🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.5 AU - 0.52 AU

Year: 235 Days

Day: 36.4 Hours

Environment

Temp: -111 °C

Axial Tilt: 163.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.58

Radius: 1.67

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.49 AU - 0.61 AU

Year: 263 Days

Day: 41 Hours

Environment

Temp: -119 °C

Axial Tilt: 23.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 932.3

Radius: 11.7

Gravity: 6.81 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.8 AU - 0.9 AU

Year: 506 Days

Day: 7.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 85,808,009 km

• M1: 145,559 km (0.1 R)
• M2: 564,732 km (0.091 R)
• M3: 942,915 km (0.037 R)
• M4: 1,571,226 km (0.078 R)
• M5: 1,977,534 km (0.099 R)
• M6: 2,598,665 km (0.108 R)
• M7: 3,198,253 km (0.091 R)
• M8: 3,874,286 km (0.105 R)
• M9: 4,722,655 km (0.114 R)
• M10: 5,302,497 km (0.104 R)
• M11: 5,836,860 km (0.065 R)
• M12: 6,725,771 km (0.067 R)
• M13: 7,118,465 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 979.5

Radius: 10.9

Gravity: 8.24 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 1.01 AU - 1.31 AU

Year: 807 Days

Day: 13.8 Hours

Environment

Temp: -163 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 85,808,009 km

• M1: 135,835 km (0.092 R)
• M2: 483,351 km (0.104 R)
• M3: 915,389 km (0.104 R)
• M4: 1,298,510 km (0.081 R)
• M5: 1,781,411 km (0.047 R)
• M6: 2,305,453 km (0.089 R)
• M7: 2,841,911 km (0.075 R)
• M8: 3,988,878 km (0.104 R)
• M9: 6,506,161 km (0.095 R)
• M10: 6,913,666 km (0.088 R)
• M11: 7,338,224 km (0.119 R)
• M12: 7,779,987 km (0.056 R)
• M13: 8,609,507 km (0.042 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615.4

Radius: 13.1

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.1 AU - 1.8 AU

Year: 1127 Days

Day: 11.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 85,808,009 km

• M1: 162,912 km (0.097 R)
• M2: 646,562 km (0.077 R)
• M3: 1,295,069 km (0.063 R)
• M4: 2,121,298 km (0.072 R)
• M5: 2,611,680 km (0.103 R)
• M6: 3,476,206 km (0.052 R)
• M7: 3,903,756 km (0.074 R)
• M8: 4,829,468 km (0.09 R)
• M9: 5,565,190 km (0.119 R)
• M10: 6,154,008 km (0.118 R)
• M11: 8,226,836 km (0.078 R)
• M12: 9,538,959 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683

Radius: 12.5

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 2.96 AU - 4.6 AU

Year: 4745 Days

Day: 8.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 85,808,009 km

• M1: 155,432 km (0.112 R)
• M2: 914,641 km (0.106 R)
• M3: 1,335,011 km (0.095 R)
• M4: 1,982,321 km (0.087 R)
• M5: 2,557,076 km (0.094 R)
• M6: 3,691,327 km (0.058 R)
• M7: 4,159,718 km (0.113 R)
• M8: 4,592,655 km (0.101 R)
• M9: 6,290,142 km (0.088 R)
• M10: 6,797,578 km (0.107 R)
• M11: 10,702,980 km (0.114 R)
• M12: 11,152,372 km (0.029 R)
• M13: 13,487,744 km (0.103 R)
• M14: 14,880,799 km (0.056 R)
• M15: 19,302,912 km (0.051 R)
• M16: 20,583,470 km (0.115 R)
• M17: 22,135,997 km (0.098 R)
• M18: 24,377,272 km (0.076 R)
• M19: 25,552,962 km (0.071 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 515.5

Radius: 13.9

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 3.61 AU - 5.31 AU

Year: 6082 Days

Day: 12.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 85,808,009 km

• M1: 181,761 km (0.098 R)
• M2: 670,946 km (0.085 R)
• M3: 1,428,809 km (0.072 R)
• M4: 1,867,281 km (0.076 R)
• M5: 4,325,772 km (0.116 R)
• M6: 4,992,380 km (0.115 R)
• M7: 6,996,842 km (0.08 R)
• M8: 7,918,215 km (0.049 R)
• M9: 15,343,655 km (0.086 R)
• M10: 18,685,672 km (0.089 R)
• M11: 22,336,458 km (0.12 R)
• M12: 27,967,771 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 977.4

Radius: 3.4

Gravity: 84.55 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 7.93 AU - 11.83 AU

Year: 20052 Days

Day: 22.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 85,808,009 km

• M1: 43,234 km (0.047 R)
• M2: 387,010 km (0.06 R)
• M3: 847,921 km (0.051 R)
• M4: 1,845,439 km (0.082 R)
• M5: 2,428,123 km (0.108 R)
• M6: 2,826,353 km (0.097 R)
• M7: 3,354,134 km (0.105 R)
• M8: 4,212,826 km (0.061 R)
• M9: 5,408,711 km (0.119 R)
• M10: 6,396,506 km (0.088 R)
• M11: 7,348,098 km (0.052 R)
• M12: 7,549,157 km (0.099 R)
• M13: 8,121,070 km (0.046 R)
• M14: 10,318,962 km (0.079 R)
• M15: 11,219,541 km (0.107 R)
• M16: 12,810,814 km (0.052 R)
• M17: 13,102,081 km (0.11 R)
• M18: 13,249,435 km (0.056 R)
• M19: 13,547,284 km (0.097 R)
• M20: 16,432,429 km (0.075 R)
• M21: 25,264,238 km (0.117 R)
• M22: 28,709,926 km (0.093 R)
• M23: 29,083,322 km (0.082 R)
• M24: 31,921,044 km (0.107 R)
• M25: 35,935,952 km (0.106 R)
• M26: 36,953,217 km (0.041 R)
• M27: 39,197,185 km (0.052 R)
• M28: 44,782,871 km (0.057 R)
• M29: 45,453,069 km (0.088 R)
• M30: 47,677,589 km (0.098 R)
• M31: 50,875,992 km (0.073 R)
• M32: 58,290,212 km (0.08 R)
• M33: 60,300,957 km (0.11 R)
• M34: 63,613,353 km (0.096 R)
• M35: 65,528,804 km (0.083 R)
• M36: 67,263,541 km (0.07 R)
• M37: 82,757,392 km (0.039 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: 462 - 14,042 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit