🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.53

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.39 AU - 0.63 AU

Year: 232 Days

Day: 35.1 Hours

Environment

Temp: -114 °C

Axial Tilt: 0.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83.6

Radius: 14.8

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.7 AU - 0.72 AU

Year: 380 Days

Day: 10.8 Hours

Environment

Temp: -131 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 60,444,101 km

• M1: 185,501 km (0.045 R)
• M2: 292,165 km (0.112 R)
• M3: 393,143 km (0.097 R)
• M4: 502,798 km (0.101 R)
• M5: 624,870 km (0.091 R)
• M6: 759,359 km (0.025 R)
• M7: 861,085 km (0.068 R)
• M8: 958,025 km (0.089 R)
• M9: 1,064,389 km (0.053 R)
• M10: 1,203,066 km (0.085 R)
• M11: 1,310,627 km (0.116 R)
• M12: 1,442,722 km (0.095 R)
• M13: 1,561,054 km (0.105 R)
• M14: 1,657,544 km (0.101 R)
• M15: 1,762,562 km (0.114 R)
• M16: 1,866,832 km (0.054 R)
• M17: 1,963,173 km (0.06 R)
• M18: 2,057,868 km (0.078 R)
• M19: 2,150,619 km (0.05 R)
• M20: 2,248,606 km (0.066 R)
• M21: 2,373,071 km (0.09 R)
• M22: 2,470,758 km (0.105 R)
• M23: 2,606,892 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 642.7

Radius: 11.5

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.77 AU - 0.89 AU

Year: 481 Days

Day: 12.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (49)

Outer Limit: 60,444,101 km

• M1: 149,149 km (0.077 R)
• M2: 280,197 km (0.106 R)
• M3: 355,145 km (0.07 R)
• M4: 440,416 km (0.099 R)
• M5: 556,654 km (0.061 R)
• M6: 693,386 km (0.1 R)
• M7: 768,484 km (0.11 R)
• M8: 918,980 km (0.099 R)
• M9: 1,045,839 km (0.047 R)
• M10: 1,124,078 km (0.093 R)
• M11: 1,240,316 km (0.03 R)
• M12: 1,490,593 km (0.114 R)
• M13: 1,562,849 km (0.115 R)
• M14: 1,810,583 km (0.086 R)
• M15: 1,900,043 km (0.06 R)
• M16: 2,003,415 km (0.117 R)
• M17: 2,096,165 km (0.062 R)
• M18: 2,190,412 km (0.113 R)
• M19: 2,548,250 km (0.071 R)
• M20: 2,683,187 km (0.057 R)
• M21: 2,758,435 km (0.066 R)
• M22: 2,918,056 km (0.116 R)
• M23: 3,009,610 km (0.116 R)
• M24: 3,166,837 km (0.059 R)
• M25: 3,246,423 km (0.113 R)
• M26: 3,334,237 km (0.088 R)
• M27: 3,415,319 km (0.102 R)
• M28: 3,587,058 km (0.095 R)
• M29: 3,892,537 km (0.102 R)
• M30: 3,985,886 km (0.09 R)
• M31: 4,127,405 km (0.113 R)
• M32: 4,230,628 km (0.097 R)
• M33: 4,366,911 km (0.093 R)
• M34: 4,504,691 km (0.09 R)
• M35: 4,586,372 km (0.066 R)
• M36: 4,784,589 km (0.091 R)
• M37: 4,859,687 km (0.091 R)
• M38: 4,951,989 km (0.12 R)
• M39: 5,129,861 km (0.095 R)
• M40: 5,206,604 km (0.034 R)
• M41: 5,301,150 km (0.095 R)
• M42: 5,404,821 km (0.083 R)
• M43: 5,535,570 km (0.052 R)
• M44: 5,702,521 km (0.052 R)
• M45: 5,808,885 km (0.083 R)
• M46: 5,915,848 km (0.1 R)
• M47: 5,987,655 km (0.03 R)
• M48: 6,077,713 km (0.06 R)
• M49: 6,177,195 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16.5

Radius: 9.9

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.76 AU - 1.1 AU

Year: 570 Days

Day: 12.1 Hours

Environment

Temp: -163 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,444,101 km

• M1: 126,261 km (0.118 R)
• M2: 239,656 km (0.117 R)
• M3: 319,391 km (0.065 R)
• M4: 398,080 km (0.081 R)
• M5: 498,610 km (0.115 R)
• M6: 701,165 km (0.05 R)
• M7: 794,514 km (0.104 R)
• M8: 913,744 km (0.09 R)
• M9: 1,032,525 km (0.062 R)
• M10: 1,149,660 km (0.035 R)
• M11: 1,220,868 km (0.072 R)
• M12: 1,435,840 km (0.049 R)
• M13: 1,536,221 km (0.105 R)
• M14: 1,633,758 km (0.086 R)
• M15: 1,722,619 km (0.073 R)
• M16: 1,824,196 km (0.06 R)
• M17: 1,913,806 km (0.066 R)
• M18: 1,987,557 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 651.6

Radius: 10.6

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.94 AU - 1.4 AU

Year: 805 Days

Day: 12.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (51)

Outer Limit: 60,444,101 km

• M1: 140,472 km (0.109 R)
• M2: 237,412 km (0.075 R)
• M3: 313,108 km (0.083 R)
• M4: 405,560 km (0.114 R)
• M5: 561,142 km (0.067 R)
• M6: 670,198 km (0.083 R)
• M7: 738,415 km (0.09 R)
• M8: 854,204 km (0.06 R)
• M9: 1,111,512 km (0.076 R)
• M10: 1,246,300 km (0.102 R)
• M11: 1,373,159 km (0.103 R)
• M12: 1,462,469 km (0.056 R)
• M13: 1,764,956 km (0.086 R)
• M14: 2,167,075 km (0.085 R)
• M15: 2,264,014 km (0.046 R)
• M16: 2,437,249 km (0.103 R)
• M17: 2,580,563 km (0.114 R)
• M18: 2,858,367 km (0.077 R)
• M19: 3,018,885 km (0.066 R)
• M20: 3,091,290 km (0.092 R)
• M21: 3,200,796 km (0.118 R)
• M22: 3,395,722 km (0.046 R)
• M23: 3,632,984 km (0.077 R)
• M24: 3,954,620 km (0.099 R)
• M25: 4,154,034 km (0.064 R)
• M26: 4,285,530 km (0.095 R)
• M27: 4,490,479 km (0.114 R)
• M28: 4,793,265 km (0.033 R)
• M29: 4,878,087 km (0.115 R)
• M30: 5,059,849 km (0.056 R)
• M31: 5,146,167 km (0.09 R)
• M32: 5,276,616 km (0.115 R)
• M33: 5,551,876 km (0.118 R)
• M34: 5,618,746 km (0.104 R)
• M35: 5,708,206 km (0.114 R)
• M36: 5,865,882 km (0.119 R)
• M37: 6,025,054 km (0.11 R)
• M38: 6,208,760 km (0.084 R)
• M39: 6,278,024 km (0.111 R)
• M40: 6,394,262 km (0.095 R)
• M41: 6,581,708 km (0.088 R)
• M42: 6,735,195 km (0.096 R)
• M43: 7,010,007 km (0.09 R)
• M44: 7,094,230 km (0.116 R)
• M45: 7,459,698 km (0.093 R)
• M46: 7,632,184 km (0.086 R)
• M47: 7,793,750 km (0.1 R)
• M48: 7,918,664 km (0.115 R)
• M49: 8,158,021 km (0.074 R)
• M50: 8,630,900 km (0.096 R)
• M51: 8,734,421 km (0.053 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712

Radius: 14.1

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.25 AU - 1.59 AU

Year: 1076 Days

Day: 14.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (51)

Outer Limit: 60,444,101 km

• M1: 179,218 km (0.101 R)
• M2: 299,794 km (0.093 R)
• M3: 392,994 km (0.074 R)
• M4: 522,246 km (0.106 R)
• M5: 765,941 km (0.077 R)
• M6: 973,433 km (0.11 R)
• M7: 1,091,765 km (0.09 R)
• M8: 1,193,193 km (0.101 R)
• M9: 1,283,101 km (0.117 R)
• M10: 1,542,653 km (0.116 R)
• M11: 1,708,557 km (0.104 R)
• M12: 1,863,241 km (0.105 R)
• M13: 2,187,121 km (0.087 R)
• M14: 2,280,320 km (0.098 R)
• M15: 2,617,664 km (0.087 R)
• M16: 2,747,215 km (0.068 R)
• M17: 2,930,173 km (0.086 R)
• M18: 3,085,755 km (0.057 R)
• M19: 3,329,899 km (0.085 R)
• M20: 3,470,671 km (0.085 R)
• M21: 3,646,747 km (0.095 R)
• M22: 3,736,057 km (0.084 R)
• M23: 4,042,583 km (0.046 R)
• M24: 4,169,891 km (0.066 R)
• M25: 4,322,032 km (0.119 R)
• M26: 4,512,021 km (0.026 R)
• M27: 4,753,323 km (0.11 R)
• M28: 4,986,546 km (0.084 R)
• M29: 5,173,394 km (0.102 R)
• M30: 5,324,637 km (0.106 R)
• M31: 5,413,498 km (0.081 R)
• M32: 5,541,404 km (0.105 R)
• M33: 6,010,094 km (0.086 R)
• M34: 6,370,177 km (0.036 R)
• M35: 6,573,181 km (0.082 R)
• M36: 6,958,096 km (0.047 R)
• M37: 7,069,397 km (0.092 R)
• M38: 7,167,384 km (0.055 R)
• M39: 7,392,977 km (0.107 R)
• M40: 7,592,242 km (0.075 R)
• M41: 7,692,472 km (0.087 R)
• M42: 7,909,090 km (0.085 R)
• M43: 8,259,598 km (0.108 R)
• M44: 8,481,451 km (0.078 R)
• M45: 8,585,571 km (0.045 R)
• M46: 8,690,140 km (0.116 R)
• M47: 9,666,266 km (0.087 R)
• M48: 10,072,724 km (0.108 R)
• M49: 10,278,122 km (0.109 R)
• M50: 10,468,859 km (0.102 R)
• M51: 10,983,476 km (0.043 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174.3

Radius: 8.9

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.78 AU - 2.14 AU

Year: 1745 Days

Day: 8.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (46)

Outer Limit: 60,444,101 km

• M1: 141,220 km (0.09 R)
• M2: 322,832 km (0.092 R)
• M3: 389,553 km (0.109 R)
• M4: 601,683 km (0.081 R)
• M5: 699,370 km (0.07 R)
• M6: 814,560 km (0.077 R)
• M7: 1,032,076 km (0.098 R)
• M8: 1,091,167 km (0.117 R)
• M9: 1,261,260 km (0.115 R)
• M10: 1,339,051 km (0.074 R)
• M11: 1,425,668 km (0.074 R)
• M12: 1,484,609 km (0.101 R)
• M13: 1,581,997 km (0.097 R)
• M14: 1,823,299 km (0.059 R)
• M15: 1,960,779 km (0.106 R)
• M16: 2,101,551 km (0.072 R)
• M17: 2,186,074 km (0.099 R)
• M18: 2,402,392 km (0.082 R)
• M19: 2,580,414 km (0.116 R)
• M20: 2,883,798 km (0.091 R)
• M21: 3,227,724 km (0.077 R)
• M22: 3,666,045 km (0.065 R)
• M23: 3,768,221 km (0.101 R)
• M24: 4,250,973 km (0.113 R)
• M25: 4,315,300 km (0.081 R)
• M26: 4,697,523 km (0.109 R)
• M27: 4,898,433 km (0.099 R)
• M28: 4,988,640 km (0.039 R)
• M29: 5,193,589 km (0.081 R)
• M30: 5,331,818 km (0.074 R)
• M31: 5,424,568 km (0.104 R)
• M32: 5,588,378 km (0.059 R)
• M33: 5,837,010 km (0.086 R)
• M34: 6,028,944 km (0.088 R)
• M35: 6,222,972 km (0.11 R)
• M36: 6,742,226 km (0.113 R)
• M37: 6,804,908 km (0.104 R)
• M38: 6,956,301 km (0.085 R)
• M39: 7,159,904 km (0.1 R)
• M40: 7,223,932 km (0.099 R)
• M41: 7,288,109 km (0.097 R)
• M42: 7,365,451 km (0.04 R)
• M43: 7,507,868 km (0.047 R)
• M44: 8,287,572 km (0.066 R)
• M45: 8,653,040 km (0.11 R)
• M46: 9,455,633 km (0.067 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712.7

Radius: 9.8

Gravity: 7.42 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 2.47 AU - 3.55 AU

Year: 3320 Days

Day: 10.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (72)

Outer Limit: 60,444,101 km

• M1: 187,446 km (0.071 R)
• M2: 420,669 km (0.067 R)
• M3: 488,287 km (0.117 R)
• M4: 665,860 km (0.088 R)
• M5: 778,956 km (0.042 R)
• M6: 1,013,675 km (0.119 R)
• M7: 1,121,236 km (0.083 R)
• M8: 1,467,854 km (0.083 R)
• M9: 1,604,587 km (0.062 R)
• M10: 1,674,599 km (0.117 R)
• M11: 1,891,067 km (0.111 R)
• M12: 2,025,406 km (0.082 R)
• M13: 2,351,379 km (0.09 R)
• M14: 2,480,034 km (0.057 R)
• M15: 3,052,694 km (0.12 R)
• M16: 3,122,706 km (0.115 R)
• M17: 3,300,279 km (0.114 R)
• M18: 3,426,539 km (0.11 R)
• M19: 3,628,197 km (0.094 R)
• M20: 3,815,045 km (0.057 R)
• M21: 4,024,332 km (0.037 R)
• M22: 4,178,867 km (0.107 R)
• M23: 4,533,713 km (0.091 R)
• M24: 4,634,093 km (0.106 R)
• M25: 5,378,343 km (0.115 R)
• M26: 5,786,146 km (0.052 R)
• M27: 5,873,362 km (0.032 R)
• M28: 6,159,543 km (0.079 R)
• M29: 6,248,553 km (0.047 R)
• M30: 6,338,013 km (0.113 R)
• M31: 6,563,457 km (0.043 R)
• M32: 7,468,075 km (0.047 R)
• M33: 7,995,557 km (0.055 R)
• M34: 8,559,841 km (0.1 R)
• M35: 8,634,340 km (0.117 R)
• M36: 8,809,220 km (0.047 R)
• M37: 9,213,284 km (0.068 R)
• M38: 9,520,259 km (0.067 R)
• M39: 10,249,698 km (0.038 R)
• M40: 10,355,314 km (0.116 R)
• M41: 11,132,475 km (0.106 R)
• M42: 11,706,781 km (0.089 R)
• M43: 11,789,659 km (0.077 R)
• M44: 12,122,963 km (0.096 R)
• M45: 12,487,682 km (0.105 R)
• M46: 12,855,843 km (0.083 R)
• M47: 13,084,279 km (0.101 R)
• M48: 13,777,665 km (0.078 R)
• M49: 14,334,917 km (0.114 R)
• M50: 14,631,270 km (0.057 R)
• M51: 14,839,810 km (0.115 R)
• M52: 15,320,468 km (0.103 R)
• M53: 15,958,951 km (0.081 R)
• M54: 16,451,278 km (0.117 R)
• M55: 16,513,211 km (0.11 R)
• M56: 17,703,861 km (0.086 R)
• M57: 17,767,290 km (0.092 R)
• M58: 18,021,756 km (0.093 R)
• M59: 18,695,545 km (0.096 R)
• M60: 19,508,460 km (0.031 R)
• M61: 20,266,472 km (0.114 R)
• M62: 20,465,886 km (0.087 R)
• M63: 20,532,457 km (0.101 R)
• M64: 20,599,178 km (0.108 R)
• M65: 20,900,019 km (0.111 R)
• M66: 21,000,699 km (0.116 R)
• M67: 21,607,767 km (0.05 R)
• M68: 21,743,452 km (0.081 R)
• M69: 21,981,612 km (0.112 R)
• M70: 22,049,829 km (0.082 R)
• M71: 22,597,955 km (0.065 R)
• M72: 23,150,719 km (0.095 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 361

Radius: 6.9

Gravity: 7.58 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 8.47 AU - 11.13 AU

Year: 19506 Days

Day: 23.8 Hours

Environment

Temp: -236 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 60,444,101 km

• M1: 324,328 km (0.053 R)
• M2: 464,202 km (0.076 R)
• M3: 623,973 km (0.074 R)
• M4: 720,613 km (0.049 R)
• M5: 864,376 km (0.059 R)
• M6: 995,125 km (0.103 R)
• M7: 1,063,042 km (0.099 R)
• M8: 2,378,606 km (0.057 R)
• M9: 2,594,925 km (0.099 R)
• M10: 2,721,335 km (0.059 R)
• M11: 4,733,725 km (0.057 R)
• M12: 5,403,625 km (0.111 R)
• M13: 5,647,170 km (0.102 R)
• M14: 5,894,306 km (0.078 R)
• M15: 6,061,107 km (0.073 R)
• M16: 6,271,741 km (0.112 R)
• M17: 6,613,722 km (0.069 R)
• M18: 6,830,639 km (0.1 R)
• M19: 7,995,557 km (0.107 R)
• M20: 8,980,809 km (0.084 R)
• M21: 9,269,234 km (0.104 R)
• M22: 9,463,262 km (0.11 R)
• M23: 9,511,881 km (0.032 R)
• M24: 9,560,800 km (0.098 R)
• M25: 10,103,092 km (0.07 R)
• M26: 10,202,724 km (0.093 R)
• M27: 11,736,701 km (0.077 R)
• M28: 12,157,669 km (0.113 R)
• M29: 12,210,777 km (0.088 R)
• M30: 12,906,556 km (0.113 R)
• M31: 13,014,716 km (0.094 R)
• M32: 13,891,060 km (0.062 R)
• M33: 14,617,058 km (0.096 R)
• M34: 14,729,855 km (0.112 R)
• M35: 15,183,885 km (0.085 R)
• M36: 15,298,177 km (0.114 R)
• M37: 16,456,215 km (0.108 R)
• M38: 16,927,298 km (0.104 R)
• M39: 17,343,031 km (0.069 R)
• M40: 17,522,249 km (0.109 R)
• M41: 18,306,142 km (0.077 R)
• M42: 19,039,770 km (0.119 R)
• M43: 20,598,879 km (0.103 R)
• M44: 21,170,193 km (0.097 R)
• M45: 21,746,594 km (0.077 R)
• M46: 21,939,874 km (0.1 R)
• M47: 22,133,753 km (0.097 R)
• M48: 23,243,171 km (0.064 R)
• M49: 24,170,229 km (0.112 R)
• M50: 25,312,109 km (0.115 R)
• M51: 25,992,181 km (0.115 R)
• M52: 26,609,123 km (0.047 R)
• M53: 26,954,096 km (0.087 R)
• M54: 27,787,954 km (0.093 R)
• M55: 28,137,863 km (0.067 R)
• M56: 30,196,031 km (0.044 R)
• M57: 32,596,329 km (0.119 R)
• M58: 34,530,330 km (0.087 R)
• M59: 34,605,428 km (0.107 R)
• M60: 35,890,773 km (0.087 R)
• M61: 36,501,132 km (0.046 R)
• M62: 36,654,321 km (0.111 R)
• M63: 36,884,253 km (0.115 R)
• M64: 37,038,039 km (0.064 R)
• M65: 37,191,826 km (0.085 R)
• M66: 37,345,912 km (0.095 R)
• M67: 38,041,841 km (0.036 R)
• M68: 38,352,556 km (0.109 R)
• M69: 42,467,395 km (0.076 R)
• M70: 42,951,194 km (0.051 R)
• M71: 43,355,707 km (0.102 R)
• M72: 44,005,560 km (0.108 R)
• M73: 45,150,582 km (0.048 R)
• M74: 45,397,119 km (0.088 R)
• M75: 46,553,960 km (0.025 R)
• M76: 46,720,013 km (0.095 R)
• M77: 48,223,472 km (0.074 R)
• M78: 48,559,618 km (0.113 R)
• M79: 48,981,036 km (0.087 R)
• M80: 49,657,816 km (0.064 R)
• M81: 50,082,375 km (0.097 R)
• M82: 50,337,589 km (0.051 R)
• M83: 50,593,401 km (0.112 R)
• M84: 51,191,793 km (0.073 R)
• M85: 52,827,795 km (0.053 R)
• M86: 52,914,412 km (0.088 R)
• M87: 55,094,203 km (0.045 R)
• M88: 56,681,736 km (0.104 R)
• M89: 56,859,009 km (0.085 R)
• M90: 58,373,688 km (0.092 R)
• M91: 58,911,492 km (0.118 R)
• M92: 59,360,884 km (0.093 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 341 - 14,444 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit