🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 503.6

Radius: 13.6

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.92 AU - 1.06 AU

Year: 636 Days

Day: 12.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (46)

Outer Limit: 44,482,635 km

• M1: 172,187 km (0.104 R)
• M2: 283,189 km (0.074 R)
• M3: 384,915 km (0.085 R)
• M4: 473,477 km (0.113 R)
• M5: 603,478 km (0.109 R)
• M6: 820,844 km (0.117 R)
• M7: 925,412 km (0.082 R)
• M8: 1,096,852 km (0.077 R)
• M9: 1,208,302 km (0.067 R)
• M10: 1,414,897 km (0.111 R)
• M11: 1,519,914 km (0.059 R)
• M12: 1,645,726 km (0.12 R)
• M13: 1,863,840 km (0.09 R)
• M14: 1,979,778 km (0.102 R)
• M15: 2,091,528 km (0.056 R)
• M16: 2,239,630 km (0.062 R)
• M17: 2,433,209 km (0.086 R)
• M18: 2,560,667 km (0.111 R)
• M19: 2,661,346 km (0.066 R)
• M20: 2,815,133 km (0.092 R)
• M21: 3,024,719 km (0.08 R)
• M22: 3,116,124 km (0.063 R)
• M23: 3,247,321 km (0.109 R)
• M24: 3,467,529 km (0.1 R)
• M25: 3,555,493 km (0.099 R)
• M26: 3,717,208 km (0.116 R)
• M27: 3,873,238 km (0.071 R)
• M28: 4,065,023 km (0.109 R)
• M29: 4,157,774 km (0.091 R)
• M30: 4,414,783 km (0.083 R)
• M31: 4,729,985 km (0.096 R)
• M32: 4,827,822 km (0.051 R)
• M33: 4,944,359 km (0.115 R)
• M34: 5,052,668 km (0.107 R)
• M35: 5,198,526 km (0.112 R)
• M36: 5,382,681 km (0.085 R)
• M37: 5,485,006 km (0.113 R)
• M38: 5,748,149 km (0.086 R)
• M39: 5,910,163 km (0.104 R)
• M40: 6,054,226 km (0.104 R)
• M41: 6,180,038 km (0.088 R)
• M42: 6,385,286 km (0.093 R)
• M43: 6,473,848 km (0.05 R)
• M44: 6,582,755 km (0.069 R)
• M45: 6,802,514 km (0.089 R)
• M46: 6,893,021 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999.5

Radius: 9.9

Gravity: 10.2 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.91 AU - 1.33 AU

Year: 765 Days

Day: 8.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 155.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (59)

Outer Limit: 44,482,635 km

• M1: 140,921 km (0.103 R)
• M2: 234,569 km (0.094 R)
• M3: 329,863 km (0.102 R)
• M4: 397,631 km (0.115 R)
• M5: 471,383 km (0.107 R)
• M6: 555,906 km (0.101 R)
• M7: 754,123 km (0.098 R)
• M8: 843,732 km (0.096 R)
• M9: 905,666 km (0.09 R)
• M10: 1,101,340 km (0.047 R)
• M11: 1,296,565 km (0.047 R)
• M12: 1,443,171 km (0.11 R)
• M13: 1,650,065 km (0.103 R)
• M14: 1,745,059 km (0.079 R)
• M15: 2,309,791 km (0.046 R)
• M16: 2,452,807 km (0.108 R)
• M17: 2,719,540 km (0.091 R)
• M18: 2,813,786 km (0.117 R)
• M19: 2,899,506 km (0.091 R)
• M20: 3,005,421 km (0.092 R)
• M21: 3,161,901 km (0.118 R)
• M22: 3,311,050 km (0.117 R)
• M23: 3,391,683 km (0.057 R)
• M24: 3,564,917 km (0.081 R)
• M25: 3,626,851 km (0.088 R)
• M26: 3,772,709 km (0.12 R)
• M27: 3,846,311 km (0.076 R)
• M28: 3,941,754 km (0.102 R)
• M29: 4,102,572 km (0.11 R)
• M30: 4,178,418 km (0.058 R)
• M31: 4,287,475 km (0.095 R)
• M32: 4,486,291 km (0.071 R)
• M33: 4,553,161 km (0.104 R)
• M34: 4,665,509 km (0.067 R)
• M35: 4,881,528 km (0.073 R)
• M36: 4,950,493 km (0.072 R)
• M37: 5,124,176 km (0.078 R)
• M38: 5,394,499 km (0.105 R)
• M39: 5,513,430 km (0.066 R)
• M40: 5,742,015 km (0.091 R)
• M41: 5,998,127 km (0.108 R)
• M42: 6,121,545 km (0.118 R)
• M43: 6,220,878 km (0.083 R)
• M44: 6,308,093 km (0.05 R)
• M45: 6,370,775 km (0.072 R)
• M46: 6,496,587 km (0.102 R)
• M47: 6,712,456 km (0.102 R)
• M48: 7,361,262 km (0.102 R)
• M49: 7,493,357 km (0.107 R)
• M50: 7,800,332 km (0.111 R)
• M51: 7,881,115 km (0.12 R)
• M52: 7,989,274 km (0.098 R)
• M53: 8,097,882 km (0.096 R)
• M54: 8,371,646 km (0.046 R)
• M55: 8,481,900 km (0.113 R)
• M56: 8,634,490 km (0.114 R)
• M57: 8,773,915 km (0.11 R)
• M58: 9,168,405 km (0.078 R)
• M59: 9,554,218 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 278.8

Radius: 13.4

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 4.09 AU - 4.83 AU

Year: 6082 Days

Day: 12.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (70)

Outer Limit: 44,482,635 km

• M1: 213,177 km (0.107 R)
• M2: 304,880 km (0.094 R)
• M3: 458,368 km (0.051 R)
• M4: 586,424 km (0.086 R)
• M5: 1,053,319 km (0.072 R)
• M6: 1,154,596 km (0.091 R)
• M7: 1,259,464 km (0.108 R)
• M8: 1,423,125 km (0.077 R)
• M9: 1,550,881 km (0.078 R)
• M10: 1,638,246 km (0.083 R)
• M11: 1,833,621 km (0.076 R)
• M12: 2,085,095 km (0.041 R)
• M13: 2,264,613 km (0.1 R)
• M14: 2,535,086 km (0.03 R)
• M15: 2,834,281 km (0.099 R)
• M16: 3,163,696 km (0.093 R)
• M17: 3,467,080 km (0.111 R)
• M18: 3,839,729 km (0.109 R)
• M19: 4,204,897 km (0.117 R)
• M20: 4,581,285 km (0.086 R)
• M21: 4,925,211 km (0.068 R)
• M22: 5,144,521 km (0.079 R)
• M23: 5,233,083 km (0.114 R)
• M24: 5,411,853 km (0.115 R)
• M25: 5,729,748 km (0.118 R)
• M26: 6,218,035 km (0.05 R)
• M27: 6,383,790 km (0.109 R)
• M28: 6,599,211 km (0.098 R)
• M29: 6,792,641 km (0.089 R)
• M30: 7,234,852 km (0.077 R)
• M31: 7,359,318 km (0.09 R)
• M32: 8,173,130 km (0.079 R)
• M33: 8,564,478 km (0.111 R)
• M34: 9,284,493 km (0.062 R)
• M35: 9,392,802 km (0.115 R)
• M36: 9,638,142 km (0.105 R)
• M37: 9,775,323 km (0.12 R)
• M38: 10,079,456 km (0.063 R)
• M39: 10,162,931 km (0.039 R)
• M40: 10,414,854 km (0.076 R)
• M41: 10,612,174 km (0.1 R)
• M42: 10,725,419 km (0.072 R)
• M43: 11,530,106 km (0.057 R)
• M44: 11,675,815 km (0.1 R)
• M45: 11,998,647 km (0.049 R)
• M46: 12,443,700 km (0.107 R)
• M47: 12,833,702 km (0.072 R)
• M48: 13,227,743 km (0.099 R)
• M49: 13,503,003 km (0.036 R)
• M50: 13,811,025 km (0.11 R)
• M51: 15,289,501 km (0.097 R)
• M52: 15,546,211 km (0.032 R)
• M53: 15,707,328 km (0.04 R)
• M54: 16,031,357 km (0.115 R)
• M55: 16,194,119 km (0.103 R)
• M56: 16,652,936 km (0.105 R)
• M57: 16,784,881 km (0.09 R)
• M58: 16,950,187 km (0.101 R)
• M59: 17,049,669 km (0.054 R)
• M60: 17,785,092 km (0.057 R)
• M61: 19,010,897 km (0.115 R)
• M62: 19,114,270 km (0.083 R)
• M63: 19,217,941 km (0.051 R)
• M64: 19,564,410 km (0.119 R)
• M65: 21,435,729 km (0.117 R)
• M66: 22,301,901 km (0.077 R)
• M67: 22,775,827 km (0.107 R)
• M68: 23,919,353 km (0.074 R)
• M69: 24,142,852 km (0.104 R)
• M70: 25,346,517 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.2

Radius: 11.9

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 4.2 AU - 6.1 AU

Year: 7546 Days

Day: 11 Hours

Environment

Temp: -219 °C

Axial Tilt: 87.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 44,482,635 km

• M1: 161,566 km (0.109 R)
• M2: 327,619 km (0.104 R)
• M3: 443,408 km (0.094 R)
• M4: 526,285 km (0.111 R)
• M5: 642,672 km (0.107 R)
• M6: 725,699 km (0.075 R)
• M7: 828,024 km (0.071 R)
• M8: 1,015,770 km (0.076 R)
• M9: 1,235,678 km (0.056 R)
• M10: 1,415,645 km (0.026 R)
• M11: 1,566,140 km (0.077 R)
• M12: 2,071,332 km (0.113 R)
• M13: 2,443,083 km (0.093 R)
• M14: 3,052,245 km (0.119 R)
• M15: 3,450,176 km (0.063 R)
• M16: 4,051,410 km (0.025 R)
• M17: 5,379,539 km (0.103 R)
• M18: 5,860,347 km (0.1 R)
• M19: 5,982,718 km (0.038 R)
• M20: 6,544,159 km (0.086 R)
• M21: 6,831,237 km (0.095 R)
• M22: 7,851,644 km (0.103 R)
• M23: 7,952,922 km (0.071 R)
• M24: 8,088,757 km (0.112 R)
• M25: 8,535,157 km (0.112 R)
• M26: 8,954,480 km (0.049 R)
• M27: 9,704,563 km (0.067 R)
• M28: 9,922,528 km (0.076 R)
• M29: 10,105,486 km (0.056 R)
• M30: 10,999,034 km (0.11 R)
• M31: 11,455,457 km (0.096 R)
• M32: 12,034,550 km (0.082 R)
• M33: 12,583,724 km (0.104 R)
• M34: 14,652,663 km (0.11 R)
• M35: 14,903,089 km (0.098 R)
• M36: 15,028,752 km (0.079 R)
• M37: 15,238,937 km (0.07 R)
• M38: 15,534,991 km (0.083 R)
• M39: 16,046,915 km (0.116 R)
• M40: 16,391,289 km (0.063 R)
• M41: 16,999,853 km (0.107 R)
• M42: 17,793,171 km (0.085 R)
• M43: 18,239,122 km (0.042 R)
• M44: 18,463,519 km (0.102 R)
• M45: 18,643,635 km (0.07 R)
• M46: 18,779,170 km (0.096 R)
• M47: 20,152,180 km (0.091 R)
• M48: 20,477,106 km (0.086 R)
• M49: 20,757,153 km (0.119 R)
• M50: 20,850,652 km (0.12 R)
• M51: 21,085,371 km (0.083 R)
• M52: 21,320,838 km (0.108 R)
• M53: 21,509,930 km (0.117 R)
• M54: 21,604,625 km (0.106 R)
• M55: 22,271,682 km (0.097 R)
• M56: 22,511,488 km (0.114 R)
• M57: 23,528,304 km (0.08 R)
• M58: 24,263,727 km (0.114 R)
• M59: 25,506,287 km (0.083 R)
• M60: 25,656,783 km (0.093 R)
• M61: 25,757,313 km (0.111 R)
• M62: 26,871,368 km (0.119 R)
• M63: 27,126,731 km (0.12 R)
• M64: 29,936,030 km (0.105 R)
• M65: 30,041,796 km (0.039 R)
• M66: 31,482,573 km (0.076 R)
• M67: 31,590,283 km (0.088 R)
• M68: 31,859,859 km (0.025 R)
• M69: 31,967,868 km (0.07 R)
• M70: 32,130,182 km (0.091 R)
• M71: 33,273,858 km (0.049 R)
• M72: 33,713,077 km (0.089 R)
• M73: 33,933,435 km (0.091 R)
• M74: 34,043,838 km (0.117 R)
• M75: 34,708,501 km (0.11 R)
• M76: 35,713,350 km (0.083 R)
• M77: 35,938,046 km (0.043 R)
• M78: 36,558,129 km (0.11 R)
• M79: 37,011,411 km (0.108 R)
• M80: 37,238,650 km (0.11 R)
• M81: 37,866,213 km (0.062 R)
• M82: 38,439,771 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999.5

Radius: 10.5

Gravity: 9.07 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 4.57 AU - 6.19 AU

Year: 8057 Days

Day: 14.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (89)

Outer Limit: 44,482,635 km

• M1: 158,125 km (0.11 R)
• M2: 243,994 km (0.064 R)
• M3: 316,100 km (0.025 R)
• M4: 399,277 km (0.084 R)
• M5: 534,663 km (0.112 R)
• M6: 639,830 km (0.106 R)
• M7: 872,904 km (0.091 R)
• M8: 1,075,609 km (0.096 R)
• M9: 1,172,997 km (0.058 R)
• M10: 1,398,142 km (0.106 R)
• M11: 1,727,855 km (0.089 R)
• M12: 2,305,602 km (0.099 R)
• M13: 2,407,628 km (0.044 R)
• M14: 2,749,459 km (0.061 R)
• M15: 2,967,573 km (0.106 R)
• M16: 3,276,941 km (0.032 R)
• M17: 3,567,311 km (0.106 R)
• M18: 3,745,482 km (0.051 R)
• M19: 4,079,983 km (0.051 R)
• M20: 4,487,787 km (0.051 R)
• M21: 5,040,999 km (0.047 R)
• M22: 6,033,881 km (0.094 R)
• M23: 6,462,179 km (0.076 R)
• M24: 6,753,297 km (0.039 R)
• M25: 7,160,652 km (0.093 R)
• M26: 7,423,944 km (0.105 R)
• M27: 7,499,790 km (0.119 R)
• M28: 7,575,935 km (0.08 R)
• M29: 7,844,314 km (0.069 R)
• M30: 8,154,879 km (0.11 R)
• M31: 8,429,990 km (0.087 R)
• M32: 9,355,402 km (0.1 R)
• M33: 9,560,800 km (0.11 R)
• M34: 9,976,233 km (0.118 R)
• M35: 10,270,492 km (0.109 R)
• M36: 10,954,005 km (0.113 R)
• M37: 11,829,003 km (0.111 R)
• M38: 12,590,306 km (0.055 R)
• M39: 13,831,969 km (0.11 R)
• M40: 14,348,979 km (0.111 R)
• M41: 14,872,272 km (0.074 R)
• M42: 15,401,849 km (0.093 R)
• M43: 15,644,646 km (0.079 R)
• M44: 15,790,953 km (0.068 R)
• M45: 17,328,969 km (0.076 R)
• M46: 17,937,233 km (0.056 R)
• M47: 18,090,272 km (0.113 R)
• M48: 18,810,735 km (0.114 R)
• M49: 18,914,407 km (0.075 R)
• M50: 19,383,247 km (0.078 R)
• M51: 19,750,659 km (0.056 R)
• M52: 21,459,366 km (0.101 R)
• M53: 22,112,211 km (0.04 R)
• M54: 22,276,469 km (0.109 R)
• M55: 23,828,846 km (0.117 R)
• M56: 23,941,194 km (0.077 R)
• M57: 24,674,822 km (0.103 R)
• M58: 25,187,195 km (0.091 R)
• M59: 25,530,672 km (0.105 R)
• M60: 25,875,794 km (0.09 R)
• M61: 26,978,630 km (0.064 R)
• M62: 28,215,355 km (0.108 R)
• M63: 28,334,136 km (0.106 R)
• M64: 28,453,066 km (0.063 R)
• M65: 28,751,065 km (0.081 R)
• M66: 28,990,272 km (0.09 R)
• M67: 30,500,014 km (0.116 R)
• M68: 31,295,127 km (0.093 R)
• M69: 31,418,096 km (0.105 R)
• M70: 31,541,215 km (0.118 R)
• M71: 32,283,071 km (0.087 R)
• M72: 33,281,337 km (0.099 R)
• M73: 33,847,266 km (0.078 R)
• M74: 35,949,565 km (0.046 R)
• M75: 36,271,799 km (0.052 R)
• M76: 36,724,482 km (0.084 R)
• M77: 36,919,109 km (0.074 R)
• M78: 38,225,098 km (0.119 R)
• M79: 38,488,091 km (0.089 R)
• M80: 39,082,145 km (0.065 R)
• M81: 39,413,504 km (0.104 R)
• M82: 39,878,903 km (0.046 R)
• M83: 40,279,227 km (0.065 R)
• M84: 41,286,020 km (0.07 R)
• M85: 42,641,227 km (0.103 R)
• M86: 42,845,728 km (0.111 R)
• M87: 43,050,677 km (0.09 R)
• M88: 46,092,600 km (0.069 R)
• M89: 46,512,820 km (0.04 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 425.1

Radius: 6.4

Gravity: 10.38 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 5.63 AU - 7.89 AU

Year: 11348 Days

Day: 24.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (87)

Outer Limit: 44,482,635 km

• M1: 111,301 km (0.114 R)
• M2: 244,742 km (0.051 R)
• M3: 461,809 km (0.109 R)
• M4: 815,458 km (0.118 R)
• M5: 901,926 km (0.101 R)
• M6: 991,684 km (0.116 R)
• M7: 1,084,285 km (0.082 R)
• M8: 1,258,567 km (0.1 R)
• M9: 1,526,048 km (0.112 R)
• M10: 1,655,600 km (0.119 R)
• M11: 1,811,181 km (0.1 R)
• M12: 2,209,112 km (0.113 R)
• M13: 2,405,534 km (0.102 R)
• M14: 2,607,790 km (0.091 R)
• M15: 2,711,013 km (0.107 R)
• M16: 2,868,240 km (0.113 R)
• M17: 3,786,023 km (0.104 R)
• M18: 5,365,627 km (0.073 R)
• M19: 7,230,364 km (0.096 R)
• M20: 7,855,085 km (0.111 R)
• M21: 8,230,725 km (0.073 R)
• M22: 8,382,567 km (0.105 R)
• M23: 8,843,777 km (0.09 R)
• M24: 9,392,203 km (0.039 R)
• M25: 10,480,976 km (0.084 R)
• M26: 10,604,395 km (0.09 R)
• M27: 10,852,578 km (0.088 R)
• M28: 11,481,637 km (0.094 R)
• M29: 12,469,132 km (0.099 R)
• M30: 12,731,228 km (0.081 R)
• M31: 13,707,503 km (0.081 R)
• M32: 14,524,158 km (0.117 R)
• M33: 14,707,715 km (0.093 R)
• M34: 15,216,647 km (0.119 R)
• M35: 15,449,870 km (0.058 R)
• M36: 16,299,286 km (0.114 R)
• M37: 16,729,679 km (0.109 R)
• M38: 17,552,917 km (0.098 R)
• M39: 17,797,509 km (0.086 R)
• M40: 18,092,516 km (0.066 R)
• M41: 18,339,652 km (0.075 R)
• M42: 18,837,065 km (0.093 R)
• M43: 18,887,180 km (0.114 R)
• M44: 19,238,286 km (0.099 R)
• M45: 19,693,064 km (0.05 R)
• M46: 20,100,269 km (0.118 R)
• M47: 20,767,924 km (0.096 R)
• M48: 20,974,818 km (0.116 R)
• M49: 21,234,371 km (0.094 R)
• M50: 21,599,539 km (0.093 R)
• M51: 21,914,143 km (0.036 R)
• M52: 23,241,525 km (0.112 R)
• M53: 24,159,009 km (0.069 R)
• M54: 24,485,581 km (0.109 R)
• M55: 24,594,788 km (0.049 R)
• M56: 24,649,391 km (0.109 R)
• M57: 25,143,213 km (0.111 R)
• M58: 25,363,721 km (0.116 R)
• M59: 26,140,582 km (0.063 R)
• M60: 26,252,182 km (0.117 R)
• M61: 26,756,327 km (0.111 R)
• M62: 27,376,859 km (0.066 R)
• M63: 28,345,356 km (0.09 R)
• M64: 28,804,920 km (0.114 R)
• M65: 28,862,516 km (0.103 R)
• M66: 30,081,439 km (0.092 R)
• M67: 30,198,425 km (0.109 R)
• M68: 30,257,067 km (0.093 R)
• M69: 31,851,780 km (0.11 R)
• M70: 34,020,351 km (0.116 R)
• M71: 36,734,954 km (0.08 R)
• M72: 37,361,470 km (0.113 R)
• M73: 37,487,132 km (0.05 R)
• M74: 37,676,074 km (0.042 R)
• M75: 38,688,702 km (0.076 R)
• M76: 39,070,775 km (0.092 R)
• M77: 39,454,045 km (0.112 R)
• M78: 39,838,661 km (0.093 R)
• M79: 39,967,166 km (0.06 R)
• M80: 40,095,670 km (0.096 R)
• M81: 40,224,474 km (0.112 R)
• M82: 40,546,857 km (0.112 R)
• M83: 41,714,768 km (0.08 R)
• M84: 42,499,558 km (0.115 R)
• M85: 43,818,264 km (0.114 R)
• M86: 44,083,650 km (0.082 R)
• M87: 44,349,486 km (0.093 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 379 - 14,865 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit