🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.99

Radius: 1

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.48 AU - 0.64 AU

Year: 271 Days

Day: 33.5 Hours

Environment

Temp: -115 °C

Axial Tilt: 18.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,135,684 km

• M1: 48,769 km (0.112 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.88

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.48 AU - 0.72 AU

Year: 300 Days

Day: 30.2 Hours

Environment

Temp: -131 °C

Axial Tilt: 10.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,135,684 km

• M1: 40,092 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.2

Radius: 14

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.04 AU - 1.2 AU

Year: 765 Days

Day: 8.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,135,684 km

• M1: 175,329 km (0.028 R)
• M2: 709,393 km (0.094 R)
• M3: 1,460,075 km (0.066 R)
• M4: 1,948,363 km (0.082 R)
• M5: 2,447,870 km (0.067 R)
• M6: 3,770,016 km (0.109 R)
• M7: 4,229,132 km (0.046 R)
• M8: 5,582,993 km (0.099 R)
• M9: 7,071,791 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772

Radius: 8.2

Gravity: 11.48 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.28 AU - 1.84 AU

Year: 1258 Days

Day: 7.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 35,135,684 km

• M1: 102,475 km (0.056 R)
• M2: 424,110 km (0.075 R)
• M3: 736,321 km (0.109 R)
• M4: 1,089,671 km (0.114 R)
• M5: 1,416,542 km (0.098 R)
• M6: 2,025,555 km (0.068 R)
• M7: 2,588,941 km (0.101 R)
• M8: 3,312,695 km (0.119 R)
• M9: 4,680,768 km (0.118 R)
• M10: 5,342,589 km (0.114 R)
• M11: 7,153,471 km (0.116 R)
• M12: 8,197,664 km (0.108 R)
• M13: 8,538,448 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 760.7

Radius: 8.2

Gravity: 11.31 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 3.37 AU - 5.25 AU

Year: 5777 Days

Day: 8 Hours

Environment

Temp: -222 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 35,135,684 km

• M1: 102,026 km (0.073 R)
• M2: 410,945 km (0.111 R)
• M3: 698,472 km (0.109 R)
• M4: 974,331 km (0.085 R)
• M5: 1,463,217 km (0.088 R)
• M6: 1,798,914 km (0.118 R)
• M7: 2,908,332 km (0.079 R)
• M8: 3,465,435 km (0.1 R)
• M9: 4,576,049 km (0.075 R)
• M10: 4,956,925 km (0.063 R)
• M11: 5,939,185 km (0.105 R)
• M12: 7,116,820 km (0.09 R)
• M13: 9,617,198 km (0.094 R)
• M14: 12,809,168 km (0.103 R)
• M15: 15,897,167 km (0.079 R)
• M16: 16,519,046 km (0.07 R)
• M17: 18,617,904 km (0.098 R)
• M18: 19,378,759 km (0.113 R)
• M19: 20,376,876 km (0.103 R)
• M20: 20,815,048 km (0.104 R)
• M21: 21,184,854 km (0.109 R)
• M22: 34,021,697 km (0.083 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 186.2

Radius: 4.3

Gravity: 10.07 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 6.8 AU - 6.8 AU

Year: 11449 Days

Day: 15 Hours

Environment

Temp: -227 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 35,135,684 km

• M1: 53,406 km (0.111 R)
• M2: 189,840 km (0.057 R)
• M3: 450,290 km (0.11 R)
• M4: 1,016,069 km (0.071 R)
• M5: 1,483,412 km (0.032 R)
• M6: 2,081,654 km (0.103 R)
• M7: 2,639,654 km (0.052 R)
• M8: 3,043,269 km (0.087 R)
• M9: 3,598,577 km (0.091 R)
• M10: 4,269,074 km (0.084 R)
• M11: 6,811,191 km (0.107 R)
• M12: 8,740,854 km (0.112 R)
• M13: 9,896,797 km (0.102 R)
• M14: 12,717,165 km (0.119 R)
• M15: 13,746,399 km (0.112 R)
• M16: 15,243,125 km (0.092 R)
• M17: 18,352,966 km (0.114 R)
• M18: 21,259,653 km (0.088 R)
• M19: 22,472,592 km (0.06 R)
• M20: 22,860,948 km (0.092 R)
• M21: 24,377,422 km (0.06 R)
• M22: 25,959,719 km (0.101 R)
• M23: 26,645,924 km (0.06 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 641.9

Radius: 5.5

Gravity: 21.22 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 5.66 AU - 8.54 AU

Year: 12215 Days

Day: 17.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 35,135,684 km

• M1: 68,366 km (0.066 R)
• M2: 275,559 km (0.112 R)
• M3: 694,583 km (0.115 R)
• M4: 945,608 km (0.117 R)
• M5: 1,206,208 km (0.111 R)
• M6: 2,403,140 km (0.1 R)
• M7: 3,123,304 km (0.109 R)
• M8: 4,206,842 km (0.052 R)
• M9: 5,381,484 km (0.074 R)
• M10: 5,590,772 km (0.115 R)
• M11: 7,858,825 km (0.111 R)
• M12: 8,497,608 km (0.088 R)
• M13: 10,840,460 km (0.072 R)
• M14: 11,688,979 km (0.103 R)
• M15: 12,826,372 km (0.106 R)
• M16: 13,137,535 km (0.12 R)
• M17: 13,453,636 km (0.109 R)
• M18: 14,769,349 km (0.095 R)
• M19: 16,096,581 km (0.04 R)
• M20: 21,497,812 km (0.11 R)
• M21: 30,236,422 km (0.059 R)
• M22: 33,059,334 km (0.103 R)
• M23: 39,092,616 km (0.115 R)
• M24: 43,684,523 km (0.107 R)
• M25: 51,070,918 km (0.083 R)
• M26: 52,641,696 km (0.111 R)
• M27: 53,278,982 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 82.3

Radius: 3.8

Gravity: 5.7 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 7.32 AU - 11.14 AU

Year: 18106 Days

Day: 20.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 35,135,684 km

• M1: 120,875 km (0.098 R)
• M2: 336,446 km (0.103 R)
• M3: 514,317 km (0.078 R)
• M4: 722,707 km (0.044 R)
• M5: 1,868,178 km (0.037 R)
• M6: 3,529,911 km (0.102 R)
• M7: 4,674,485 km (0.093 R)
• M8: 5,390,310 km (0.103 R)
• M9: 10,934,856 km (0.048 R)
• M10: 13,363,428 km (0.102 R)
• M11: 20,255,701 km (0.099 R)
• M12: 30,321,544 km (0.102 R)
• M13: 33,274,755 km (0.118 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 198 - 12,615 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit