🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.08

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.47 AU - 0.61 AU

Year: 256 Days

Day: 16.7 Hours

Environment

Temp: -121 °C

Axial Tilt: 11.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 877.7

Radius: 14

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.23 AU - 1.39 AU

Year: 968 Days

Day: 10.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 27,065,715 km

• M1: 174,132 km (0.088 R)
• M2: 645,216 km (0.077 R)
• M3: 1,171,651 km (0.104 R)
• M4: 1,701,825 km (0.064 R)
• M5: 2,206,419 km (0.097 R)
• M6: 3,722,743 km (0.082 R)
• M7: 4,640,825 km (0.108 R)
• M8: 5,144,372 km (0.09 R)
• M9: 6,306,298 km (0.065 R)
• M10: 8,476,664 km (0.067 R)
• M11: 9,003,997 km (0.082 R)
• M12: 9,731,491 km (0.106 R)
• M13: 10,310,136 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 985.1

Radius: 10.9

Gravity: 8.29 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.85 AU - 2.03 AU

Year: 1745 Days

Day: 6 Hours

Environment

Temp: -195 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 27,065,715 km

• M1: 135,536 km (0.115 R)
• M2: 507,436 km (0.112 R)
• M3: 1,040,603 km (0.095 R)
• M4: 1,543,700 km (0.084 R)
• M5: 2,047,247 km (0.103 R)
• M6: 3,206,331 km (0.051 R)
• M7: 3,629,992 km (0.09 R)
• M8: 4,385,910 km (0.102 R)
• M9: 4,931,344 km (0.097 R)
• M10: 5,664,523 km (0.097 R)
• M11: 6,260,820 km (0.045 R)
• M12: 7,785,971 km (0.091 R)
• M13: 8,942,662 km (0.12 R)
• M14: 11,208,471 km (0.094 R)
• M15: 11,949,130 km (0.093 R)
• M16: 12,351,847 km (0.027 R)
• M17: 12,888,904 km (0.108 R)
• M18: 13,833,166 km (0.092 R)
• M19: 14,594,020 km (0.12 R)
• M20: 16,247,974 km (0.087 R)
• M21: 16,842,775 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837.4

Radius: 14.1

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 2.35 AU - 3.35 AU

Year: 3107 Days

Day: 5.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 27,065,715 km

• M1: 175,329 km (0.102 R)
• M2: 644,916 km (0.085 R)
• M3: 1,141,881 km (0.117 R)
• M4: 1,725,462 km (0.109 R)
• M5: 2,387,881 km (0.026 R)
• M6: 2,887,089 km (0.079 R)
• M7: 4,207,590 km (0.053 R)
• M8: 4,728,041 km (0.117 R)
• M9: 7,006,416 km (0.115 R)
• M10: 7,447,730 km (0.106 R)
• M11: 7,974,763 km (0.112 R)
• M12: 10,058,662 km (0.058 R)
• M13: 10,499,377 km (0.103 R)
• M14: 12,621,872 km (0.119 R)
• M15: 13,229,987 km (0.093 R)
• M16: 14,454,745 km (0.094 R)
• M17: 16,294,499 km (0.082 R)
• M18: 17,643,274 km (0.102 R)
• M19: 20,055,091 km (0.072 R)
• M20: 20,948,788 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.3

Radius: 13.3

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 3.17 AU - 3.47 AU

Year: 3906 Days

Day: 13.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,065,715 km

• M1: 165,904 km (0.095 R)
• M2: 679,324 km (0.082 R)
• M3: 1,696,589 km (0.087 R)
• M4: 3,878,026 km (0.027 R)
• M5: 4,838,294 km (0.117 R)
• M6: 5,406,617 km (0.103 R)
• M7: 7,410,031 km (0.091 R)
• M8: 9,065,332 km (0.101 R)
• M9: 10,060,158 km (0.089 R)
• M10: 10,785,558 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 14.3

Radius: 12.9

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.98 AU - 4.94 AU

Year: 5088 Days

Day: 9.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,065,715 km

• M1: 165,006 km (0.064 R)
• M2: 649,853 km (0.112 R)
• M3: 1,424,022 km (0.041 R)
• M4: 3,088,747 km (0.12 R)
• M5: 4,031,064 km (0.063 R)
• M6: 4,594,450 km (0.102 R)
• M7: 5,192,093 km (0.081 R)
• M8: 6,840,363 km (0.057 R)
• M9: 7,714,463 km (0.052 R)
• M10: 8,313,154 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 848.7

Radius: 10.1

Gravity: 8.32 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 3.85 AU - 4.51 AU

Year: 5518 Days

Day: 5.9 Hours

Environment

Temp: -202 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 27,065,715 km

• M1: 125,662 km (0.097 R)
• M2: 523,892 km (0.091 R)
• M3: 907,760 km (0.099 R)
• M4: 1,245,851 km (0.079 R)
• M5: 2,469,412 km (0.115 R)
• M6: 3,045,214 km (0.089 R)
• M7: 5,867,079 km (0.036 R)
• M8: 6,316,770 km (0.112 R)
• M9: 8,113,590 km (0.112 R)
• M10: 11,363,753 km (0.104 R)
• M11: 12,166,196 km (0.12 R)
• M12: 13,996,377 km (0.096 R)
• M13: 15,334,081 km (0.109 R)
• M14: 17,661,973 km (0.074 R)
• M15: 21,468,342 km (0.114 R)
• M16: 25,874,149 km (0.117 R)
• M17: 27,615,318 km (0.092 R)
• M18: 30,276,664 km (0.11 R)
• M19: 31,136,254 km (0.065 R)
• M20: 32,904,201 km (0.081 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.7

Radius: 13.5

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 5.17 AU - 5.59 AU

Year: 8057 Days

Day: 12.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 27,065,715 km

• M1: 208,689 km (0.099 R)
• M2: 725,101 km (0.087 R)
• M3: 1,157,140 km (0.05 R)
• M4: 1,732,643 km (0.066 R)
• M5: 2,342,703 km (0.048 R)
• M6: 2,826,801 km (0.109 R)
• M7: 3,516,597 km (0.107 R)
• M8: 4,433,333 km (0.093 R)
• M9: 7,223,632 km (0.092 R)
• M10: 8,117,480 km (0.086 R)
• M11: 8,703,455 km (0.087 R)
• M12: 9,435,736 km (0.067 R)
• M13: 10,848,688 km (0.115 R)
• M14: 12,350,800 km (0.049 R)
• M15: 14,039,162 km (0.114 R)
• M16: 15,101,755 km (0.059 R)
• M17: 16,160,011 km (0.105 R)
• M18: 17,566,829 km (0.045 R)
• M19: 18,238,374 km (0.066 R)
• M20: 20,223,089 km (0.1 R)
• M21: 21,233,623 km (0.106 R)
• M22: 22,992,146 km (0.114 R)
• M23: 26,083,436 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 52.3

Radius: 5.1

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 7.43 AU - 9.11 AU

Year: 15356 Days

Day: 17.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 27,065,715 km

• M1: 64,327 km (0.097 R)
• M2: 688,449 km (0.092 R)
• M3: 1,069,475 km (0.056 R)
• M4: 1,365,679 km (0.068 R)
• M5: 3,358,323 km (0.058 R)
• M6: 5,441,623 km (0.112 R)
• M7: 8,780,497 km (0.042 R)
• M8: 9,325,183 km (0.04 R)
• M9: 9,974,887 km (0.102 R)
• M10: 10,268,547 km (0.096 R)
• M11: 11,183,787 km (0.107 R)
• M12: 12,199,706 km (0.045 R)
• M13: 15,280,824 km (0.093 R)
• M14: 15,447,177 km (0.118 R)
• M15: 16,182,450 km (0.108 R)
• M16: 18,339,502 km (0.117 R)
• M17: 18,780,217 km (0.107 R)
• M18: 23,287,751 km (0.05 R)
• M19: 24,404,050 km (0.096 R)
• M20: 25,477,714 km (0.086 R)
• M21: 27,065,696 km (0.058 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 283 - 13,263 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit