🌌 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: 517.6

Radius: 11.7

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.51 AU - 0.51 AU

Year: 251 Days

Day: 13.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 45,623,854 km

• M1: 145,559 km (0.117 R)
• M2: 628,909 km (0.108 R)
• M3: 1,037,461 km (0.09 R)
• M4: 1,484,011 km (0.096 R)
• M5: 1,880,894 km (0.093 R)
• M6: 2,310,539 km (0.116 R)
• M7: 2,770,702 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.9

Radius: 11.2

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.45 AU - 0.65 AU

Year: 282 Days

Day: 9.2 Hours

Environment

Temp: -154 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 45,623,854 km

• M1: 139,425 km (0.107 R)
• M2: 532,868 km (0.094 R)
• M3: 932,294 km (0.092 R)
• M4: 1,569,730 km (0.091 R)
• M5: 1,947,016 km (0.104 R)
• M6: 2,349,435 km (0.042 R)
• M7: 2,889,483 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.2

Radius: 11.2

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.71 AU - 1.09 AU

Year: 589 Days

Day: 9.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 45,623,854 km

• M1: 139,276 km (0.066 R)
• M2: 563,984 km (0.116 R)
• M3: 954,135 km (0.096 R)
• M4: 1,556,267 km (0.074 R)
• M5: 2,227,961 km (0.12 R)
• M6: 2,731,657 km (0.091 R)
• M7: 4,173,332 km (0.037 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.3

Radius: 12.9

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.7 AU - 2.44 AU

Year: 2056 Days

Day: 8.9 Hours

Environment

Temp: -202 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 45,623,854 km

• M1: 160,519 km (0.092 R)
• M2: 620,083 km (0.103 R)
• M3: 1,037,012 km (0.073 R)
• M4: 1,950,906 km (0.088 R)
• M5: 2,527,007 km (0.049 R)
• M6: 2,993,304 km (0.117 R)
• M7: 3,569,256 km (0.115 R)
• M8: 4,708,144 km (0.04 R)
• M9: 5,281,553 km (0.073 R)
• M10: 5,729,748 km (0.059 R)
• M11: 6,649,027 km (0.032 R)
• M12: 7,172,769 km (0.117 R)
• M13: 7,723,738 km (0.101 R)
• M14: 9,791,031 km (0.11 R)
• M15: 10,765,512 km (0.115 R)
• M16: 13,505,845 km (0.069 R)
• M17: 16,432,728 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 177.6

Radius: 11.5

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 2.62 AU - 2.9 AU

Year: 3165 Days

Day: 13.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 45,623,854 km

• M1: 145,260 km (0.066 R)
• M2: 537,804 km (0.087 R)
• M3: 1,716,486 km (0.091 R)
• M4: 3,427,586 km (0.114 R)
• M5: 3,948,785 km (0.114 R)
• M6: 4,639,778 km (0.045 R)
• M7: 5,930,060 km (0.046 R)
• M8: 8,441,957 km (0.064 R)
• M9: 10,593,175 km (0.094 R)
• M10: 13,449,746 km (0.056 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.1

Radius: 11.3

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 2.17 AU - 3.41 AU

Year: 3217 Days

Day: 9.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 45,623,854 km

• M1: 154,834 km (0.043 R)
• M2: 984,803 km (0.072 R)
• M3: 1,399,338 km (0.098 R)
• M4: 1,896,751 km (0.032 R)
• M5: 3,530,211 km (0.036 R)
• M6: 4,807,328 km (0.08 R)
• M7: 5,193,589 km (0.08 R)
• M8: 5,575,961 km (0.106 R)
• M9: 7,268,961 km (0.035 R)
• M10: 8,442,855 km (0.102 R)
• M11: 9,955,290 km (0.099 R)
• M12: 12,509,374 km (0.088 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 495.4

Radius: 7.9

Gravity: 7.94 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 6.18 AU - 9.2 AU

Year: 14720 Days

Day: 17.2 Hours

Environment

Temp: -236 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 45,623,854 km

• M1: 189,541 km (0.108 R)
• M2: 473,477 km (0.035 R)
• M3: 987,645 km (0.069 R)
• M4: 2,648,182 km (0.099 R)
• M5: 3,984,988 km (0.089 R)
• M6: 4,334,598 km (0.094 R)
• M7: 4,610,008 km (0.077 R)
• M8: 6,517,381 km (0.063 R)
• M9: 9,963,218 km (0.078 R)
• M10: 15,644,347 km (0.118 R)
• M11: 18,755,235 km (0.034 R)
• M12: 26,068,327 km (0.074 R)
• M13: 27,708,069 km (0.12 R)
• M14: 42,117,037 km (0.105 R)
• M15: 42,394,391 km (0.052 R)
• M16: 45,526,222 km (0.05 R)
• M17: 46,554,259 km (0.083 R)
• M18: 48,961,887 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 218.4

Radius: 5.2

Gravity: 8.08 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 6.44 AU - 10.12 AU

Year: 16446 Days

Day: 15.4 Hours

Environment

Temp: -237 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 45,623,854 km

• M1: 68,815 km (0.057 R)
• M2: 308,770 km (0.062 R)
• M3: 663,467 km (0.118 R)
• M4: 1,672,355 km (0.025 R)
• M5: 2,280,021 km (0.05 R)
• M6: 3,586,759 km (0.07 R)
• M7: 4,615,842 km (0.117 R)
• M8: 5,040,401 km (0.042 R)
• M9: 6,143,685 km (0.105 R)
• M10: 7,521,183 km (0.055 R)
• M11: 8,151,588 km (0.089 R)
• M12: 9,138,934 km (0.096 R)
• M13: 9,517,117 km (0.054 R)
• M14: 14,014,029 km (0.051 R)
• M15: 14,389,969 km (0.1 R)
• M16: 25,001,245 km (0.036 R)
• M17: 27,552,786 km (0.103 R)
• M18: 36,592,387 km (0.068 R)
• M19: 36,947,383 km (0.091 R)
• M20: 38,879,739 km (0.114 R)
• M21: 41,260,738 km (0.089 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 274 - 12,577 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit