🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397

Radius: 10.9

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.79 AU - 0.91 AU

Year: 541 Days

Day: 7.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,868,586 km

• M1: 138,528 km (0.116 R)
• M2: 503,546 km (0.032 R)
• M3: 933,940 km (0.056 R)
• M4: 1,371,364 km (0.081 R)
• M5: 2,082,702 km (0.097 R)
• M6: 2,489,757 km (0.12 R)
• M7: 3,419,508 km (0.097 R)
• M8: 3,873,986 km (0.055 R)
• M9: 4,580,986 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90

Radius: 12.9

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.76 AU - 0.96 AU

Year: 551 Days

Day: 11.9 Hours

Environment

Temp: -172 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,868,586 km

• M1: 160,369 km (0.077 R)
• M2: 620,233 km (0.099 R)
• M3: 1,223,411 km (0.066 R)
• M4: 1,626,278 km (0.112 R)
• M5: 2,112,920 km (0.041 R)
• M6: 2,573,532 km (0.066 R)
• M7: 3,147,689 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 654.9

Radius: 10.4

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.12 AU - 1.12 AU

Year: 818 Days

Day: 6.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,868,586 km

• M1: 129,701 km (0.068 R)
• M2: 486,343 km (0.118 R)
• M3: 923,168 km (0.105 R)
• M4: 1,292,675 km (0.116 R)
• M5: 1,753,437 km (0.067 R)
• M6: 2,129,675 km (0.1 R)
• M7: 2,948,125 km (0.113 R)
• M8: 3,402,753 km (0.088 R)
• M9: 3,755,655 km (0.111 R)
• M10: 4,117,532 km (0.103 R)
• M11: 4,502,746 km (0.051 R)
• M12: 5,629,966 km (0.072 R)
• M13: 6,044,951 km (0.115 R)
• M14: 7,937,065 km (0.065 R)
• M15: 8,358,332 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.8

Radius: 10.5

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.59 AU - 2.39 AU

Year: 1938 Days

Day: 7.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 40,868,586 km

• M1: 131,048 km (0.07 R)
• M2: 476,469 km (0.117 R)
• M3: 1,059,003 km (0.112 R)
• M4: 2,925,386 km (0.1 R)
• M5: 3,279,185 km (0.105 R)
• M6: 3,728,428 km (0.09 R)
• M7: 4,517,407 km (0.08 R)
• M8: 5,054,463 km (0.068 R)
• M9: 6,597,116 km (0.08 R)
• M10: 8,086,064 km (0.053 R)
• M11: 8,549,967 km (0.073 R)
• M12: 10,082,148 km (0.11 R)
• M13: 10,826,398 km (0.088 R)
• M14: 12,160,512 km (0.114 R)
• M15: 12,731,377 km (0.099 R)
• M16: 13,280,401 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 896.1

Radius: 14.7

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 2.74 AU - 2.9 AU

Year: 3269 Days

Day: 7.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,868,586 km

• M1: 182,809 km (0.083 R)
• M2: 911,350 km (0.085 R)
• M3: 1,559,259 km (0.056 R)
• M4: 2,146,131 km (0.072 R)
• M5: 2,812,590 km (0.08 R)
• M6: 3,477,702 km (0.102 R)
• M7: 4,358,684 km (0.1 R)
• M8: 5,202,864 km (0.058 R)
• M9: 5,842,994 km (0.089 R)
• M10: 8,688,944 km (0.103 R)
• M11: 10,027,695 km (0.063 R)
• M12: 11,677,011 km (0.078 R)
• M13: 13,947,757 km (0.106 R)
• M14: 14,610,476 km (0.06 R)
• M15: 15,401,101 km (0.056 R)
• M16: 17,241,005 km (0.055 R)
• M17: 18,913,808 km (0.062 R)
• M18: 23,211,007 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 410.5

Radius: 8

Gravity: 6.41 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 4.84 AU - 7.18 AU

Year: 10170 Days

Day: 22.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 40,868,586 km

• M1: 100,380 km (0.096 R)
• M2: 430,543 km (0.069 R)
• M3: 691,741 km (0.057 R)
• M4: 947,403 km (0.104 R)
• M5: 6,994,000 km (0.102 R)
• M6: 7,850,148 km (0.104 R)
• M7: 8,387,803 km (0.113 R)
• M8: 8,861,729 km (0.043 R)
• M9: 9,862,988 km (0.055 R)
• M10: 11,608,645 km (0.082 R)
• M11: 12,034,850 km (0.087 R)
• M12: 14,083,293 km (0.076 R)
• M13: 18,351,769 km (0.105 R)
• M14: 20,507,175 km (0.071 R)
• M15: 21,846,226 km (0.091 R)
• M16: 36,169,324 km (0.112 R)
• M17: 37,770,620 km (0.115 R)
• M18: 39,061,350 km (0.091 R)
• M19: 40,868,642 km (0.099 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 386 - 12,600 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit