🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.47

Radius: 0.74

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.51 AU - 0.67 AU

Year: 293 Days

Day: 36.5 Hours

Environment

Temp: -130 °C

Axial Tilt: 36.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 27,597,254 km

• M1: 141,819 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 910.2

Radius: 11.9

Gravity: 6.43 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.77 AU - 1.21 AU

Year: 636 Days

Day: 6.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,597,254 km

• M1: 147,952 km (0.098 R)
• M2: 532,868 km (0.029 R)
• M3: 1,004,400 km (0.09 R)
• M4: 2,230,205 km (0.055 R)
• M5: 2,628,883 km (0.084 R)
• M6: 3,013,799 km (0.067 R)
• M7: 4,499,156 km (0.102 R)
• M8: 5,249,389 km (0.079 R)
• M9: 6,161,039 km (0.038 R)
• M10: 7,606,453 km (0.086 R)
• M11: 8,200,058 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972.5

Radius: 11.6

Gravity: 7.23 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.24 AU - 1.26 AU

Year: 902 Days

Day: 7.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 27,597,254 km

• M1: 144,212 km (0.064 R)
• M2: 518,207 km (0.116 R)
• M3: 982,708 km (0.045 R)
• M4: 1,441,226 km (0.097 R)
• M5: 1,982,321 km (0.077 R)
• M6: 2,374,268 km (0.096 R)
• M7: 3,641,960 km (0.112 R)
• M8: 4,020,443 km (0.093 R)
• M9: 4,425,105 km (0.112 R)
• M10: 5,160,678 km (0.045 R)
• M11: 5,764,455 km (0.093 R)
• M12: 6,573,480 km (0.117 R)
• M13: 7,531,654 km (0.071 R)
• M14: 8,282,785 km (0.107 R)
• M15: 9,575,909 km (0.065 R)
• M16: 10,209,157 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 878.4

Radius: 8.5

Gravity: 12.16 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.96 AU - 2.9 AU

Year: 2446 Days

Day: 7.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 27,597,254 km

• M1: 105,766 km (0.115 R)
• M2: 555,307 km (0.051 R)
• M3: 827,276 km (0.095 R)
• M4: 1,672,055 km (0.097 R)
• M5: 2,077,765 km (0.108 R)
• M6: 2,474,798 km (0.076 R)
• M7: 3,020,830 km (0.08 R)
• M8: 4,120,524 km (0.108 R)
• M9: 4,460,261 km (0.099 R)
• M10: 4,887,811 km (0.081 R)
• M11: 5,318,055 km (0.08 R)
• M12: 5,851,521 km (0.108 R)
• M13: 6,617,911 km (0.117 R)
• M14: 7,731,218 km (0.088 R)
• M15: 10,557,271 km (0.033 R)
• M16: 11,986,230 km (0.113 R)
• M17: 12,724,944 km (0.114 R)
• M18: 12,992,725 km (0.106 R)
• M19: 14,007,297 km (0.102 R)
• M20: 16,350,150 km (0.114 R)
• M21: 17,041,741 km (0.075 R)
• M22: 17,697,129 km (0.104 R)
• M23: 20,064,066 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 137.5

Radius: 12.4

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 3.61 AU - 4.41 AU

Year: 5185 Days

Day: 6.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,597,254 km

• M1: 161,416 km (0.092 R)
• M2: 694,433 km (0.084 R)
• M3: 1,437,785 km (0.047 R)
• M4: 2,508,607 km (0.056 R)
• M5: 5,977,183 km (0.11 R)
• M6: 7,026,313 km (0.077 R)
• M7: 8,352,947 km (0.058 R)
• M8: 9,008,634 km (0.057 R)
• M9: 10,722,577 km (0.09 R)
• M10: 12,560,387 km (0.055 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.1

Radius: 11.8

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 3.67 AU - 4.69 AU

Year: 5518 Days

Day: 13.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,597,254 km

• M1: 203,154 km (0.055 R)
• M2: 2,633,970 km (0.099 R)
• M3: 3,846,161 km (0.105 R)
• M4: 5,282,750 km (0.101 R)
• M5: 6,636,012 km (0.069 R)
• M6: 7,540,331 km (0.093 R)
• M7: 9,420,627 km (0.059 R)
• M8: 10,232,345 km (0.105 R)
• M9: 13,119,284 km (0.047 R)
• M10: 14,772,491 km (0.048 R)
• M11: 16,211,622 km (0.062 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 360.7

Radius: 13.7

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 3.53 AU - 5.33 AU

Year: 6020 Days

Day: 6 Hours

Environment

Temp: -211 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,597,254 km

• M1: 170,542 km (0.065 R)
• M2: 918,381 km (0.032 R)
• M3: 2,652,969 km (0.074 R)
• M4: 6,581,259 km (0.113 R)
• M5: 10,111,769 km (0.073 R)
• M6: 11,511,257 km (0.115 R)
• M7: 12,068,060 km (0.074 R)
• M8: 13,899,288 km (0.069 R)
• M9: 18,988,757 km (0.091 R)
• M10: 20,975,117 km (0.075 R)
• M11: 27,025,304 km (0.118 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 420 - 19,478 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit