)
• M49: 14,548,692 km (0.055 R)
• M50: 16,964,399 km (0.096 R)
• M51: 17,448,497 km (0.091 R)
• M52: 17,657,336 km (0.108 R)
• M53: 17,831,917 km (0.112 R)
• M54: 18,007,245 km (0.116 R)
• M55: 18,892,117 km (0.106 R)
• M56: 19,142,394 km (0.091 R)
• M57: 19,610,336 km (0.106 R)
• M58: 19,718,795 km (0.054 R)
• M59: 19,827,403 km (0.12 R)
• M60: 20,337,382 km (0.042 R)
• M61: 20,483,838 km (0.045 R)
• M62: 22,043,097 km (0.077 R)
• M63: 22,685,021 km (0.074 R)
• M64: 22,989,303 km (0.119 R)
• M65: 23,180,040 km (0.086 R)
• M66: 23,601,757 km (0.079 R)
• M67: 23,987,271 km (0.117 R)
• M68: 25,077,989 km (0.085 R)
• M69: 25,313,904 km (0.063 R)
• M70: 25,906,611 km (0.059 R)
• M71: 26,864,636 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 346.7

Radius: 14.3

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 5.14 AU - 6.68 AU

Year: 5171 Days

Day: 8.6 Hours

Environment

Temp: -137 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (68)

Outer Limit: 62,252,172 km

• M1: 205,996 km (0.115 R)
• M2: 395,686 km (0.104 R)
• M3: 519,105 km (0.062 R)
• M4: 630,256 km (0.031 R)
• M5: 720,314 km (0.098 R)
• M6: 859,589 km (0.051 R)
• M7: 1,118,244 km (0.045 R)
• M8: 1,309,729 km (0.103 R)
• M9: 1,403,228 km (0.102 R)
• M10: 2,043,507 km (0.079 R)
• M11: 2,379,354 km (0.109 R)
• M12: 2,495,442 km (0.107 R)
• M13: 2,596,421 km (0.044 R)
• M14: 3,068,252 km (0.102 R)
• M15: 3,855,885 km (0.11 R)
• M16: 4,072,353 km (0.077 R)
• M17: 4,313,355 km (0.061 R)
• M18: 4,621,078 km (0.061 R)
• M19: 4,767,235 km (0.07 R)
• M20: 5,345,431 km (0.041 R)
• M21: 5,676,342 km (0.072 R)
• M22: 5,900,738 km (0.118 R)
• M23: 6,428,071 km (0.113 R)
• M24: 6,638,555 km (0.082 R)
• M25: 6,946,876 km (0.101 R)
• M26: 7,042,619 km (0.064 R)
• M27: 8,024,729 km (0.056 R)
• M28: 8,480,853 km (0.088 R)
• M29: 8,789,623 km (0.078 R)
• M30: 8,919,324 km (0.034 R)
• M31: 9,154,492 km (0.065 R)
• M32: 9,818,707 km (0.043 R)
• M33: 10,061,504 km (0.09 R)
• M34: 10,388,525 km (0.106 R)
• M35: 10,746,812 km (0.071 R)
• M36: 10,857,963 km (0.109 R)
• M37: 11,137,262 km (0.06 R)
• M38: 12,191,478 km (0.107 R)
• M39: 12,715,819 km (0.112 R)
• M40: 13,010,377 km (0.074 R)
• M41: 13,247,639 km (0.079 R)
• M42: 13,877,297 km (0.087 R)
• M43: 14,241,568 km (0.096 R)
• M44: 14,578,163 km (0.098 R)
• M45: 15,509,709 km (0.061 R)
• M46: 15,666,936 km (0.094 R)
• M47: 15,982,737 km (0.12 R)
• M48: 16,237,054 km (0.056 R)
• M49: 16,846,216 km (0.073 R)
• M50: 16,975,319 km (0.065 R)
• M51: 17,790,478 km (0.042 R)
• M52: 18,518,272 km (0.04 R)
• M53: 19,391,026 km (0.113 R)
• M54: 19,662,247 km (0.078 R)
• M55: 20,277,243 km (0.116 R)
• M56: 20,759,846 km (0.079 R)
• M57: 20,898,374 km (0.119 R)
• M58: 21,002,643 km (0.117 R)
• M59: 21,211,332 km (0.096 R)
• M60: 21,560,943 km (0.083 R)
• M61: 21,736,421 km (0.067 R)
• M62: 21,877,193 km (0.113 R)
• M63: 22,195,088 km (0.041 R)
• M64: 22,514,330 km (0.083 R)
• M65: 23,373,471 km (0.065 R)
• M66: 23,879,560 km (0.046 R)
• M67: 24,061,172 km (0.091 R)
• M68: 24,535,547 km (0.034 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 868.3

Radius: 13.7

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 7.85 AU - 10.95 AU

Year: 10372 Days

Day: 11.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (84)

Outer Limit: 62,252,172 km

• M1: 175,179 km (0.073 R)
• M2: 445,652 km (0.087 R)
• M3: 798,703 km (0.078 R)
• M4: 1,215,333 km (0.05 R)
• M5: 1,437,336 km (0.12 R)
• M6: 1,624,782 km (0.088 R)
• M7: 1,896,452 km (0.094 R)
• M8: 2,156,304 km (0.114 R)
• M9: 2,945,881 km (0.103 R)
• M10: 3,156,515 km (0.084 R)
• M11: 3,310,152 km (0.06 R)
• M12: 3,466,332 km (0.115 R)
• M13: 3,818,785 km (0.112 R)
• M14: 3,982,894 km (0.112 R)
• M15: 4,115,886 km (0.111 R)
• M16: 4,318,143 km (0.108 R)
• M17: 4,767,983 km (0.072 R)
• M18: 4,980,562 km (0.079 R)
• M19: 5,526,295 km (0.105 R)
• M20: 5,787,493 km (0.105 R)
• M21: 6,361,051 km (0.071 R)
• M22: 6,556,276 km (0.067 R)
• M23: 6,992,952 km (0.111 R)
• M24: 7,936,616 km (0.075 R)
• M25: 8,231,772 km (0.058 R)
• M26: 10,397,650 km (0.084 R)
• M27: 10,674,556 km (0.095 R)
• M28: 10,953,706 km (0.086 R)
• M29: 11,094,328 km (0.088 R)
• M30: 11,472,062 km (0.078 R)
• M31: 11,614,779 km (0.12 R)
• M32: 11,710,372 km (0.116 R)
• M33: 11,950,177 km (0.112 R)
• M34: 12,337,486 km (0.095 R)
• M35: 12,630,698 km (0.064 R)
• M36: 12,926,154 km (0.099 R)
• M37: 13,025,187 km (0.064 R)
• M38: 13,775,870 km (0.093 R)
• M39: 13,927,711 km (0.091 R)
• M40: 14,181,878 km (0.087 R)
• M41: 15,058,073 km (0.113 R)
• M42: 15,371,480 km (0.104 R)
• M43: 16,378,274 km (0.114 R)
• M44: 17,024,986 km (0.101 R)
• M45: 17,188,047 km (0.115 R)
• M46: 17,735,276 km (0.053 R)
• M47: 18,010,985 km (0.105 R)
• M48: 18,622,541 km (0.077 R)
• M49: 19,071,784 km (0.103 R)
• M50: 19,241,129 km (0.051 R)
• M51: 20,440,604 km (0.082 R)
• M52: 20,845,715 km (0.095 R)
• M53: 21,664,165 km (0.107 R)
• M54: 21,959,023 km (0.092 R)
• M55: 22,911,363 km (0.094 R)
• M56: 24,794,949 km (0.117 R)
• M57: 24,918,069 km (0.118 R)
• M58: 25,165,204 km (0.04 R)
• M59: 27,936,206 km (0.103 R)
• M60: 28,902,907 km (0.103 R)
• M61: 29,097,534 km (0.089 R)
• M62: 29,880,529 km (0.051 R)
• M63: 31,600,605 km (0.054 R)
• M64: 32,069,296 km (0.05 R)
• M65: 32,270,804 km (0.083 R)
• M66: 33,966,645 km (0.097 R)
• M67: 35,344,143 km (0.107 R)
• M68: 37,585,867 km (0.118 R)
• M69: 38,795,365 km (0.082 R)
• M70: 39,801,112 km (0.12 R)
• M71: 41,252,660 km (0.093 R)
• M72: 41,838,186 km (0.086 R)
• M73: 42,426,405 km (0.043 R)
• M74: 42,573,908 km (0.077 R)
• M75: 43,685,570 km (0.118 R)
• M76: 44,282,316 km (0.113 R)
• M77: 44,431,914 km (0.119 R)
• M78: 45,559,433 km (0.039 R)
• M79: 45,861,621 km (0.094 R)
• M80: 46,924,813 km (0.049 R)
• M81: 47,919,340 km (0.039 R)
• M82: 48,920,748 km (0.075 R)
• M83: 49,773,456 km (0.093 R)
• M84: 52,124,087 km (0.082 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 862.5

Radius: 4.7

Gravity: 39.04 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 12.85 AU - 17.45 AU

Year: 21222 Days

Day: 19.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (96)

Outer Limit: 62,252,172 km

• M1: 119,529 km (0.046 R)
• M2: 1,539,811 km (0.103 R)
• M3: 1,573,171 km (0.105 R)
• M4: 1,848,132 km (0.065 R)
• M5: 1,955,095 km (0.111 R)
• M6: 2,481,081 km (0.03 R)
• M7: 2,678,999 km (0.079 R)
• M8: 2,719,240 km (0.073 R)
• M9: 3,433,122 km (0.075 R)
• M10: 5,270,931 km (0.078 R)
• M11: 5,321,495 km (0.11 R)
• M12: 5,423,072 km (0.072 R)
• M13: 5,940,382 km (0.113 R)
• M14: 6,910,524 km (0.11 R)
• M15: 7,244,726 km (0.087 R)
• M16: 7,584,163 km (0.033 R)
• M17: 8,278,597 km (0.095 R)
• M18: 9,480,466 km (0.102 R)
• M19: 9,789,385 km (0.1 R)
• M20: 11,057,676 km (0.074 R)
• M21: 11,710,970 km (0.108 R)
• M22: 12,309,661 km (0.063 R)
• M23: 12,444,000 km (0.111 R)
• M24: 12,850,158 km (0.118 R)
• M25: 12,918,225 km (0.091 R)
• M26: 13,467,399 km (0.063 R)
• M27: 16,031,057 km (0.102 R)
• M28: 16,325,017 km (0.096 R)
• M29: 17,292,616 km (0.117 R)
• M30: 17,518,509 km (0.051 R)
• M31: 18,585,890 km (0.113 R)
• M32: 19,517,286 km (0.055 R)
• M33: 20,305,069 km (0.045 R)
• M34: 21,022,839 km (0.104 R)
• M35: 21,183,507 km (0.065 R)
• M36: 21,586,823 km (0.051 R)
• M37: 21,911,451 km (0.108 R)
• M38: 21,992,832 km (0.058 R)
• M39: 22,155,893 km (0.076 R)
• M40: 22,483,214 km (0.094 R)
• M41: 24,143,900 km (0.049 R)
• M42: 24,312,197 km (0.071 R)
• M43: 24,649,840 km (0.052 R)
• M44: 24,734,512 km (0.035 R)
• M45: 24,904,006 km (0.116 R)
• M46: 25,929,649 km (0.109 R)
• M47: 26,447,707 km (0.067 R)
• M48: 26,708,007 km (0.098 R)
• M49: 26,794,923 km (0.069 R)
• M50: 27,406,180 km (0.1 R)
• M51: 28,731,468 km (0.08 R)
• M52: 29,177,868 km (0.047 R)
• M53: 32,737,400 km (0.045 R)
• M54: 33,016,848 km (0.115 R)
• M55: 33,390,694 km (0.093 R)
• M56: 34,236,969 km (0.081 R)
• M57: 34,804,992 km (0.065 R)
• M58: 35,185,419 km (0.096 R)
• M59: 37,886,708 km (0.075 R)
• M60: 37,984,545 km (0.084 R)
• M61: 39,856,762 km (0.111 R)
• M62: 40,854,131 km (0.08 R)
• M63: 42,771,826 km (0.116 R)
• M64: 44,512,248 km (0.106 R)
• M65: 46,903,720 km (0.093 R)
• M66: 48,591,632 km (0.043 R)
• M67: 51,485,005 km (0.071 R)
• M68: 52,026,848 km (0.065 R)
• M69: 52,135,456 km (0.041 R)
• M70: 52,788,750 km (0.086 R)
• M71: 56,988,262 km (0.098 R)
• M72: 57,100,161 km (0.113 R)
• M73: 57,548,805 km (0.075 R)
• M74: 58,111,143 km (0.096 R)
• M75: 61,983,035 km (0.072 R)
• M76: 63,253,420 km (0.07 R)
• M77: 63,485,447 km (0.106 R)
• M78: 64,882,691 km (0.034 R)
• M79: 67,115,888 km (0.117 R)
• M80: 68,182,521 km (0.119 R)
• M81: 68,658,392 km (0.092 R)
• M82: 69,254,689 km (0.086 R)
• M83: 70,092,437 km (0.07 R)
• M84: 70,452,519 km (0.097 R)
• M85: 70,692,923 km (0.102 R)
• M86: 71,054,052 km (0.102 R)
• M87: 73,111,771 km (0.075 R)
• M88: 74,331,442 km (0.079 R)
• M89: 74,943,746 km (0.104 R)
• M90: 76,173,291 km (0.083 R)
• M91: 80,654,794 km (0.104 R)
• M92: 81,032,080 km (0.112 R)
• M93: 81,409,964 km (0.103 R)
• M94: 81,914,857 km (0.081 R)
• M95: 83,435,370 km (0.115 R)
• M96: 83,689,686 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 202

Radius: 7

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 17.77 AU - 18.03 AU

Year: 27255 Days

Day: 15.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 62,252,172 km

• M1: 189,989 km (0.091 R)
• M2: 237,113 km (0.116 R)
• M3: 378,333 km (0.1 R)
• M4: 547,528 km (0.099 R)
• M5: 720,463 km (0.119 R)
• M6: 782,098 km (0.119 R)
• M7: 1,263,055 km (0.087 R)
• M8: 1,441,226 km (0.113 R)
• M9: 1,493,735 km (0.063 R)
• M10: 2,232,449 km (0.081 R)
• M11: 3,239,392 km (0.103 R)
• M12: 6,026,849 km (0.074 R)
• M13: 6,327,691 km (0.091 R)
• M14: 8,044,925 km (0.079 R)
• M15: 8,139,171 km (0.118 R)
• M16: 8,760,152 km (0.097 R)
• M17: 9,297,508 km (0.097 R)
• M18: 9,347,025 km (0.106 R)
• M19: 9,795,369 km (0.093 R)
• M20: 10,713,152 km (0.086 R)
• M21: 11,182,291 km (0.098 R)
• M22: 11,658,162 km (0.045 R)
• M23: 11,871,788 km (0.094 R)
• M24: 12,140,615 km (0.11 R)
• M25: 12,248,625 km (0.092 R)
• M26: 12,411,387 km (0.087 R)
• M27: 12,739,156 km (0.066 R)
• M28: 14,305,596 km (0.051 R)
• M29: 14,649,072 km (0.117 R)
• M30: 15,169,523 km (0.084 R)
• M31: 15,813,692 km (0.1 R)
• M32: 16,706,641 km (0.114 R)
• M33: 18,354,612 km (0.081 R)
• M34: 21,084,174 km (0.119 R)
• M35: 22,396,297 km (0.113 R)
• M36: 23,599,513 km (0.109 R)
• M37: 24,413,475 km (0.119 R)
• M38: 25,167,598 km (0.109 R)
• M39: 27,759,680 km (0.09 R)
• M40: 27,973,455 km (0.103 R)
• M41: 30,069,022 km (0.034 R)
• M42: 31,841,009 km (0.039 R)
• M43: 33,494,963 km (0.04 R)
• M44: 33,874,643 km (0.095 R)
• M45: 34,027,083 km (0.06 R)
• M46: 34,408,857 km (0.066 R)
• M47: 35,022,657 km (0.098 R)
• M48: 36,338,819 km (0.071 R)
• M49: 36,650,880 km (0.119 R)
• M50: 36,885,599 km (0.096 R)
• M51: 36,963,839 km (0.066 R)
• M52: 37,356,383 km (0.059 R)
• M53: 37,671,287 km (0.111 R)
• M54: 38,939,877 km (0.111 R)
• M55: 39,099,498 km (0.12 R)
• M56: 39,259,268 km (0.077 R)
• M57: 39,820,111 km (0.055 R)
• M58: 40,061,412 km (0.044 R)
• M59: 42,911,252 km (0.089 R)
• M60: 43,820,208 km (0.108 R)
• M61: 44,735,747 km (0.078 R)
• M62: 45,153,873 km (0.052 R)
• M63: 46,331,657 km (0.076 R)
• M64: 47,349,222 km (0.104 R)
• M65: 48,459,986 km (0.115 R)
• M66: 49,320,174 km (0.072 R)
• M67: 51,667,813 km (0.044 R)
• M68: 52,018,770 km (0.026 R)
• M69: 52,634,664 km (0.104 R)
• M70: 54,051,655 km (0.064 R)
• M71: 54,140,666 km (0.075 R)
• M72: 54,586,169 km (0.073 R)
• M73: 54,675,479 km (0.116 R)
• M74: 55,122,627 km (0.114 R)
• M75: 56,290,687 km (0.086 R)
• M76: 58,012,558 km (0.108 R)
• M77: 58,103,663 km (0.096 R)
• M78: 59,843,487 km (0.096 R)
• M79: 60,304,248 km (0.088 R)

Kuiper Belt

Range: 30.5 - 50.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 268 - 17,807 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit