🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.18 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 854.3

Radius: 10.9

Gravity: 7.19 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 2.29 AU - 2.41 AU

Year: 2326 Days

Day: 12.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 45,240,129 km

• M1: 154,983 km (0.119 R)
• M2: 648,357 km (0.119 R)
• M3: 1,224,309 km (0.055 R)
• M4: 2,332,680 km (0.082 R)
• M5: 4,731,781 km (0.09 R)
• M6: 5,482,014 km (0.109 R)
• M7: 6,202,029 km (0.073 R)
• M8: 7,159,754 km (0.109 R)
• M9: 8,948,197 km (0.098 R)
• M10: 11,096,272 km (0.055 R)
• M11: 12,375,633 km (0.053 R)
• M12: 12,852,551 km (0.101 R)
• M13: 13,613,556 km (0.083 R)
• M14: 14,215,538 km (0.085 R)
• M15: 15,423,241 km (0.095 R)
• M16: 18,041,653 km (0.058 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 536.7

Radius: 9.3

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 2.48 AU - 3.26 AU

Year: 3139 Days

Day: 8.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 45,240,129 km

• M1: 115,639 km (0.086 R)
• M2: 468,241 km (0.108 R)
• M3: 762,201 km (0.112 R)
• M4: 1,395,150 km (0.093 R)
• M5: 2,304,555 km (0.119 R)
• M6: 3,223,535 km (0.065 R)
• M7: 4,434,081 km (0.068 R)
• M8: 5,023,197 km (0.066 R)
• M9: 5,561,750 km (0.082 R)
• M10: 6,003,811 km (0.108 R)
• M11: 6,385,286 km (0.033 R)
• M12: 6,754,045 km (0.093 R)
• M13: 8,076,041 km (0.105 R)
• M14: 11,306,009 km (0.065 R)
• M15: 12,059,234 km (0.093 R)
• M16: 13,205,902 km (0.087 R)
• M17: 13,852,613 km (0.082 R)
• M18: 17,134,940 km (0.105 R)
• M19: 18,753,888 km (0.085 R)
• M20: 19,511,751 km (0.033 R)
• M21: 19,868,392 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 106.9

Radius: 11.7

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 3.41 AU - 3.97 AU

Year: 4577 Days

Day: 14.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 45,240,129 km

• M1: 146,008 km (0.098 R)
• M2: 567,874 km (0.119 R)
• M3: 952,490 km (0.057 R)
• M4: 1,721,572 km (0.087 R)
• M5: 2,231,103 km (0.104 R)
• M6: 2,768,907 km (0.099 R)
• M7: 4,939,871 km (0.106 R)
• M8: 6,372,121 km (0.091 R)
• M9: 7,239,191 km (0.107 R)
• M10: 10,739,482 km (0.117 R)
• M11: 11,212,211 km (0.07 R)
• M12: 12,160,213 km (0.077 R)
• M13: 14,564,998 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 762.3

Radius: 13.7

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 3.39 AU - 5.03 AU

Year: 5577 Days

Day: 10.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 45,240,129 km

• M1: 170,392 km (0.11 R)
• M2: 627,563 km (0.113 R)
• M3: 1,486,554 km (0.074 R)
• M4: 2,633,671 km (0.076 R)
• M5: 3,736,506 km (0.1 R)
• M6: 4,356,140 km (0.092 R)
• M7: 5,591,071 km (0.092 R)
• M8: 6,051,084 km (0.066 R)
• M9: 7,622,610 km (0.081 R)
• M10: 8,583,477 km (0.08 R)
• M11: 10,017,971 km (0.115 R)
• M12: 10,792,738 km (0.098 R)
• M13: 12,054,447 km (0.083 R)
• M14: 15,517,638 km (0.048 R)
• M15: 17,966,405 km (0.062 R)
• M16: 22,757,726 km (0.082 R)
• M17: 23,539,225 km (0.105 R)
• M18: 29,982,405 km (0.04 R)
• M19: 31,112,019 km (0.078 R)
• M20: 31,880,802 km (0.099 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 890.5

Radius: 3.8

Gravity: 61.67 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 5.68 AU - 7.7 AU

Year: 11173 Days

Day: 24.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 45,240,129 km

• M1: 48,021 km (0.047 R)
• M2: 233,373 km (0.067 R)
• M3: 415,284 km (0.111 R)
• M4: 714,330 km (0.119 R)
• M5: 937,231 km (0.12 R)
• M6: 1,612,815 km (0.083 R)
• M7: 2,259,227 km (0.116 R)
• M8: 2,419,147 km (0.078 R)
• M9: 3,184,490 km (0.033 R)
• M10: 3,542,178 km (0.095 R)
• M11: 3,758,347 km (0.11 R)
• M12: 8,521,244 km (0.088 R)
• M13: 9,410,753 km (0.118 R)
• M14: 16,449,183 km (0.115 R)
• M15: 18,375,406 km (0.092 R)
• M16: 24,752,763 km (0.1 R)
• M17: 30,402,027 km (0.097 R)
• M18: 34,610,066 km (0.062 R)
• M19: 39,190,304 km (0.056 R)
• M20: 48,912,221 km (0.077 R)
• M21: 50,779,501 km (0.076 R)
• M22: 52,532,489 km (0.078 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 66.9

Radius: 6.4

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 6.28 AU - 9.9 AU

Year: 14857 Days

Day: 17.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 45,240,129 km

• M1: 79,736 km (0.027 R)
• M2: 442,211 km (0.059 R)
• M3: 1,927,718 km (0.067 R)
• M4: 2,691,415 km (0.117 R)
• M5: 3,577,035 km (0.074 R)
• M6: 4,370,801 km (0.12 R)
• M7: 4,874,198 km (0.095 R)
• M8: 6,943,585 km (0.054 R)
• M9: 7,246,371 km (0.115 R)
• M10: 8,699,864 km (0.12 R)
• M11: 9,211,489 km (0.09 R)
• M12: 12,365,610 km (0.11 R)
• M13: 15,031,145 km (0.033 R)
• M14: 20,013,951 km (0.099 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 241.6

Radius: 7.4

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 6.77 AU - 9.83 AU

Year: 15439 Days

Day: 23.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 45,240,129 km

• M1: 93,199 km (0.085 R)
• M2: 329,863 km (0.075 R)
• M3: 941,719 km (0.051 R)
• M4: 1,398,291 km (0.118 R)
• M5: 1,820,008 km (0.116 R)
• M6: 2,511,150 km (0.081 R)
• M7: 3,808,313 km (0.064 R)
• M8: 4,316,796 km (0.12 R)
• M9: 4,779,502 km (0.06 R)
• M10: 6,045,848 km (0.094 R)
• M11: 6,440,188 km (0.101 R)
• M12: 6,775,587 km (0.087 R)
• M13: 7,603,611 km (0.084 R)
• M14: 7,893,980 km (0.03 R)
• M15: 8,585,871 km (0.118 R)
• M16: 9,270,580 km (0.086 R)
• M17: 9,892,907 km (0.118 R)
• M18: 12,779,099 km (0.054 R)
• M19: 14,667,174 km (0.102 R)
• M20: 16,733,719 km (0.084 R)
• M21: 23,034,931 km (0.112 R)
• M22: 23,556,279 km (0.102 R)
• M23: 25,720,960 km (0.071 R)
• M24: 26,094,207 km (0.044 R)
• M25: 27,043,106 km (0.045 R)
• M26: 27,818,622 km (0.114 R)
• M27: 30,027,733 km (0.081 R)
• M28: 32,786,019 km (0.074 R)
• M29: 33,335,193 km (0.111 R)
• M30: 36,173,364 km (0.098 R)
• M31: 37,352,494 km (0.067 R)
• M32: 38,923,272 km (0.08 R)
• M33: 44,432,363 km (0.084 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 177 - 12,107 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit