🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.5

Radius: 12.6

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.81 AU - 0.93 AU

Year: 516 Days

Day: 12.2 Hours

Environment

Temp: -142 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 53,030,434 km

• M1: 156,928 km (0.102 R)
• M2: 759,209 km (0.075 R)
• M3: 1,192,445 km (0.051 R)
• M4: 1,622,239 km (0.12 R)
• M5: 2,778,631 km (0.072 R)
• M6: 3,436,861 km (0.109 R)
• M7: 4,744,347 km (0.064 R)
• M8: 5,216,627 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.4

Radius: 11.3

Gravity: 7.26 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.8 AU - 1.26 AU

Year: 665 Days

Day: 6.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 53,030,434 km

• M1: 140,622 km (0.1 R)
• M2: 513,869 km (0.079 R)
• M3: 930,948 km (0.078 R)
• M4: 1,309,729 km (0.112 R)
• M5: 1,989,502 km (0.108 R)
• M6: 2,458,940 km (0.116 R)
• M7: 3,152,775 km (0.112 R)
• M8: 4,361,077 km (0.11 R)
• M9: 4,929,699 km (0.07 R)
• M10: 5,528,539 km (0.1 R)
• M11: 6,195,446 km (0.109 R)
• M12: 6,612,525 km (0.099 R)
• M13: 7,318,777 km (0.06 R)
• M14: 7,714,014 km (0.094 R)
• M15: 8,547,424 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 106.7

Radius: 10.1

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 1.17 AU - 1.33 AU

Year: 889 Days

Day: 7 Hours

Environment

Temp: -165 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 53,030,434 km

• M1: 148,102 km (0.1 R)
• M2: 665,860 km (0.052 R)
• M3: 1,048,531 km (0.085 R)
• M4: 1,408,464 km (0.11 R)
• M5: 1,881,044 km (0.079 R)
• M6: 2,827,699 km (0.101 R)
• M7: 3,390,636 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 685.7

Radius: 14.6

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.21 AU - 1.53 AU

Year: 1020 Days

Day: 8.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,030,434 km

• M1: 181,761 km (0.097 R)
• M2: 653,443 km (0.064 R)
• M3: 1,311,674 km (0.051 R)
• M4: 1,929,962 km (0.117 R)
• M5: 2,504,119 km (0.066 R)
• M6: 2,992,556 km (0.065 R)
• M7: 4,416,428 km (0.106 R)
• M8: 4,876,143 km (0.05 R)
• M9: 5,830,577 km (0.115 R)
• M10: 6,363,893 km (0.102 R)
• M11: 7,677,961 km (0.092 R)
• M12: 8,452,878 km (0.052 R)
• M13: 9,025,838 km (0.046 R)
• M14: 9,595,656 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 252.9

Radius: 14.6

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.28 AU - 1.82 AU

Year: 1227 Days

Day: 12.2 Hours

Environment

Temp: -183 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 53,030,434 km

• M1: 185,352 km (0.114 R)
• M2: 1,617,452 km (0.06 R)
• M3: 2,592,232 km (0.119 R)
• M4: 3,105,502 km (0.113 R)
• M5: 3,771,811 km (0.078 R)
• M6: 4,293,908 km (0.078 R)
• M7: 4,864,175 km (0.11 R)
• M8: 6,443,031 km (0.117 R)
• M9: 7,017,038 km (0.089 R)
• M10: 8,391,393 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 586.9

Radius: 12.4

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 2.89 AU - 4.51 AU

Year: 4525 Days

Day: 9.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 53,030,434 km

• M1: 154,684 km (0.112 R)
• M2: 612,454 km (0.083 R)
• M3: 1,430,305 km (0.113 R)
• M4: 2,335,223 km (0.098 R)
• M5: 7,413,622 km (0.115 R)
• M6: 8,178,366 km (0.098 R)
• M7: 9,865,381 km (0.077 R)
• M8: 13,814,167 km (0.092 R)
• M9: 14,597,012 km (0.093 R)
• M10: 16,023,877 km (0.088 R)
• M11: 23,318,718 km (0.052 R)
• M12: 24,129,389 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 436.5

Radius: 13.9

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 3.92 AU - 5.26 AU

Year: 6252 Days

Day: 12.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,030,434 km

• M1: 264,339 km (0.073 R)
• M2: 867,069 km (0.1 R)
• M3: 2,091,977 km (0.102 R)
• M4: 2,540,471 km (0.108 R)
• M5: 4,894,842 km (0.057 R)
• M6: 5,327,031 km (0.108 R)
• M7: 5,903,581 km (0.087 R)
• M8: 15,699,698 km (0.03 R)
• M9: 17,011,223 km (0.035 R)
• M10: 18,073,667 km (0.082 R)
• M11: 18,784,406 km (0.1 R)
• M12: 22,621,741 km (0.113 R)
• M13: 28,310,350 km (0.096 R)
• M14: 29,181,309 km (0.1 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294.2

Radius: 8.1

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 4.06 AU - 5.56 AU

Year: 6707 Days

Day: 7.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 53,030,434 km

• M1: 100,979 km (0.113 R)
• M2: 532,120 km (0.067 R)
• M3: 1,031,178 km (0.087 R)
• M4: 1,367,624 km (0.098 R)
• M5: 2,131,770 km (0.114 R)
• M6: 2,667,330 km (0.043 R)
• M7: 2,949,023 km (0.106 R)
• M8: 3,349,048 km (0.116 R)
• M9: 4,923,565 km (0.115 R)
• M10: 5,887,424 km (0.116 R)
• M11: 6,306,298 km (0.102 R)
• M12: 6,712,905 km (0.096 R)
• M13: 8,330,657 km (0.072 R)
• M14: 8,705,848 km (0.116 R)
• M15: 9,053,214 km (0.115 R)
• M16: 9,611,663 km (0.078 R)
• M17: 11,655,918 km (0.076 R)
• M18: 16,002,335 km (0.114 R)
• M19: 19,238,885 km (0.092 R)
• M20: 27,545,606 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 296.6

Radius: 6.2

Gravity: 7.72 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 7.88 AU - 10.48 AU

Year: 17685 Days

Day: 20.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 53,030,434 km

• M1: 77,791 km (0.106 R)
• M2: 323,730 km (0.108 R)
• M3: 773,122 km (0.1 R)
• M4: 1,130,960 km (0.08 R)
• M5: 1,654,702 km (0.094 R)
• M6: 2,982,832 km (0.071 R)
• M7: 3,291,303 km (0.112 R)
• M8: 5,265,097 km (0.089 R)
• M9: 5,680,830 km (0.119 R)
• M10: 5,896,849 km (0.065 R)
• M11: 6,231,051 km (0.085 R)
• M12: 6,538,624 km (0.086 R)
• M13: 7,310,100 km (0.104 R)
• M14: 10,462,426 km (0.062 R)
• M15: 11,119,311 km (0.12 R)
• M16: 11,401,003 km (0.108 R)
• M17: 11,978,601 km (0.109 R)
• M18: 15,719,894 km (0.101 R)
• M19: 16,800,888 km (0.075 R)
• M20: 17,022,891 km (0.089 R)
• M21: 18,632,116 km (0.089 R)
• M22: 26,483,760 km (0.117 R)
• M23: 32,140,055 km (0.081 R)
• M24: 35,430,161 km (0.095 R)
• M25: 37,156,521 km (0.093 R)
• M26: 40,909,183 km (0.078 R)
• M27: 44,764,919 km (0.105 R)
• M28: 49,308,505 km (0.104 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 209 - 11,257 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit