🌌 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: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29

Radius: 10.6

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.49 AU - 0.53 AU

Year: 256 Days

Day: 12.1 Hours

Environment

Temp: -142 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 42,727,782 km

• M1: 131,945 km (0.046 R)
• M2: 738,864 km (0.113 R)
• M3: 1,234,631 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.2

Radius: 11.4

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.49 AU - 0.61 AU

Year: 287 Days

Day: 5.1 Hours

Environment

Temp: -145 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 42,727,782 km

• M1: 141,819 km (0.078 R)
• M2: 505,790 km (0.112 R)
• M3: 933,790 km (0.113 R)
• M4: 1,523,954 km (0.081 R)
• M5: 2,006,257 km (0.083 R)
• M6: 2,826,951 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.8

Radius: 9.7

Gravity: 6.95 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.53 AU - 0.87 AU

Year: 412 Days

Day: 5.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 42,727,782 km

• M1: 139,276 km (0.075 R)
• M2: 478,264 km (0.097 R)
• M3: 780,452 km (0.04 R)
• M4: 1,156,541 km (0.119 R)
• M5: 1,490,892 km (0.037 R)
• M6: 1,898,098 km (0.113 R)
• M7: 2,297,973 km (0.111 R)
• M8: 3,280,382 km (0.114 R)
• M9: 3,834,642 km (0.069 R)
• M10: 4,650,250 km (0.053 R)
• M11: 5,037,858 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 92.4

Radius: 12.8

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.65 AU - 0.75 AU

Year: 412 Days

Day: 8 Hours

Environment

Temp: -164 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 42,727,782 km

• M1: 159,322 km (0.063 R)
• M2: 675,135 km (0.116 R)
• M3: 1,185,114 km (0.093 R)
• M4: 1,599,650 km (0.097 R)
• M5: 2,132,966 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 983.7

Radius: 11

Gravity: 8.13 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.9 AU - 1.34 AU

Year: 833 Days

Day: 11.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 42,727,782 km

• M1: 136,732 km (0.106 R)
• M2: 543,938 km (0.067 R)
• M3: 907,311 km (0.076 R)
• M4: 1,401,582 km (0.084 R)
• M5: 2,153,910 km (0.107 R)
• M6: 2,855,524 km (0.117 R)
• M7: 3,225,779 km (0.077 R)
• M8: 3,673,376 km (0.08 R)
• M9: 4,605,221 km (0.096 R)
• M10: 4,948,847 km (0.092 R)
• M11: 5,688,010 km (0.062 R)
• M12: 6,300,314 km (0.086 R)
• M13: 6,839,914 km (0.112 R)
• M14: 7,656,868 km (0.089 R)
• M15: 8,974,975 km (0.029 R)
• M16: 10,013,782 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.3

Radius: 14.9

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 3.05 AU - 3.19 AU

Year: 3874 Days

Day: 6.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,727,782 km

• M1: 185,801 km (0.09 R)
• M2: 747,989 km (0.119 R)
• M3: 1,366,277 km (0.12 R)
• M4: 1,882,091 km (0.103 R)
• M5: 3,073,937 km (0.096 R)
• M6: 3,884,458 km (0.049 R)
• M7: 5,255,224 km (0.112 R)
• M8: 5,912,108 km (0.081 R)
• M9: 6,669,821 km (0.093 R)
• M10: 8,488,931 km (0.092 R)
• M11: 9,602,987 km (0.044 R)
• M12: 10,304,451 km (0.099 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 468

Radius: 3.3

Gravity: 42.98 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 4.73 AU - 6.27 AU

Year: 9067 Days

Day: 19.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 42,727,782 km

• M1: 41,439 km (0.059 R)
• M2: 224,995 km (0.093 R)
• M3: 396,584 km (0.114 R)
• M4: 580,440 km (0.113 R)
• M5: 899,083 km (0.112 R)
• M6: 1,065,586 km (0.119 R)
• M7: 1,793,678 km (0.071 R)
• M8: 1,993,840 km (0.106 R)
• M9: 2,313,232 km (0.109 R)
• M10: 2,783,867 km (0.107 R)
• M11: 3,383,455 km (0.075 R)
• M12: 4,090,604 km (0.088 R)
• M13: 4,774,865 km (0.107 R)
• M14: 4,920,274 km (0.097 R)
• M15: 5,312,520 km (0.11 R)
• M16: 8,237,607 km (0.084 R)
• M17: 8,574,501 km (0.107 R)
• M18: 9,547,934 km (0.093 R)
• M19: 9,732,538 km (0.085 R)
• M20: 10,740,978 km (0.085 R)
• M21: 12,518,051 km (0.105 R)
• M22: 14,725,367 km (0.078 R)
• M23: 14,848,337 km (0.096 R)
• M24: 16,114,982 km (0.066 R)
• M25: 19,445,479 km (0.064 R)
• M26: 24,474,660 km (0.031 R)
• M27: 25,257,207 km (0.117 R)
• M28: 27,985,872 km (0.106 R)
• M29: 30,305,537 km (0.089 R)
• M30: 30,804,296 km (0.085 R)
• M31: 32,749,966 km (0.062 R)
• M32: 34,234,874 km (0.117 R)
• M33: 35,764,064 km (0.089 R)
• M34: 36,883,804 km (0.111 R)
• M35: 38,957,978 km (0.079 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 148.1

Radius: 3

Gravity: 16.46 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 6.55 AU - 10.89 AU

Year: 18100 Days

Day: 19.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 42,727,782 km

• M1: 37,549 km (0.116 R)
• M2: 416,032 km (0.08 R)
• M3: 796,309 km (0.059 R)
• M4: 1,213,089 km (0.119 R)
• M5: 1,410,110 km (0.083 R)
• M6: 1,585,438 km (0.11 R)
• M7: 1,852,022 km (0.111 R)
• M8: 2,045,751 km (0.107 R)
• M9: 2,182,184 km (0.091 R)
• M10: 2,688,423 km (0.113 R)
• M11: 3,431,476 km (0.118 R)
• M12: 3,979,603 km (0.111 R)
• M13: 5,568,033 km (0.097 R)
• M14: 6,321,258 km (0.117 R)
• M15: 6,611,179 km (0.063 R)
• M16: 7,101,261 km (0.09 R)
• M17: 8,068,711 km (0.118 R)
• M18: 8,627,908 km (0.113 R)
• M19: 9,304,688 km (0.059 R)
• M20: 10,560,114 km (0.093 R)
• M21: 10,916,605 km (0.115 R)
• M22: 11,761,235 km (0.094 R)
• M23: 12,088,854 km (0.066 R)
• M24: 16,037,939 km (0.075 R)
• M25: 16,508,574 km (0.09 R)
• M26: 17,547,830 km (0.117 R)
• M27: 20,140,661 km (0.116 R)
• M28: 23,232,699 km (0.1 R)
• M29: 24,624,109 km (0.085 R)
• M30: 25,612,203 km (0.054 R)
• M31: 26,813,773 km (0.068 R)
• M32: 26,907,720 km (0.08 R)
• M33: 31,470,904 km (0.086 R)
• M34: 32,420,252 km (0.054 R)
• M35: 35,044,648 km (0.093 R)
• M36: 40,835,432 km (0.066 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 231 - 14,782 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit