🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.77

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.43 AU - 0.67 AU

Year: 171 Days

Day: 21.6 Hours

Environment

Temp: 143 °C

Axial Tilt: 17.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.46

Radius: 0.73

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.69 AU - 0.81 AU

Year: 272 Days

Day: 17 Hours

Environment

Temp: 18 °C

Axial Tilt: 32.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.37

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.92 AU - 1.2 AU

Year: 457 Days

Day: 33.5 Hours

Environment

Temp: -49 °C

Axial Tilt: 6.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.23

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 2.54 AU - 2.92 AU

Year: 1890 Days

Day: 36.8 Hours

Environment

Temp: -121 °C

Axial Tilt: 8.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572.5

Radius: 11

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 3.67 AU - 3.81 AU

Year: 3030 Days

Day: 10.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (75)

Outer Limit: 74,603,970 km

• M1: 269,276 km (0.088 R)
• M2: 390,750 km (0.112 R)
• M3: 552,315 km (0.097 R)
• M4: 835,055 km (0.117 R)
• M5: 1,151,604 km (0.05 R)
• M6: 1,288,786 km (0.112 R)
• M7: 1,395,449 km (0.082 R)
• M8: 1,505,254 km (0.085 R)
• M9: 1,799,214 km (0.085 R)
• M10: 2,069,986 km (0.115 R)
• M11: 2,196,246 km (0.086 R)
• M12: 2,456,547 km (0.055 R)
• M13: 2,742,129 km (0.085 R)
• M14: 2,896,963 km (0.115 R)
• M15: 3,134,524 km (0.042 R)
• M16: 3,428,185 km (0.113 R)
• M17: 3,595,286 km (0.068 R)
• M18: 3,816,541 km (0.064 R)
• M19: 4,042,284 km (0.091 R)
• M20: 4,783,093 km (0.108 R)
• M21: 5,236,225 km (0.091 R)
• M22: 5,371,012 km (0.057 R)
• M23: 5,644,028 km (0.073 R)
• M24: 5,822,050 km (0.074 R)
• M25: 5,921,682 km (0.102 R)
• M26: 6,062,304 km (0.084 R)
• M27: 6,183,628 km (0.115 R)
• M28: 6,285,355 km (0.068 R)
• M29: 6,490,453 km (0.058 R)
• M30: 7,097,970 km (0.086 R)
• M31: 7,419,456 km (0.085 R)
• M32: 7,855,384 km (0.107 R)
• M33: 8,232,670 km (0.029 R)
• M34: 8,389,748 km (0.109 R)
• M35: 8,684,007 km (0.067 R)
• M36: 8,821,038 km (0.106 R)
• M37: 8,935,780 km (0.082 R)
• M38: 9,236,322 km (0.031 R)
• M39: 9,990,445 km (0.047 R)
• M40: 10,206,165 km (0.057 R)
• M41: 11,034,937 km (0.102 R)
• M42: 11,183,338 km (0.116 R)
• M43: 11,307,654 km (0.084 R)
• M44: 11,557,483 km (0.115 R)
• M45: 11,632,880 km (0.073 R)
• M46: 12,164,700 km (0.096 R)
• M47: 12,343,769 km (0.039 R)
• M48: 12,704,599 km (0.106 R)
• M49: 12,860,331 km (0.084 R)
• M50: 12,964,451 km (0.119 R)
• M51: 13,304,935 km (0.029 R)
• M52: 13,648,263 km (0.034 R)
• M53: 13,781,105 km (0.059 R)
• M54: 13,994,582 km (0.119 R)
• M55: 14,155,399 km (0.086 R)
• M56: 14,236,033 km (0.09 R)
• M57: 14,343,893 km (0.119 R)
• M58: 14,506,057 km (0.114 R)
• M59: 15,050,892 km (0.117 R)
• M60: 15,547,108 km (0.08 R)
• M61: 16,217,008 km (0.051 R)
• M62: 16,301,530 km (0.114 R)
• M63: 16,555,548 km (0.103 R)
• M64: 16,811,061 km (0.111 R)
• M65: 17,039,197 km (0.107 R)
• M66: 17,297,104 km (0.114 R)
• M67: 17,440,868 km (0.103 R)
• M68: 17,614,102 km (0.094 R)
• M69: 17,787,785 km (0.116 R)
• M70: 18,312,275 km (0.105 R)
• M71: 18,782,910 km (0.101 R)
• M72: 18,930,713 km (0.032 R)
• M73: 19,376,664 km (0.116 R)
• M74: 20,097,427 km (0.03 R)
• M75: 20,309,257 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448.8

Radius: 9.6

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 7.05 AU - 10.31 AU

Year: 10714 Days

Day: 10.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 74,603,970 km

• M1: 139,575 km (0.057 R)
• M2: 207,343 km (0.045 R)
• M3: 404,064 km (0.043 R)
• M4: 520,601 km (0.095 R)
• M5: 680,072 km (0.113 R)
• M6: 856,448 km (0.11 R)
• M7: 1,048,232 km (0.09 R)
• M8: 1,140,085 km (0.108 R)
• M9: 1,312,721 km (0.12 R)
• M10: 1,683,724 km (0.104 R)
• M11: 1,792,631 km (0.081 R)
• M12: 1,926,521 km (0.116 R)
• M13: 3,356,527 km (0.104 R)
• M14: 3,494,756 km (0.058 R)
• M15: 3,634,779 km (0.098 R)
• M16: 5,391,058 km (0.112 R)
• M17: 5,717,182 km (0.11 R)
• M18: 5,915,848 km (0.095 R)
• M19: 6,016,078 km (0.066 R)
• M20: 6,184,376 km (0.085 R)
• M21: 6,354,319 km (0.033 R)
• M22: 6,525,758 km (0.077 R)
• M23: 7,369,939 km (0.115 R)
• M24: 7,477,799 km (0.101 R)
• M25: 7,622,610 km (0.107 R)
• M26: 8,397,826 km (0.117 R)
• M27: 8,737,712 km (0.057 R)
• M28: 10,142,137 km (0.085 R)
• M29: 10,463,773 km (0.091 R)
• M30: 10,707,168 km (0.096 R)
• M31: 11,240,934 km (0.081 R)
• M32: 11,825,412 km (0.109 R)
• M33: 12,462,699 km (0.112 R)
• M34: 12,591,503 km (0.058 R)
• M35: 12,677,522 km (0.072 R)
• M36: 13,593,659 km (0.11 R)
• M37: 15,121,502 km (0.044 R)
• M38: 15,488,915 km (0.107 R)
• M39: 16,326,214 km (0.11 R)
• M40: 16,420,161 km (0.106 R)
• M41: 18,239,272 km (0.082 R)
• M42: 19,770,107 km (0.115 R)
• M43: 20,373,734 km (0.078 R)
• M44: 20,576,140 km (0.111 R)
• M45: 21,495,868 km (0.076 R)
• M46: 21,857,146 km (0.113 R)
• M47: 21,960,818 km (0.097 R)
• M48: 22,376,849 km (0.119 R)
• M49: 23,587,395 km (0.052 R)
• M50: 25,306,724 km (0.076 R)
• M51: 27,121,795 km (0.061 R)
• M52: 27,344,696 km (0.098 R)
• M53: 28,242,133 km (0.062 R)
• M54: 28,751,215 km (0.118 R)
• M55: 28,978,454 km (0.082 R)
• M56: 29,092,298 km (0.103 R)
• M57: 29,320,435 km (0.102 R)
• M58: 29,434,727 km (0.068 R)
• M59: 30,123,626 km (0.075 R)
• M60: 30,238,816 km (0.048 R)
• M61: 31,458,637 km (0.1 R)
• M62: 32,576,133 km (0.079 R)
• M63: 33,407,748 km (0.109 R)
• M64: 34,186,405 km (0.096 R)
• M65: 34,306,681 km (0.112 R)
• M66: 35,274,131 km (0.094 R)
• M67: 35,639,299 km (0.117 R)
• M68: 35,883,443 km (0.092 R)
• M69: 36,619,165 km (0.116 R)
• M70: 36,742,284 km (0.069 R)
• M71: 37,359,824 km (0.086 R)
• M72: 37,669,941 km (0.083 R)
• M73: 37,732,024 km (0.101 R)
• M74: 38,730,590 km (0.045 R)
• M75: 39,233,089 km (0.087 R)
• M76: 40,181,090 km (0.086 R)
• M77: 40,371,678 km (0.107 R)
• M78: 41,136,722 km (0.077 R)
• M79: 41,328,805 km (0.112 R)
• M80: 41,457,011 km (0.088 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163

Radius: 12.3

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 9.79 AU - 10.35 AU

Year: 13388 Days

Day: 13.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (55)

Outer Limit: 74,603,970 km

• M1: 312,360 km (0.076 R)
• M2: 530,773 km (0.106 R)
• M3: 790,026 km (0.065 R)
• M4: 935,585 km (0.11 R)
• M5: 1,375,403 km (0.094 R)
• M6: 2,198,640 km (0.119 R)
• M7: 2,783,268 km (0.071 R)
• M8: 3,366,550 km (0.08 R)
• M9: 3,512,259 km (0.047 R)
• M10: 3,987,531 km (0.039 R)
• M11: 4,064,425 km (0.054 R)
• M12: 4,483,299 km (0.1 R)
• M13: 4,833,956 km (0.064 R)
• M14: 6,504,815 km (0.038 R)
• M15: 6,595,770 km (0.111 R)
• M16: 6,871,329 km (0.104 R)
• M17: 7,181,745 km (0.099 R)
• M18: 7,978,354 km (0.102 R)
• M19: 8,502,844 km (0.117 R)
• M20: 9,174,089 km (0.117 R)
• M21: 9,344,631 km (0.104 R)
• M22: 9,516,220 km (0.115 R)
• M23: 9,723,562 km (0.109 R)
• M24: 10,177,891 km (0.096 R)
• M25: 10,496,535 km (0.099 R)
• M26: 12,401,065 km (0.09 R)
• M27: 13,315,706 km (0.039 R)
• M28: 13,898,241 km (0.111 R)
• M29: 13,976,630 km (0.099 R)
• M30: 14,212,396 km (0.112 R)
• M31: 15,048,349 km (0.12 R)
• M32: 16,642,763 km (0.113 R)
• M33: 17,102,178 km (0.064 R)
• M34: 17,523,446 km (0.098 R)
• M35: 18,033,425 km (0.105 R)
• M36: 18,333,219 km (0.074 R)
• M37: 18,721,126 km (0.114 R)
• M38: 19,680,647 km (0.07 R)
• M39: 19,989,267 km (0.099 R)
• M40: 20,522,285 km (0.09 R)
• M41: 22,562,052 km (0.084 R)
• M42: 23,070,385 km (0.099 R)
• M43: 23,957,501 km (0.108 R)
• M44: 25,957,774 km (0.114 R)
• M45: 26,344,783 km (0.03 R)
• M46: 26,441,872 km (0.079 R)
• M47: 28,557,486 km (0.118 R)
• M48: 30,421,176 km (0.092 R)
• M49: 30,573,915 km (0.032 R)
• M50: 31,033,929 km (0.113 R)
• M51: 31,341,951 km (0.11 R)
• M52: 31,547,797 km (0.11 R)
• M53: 34,000,305 km (0.086 R)
• M54: 34,530,031 km (0.12 R)
• M55: 35,062,450 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 634.8

Radius: 3.1

Gravity: 66.06 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 11.17 AU - 11.89 AU

Year: 16403 Days

Day: 19.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (97)

Outer Limit: 74,603,970 km

• M1: 250,576 km (0.091 R)
• M2: 410,347 km (0.084 R)
• M3: 743,202 km (0.099 R)
• M4: 786,735 km (0.083 R)
• M5: 1,017,266 km (0.068 R)
• M6: 1,293,573 km (0.105 R)
• M7: 1,619,995 km (0.098 R)
• M8: 1,763,310 km (0.027 R)
• M9: 1,792,482 km (0.115 R)
• M10: 2,001,021 km (0.057 R)
• M11: 2,092,725 km (0.06 R)
• M12: 2,217,190 km (0.065 R)
• M13: 2,280,320 km (0.096 R)
• M14: 2,473,451 km (0.06 R)
• M15: 2,638,308 km (0.105 R)
• M16: 3,260,635 km (0.049 R)
• M17: 3,514,503 km (0.041 R)
• M18: 3,888,049 km (0.059 R)
• M19: 4,274,161 km (0.089 R)
• M20: 4,471,780 km (0.083 R)
• M21: 4,511,573 km (0.095 R)
• M22: 4,834,854 km (0.084 R)
• M23: 4,958,122 km (0.093 R)
• M24: 5,375,949 km (0.076 R)
• M25: 6,200,832 km (0.119 R)
• M26: 6,696,001 km (0.047 R)
• M27: 7,391,631 km (0.086 R)
• M28: 7,533,450 km (0.045 R)
• M29: 8,207,238 km (0.037 R)
• M30: 8,305,075 km (0.089 R)
• M31: 8,750,129 km (0.077 R)
• M32: 9,101,534 km (0.029 R)
• M33: 10,130,768 km (0.059 R)
• M34: 10,393,910 km (0.045 R)
• M35: 10,819,367 km (0.102 R)
• M36: 12,129,695 km (0.076 R)
• M37: 12,352,895 km (0.103 R)
• M38: 13,662,624 km (0.083 R)
• M39: 14,069,829 km (0.097 R)
• M40: 14,128,322 km (0.096 R)
• M41: 15,375,520 km (0.096 R)
• M42: 16,287,618 km (0.115 R)
• M43: 17,342,432 km (0.118 R)
• M44: 17,405,114 km (0.05 R)
• M45: 18,227,603 km (0.053 R)
• M46: 19,127,285 km (0.07 R)
• M47: 19,975,504 km (0.071 R)
• M48: 23,074,125 km (0.12 R)
• M49: 23,836,925 km (0.1 R)
• M50: 24,819,633 km (0.026 R)
• M51: 26,897,099 km (0.074 R)
• M52: 27,772,845 km (0.058 R)
• M53: 27,919,750 km (0.077 R)
• M54: 28,066,805 km (0.095 R)
• M55: 28,288,060 km (0.091 R)
• M56: 30,758,818 km (0.079 R)
• M57: 32,366,846 km (0.109 R)
• M58: 34,631,757 km (0.094 R)
• M59: 35,106,731 km (0.052 R)
• M60: 36,063,110 km (0.048 R)
• M61: 36,947,233 km (0.117 R)
• M62: 37,675,925 km (0.116 R)
• M63: 37,838,537 km (0.111 R)
• M64: 40,222,080 km (0.04 R)
• M65: 40,637,813 km (0.076 R)
• M66: 42,062,284 km (0.067 R)
• M67: 42,315,403 km (0.086 R)
• M68: 42,484,449 km (0.092 R)
• M69: 43,673,602 km (0.106 R)
• M70: 44,015,434 km (0.093 R)
• M71: 44,529,751 km (0.081 R)
• M72: 45,650,987 km (0.113 R)
• M73: 46,171,588 km (0.098 R)
• M74: 46,868,863 km (0.065 R)
• M75: 47,481,766 km (0.086 R)
• M76: 49,247,469 km (0.026 R)
• M77: 50,406,703 km (0.106 R)
• M78: 52,570,337 km (0.084 R)
• M79: 53,846,407 km (0.033 R)
• M80: 54,396,479 km (0.106 R)
• M81: 55,224,952 km (0.119 R)
• M82: 55,594,458 km (0.093 R)
• M83: 56,150,364 km (0.107 R)
• M84: 56,894,314 km (0.114 R)
• M85: 56,987,514 km (0.067 R)
• M86: 57,922,650 km (0.118 R)
• M87: 58,016,448 km (0.059 R)
• M88: 58,392,088 km (0.058 R)
• M89: 58,862,873 km (0.093 R)
• M90: 60,662,984 km (0.092 R)
• M91: 60,758,278 km (0.12 R)
• M92: 61,044,309 km (0.086 R)
• M93: 61,139,752 km (0.05 R)
• M94: 61,330,789 km (0.05 R)
• M95: 62,000,987 km (0.036 R)
• M96: 63,445,355 km (0.042 R)
• M97: 64,706,016 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 502.1

Radius: 5.2

Gravity: 18.57 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 13.47 AU - 15.15 AU

Year: 22680 Days

Day: 19.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 74,603,970 km

• M1: 76,893 km (0.079 R)
• M2: 201,658 km (0.119 R)
• M3: 259,852 km (0.1 R)
• M4: 531,970 km (0.048 R)
• M5: 660,923 km (0.1 R)
• M6: 776,263 km (0.088 R)
• M7: 1,328,579 km (0.065 R)
• M8: 1,386,473 km (0.083 R)
• M9: 1,688,511 km (0.092 R)
• M10: 2,144,635 km (0.041 R)
• M11: 2,457,295 km (0.069 R)
• M12: 2,933,764 km (0.108 R)
• M13: 3,047,757 km (0.107 R)
• M14: 3,124,501 km (0.06 R)
• M15: 4,011,168 km (0.117 R)
• M16: 4,095,391 km (0.093 R)
• M17: 4,222,998 km (0.096 R)
• M18: 4,351,802 km (0.119 R)
• M19: 4,395,036 km (0.115 R)
• M20: 6,335,619 km (0.114 R)
• M21: 7,084,656 km (0.113 R)
• M22: 7,495,601 km (0.074 R)
• M23: 7,914,176 km (0.086 R)
• M24: 8,073,049 km (0.101 R)
• M25: 8,394,086 km (0.05 R)
• M26: 8,556,250 km (0.106 R)
• M27: 9,048,726 km (0.044 R)
• M28: 9,159,429 km (0.114 R)
• M29: 9,832,918 km (0.077 R)
• M30: 11,049,448 km (0.077 R)
• M31: 11,108,539 km (0.094 R)
• M32: 11,465,480 km (0.092 R)
• M33: 12,682,010 km (0.115 R)
• M34: 14,131,015 km (0.085 R)
• M35: 14,517,426 km (0.061 R)
• M36: 15,432,816 km (0.05 R)
• M37: 18,569,284 km (0.102 R)
• M38: 18,710,056 km (0.1 R)
• M39: 18,992,497 km (0.095 R)
• M40: 21,082,529 km (0.076 R)
• M41: 21,450,091 km (0.102 R)
• M42: 21,671,795 km (0.07 R)
• M43: 21,819,897 km (0.118 R)
• M44: 21,894,097 km (0.113 R)
• M45: 22,415,895 km (0.112 R)
• M46: 23,471,756 km (0.043 R)
• M47: 24,852,993 km (0.069 R)
• M48: 24,930,485 km (0.107 R)
• M49: 25,008,126 km (0.036 R)
• M50: 25,631,650 km (0.104 R)
• M51: 26,102,734 km (0.086 R)
• M52: 27,934,560 km (0.115 R)
• M53: 28,825,415 km (0.041 R)
• M54: 29,725,396 km (0.115 R)
• M55: 30,302,844 km (0.1 R)
• M56: 30,385,721 km (0.119 R)
• M57: 31,720,882 km (0.025 R)
• M58: 32,734,707 km (0.059 R)
• M59: 33,587,564 km (0.111 R)
• M60: 35,054,371 km (0.037 R)
• M61: 35,228,354 km (0.088 R)
• M62: 35,315,420 km (0.097 R)
• M63: 35,489,851 km (0.116 R)
• M64: 36,190,118 km (0.102 R)
• M65: 38,228,838 km (0.091 R)
• M66: 40,122,448 km (0.068 R)
• M67: 40,669,228 km (0.095 R)
• M68: 40,851,887 km (0.073 R)
• M69: 41,401,809 km (0.027 R)
• M70: 42,973,335 km (0.046 R)
• M71: 43,066,385 km (0.113 R)
• M72: 43,159,434 km (0.045 R)
• M73: 44,000,474 km (0.093 R)
• M74: 44,094,272 km (0.087 R)
• M75: 47,130,061 km (0.097 R)
• M76: 48,382,495 km (0.082 R)
• M77: 50,232,721 km (0.084 R)
• M78: 50,526,980 km (0.103 R)
• M79: 50,723,402 km (0.051 R)
• M80: 50,920,123 km (0.108 R)
• M81: 52,403,685 km (0.104 R)
• M82: 52,901,397 km (0.119 R)
• M83: 55,818,706 km (0.114 R)
• M84: 57,758,092 km (0.071 R)
• M85: 58,169,187 km (0.119 R)
• M86: 58,478,256 km (0.06 R)
• M87: 59,201,263 km (0.118 R)
• M88: 59,408,456 km (0.105 R)
• M89: 62,123,059 km (0.104 R)
• M90: 65,519,080 km (0.107 R)
• M91: 66,916,025 km (0.07 R)
• M92: 67,131,745 km (0.114 R)
• M93: 68,757,276 km (0.055 R)
• M94: 72,268,338 km (0.081 R)
• M95: 74,380,510 km (0.098 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 236 - 12,040 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit