🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 579.6

Radius: 8.8

Gravity: 7.48 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.57 AU - 0.75 AU

Year: 370 Days

Day: 8.1 Hours

Environment

Temp: -159 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,227,742 km

• M1: 109,655 km (0.079 R)
• M2: 537,655 km (0.119 R)
• M3: 859,440 km (0.099 R)
• M4: 1,146,967 km (0.117 R)
• M5: 1,525,449 km (0.101 R)
• M6: 2,204,025 km (0.103 R)
• M7: 2,603,003 km (0.103 R)
• M8: 2,936,008 km (0.036 R)
• M9: 3,772,410 km (0.072 R)
• M10: 4,745,244 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445

Radius: 11.4

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.84 AU - 1.32 AU

Year: 775 Days

Day: 8.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,227,742 km

• M1: 142,118 km (0.098 R)
• M2: 519,853 km (0.039 R)
• M3: 970,741 km (0.11 R)
• M4: 1,805,497 km (0.12 R)
• M5: 3,227,424 km (0.074 R)
• M6: 4,119,626 km (0.086 R)
• M7: 5,395,546 km (0.039 R)
• M8: 6,000,520 km (0.092 R)
• M9: 6,488,508 km (0.044 R)
• M10: 6,981,882 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 676.5

Radius: 8.7

Gravity: 8.94 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.16 AU - 1.6 AU

Year: 1119 Days

Day: 10.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 66,227,742 km

• M1: 108,309 km (0.11 R)
• M2: 381,475 km (0.119 R)
• M3: 956,678 km (0.05 R)
• M4: 1,455,737 km (0.109 R)
• M5: 1,827,039 km (0.103 R)
• M6: 2,216,741 km (0.116 R)
• M7: 2,538,825 km (0.072 R)
• M8: 3,468,875 km (0.111 R)
• M9: 4,103,470 km (0.043 R)
• M10: 4,592,206 km (0.032 R)
• M11: 5,080,194 km (0.119 R)
• M12: 5,458,527 km (0.092 R)
• M13: 5,834,018 km (0.046 R)
• M14: 6,116,010 km (0.038 R)
• M15: 7,114,127 km (0.089 R)
• M16: 7,411,079 km (0.085 R)
• M17: 7,898,319 km (0.047 R)
• M18: 9,195,781 km (0.113 R)
• M19: 9,548,682 km (0.082 R)
• M20: 10,312,978 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.6

Radius: 14.7

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.8 AU - 1.92 AU

Year: 1751 Days

Day: 10.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,227,742 km

• M1: 182,958 km (0.036 R)
• M2: 1,113,008 km (0.1 R)
• M3: 1,953,898 km (0.116 R)
• M4: 2,569,942 km (0.101 R)
• M5: 3,409,335 km (0.104 R)
• M6: 4,000,247 km (0.119 R)
• M7: 6,028,794 km (0.102 R)
• M8: 7,295,739 km (0.062 R)
• M9: 12,512,815 km (0.11 R)
• M10: 13,431,196 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444.6

Radius: 14.5

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 2.41 AU - 2.43 AU

Year: 2599 Days

Day: 13.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,227,742 km

• M1: 180,415 km (0.077 R)
• M2: 733,329 km (0.072 R)
• M3: 1,392,756 km (0.106 R)
• M4: 2,517,732 km (0.12 R)
• M5: 3,755,804 km (0.104 R)
• M6: 5,119,389 km (0.104 R)
• M7: 6,846,197 km (0.088 R)
• M8: 7,636,223 km (0.118 R)
• M9: 8,299,091 km (0.08 R)
• M10: 10,704,027 km (0.05 R)
• M11: 11,967,082 km (0.111 R)
• M12: 13,803,096 km (0.094 R)
• M13: 14,651,466 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888.1

Radius: 14

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 2.19 AU - 3.31 AU

Year: 3148 Days

Day: 8 Hours

Environment

Temp: -205 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 66,227,742 km

• M1: 175,927 km (0.077 R)
• M2: 809,474 km (0.034 R)
• M3: 1,266,645 km (0.056 R)
• M4: 1,781,112 km (0.05 R)
• M5: 2,275,832 km (0.057 R)
• M6: 2,913,419 km (0.094 R)
• M7: 3,892,387 km (0.028 R)
• M8: 5,055,660 km (0.112 R)
• M9: 5,570,875 km (0.08 R)
• M10: 6,178,242 km (0.103 R)
• M11: 7,493,507 km (0.099 R)
• M12: 9,286,737 km (0.117 R)
• M13: 10,223,369 km (0.11 R)
• M14: 10,840,011 km (0.104 R)
• M15: 11,656,816 km (0.066 R)
• M16: 13,029,825 km (0.113 R)
• M17: 15,340,663 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.4

Radius: 12.7

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 3.69 AU - 4.59 AU

Year: 5814 Days

Day: 14.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 66,227,742 km

• M1: 158,125 km (0.061 R)
• M2: 553,363 km (0.088 R)
• M3: 1,297,762 km (0.049 R)
• M4: 1,905,727 km (0.092 R)
• M5: 3,201,694 km (0.091 R)
• M6: 4,374,092 km (0.093 R)
• M7: 5,695,640 km (0.073 R)
• M8: 6,627,186 km (0.1 R)
• M9: 7,876,029 km (0.102 R)
• M10: 8,517,953 km (0.053 R)
• M11: 9,399,982 km (0.077 R)
• M12: 13,336,800 km (0.079 R)
• M13: 15,725,878 km (0.089 R)
• M14: 16,319,931 km (0.106 R)
• M15: 17,807,083 km (0.102 R)
• M16: 18,452,748 km (0.098 R)
• M17: 19,248,160 km (0.086 R)
• M18: 20,907,200 km (0.076 R)
• M19: 21,553,313 km (0.034 R)
• M20: 22,361,142 km (0.096 R)
• M21: 23,036,875 km (0.055 R)
• M22: 26,873,761 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 644.4

Radius: 4.9

Gravity: 26.84 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 7.04 AU - 9.72 AU

Year: 16745 Days

Day: 24.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,227,742 km

• M1: 60,886 km (0.108 R)
• M2: 254,466 km (0.112 R)
• M3: 500,554 km (0.111 R)
• M4: 814,560 km (0.067 R)
• M5: 2,148,824 km (0.098 R)
• M6: 2,504,268 km (0.076 R)
• M7: 2,825,455 km (0.12 R)
• M8: 4,391,595 km (0.099 R)
• M9: 6,293,582 km (0.107 R)
• M10: 6,585,747 km (0.035 R)
• M11: 7,703,243 km (0.036 R)
• M12: 12,970,883 km (0.066 R)
• M13: 13,443,912 km (0.077 R)
• M14: 18,316,015 km (0.037 R)
• M15: 19,344,201 km (0.111 R)
• M16: 38,720,716 km (0.099 R)
• M17: 43,332,220 km (0.117 R)
• M18: 47,021,603 km (0.111 R)
• M19: 48,457,443 km (0.086 R)
• M20: 51,416,339 km (0.108 R)
• M21: 56,611,724 km (0.07 R)
• M22: 58,784,184 km (0.106 R)
• M23: 64,847,984 km (0.105 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: 373 - 14,442 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit