🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 233.3

Radius: 8.6

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.45 AU - 0.59 AU

Year: 254 Days

Day: 11.3 Hours

Environment

Temp: -145 °C

Axial Tilt: 42.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 70,631,728 km

• M1: 107,112 km (0.044 R)
• M2: 398,230 km (0.064 R)
• M3: 724,353 km (0.085 R)
• M4: 1,147,565 km (0.083 R)
• M5: 1,455,587 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 803.3

Radius: 10.7

Gravity: 7.02 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.46 AU - 0.6 AU

Year: 262 Days

Day: 7.7 Hours

Environment

Temp: -150 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 70,631,728 km

• M1: 133,142 km (0.098 R)
• M2: 474,375 km (0.103 R)
• M3: 880,084 km (0.108 R)
• M4: 1,364,482 km (0.114 R)
• M5: 1,807,741 km (0.07 R)
• M6: 2,152,863 km (0.092 R)
• M7: 2,551,392 km (0.088 R)
• M8: 3,028,758 km (0.11 R)
• M9: 3,565,216 km (0.108 R)
• M10: 4,151,790 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 659

Radius: 12.1

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.48 AU - 0.7 AU

Year: 307 Days

Day: 12.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,631,728 km

• M1: 150,495 km (0.117 R)
• M2: 538,403 km (0.103 R)
• M3: 1,000,062 km (0.108 R)
• M4: 1,698,085 km (0.08 R)
• M5: 2,146,131 km (0.102 R)
• M6: 2,728,665 km (0.119 R)
• M7: 3,414,721 km (0.112 R)
• M8: 3,799,188 km (0.092 R)
• M9: 4,378,879 km (0.036 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 460.2

Radius: 11.1

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.55 AU - 1.57 AU

Year: 1322 Days

Day: 8.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 70,631,728 km

• M1: 138,079 km (0.109 R)
• M2: 500,405 km (0.089 R)
• M3: 917,783 km (0.06 R)
• M4: 1,305,241 km (0.05 R)
• M5: 1,784,852 km (0.108 R)
• M6: 2,426,178 km (0.093 R)
• M7: 3,159,956 km (0.048 R)
• M8: 3,624,906 km (0.096 R)
• M9: 4,151,939 km (0.069 R)
• M10: 6,511,846 km (0.113 R)
• M11: 7,391,780 km (0.087 R)
• M12: 7,821,874 km (0.065 R)
• M13: 8,295,352 km (0.112 R)
• M14: 9,242,156 km (0.075 R)
• M15: 9,922,528 km (0.088 R)
• M16: 10,290,538 km (0.109 R)
• M17: 10,731,403 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.4

Radius: 13.5

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.4 AU - 2.12 AU

Year: 1584 Days

Day: 5.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 70,631,728 km

• M1: 167,849 km (0.114 R)
• M2: 667,356 km (0.096 R)
• M3: 1,195,137 km (0.108 R)
• M4: 1,848,880 km (0.077 R)
• M5: 2,309,791 km (0.096 R)
• M6: 3,155,019 km (0.111 R)
• M7: 5,024,992 km (0.032 R)
• M8: 5,600,944 km (0.113 R)
• M9: 6,467,565 km (0.039 R)
• M10: 7,572,794 km (0.071 R)
• M11: 8,331,853 km (0.117 R)
• M12: 8,772,120 km (0.09 R)
• M13: 9,432,146 km (0.095 R)
• M14: 10,436,995 km (0.107 R)
• M15: 10,916,905 km (0.043 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567.2

Radius: 8.3

Gravity: 8.23 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.66 AU - 2.4 AU

Year: 1962 Days

Day: 9.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 132.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,631,728 km

• M1: 103,372 km (0.118 R)
• M2: 400,324 km (0.112 R)
• M3: 723,007 km (0.093 R)
• M4: 1,846,487 km (0.059 R)
• M5: 2,225,418 km (0.047 R)
• M6: 3,002,579 km (0.052 R)
• M7: 3,314,640 km (0.082 R)
• M8: 4,190,984 km (0.116 R)
• M9: 5,061,494 km (0.094 R)
• M10: 5,459,724 km (0.1 R)
• M11: 6,369,279 km (0.109 R)
• M12: 7,801,978 km (0.116 R)
• M13: 8,486,089 km (0.108 R)
• M14: 9,209,694 km (0.115 R)
• M15: 10,423,830 km (0.098 R)
• M16: 10,815,328 km (0.056 R)
• M17: 13,043,738 km (0.093 R)
• M18: 14,352,270 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.5

Radius: 12.1

Gravity: 4.98 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 2.01 AU - 2.79 AU

Year: 2522 Days

Day: 12.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 70,631,728 km

• M1: 151,692 km (0.061 R)
• M2: 585,227 km (0.081 R)
• M3: 1,282,951 km (0.06 R)
• M4: 1,905,428 km (0.104 R)
• M5: 2,737,491 km (0.11 R)
• M6: 3,136,020 km (0.075 R)
• M7: 3,518,991 km (0.096 R)
• M8: 4,234,368 km (0.046 R)
• M9: 4,682,264 km (0.044 R)
• M10: 5,256,720 km (0.084 R)
• M11: 6,409,371 km (0.033 R)
• M12: 8,006,777 km (0.108 R)
• M13: 8,796,355 km (0.064 R)
• M14: 10,039,812 km (0.102 R)
• M15: 11,518,886 km (0.084 R)
• M16: 12,439,213 km (0.036 R)
• M17: 13,543,694 km (0.042 R)
• M18: 14,953,953 km (0.078 R)
• M19: 16,151,035 km (0.075 R)
• M20: 16,720,554 km (0.072 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 951.8

Radius: 6.9

Gravity: 19.99 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 6.8 AU - 9.08 AU

Year: 15175 Days

Day: 24.5 Hours

Environment

Temp: -242 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 70,631,728 km

• M1: 85,869 km (0.059 R)
• M2: 358,885 km (0.067 R)
• M3: 641,775 km (0.064 R)
• M4: 989,740 km (0.105 R)
• M5: 1,398,590 km (0.092 R)
• M6: 1,896,901 km (0.101 R)
• M7: 2,187,420 km (0.082 R)
• M8: 3,776,299 km (0.118 R)
• M9: 4,533,414 km (0.07 R)
• M10: 5,463,165 km (0.103 R)
• M11: 5,694,742 km (0.084 R)
• M12: 6,952,411 km (0.079 R)
• M13: 7,985,534 km (0.11 R)
• M14: 8,642,119 km (0.07 R)
• M15: 11,951,374 km (0.053 R)
• M16: 15,553,391 km (0.106 R)
• M17: 17,062,086 km (0.047 R)
• M18: 18,148,914 km (0.098 R)
• M19: 18,492,391 km (0.056 R)
• M20: 25,122,270 km (0.071 R)
• M21: 33,051,106 km (0.088 R)
• M22: 35,935,054 km (0.069 R)
• M23: 36,613,181 km (0.112 R)
• M24: 39,698,488 km (0.116 R)
• M25: 40,132,172 km (0.101 R)
• M26: 41,156,469 km (0.116 R)
• M27: 42,197,969 km (0.114 R)
• M28: 44,024,409 km (0.117 R)
• M29: 46,861,683 km (0.117 R)
• M30: 49,818,485 km (0.107 R)
• M31: 55,198,323 km (0.086 R)
• M32: 61,144,988 km (0.041 R)
• M33: 70,420,355 km (0.098 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 499 - 10,538 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit