🌌 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: 1.16

Radius: 1.06

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.56 AU - 0.62 AU

Year: 297 Days

Day: 21.6 Hours

Environment

Temp: -132 °C

Axial Tilt: 46.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,022,523 km

• M1: 123,269 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 749.3

Radius: 12.6

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.79 AU - 1.13 AU

Year: 617 Days

Day: 10.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 51,022,523 km

• M1: 156,779 km (0.119 R)
• M2: 577,897 km (0.118 R)
• M3: 1,135,448 km (0.055 R)
• M4: 1,646,175 km (0.063 R)
• M5: 2,063,852 km (0.102 R)
• M6: 2,770,403 km (0.097 R)
• M7: 3,230,716 km (0.111 R)
• M8: 3,910,040 km (0.119 R)
• M9: 4,962,311 km (0.11 R)
• M10: 5,831,325 km (0.109 R)
• M11: 6,431,960 km (0.079 R)
• M12: 6,946,128 km (0.091 R)
• M13: 7,644,152 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 92

Radius: 13.6

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 2.86 AU - 3.48 AU

Year: 3703 Days

Day: 5.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 51,022,523 km

• M1: 195,375 km (0.093 R)
• M2: 806,781 km (0.109 R)
• M3: 1,665,473 km (0.077 R)
• M4: 3,073,937 km (0.109 R)
• M5: 5,586,284 km (0.086 R)
• M6: 6,302,857 km (0.108 R)
• M7: 7,004,322 km (0.038 R)
• M8: 7,865,407 km (0.032 R)
• M9: 9,121,880 km (0.094 R)
• M10: 10,808,446 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 465

Radius: 12.6

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 2.9 AU - 4.82 AU

Year: 4975 Days

Day: 5.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 51,022,523 km

• M1: 158,275 km (0.086 R)
• M2: 557,701 km (0.047 R)
• M3: 970,741 km (0.067 R)
• M4: 1,543,252 km (0.106 R)
• M5: 2,022,414 km (0.066 R)
• M6: 2,749,459 km (0.115 R)
• M7: 3,288,012 km (0.087 R)
• M8: 3,939,660 km (0.117 R)
• M9: 4,389,501 km (0.115 R)
• M10: 5,667,216 km (0.088 R)
• M11: 6,154,008 km (0.072 R)
• M12: 7,579,077 km (0.106 R)
• M13: 10,682,036 km (0.064 R)
• M14: 12,585,968 km (0.073 R)
• M15: 15,518,834 km (0.095 R)
• M16: 16,020,436 km (0.1 R)
• M17: 16,590,254 km (0.113 R)
• M18: 19,388,034 km (0.043 R)
• M19: 24,676,468 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.8

Radius: 13.6

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 4.65 AU - 6.93 AU

Year: 9140 Days

Day: 9.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,022,523 km

• M1: 178,171 km (0.119 R)
• M2: 1,500,167 km (0.095 R)
• M3: 2,326,696 km (0.079 R)
• M4: 2,934,213 km (0.06 R)
• M5: 4,275,208 km (0.102 R)
• M6: 5,673,200 km (0.082 R)
• M7: 6,210,705 km (0.107 R)
• M8: 10,777,629 km (0.104 R)
• M9: 14,196,389 km (0.104 R)
• M10: 17,710,593 km (0.037 R)
• M11: 21,381,126 km (0.103 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 845.8

Radius: 7.1

Gravity: 16.78 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 5.01 AU - 7.19 AU

Year: 9883 Days

Day: 16.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 51,022,523 km

• M1: 88,412 km (0.106 R)
• M2: 454,478 km (0.045 R)
• M3: 708,047 km (0.043 R)
• M4: 1,025,493 km (0.033 R)
• M5: 1,650,214 km (0.105 R)
• M6: 1,918,742 km (0.087 R)
• M7: 2,143,737 km (0.048 R)
• M8: 4,194,724 km (0.061 R)
• M9: 4,854,601 km (0.073 R)
• M10: 5,078,399 km (0.063 R)
• M11: 6,191,407 km (0.1 R)
• M12: 7,291,400 km (0.075 R)
• M13: 7,714,164 km (0.061 R)
• M14: 9,720,870 km (0.077 R)
• M15: 10,285,452 km (0.102 R)
• M16: 10,602,450 km (0.102 R)
• M17: 12,824,277 km (0.09 R)
• M18: 14,205,664 km (0.073 R)
• M19: 17,409,452 km (0.102 R)
• M20: 17,935,738 km (0.043 R)
• M21: 19,659,255 km (0.113 R)
• M22: 20,065,862 km (0.043 R)
• M23: 21,835,006 km (0.07 R)
• M24: 29,741,403 km (0.116 R)
• M25: 32,485,327 km (0.07 R)
• M26: 33,744,492 km (0.078 R)
• M27: 36,359,613 km (0.092 R)
• M28: 40,269,802 km (0.084 R)
• M29: 44,034,432 km (0.115 R)
• M30: 44,311,936 km (0.06 R)
• M31: 45,292,551 km (0.08 R)
• M32: 46,144,660 km (0.084 R)
• M33: 48,468,813 km (0.115 R)
• M34: 50,717,568 km (0.11 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 231 - 19,224 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit