🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 868.2

Radius: 12.5

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.65 AU - 0.85 AU

Year: 433 Days

Day: 6.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 61,018,017 km

• M1: 156,479 km (0.116 R)
• M2: 698,173 km (0.073 R)
• M3: 1,111,363 km (0.116 R)
• M4: 1,551,480 km (0.094 R)
• M5: 2,465,971 km (0.061 R)
• M6: 3,460,498 km (0.086 R)
• M7: 3,895,080 km (0.113 R)
• M8: 4,541,193 km (0.068 R)
• M9: 6,084,744 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 446.3

Radius: 8.1

Gravity: 6.8 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.65 AU - 0.87 AU

Year: 442 Days

Day: 8.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 85.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 61,018,017 km

• M1: 100,679 km (0.082 R)
• M2: 593,156 km (0.097 R)
• M3: 1,029,084 km (0.072 R)
• M4: 1,320,351 km (0.082 R)
• M5: 1,766,452 km (0.065 R)
• M6: 2,025,406 km (0.087 R)
• M7: 2,797,181 km (0.091 R)
• M8: 3,239,243 km (0.065 R)
• M9: 3,715,114 km (0.113 R)
• M10: 4,196,968 km (0.034 R)
• M11: 4,564,231 km (0.115 R)
• M12: 4,879,135 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.7

Radius: 14.2

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.68 AU - 0.9 AU

Year: 468 Days

Day: 8.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 61,018,017 km

• M1: 176,675 km (0.09 R)
• M2: 629,508 km (0.105 R)
• M3: 1,087,277 km (0.079 R)
• M4: 1,579,604 km (0.046 R)
• M5: 2,054,876 km (0.109 R)
• M6: 2,807,952 km (0.102 R)
• M7: 3,471,867 km (0.108 R)
• M8: 3,934,125 km (0.087 R)
• M9: 4,614,945 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.6

Radius: 9.3

Gravity: 5.89 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.8 AU - 1.32 AU

Year: 728 Days

Day: 11.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 61,018,017 km

• M1: 122,221 km (0.099 R)
• M2: 472,280 km (0.117 R)
• M3: 836,551 km (0.086 R)
• M4: 2,739,137 km (0.041 R)
• M5: 3,112,234 km (0.106 R)
• M6: 4,518,604 km (0.118 R)
• M7: 5,024,843 km (0.12 R)
• M8: 7,261,929 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.3

Radius: 11.1

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.94 AU - 1.54 AU

Year: 921 Days

Day: 5 Hours

Environment

Temp: -176 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 61,018,017 km

• M1: 153,188 km (0.101 R)
• M2: 547,528 km (0.119 R)
• M3: 2,199,537 km (0.031 R)
• M4: 3,025,467 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439.4

Radius: 12.1

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 1.54 AU - 2.1 AU

Year: 1637 Days

Day: 9.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 61,018,017 km

• M1: 151,243 km (0.079 R)
• M2: 550,969 km (0.105 R)
• M3: 986,598 km (0.111 R)
• M4: 1,493,735 km (0.097 R)
• M5: 2,139,848 km (0.049 R)
• M6: 2,660,598 km (0.056 R)
• M7: 5,708,356 km (0.107 R)
• M8: 9,605,530 km (0.108 R)
• M9: 11,099,264 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.2

Radius: 11.9

Gravity: 6.82 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 2.41 AU - 2.61 AU

Year: 2652 Days

Day: 6.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 61,018,017 km

• M1: 148,401 km (0.064 R)
• M2: 737,069 km (0.111 R)
• M3: 1,193,492 km (0.095 R)
• M4: 1,590,525 km (0.042 R)
• M5: 1,999,974 km (0.114 R)
• M6: 2,853,729 km (0.094 R)
• M7: 4,743,898 km (0.108 R)
• M8: 5,400,782 km (0.112 R)
• M9: 7,610,941 km (0.087 R)
• M10: 8,170,437 km (0.095 R)
• M11: 10,407,225 km (0.086 R)
• M12: 11,264,121 km (0.066 R)
• M13: 14,611,374 km (0.102 R)
• M14: 16,268,768 km (0.099 R)
• M15: 16,811,510 km (0.102 R)
• M16: 17,933,344 km (0.103 R)
• M17: 18,395,751 km (0.059 R)
• M18: 19,586,700 km (0.045 R)
• M19: 20,077,231 km (0.057 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 390

Radius: 5.1

Gravity: 14.99 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 8.76 AU - 9.92 AU

Year: 19035 Days

Day: 21.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 61,018,017 km

• M1: 71,957 km (0.095 R)
• M2: 488,138 km (0.11 R)
• M3: 1,489,396 km (0.089 R)
• M4: 2,214,348 km (0.08 R)
• M5: 2,523,118 km (0.041 R)
• M6: 3,329,600 km (0.084 R)
• M7: 4,082,675 km (0.09 R)
• M8: 6,074,272 km (0.071 R)
• M9: 6,720,535 km (0.111 R)
• M10: 7,278,684 km (0.117 R)
• M11: 8,007,226 km (0.052 R)
• M12: 10,883,095 km (0.103 R)
• M13: 12,582,228 km (0.08 R)
• M14: 12,968,041 km (0.066 R)
• M15: 13,428,054 km (0.057 R)
• M16: 15,967,478 km (0.062 R)
• M17: 18,151,158 km (0.038 R)
• M18: 20,000,637 km (0.038 R)
• M19: 20,437,762 km (0.111 R)
• M20: 28,108,542 km (0.112 R)
• M21: 29,888,757 km (0.083 R)
• M22: 30,806,390 km (0.088 R)
• M23: 31,742,723 km (0.08 R)
• M24: 36,971,169 km (0.115 R)
• M25: 40,758,389 km (0.109 R)
• M26: 59,028,627 km (0.095 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 157 - 16,893 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit