🌌 Stone's Star System Generator

Asteroid Belt

Center: 1 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.82 AU - 2.18 AU

Year: 1272 Days

Day: 15 Hours

Environment

Temp: -136 °C

Axial Tilt: 27 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 526.6

Radius: 14.4

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 2.44 AU - 2.44 AU

Year: 1714 Days

Day: 5.3 Hours

Environment

Temp: -132 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,737,506 km

• M1: 179,069 km (0.087 R)
• M2: 659,427 km (0.08 R)
• M3: 1,256,772 km (0.106 R)
• M4: 1,890,468 km (0.089 R)
• M5: 3,228,172 km (0.106 R)
• M6: 4,181,560 km (0.1 R)
• M7: 4,843,231 km (0.076 R)
• M8: 5,422,175 km (0.114 R)
• M9: 5,954,893 km (0.115 R)
• M10: 6,719,936 km (0.092 R)
• M11: 7,495,751 km (0.118 R)
• M12: 9,319,798 km (0.038 R)
• M13: 9,989,099 km (0.036 R)
• M14: 11,317,378 km (0.053 R)
• M15: 11,858,623 km (0.115 R)
• M16: 12,454,920 km (0.103 R)
• M17: 12,954,128 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 506.9

Radius: 11.5

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 2.4 AU - 2.6 AU

Year: 1777 Days

Day: 10 Hours

Environment

Temp: -138 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 60,737,506 km

• M1: 147,803 km (0.114 R)
• M2: 512,822 km (0.092 R)
• M3: 1,251,685 km (0.054 R)
• M4: 1,868,926 km (0.106 R)
• M5: 3,469,773 km (0.104 R)
• M6: 4,024,183 km (0.108 R)
• M7: 4,444,852 km (0.036 R)
• M8: 4,955,878 km (0.111 R)
• M9: 7,565,763 km (0.102 R)
• M10: 8,981,258 km (0.086 R)
• M11: 10,095,313 km (0.108 R)
• M12: 11,228,218 km (0.069 R)
• M13: 11,770,211 km (0.037 R)
• M14: 12,558,592 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923.8

Radius: 13.3

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 4.55 AU - 5.11 AU

Year: 4772 Days

Day: 11.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,737,506 km

• M1: 169,494 km (0.109 R)
• M2: 1,475,185 km (0.038 R)
• M3: 1,917,097 km (0.087 R)
• M4: 2,334,624 km (0.066 R)
• M5: 2,759,482 km (0.088 R)
• M6: 3,338,276 km (0.076 R)
• M7: 5,815,916 km (0.093 R)
• M8: 6,282,363 km (0.083 R)
• M9: 6,807,302 km (0.081 R)
• M10: 7,290,503 km (0.08 R)
• M11: 13,045,832 km (0.119 R)
• M12: 15,434,461 km (0.115 R)
• M13: 17,455,678 km (0.061 R)
• M14: 19,100,207 km (0.097 R)
• M15: 19,995,102 km (0.071 R)
• M16: 22,167,113 km (0.11 R)
• M17: 23,232,699 km (0.078 R)
• M18: 25,220,256 km (0.057 R)
• M19: 30,634,802 km (0.112 R)
• M20: 32,052,391 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 931.5

Radius: 10.2

Gravity: 8.95 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 3.83 AU - 6.21 AU

Year: 5057 Days

Day: 8.6 Hours

Environment

Temp: -167 °C

Axial Tilt: 97.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 60,737,506 km

• M1: 126,859 km (0.117 R)
• M2: 446,849 km (0.09 R)
• M3: 1,079,648 km (0.101 R)
• M4: 1,800,261 km (0.037 R)
• M5: 2,614,672 km (0.107 R)
• M6: 3,613,237 km (0.041 R)
• M7: 4,848,467 km (0.064 R)
• M8: 5,268,837 km (0.045 R)
• M9: 5,961,026 km (0.106 R)
• M10: 6,345,493 km (0.082 R)
• M11: 7,452,816 km (0.092 R)
• M12: 9,306,184 km (0.059 R)
• M13: 10,592,427 km (0.064 R)
• M14: 11,110,185 km (0.114 R)
• M15: 17,448,946 km (0.089 R)
• M16: 17,774,920 km (0.083 R)
• M17: 23,640,204 km (0.059 R)
• M18: 24,120,113 km (0.071 R)
• M19: 25,514,964 km (0.101 R)
• M20: 25,935,334 km (0.087 R)
• M21: 26,617,500 km (0.034 R)
• M22: 27,311,485 km (0.106 R)
• M23: 28,645,299 km (0.091 R)
• M24: 29,928,849 km (0.096 R)
• M25: 30,490,589 km (0.118 R)
• M26: 33,006,227 km (0.079 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 558.3

Radius: 6.4

Gravity: 13.63 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 7.68 AU - 11.68 AU

Year: 13540 Days

Day: 15.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,737,506 km

• M1: 81,232 km (0.104 R)
• M2: 357,988 km (0.091 R)
• M3: 836,102 km (0.108 R)
• M4: 1,333,067 km (0.091 R)
• M5: 3,768,819 km (0.03 R)
• M6: 5,336,605 km (0.034 R)
• M7: 13,503,302 km (0.115 R)
• M8: 18,688,215 km (0.107 R)
• M9: 19,417,355 km (0.088 R)
• M10: 24,290,655 km (0.036 R)
• M11: 30,694,342 km (0.102 R)
• M12: 31,822,459 km (0.1 R)
• M13: 34,041,743 km (0.093 R)
• M14: 35,372,716 km (0.11 R)
• M15: 37,880,724 km (0.11 R)
• M16: 43,107,823 km (0.102 R)
• M17: 43,810,933 km (0.081 R)
• M18: 50,021,339 km (0.099 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 572.4

Radius: 4.8

Gravity: 24.84 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 9.71 AU - 11.57 AU

Year: 15604 Days

Day: 24.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 60,737,506 km

• M1: 59,690 km (0.067 R)
• M2: 312,959 km (0.058 R)
• M3: 537,804 km (0.114 R)
• M4: 1,267,393 km (0.105 R)
• M5: 1,920,388 km (0.119 R)
• M6: 3,083,661 km (0.081 R)
• M7: 3,285,169 km (0.073 R)
• M8: 3,659,014 km (0.057 R)
• M9: 4,523,092 km (0.102 R)
• M10: 4,917,731 km (0.094 R)
• M11: 5,370,713 km (0.113 R)
• M12: 6,359,405 km (0.089 R)
• M13: 6,603,848 km (0.098 R)
• M14: 7,198,350 km (0.089 R)
• M15: 7,508,766 km (0.063 R)
• M16: 9,828,131 km (0.099 R)
• M17: 12,021,535 km (0.11 R)
• M18: 14,591,028 km (0.086 R)
• M19: 15,016,335 km (0.103 R)
• M20: 16,877,632 km (0.112 R)
• M21: 17,743,355 km (0.115 R)
• M22: 18,065,289 km (0.059 R)
• M23: 18,970,955 km (0.104 R)
• M24: 21,502,749 km (0.108 R)
• M25: 21,685,259 km (0.113 R)
• M26: 21,868,815 km (0.08 R)
• M27: 22,053,419 km (0.107 R)
• M28: 24,152,726 km (0.065 R)
• M29: 26,695,740 km (0.103 R)
• M30: 27,012,439 km (0.117 R)
• M31: 32,666,041 km (0.046 R)
• M32: 34,255,220 km (0.088 R)
• M33: 38,654,145 km (0.103 R)
• M34: 39,604,241 km (0.103 R)
• M35: 44,886,243 km (0.06 R)
• M36: 54,926,504 km (0.038 R)
• M37: 55,954,092 km (0.05 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 184 - 14,457 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit