🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.47 AU - 0.65 AU

Year: 271 Days

Day: 44.4 Hours

Environment

Temp: -123 °C

Axial Tilt: 20 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.8

Radius: 13.4

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.64 AU - 0.72 AU

Year: 362 Days

Day: 5.7 Hours

Environment

Temp: -140 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 25,617,905 km

• M1: 167,998 km (0.12 R)
• M2: 290,519 km (0.119 R)
• M3: 395,537 km (0.086 R)
• M4: 488,886 km (0.1 R)
• M5: 598,990 km (0.112 R)
• M6: 701,016 km (0.111 R)
• M7: 869,164 km (0.04 R)
• M8: 1,095,356 km (0.119 R)
• M9: 1,211,593 km (0.084 R)
• M10: 1,370,167 km (0.109 R)
• M11: 1,521,261 km (0.083 R)
• M12: 1,704,069 km (0.084 R)
• M13: 1,803,552 km (0.106 R)
• M14: 1,932,206 km (0.118 R)
• M15: 2,036,326 km (0.117 R)
• M16: 2,187,570 km (0.106 R)
• M17: 2,407,030 km (0.098 R)
• M18: 2,700,990 km (0.077 R)
• M19: 2,861,957 km (0.095 R)
• M20: 3,000,484 km (0.063 R)
• M21: 3,128,540 km (0.1 R)
• M22: 3,278,138 km (0.051 R)
• M23: 3,383,605 km (0.096 R)
• M24: 3,490,118 km (0.069 R)
• M25: 3,577,633 km (0.071 R)
• M26: 3,713,767 km (0.11 R)
• M27: 3,851,547 km (0.094 R)
• M28: 3,935,172 km (0.043 R)
• M29: 4,196,519 km (0.027 R)
• M30: 4,311,411 km (0.077 R)
• M31: 4,478,362 km (0.113 R)
• M32: 4,640,227 km (0.082 R)
• M33: 5,030,378 km (0.117 R)
• M34: 5,114,302 km (0.087 R)
• M35: 5,306,835 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 391.2

Radius: 12.2

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.69 AU - 0.77 AU

Year: 403 Days

Day: 14.7 Hours

Environment

Temp: -132 °C

Axial Tilt: 59.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 25,617,905 km

• M1: 156,928 km (0.117 R)
• M2: 265,686 km (0.056 R)
• M3: 344,374 km (0.09 R)
• M4: 422,315 km (0.115 R)
• M5: 502,649 km (0.116 R)
• M6: 602,431 km (0.084 R)
• M7: 730,486 km (0.12 R)
• M8: 843,134 km (0.074 R)
• M9: 928,255 km (0.077 R)
• M10: 1,059,901 km (0.118 R)
• M11: 1,140,385 km (0.039 R)
• M12: 1,227,451 km (0.077 R)
• M13: 1,373,458 km (0.113 R)
• M14: 1,498,223 km (0.08 R)
• M15: 1,603,689 km (0.04 R)
• M16: 1,822,401 km (0.059 R)
• M17: 1,905,877 km (0.074 R)
• M18: 2,056,372 km (0.089 R)
• M19: 2,143,438 km (0.078 R)
• M20: 2,380,102 km (0.11 R)
• M21: 2,509,803 km (0.049 R)
• M22: 2,653,118 km (0.101 R)
• M23: 2,737,192 km (0.11 R)
• M24: 2,861,957 km (0.067 R)
• M25: 3,052,844 km (0.113 R)
• M26: 3,176,412 km (0.104 R)
• M27: 3,313,892 km (0.119 R)
• M28: 3,520,786 km (0.113 R)
• M29: 3,644,503 km (0.113 R)
• M30: 3,801,132 km (0.062 R)
• M31: 3,973,020 km (0.062 R)
• M32: 4,075,944 km (0.113 R)
• M33: 4,153,884 km (0.119 R)
• M34: 4,284,782 km (0.062 R)
• M35: 4,390,548 km (0.118 R)
• M36: 4,490,479 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 304

Radius: 8.7

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.68 AU - 1 AU

Year: 497 Days

Day: 13.6 Hours

Environment

Temp: -139 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (48)

Outer Limit: 25,617,905 km

• M1: 109,356 km (0.062 R)
• M2: 177,423 km (0.116 R)
• M3: 243,097 km (0.108 R)
• M4: 321,935 km (0.114 R)
• M5: 380,727 km (0.034 R)
• M6: 435,180 km (0.058 R)
• M7: 524,490 km (0.11 R)
• M8: 590,164 km (0.03 R)
• M9: 683,812 km (0.082 R)
• M10: 756,516 km (0.057 R)
• M11: 902,674 km (0.109 R)
• M12: 967,001 km (0.068 R)
• M13: 1,178,682 km (0.078 R)
• M14: 1,317,508 km (0.069 R)
• M15: 1,396,047 km (0.119 R)
• M16: 1,538,614 km (0.072 R)
• M17: 1,616,555 km (0.034 R)
• M18: 1,690,905 km (0.11 R)
• M19: 1,761,365 km (0.05 R)
• M20: 1,863,840 km (0.112 R)
• M21: 1,978,881 km (0.102 R)
• M22: 2,232,748 km (0.025 R)
• M23: 2,293,635 km (0.118 R)
• M24: 2,405,983 km (0.115 R)
• M25: 2,491,403 km (0.11 R)
• M26: 2,566,202 km (0.059 R)
• M27: 2,855,225 km (0.111 R)
• M28: 2,988,367 km (0.11 R)
• M29: 3,068,103 km (0.071 R)
• M30: 3,123,604 km (0.085 R)
• M31: 3,185,836 km (0.055 R)
• M32: 3,273,650 km (0.1 R)
• M33: 3,387,644 km (0.09 R)
• M34: 3,464,387 km (0.077 R)
• M35: 3,522,282 km (0.084 R)
• M36: 3,580,625 km (0.103 R)
• M37: 3,671,880 km (0.118 R)
• M38: 3,757,450 km (0.117 R)
• M39: 3,910,339 km (0.065 R)
• M40: 3,990,972 km (0.086 R)
• M41: 4,167,497 km (0.069 R)
• M42: 4,256,807 km (0.09 R)
• M43: 4,312,009 km (0.11 R)
• M44: 4,528,477 km (0.102 R)
• M45: 4,591,907 km (0.084 R)
• M46: 4,655,785 km (0.109 R)
• M47: 4,884,969 km (0.077 R)
• M48: 4,942,863 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409.2

Radius: 8.2

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.77 AU - 0.97 AU

Year: 524 Days

Day: 13.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (47)

Outer Limit: 25,617,905 km

• M1: 105,167 km (0.075 R)
• M2: 165,904 km (0.07 R)
• M3: 218,263 km (0.091 R)
• M4: 332,706 km (0.076 R)
• M5: 434,133 km (0.113 R)
• M6: 533,017 km (0.114 R)
• M7: 617,241 km (0.118 R)
• M8: 670,797 km (0.092 R)
• M9: 742,454 km (0.118 R)
• M10: 804,089 km (0.072 R)
• M11: 942,018 km (0.111 R)
• M12: 1,135,149 km (0.031 R)
• M13: 1,212,042 km (0.104 R)
• M14: 1,276,070 km (0.09 R)
• M15: 1,548,488 km (0.032 R)
• M16: 1,788,742 km (0.069 R)
• M17: 2,267,904 km (0.096 R)
• M18: 2,329,089 km (0.095 R)
• M19: 2,446,823 km (0.095 R)
• M20: 2,503,221 km (0.118 R)
• M21: 2,785,512 km (0.114 R)
• M22: 2,877,515 km (0.067 R)
• M23: 2,950,519 km (0.037 R)
• M24: 3,017,389 km (0.091 R)
• M25: 3,091,590 km (0.087 R)
• M26: 3,146,043 km (0.075 R)
• M27: 3,221,291 km (0.091 R)
• M28: 3,324,962 km (0.111 R)
• M29: 3,380,613 km (0.11 R)
• M30: 3,613,836 km (0.111 R)
• M31: 3,837,784 km (0.11 R)
• M32: 3,910,937 km (0.069 R)
• M33: 3,969,879 km (0.059 R)
• M34: 4,029,119 km (0.091 R)
• M35: 4,110,949 km (0.087 R)
• M36: 4,193,378 km (0.036 R)
• M37: 4,459,363 km (0.112 R)
• M38: 4,528,776 km (0.043 R)
• M39: 4,660,572 km (0.11 R)
• M40: 4,817,500 km (0.073 R)
• M41: 4,888,559 km (0.065 R)
• M42: 4,968,145 km (0.064 R)
• M43: 5,023,945 km (0.086 R)
• M44: 5,080,044 km (0.108 R)
• M45: 5,192,841 km (0.099 R)
• M46: 5,429,206 km (0.085 R)
• M47: 5,511,634 km (0.037 R)

Planet 6 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.2

Radius: 12.7

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.89 AU - 0.99 AU

Year: 588 Days

Day: 13.6 Hours

Environment

Temp: -146 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 25,617,905 km

• M1: 159,771 km (0.088 R)
• M2: 240,105 km (0.06 R)
• M3: 415,284 km (0.101 R)
• M4: 591,211 km (0.04 R)
• M5: 792,719 km (0.118 R)
• M6: 875,596 km (0.035 R)
• M7: 961,765 km (0.047 R)
• M8: 1,053,917 km (0.086 R)
• M9: 1,160,879 km (0.108 R)
• M10: 1,392,457 km (0.092 R)
• M11: 1,517,371 km (0.074 R)
• M12: 1,775,428 km (0.112 R)
• M13: 1,901,389 km (0.089 R)
• M14: 2,112,172 km (0.116 R)
• M15: 2,220,481 km (0.074 R)
• M16: 2,338,215 km (0.084 R)
• M17: 2,424,084 km (0.116 R)
• M18: 2,657,307 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 713.3

Radius: 8.2

Gravity: 10.61 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.07 AU - 1.13 AU

Year: 745 Days

Day: 12.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (54)

Outer Limit: 25,617,905 km

• M1: 127,906 km (0.063 R)
• M2: 191,336 km (0.053 R)
• M3: 294,259 km (0.099 R)
• M4: 442,062 km (0.062 R)
• M5: 518,955 km (0.027 R)
• M6: 581,038 km (0.074 R)
• M7: 702,960 km (0.098 R)
• M8: 761,902 km (0.11 R)
• M9: 816,954 km (0.118 R)
• M10: 873,652 km (0.117 R)
• M11: 1,039,556 km (0.118 R)
• M12: 1,183,618 km (0.073 R)
• M13: 1,254,827 km (0.075 R)
• M14: 1,314,367 km (0.034 R)
• M15: 1,415,645 km (0.056 R)
• M16: 1,576,014 km (0.101 R)
• M17: 1,749,996 km (0.102 R)
• M18: 1,945,520 km (0.106 R)
• M19: 2,069,387 km (0.112 R)
• M20: 2,188,018 km (0.099 R)
• M21: 2,268,353 km (0.102 R)
• M22: 2,616,467 km (0.098 R)
• M23: 2,849,391 km (0.094 R)
• M24: 3,044,017 km (0.061 R)
• M25: 3,161,153 km (0.064 R)
• M26: 3,279,784 km (0.113 R)
• M27: 3,654,227 km (0.074 R)
• M28: 3,817,438 km (0.088 R)
• M29: 3,885,356 km (0.099 R)
• M30: 4,131,295 km (0.081 R)
• M31: 4,372,297 km (0.118 R)
• M32: 4,545,681 km (0.119 R)
• M33: 4,597,143 km (0.108 R)
• M34: 4,700,664 km (0.039 R)
• M35: 4,878,387 km (0.106 R)
• M36: 4,994,624 km (0.081 R)
• M37: 5,240,563 km (0.078 R)
• M38: 5,468,550 km (0.081 R)
• M39: 5,567,285 km (0.105 R)
• M40: 5,622,486 km (0.115 R)
• M41: 6,058,564 km (0.042 R)
• M42: 6,115,262 km (0.085 R)
• M43: 6,194,997 km (0.049 R)
• M44: 6,263,513 km (0.091 R)
• M45: 6,320,959 km (0.081 R)
• M46: 6,645,437 km (0.082 R)
• M47: 6,715,598 km (0.08 R)
• M48: 6,821,364 km (0.105 R)
• M49: 6,880,455 km (0.11 R)
• M50: 7,370,986 km (0.078 R)
• M51: 7,467,926 km (0.107 R)
• M52: 8,058,987 km (0.096 R)
• M53: 8,196,617 km (0.1 R)
• M54: 8,259,448 km (0.12 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63.6

Radius: 10.4

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.96 AU - 1.54 AU

Year: 902 Days

Day: 14.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 25,617,905 km

• M1: 133,591 km (0.064 R)
• M2: 201,209 km (0.047 R)
• M3: 312,061 km (0.082 R)
• M4: 474,674 km (0.116 R)
• M5: 665,411 km (0.074 R)
• M6: 774,019 km (0.115 R)
• M7: 846,574 km (0.099 R)
• M8: 1,071,420 km (0.056 R)
• M9: 1,193,193 km (0.076 R)
• M10: 1,340,846 km (0.05 R)
• M11: 1,472,941 km (0.08 R)
• M12: 1,538,465 km (0.076 R)
• M13: 1,618,499 km (0.049 R)
• M14: 1,695,393 km (0.063 R)
• M15: 1,857,706 km (0.027 R)
• M16: 2,069,238 km (0.117 R)
• M17: 2,745,121 km (0.082 R)
• M18: 2,826,652 km (0.103 R)
• M19: 2,981,186 km (0.049 R)
• M20: 3,065,111 km (0.102 R)
• M21: 3,467,529 km (0.058 R)
• M22: 3,573,744 km (0.076 R)
• M23: 3,819,832 km (0.097 R)
• M24: 3,984,838 km (0.059 R)
• M25: 4,164,805 km (0.058 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 722.2

Radius: 11.4

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 3.95 AU - 4.23 AU

Year: 5341 Days

Day: 12.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (81)

Outer Limit: 25,617,905 km

• M1: 189,092 km (0.03 R)
• M2: 446,998 km (0.093 R)
• M3: 635,342 km (0.074 R)
• M4: 798,404 km (0.092 R)
• M5: 906,264 km (0.084 R)
• M6: 1,019,509 km (0.109 R)
• M7: 1,122,582 km (0.046 R)
• M8: 1,229,545 km (0.097 R)
• M9: 1,888,823 km (0.049 R)
• M10: 1,962,126 km (0.095 R)
• M11: 2,304,106 km (0.11 R)
• M12: 2,644,741 km (0.117 R)
• M13: 4,018,947 km (0.107 R)
• M14: 4,478,661 km (0.091 R)
• M15: 4,727,293 km (0.104 R)
• M16: 4,904,117 km (0.109 R)
• M17: 5,606,779 km (0.044 R)
• M18: 5,875,157 km (0.065 R)
• M19: 5,956,389 km (0.09 R)
• M20: 6,175,101 km (0.116 R)
• M21: 6,452,306 km (0.081 R)
• M22: 6,733,550 km (0.119 R)
• M23: 7,279,133 km (0.04 R)
• M24: 7,988,676 km (0.118 R)
• M25: 8,078,883 km (0.102 R)
• M26: 8,473,971 km (0.083 R)
• M27: 8,875,342 km (0.067 R)
• M28: 9,219,866 km (0.074 R)
• M29: 9,696,784 km (0.064 R)
• M30: 9,954,392 km (0.064 R)
• M31: 10,116,556 km (0.091 R)
• M32: 10,247,005 km (0.083 R)
• M33: 10,740,978 km (0.09 R)
• M34: 11,957,956 km (0.113 R)
• M35: 12,234,413 km (0.104 R)
• M36: 12,512,964 km (0.072 R)
• M37: 13,719,920 km (0.079 R)
• M38: 13,936,837 km (0.08 R)
• M39: 14,227,655 km (0.045 R)
• M40: 14,300,808 km (0.115 R)
• M41: 14,520,717 km (0.107 R)
• M42: 15,561,619 km (0.052 R)
• M43: 16,053,198 km (0.096 R)
• M44: 16,205,339 km (0.096 R)
• M45: 17,245,643 km (0.094 R)
• M46: 18,069,777 km (0.08 R)
• M47: 18,307,488 km (0.053 R)
• M48: 18,586,339 km (0.117 R)
• M49: 19,390,427 km (0.062 R)
• M50: 20,165,045 km (0.118 R)
• M51: 20,576,738 km (0.119 R)
• M52: 20,908,098 km (0.077 R)
• M53: 21,157,776 km (0.116 R)
• M54: 21,241,252 km (0.097 R)
• M55: 21,324,877 km (0.086 R)
• M56: 21,408,502 km (0.101 R)
• M57: 21,660,126 km (0.107 R)
• M58: 22,208,851 km (0.106 R)
• M59: 22,676,644 km (0.105 R)
• M60: 22,890,419 km (0.118 R)
• M61: 23,190,812 km (0.081 R)
• M62: 24,056,086 km (0.096 R)
• M63: 24,536,594 km (0.111 R)
• M64: 24,624,258 km (0.034 R)
• M65: 25,152,638 km (0.038 R)
• M66: 25,329,612 km (0.109 R)
• M67: 26,265,497 km (0.041 R)
• M68: 26,400,135 km (0.086 R)
• M69: 27,031,438 km (0.092 R)
• M70: 27,439,840 km (0.111 R)
• M71: 27,987,518 km (0.119 R)
• M72: 28,079,221 km (0.099 R)
• M73: 28,585,161 km (0.073 R)
• M74: 29,001,193 km (0.056 R)
• M75: 29,372,794 km (0.075 R)
• M76: 29,699,216 km (0.102 R)
• M77: 29,886,363 km (0.079 R)
• M78: 30,308,678 km (0.086 R)
• M79: 30,402,775 km (0.112 R)
• M80: 31,111,869 km (0.097 R)
• M81: 31,349,431 km (0.116 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 30.2

Radius: 3

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 7.63 AU - 11.17 AU

Year: 18608 Days

Day: 21.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (48)

Outer Limit: 25,617,905 km

• M1: 183,706 km (0.104 R)
• M2: 394,639 km (0.054 R)
• M3: 521,199 km (0.114 R)
• M4: 562,787 km (0.1 R)
• M5: 970,591 km (0.097 R)
• M6: 1,278,015 km (0.078 R)
• M7: 1,306,139 km (0.12 R)
• M8: 1,628,672 km (0.096 R)
• M9: 2,122,495 km (0.091 R)
• M10: 2,274,037 km (0.111 R)
• M11: 2,325,349 km (0.104 R)
• M12: 2,731,059 km (0.083 R)
• M13: 3,101,463 km (0.111 R)
• M14: 3,686,092 km (0.084 R)
• M15: 3,726,333 km (0.083 R)
• M16: 5,175,937 km (0.066 R)
• M17: 5,493,832 km (0.072 R)
• M18: 6,195,895 km (0.097 R)
• M19: 6,339,659 km (0.081 R)
• M20: 6,411,914 km (0.069 R)
• M21: 6,484,469 km (0.1 R)
• M22: 6,777,532 km (0.077 R)
• M23: 6,950,467 km (0.067 R)
• M24: 7,000,133 km (0.093 R)
• M25: 7,427,085 km (0.116 R)
• M26: 7,605,406 km (0.075 R)
• M27: 8,704,203 km (0.061 R)
• M28: 9,299,303 km (0.115 R)
• M29: 10,159,939 km (0.089 R)
• M30: 10,188,064 km (0.059 R)
• M31: 10,642,542 km (0.112 R)
• M32: 11,630,187 km (0.101 R)
• M33: 11,926,092 km (0.101 R)
• M34: 12,616,187 km (0.083 R)
• M35: 13,411,748 km (0.111 R)
• M36: 15,083,205 km (0.041 R)
• M37: 17,456,276 km (0.088 R)
• M38: 20,331,996 km (0.081 R)
• M39: 20,759,697 km (0.091 R)
• M40: 20,867,108 km (0.077 R)
• M41: 21,951,244 km (0.085 R)
• M42: 22,426,666 km (0.066 R)
• M43: 22,647,322 km (0.072 R)
• M44: 22,720,925 km (0.077 R)
• M45: 22,831,627 km (0.093 R)
• M46: 23,648,731 km (0.115 R)
• M47: 23,835,878 km (0.051 R)
• M48: 25,120,774 km (0.087 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 498 - 18,057 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit