🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.6

Radius: 9.5

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.7 AU - 0.84 AU

Year: 466 Days

Day: 14 Hours

Environment

Temp: -166 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 84,976,985 km

• M1: 118,182 km (0.048 R)
• M2: 912,697 km (0.045 R)
• M3: 1,400,834 km (0.092 R)
• M4: 1,716,037 km (0.08 R)
• M5: 2,399,550 km (0.118 R)
• M6: 3,359,819 km (0.108 R)
• M7: 3,735,160 km (0.105 R)
• M8: 4,101,824 km (0.04 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 905.4

Radius: 8.6

Gravity: 12.24 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.9 AU - 1.38 AU

Year: 840 Days

Day: 14.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 124.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 84,976,985 km

• M1: 118,781 km (0.112 R)
• M2: 390,151 km (0.116 R)
• M3: 659,128 km (0.119 R)
• M4: 928,704 km (0.089 R)
• M5: 1,741,020 km (0.097 R)
• M6: 2,167,823 km (0.102 R)
• M7: 2,687,526 km (0.093 R)
• M8: 4,103,619 km (0.105 R)
• M9: 6,260,072 km (0.085 R)
• M10: 9,765,001 km (0.115 R)
• M11: 10,060,906 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.4

Radius: 9.5

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 1.01 AU - 1.59 AU

Year: 1023 Days

Day: 6 Hours

Environment

Temp: -196 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 84,976,985 km

• M1: 119,230 km (0.108 R)
• M2: 450,290 km (0.086 R)
• M3: 863,180 km (0.032 R)
• M4: 1,518,568 km (0.111 R)
• M5: 2,005,060 km (0.053 R)
• M6: 2,428,871 km (0.061 R)
• M7: 3,445,837 km (0.056 R)
• M8: 5,764,904 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 524.5

Radius: 11.6

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.94 AU - 2.4 AU

Year: 2206 Days

Day: 6.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 84,976,985 km

• M1: 144,512 km (0.115 R)
• M2: 564,134 km (0.114 R)
• M3: 981,063 km (0.038 R)
• M4: 1,580,651 km (0.096 R)
• M5: 1,999,675 km (0.073 R)
• M6: 2,587,744 km (0.098 R)
• M7: 2,960,841 km (0.099 R)
• M8: 3,503,582 km (0.112 R)
• M9: 4,623,771 km (0.104 R)
• M10: 6,116,459 km (0.084 R)
• M11: 6,919,201 km (0.068 R)
• M12: 7,416,763 km (0.078 R)
• M13: 9,283,146 km (0.107 R)
• M14: 10,166,970 km (0.086 R)
• M15: 10,701,783 km (0.111 R)
• M16: 12,260,293 km (0.114 R)
• M17: 13,240,010 km (0.079 R)
• M18: 13,706,157 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 918.5

Radius: 14.5

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.41 AU - 2.67 AU

Year: 2794 Days

Day: 14.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 84,976,985 km

• M1: 180,265 km (0.078 R)
• M2: 631,303 km (0.11 R)
• M3: 1,200,074 km (0.053 R)
• M4: 2,263,565 km (0.043 R)
• M5: 2,981,635 km (0.112 R)
• M6: 3,650,786 km (0.025 R)
• M7: 4,667,005 km (0.05 R)
• M8: 5,118,491 km (0.108 R)
• M9: 5,573,269 km (0.114 R)
• M10: 7,226,924 km (0.104 R)
• M11: 8,615,042 km (0.104 R)
• M12: 11,021,174 km (0.086 R)
• M13: 11,697,656 km (0.119 R)
• M14: 12,356,934 km (0.099 R)
• M15: 12,856,142 km (0.08 R)
• M16: 13,653,947 km (0.117 R)
• M17: 15,400,652 km (0.101 R)
• M18: 17,404,665 km (0.028 R)
• M19: 21,467,444 km (0.111 R)
• M20: 22,323,293 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 674.2

Radius: 8

Gravity: 10.53 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 2.12 AU - 2.98 AU

Year: 2811 Days

Day: 5.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 84,976,985 km

• M1: 99,483 km (0.09 R)
• M2: 413,788 km (0.107 R)
• M3: 1,010,384 km (0.025 R)
• M4: 1,279,511 km (0.102 R)
• M5: 1,798,615 km (0.09 R)
• M6: 2,962,187 km (0.073 R)
• M7: 4,323,528 km (0.12 R)
• M8: 5,537,216 km (0.111 R)
• M9: 6,277,875 km (0.102 R)
• M10: 6,529,349 km (0.077 R)
• M11: 7,698,606 km (0.047 R)
• M12: 7,987,180 km (0.106 R)
• M13: 10,406,626 km (0.098 R)
• M14: 11,366,147 km (0.078 R)
• M15: 11,782,777 km (0.118 R)
• M16: 13,185,108 km (0.114 R)
• M17: 14,021,210 km (0.078 R)
• M18: 14,403,881 km (0.105 R)
• M19: 15,391,227 km (0.065 R)
• M20: 15,695,958 km (0.092 R)
• M21: 17,999,765 km (0.075 R)
• M22: 20,094,584 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.6

Radius: 12.3

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 3.36 AU - 3.58 AU

Year: 4462 Days

Day: 11.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 84,976,985 km

• M1: 153,039 km (0.097 R)
• M2: 581,038 km (0.11 R)
• M3: 1,261,110 km (0.043 R)
• M4: 1,943,426 km (0.097 R)
• M5: 2,740,035 km (0.108 R)
• M6: 5,292,174 km (0.111 R)
• M7: 7,265,221 km (0.042 R)
• M8: 9,172,893 km (0.116 R)
• M9: 11,037,929 km (0.097 R)
• M10: 11,666,689 km (0.088 R)
• M11: 20,446,588 km (0.091 R)
• M12: 23,822,414 km (0.109 R)
• M13: 26,190,249 km (0.058 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577.8

Radius: 9.5

Gravity: 6.4 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 4.61 AU - 5.07 AU

Year: 7350 Days

Day: 7.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 84,976,985 km

• M1: 118,332 km (0.097 R)
• M2: 434,881 km (0.036 R)
• M3: 1,202,916 km (0.099 R)
• M4: 2,119,652 km (0.111 R)
• M5: 2,881,255 km (0.07 R)
• M6: 4,058,441 km (0.107 R)
• M7: 4,577,545 km (0.072 R)
• M8: 4,909,802 km (0.049 R)
• M9: 6,820,167 km (0.028 R)
• M10: 9,984,012 km (0.104 R)
• M11: 12,039,487 km (0.084 R)
• M12: 13,221,909 km (0.072 R)
• M13: 13,557,307 km (0.067 R)
• M14: 13,955,985 km (0.041 R)
• M15: 16,004,429 km (0.047 R)
• M16: 21,217,017 km (0.105 R)
• M17: 24,412,727 km (0.112 R)
• M18: 27,916,010 km (0.088 R)
• M19: 33,674,181 km (0.054 R)
• M20: 35,148,169 km (0.104 R)
• M21: 35,577,066 km (0.08 R)
• M22: 36,009,554 km (0.101 R)
• M23: 36,554,988 km (0.064 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 176.6

Radius: 7.6

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 6.95 AU - 9.91 AU

Year: 16895 Days

Day: 21.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 84,976,985 km

• M1: 94,845 km (0.067 R)
• M2: 400,174 km (0.063 R)
• M3: 662,120 km (0.052 R)
• M4: 1,457,083 km (0.093 R)
• M5: 1,945,820 km (0.082 R)
• M6: 2,482,726 km (0.113 R)
• M7: 3,027,263 km (0.08 R)
• M8: 3,551,603 km (0.098 R)
• M9: 4,297,498 km (0.074 R)
• M10: 6,669,671 km (0.117 R)
• M11: 10,041,009 km (0.105 R)
• M12: 10,636,558 km (0.037 R)
• M13: 11,046,606 km (0.092 R)
• M14: 11,414,018 km (0.111 R)
• M15: 14,034,375 km (0.102 R)
• M16: 14,841,904 km (0.097 R)
• M17: 15,745,924 km (0.025 R)
• M18: 16,617,780 km (0.083 R)
• M19: 17,805,887 km (0.066 R)
• M20: 19,654,467 km (0.027 R)
• M21: 21,222,852 km (0.092 R)
• M22: 24,784,478 km (0.115 R)
• M23: 25,870,857 km (0.117 R)
• M24: 26,800,309 km (0.101 R)
• M25: 27,944,583 km (0.084 R)
• M26: 29,721,806 km (0.078 R)
• M27: 32,633,878 km (0.093 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 710.1

Radius: 5.2

Gravity: 26.26 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 9 AU - 11.82 AU

Year: 23184 Days

Day: 23.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 84,976,985 km

• M1: 67,169 km (0.083 R)
• M2: 246,986 km (0.07 R)
• M3: 453,132 km (0.078 R)
• M4: 647,011 km (0.072 R)
• M5: 1,019,061 km (0.054 R)
• M6: 1,644,829 km (0.095 R)
• M7: 3,643,157 km (0.061 R)
• M8: 4,687,350 km (0.078 R)
• M9: 7,597,777 km (0.045 R)
• M10: 8,880,578 km (0.105 R)
• M11: 9,691,997 km (0.119 R)
• M12: 11,394,720 km (0.099 R)
• M13: 12,563,528 km (0.112 R)
• M14: 12,994,520 km (0.118 R)
• M15: 14,038,414 km (0.093 R)
• M16: 14,424,376 km (0.082 R)
• M17: 14,817,370 km (0.098 R)
• M18: 20,596,784 km (0.12 R)
• M19: 21,499,608 km (0.083 R)
• M20: 24,255,350 km (0.048 R)
• M21: 29,189,537 km (0.093 R)
• M22: 29,439,963 km (0.086 R)
• M23: 37,192,125 km (0.077 R)
• M24: 40,205,176 km (0.051 R)
• M25: 40,670,724 km (0.063 R)
• M26: 47,054,065 km (0.064 R)
• M27: 51,844,189 km (0.103 R)
• M28: 54,451,381 km (0.094 R)
• M29: 58,325,517 km (0.107 R)
• M30: 60,735,988 km (0.082 R)
• M31: 67,051,112 km (0.087 R)
• M32: 71,042,682 km (0.06 R)
• M33: 71,495,665 km (0.11 R)
• M34: 74,487,622 km (0.084 R)
• M35: 83,962,104 km (0.099 R)
• M36: 84,468,493 km (0.111 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 190 - 16,099 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit