🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.9

Radius: 13.9

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.69 AU - 0.79 AU

Year: 432 Days

Day: 7.9 Hours

Environment

Temp: -154 °C

Axial Tilt: 78.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 83,492,794 km

• M1: 177,573 km (0.072 R)
• M2: 644,168 km (0.047 R)
• M3: 1,177,485 km (0.116 R)
• M4: 1,727,706 km (0.107 R)
• M5: 2,293,186 km (0.116 R)
• M6: 3,635,228 km (0.059 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.4

Radius: 11

Gravity: 5.65 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.66 AU - 0.96 AU

Year: 494 Days

Day: 11.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 83,492,794 km

• M1: 141,520 km (0.119 R)
• M2: 502,798 km (0.057 R)
• M3: 945,309 km (0.11 R)
• M4: 1,960,779 km (0.119 R)
• M5: 2,706,375 km (0.044 R)
• M6: 3,406,792 km (0.078 R)
• M7: 4,028,970 km (0.077 R)
• M8: 4,864,624 km (0.029 R)
• M9: 6,026,401 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.4

Radius: 8.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.81 AU - 1.01 AU

Year: 589 Days

Day: 7.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 83,492,794 km

• M1: 109,506 km (0.043 R)
• M2: 385,813 km (0.116 R)
• M3: 665,561 km (0.06 R)
• M4: 1,029,383 km (0.11 R)
• M5: 1,541,756 km (0.116 R)
• M6: 2,003,415 km (0.047 R)
• M7: 2,538,975 km (0.101 R)
• M8: 2,858,367 km (0.117 R)
• M9: 3,358,771 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 312.8

Radius: 14.4

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.15 AU - 1.65 AU

Year: 1124 Days

Day: 9.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 83,492,794 km

• M1: 179,368 km (0.064 R)
• M2: 666,907 km (0.095 R)
• M3: 1,250,040 km (0.114 R)
• M4: 1,704,967 km (0.105 R)
• M5: 2,184,727 km (0.108 R)
• M6: 2,676,306 km (0.096 R)
• M7: 3,786,322 km (0.083 R)
• M8: 4,455,473 km (0.1 R)
• M9: 5,758,920 km (0.081 R)
• M10: 6,668,026 km (0.077 R)
• M11: 7,371,435 km (0.06 R)
• M12: 7,883,209 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679.8

Radius: 11.8

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.37 AU - 2.11 AU

Year: 1557 Days

Day: 7.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 83,492,794 km

• M1: 146,756 km (0.08 R)
• M2: 542,891 km (0.035 R)
• M3: 1,036,115 km (0.081 R)
• M4: 1,514,230 km (0.074 R)
• M5: 2,411,817 km (0.11 R)
• M6: 3,253,903 km (0.078 R)
• M7: 3,651,834 km (0.079 R)
• M8: 4,154,333 km (0.1 R)
• M9: 4,722,356 km (0.076 R)
• M10: 5,213,785 km (0.036 R)
• M11: 5,739,023 km (0.091 R)
• M12: 6,819,419 km (0.045 R)
• M13: 7,974,015 km (0.117 R)
• M14: 8,762,994 km (0.111 R)
• M15: 10,496,535 km (0.097 R)
• M16: 12,873,794 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152

Radius: 14.6

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.94 AU - 2.26 AU

Year: 2064 Days

Day: 7.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 83,492,794 km

• M1: 181,761 km (0.093 R)
• M2: 995,275 km (0.047 R)
• M3: 1,801,757 km (0.063 R)
• M4: 2,363,946 km (0.112 R)
• M5: 3,408,887 km (0.082 R)
• M6: 4,923,266 km (0.078 R)
• M7: 7,057,579 km (0.111 R)
• M8: 9,154,043 km (0.027 R)
• M9: 10,045,796 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 808.6

Radius: 6.5

Gravity: 19.14 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 8.04 AU - 11.78 AU

Year: 21159 Days

Day: 15.4 Hours

Environment

Temp: -241 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 83,492,794 km

• M1: 82,428 km (0.043 R)
• M2: 448,794 km (0.115 R)
• M3: 875,596 km (0.059 R)
• M4: 1,292,526 km (0.118 R)
• M5: 1,704,518 km (0.046 R)
• M6: 2,788,504 km (0.1 R)
• M7: 3,505,976 km (0.076 R)
• M8: 5,663,027 km (0.095 R)
• M9: 9,954,392 km (0.119 R)
• M10: 10,507,306 km (0.09 R)
• M11: 13,215,177 km (0.103 R)
• M12: 16,865,814 km (0.109 R)
• M13: 21,337,593 km (0.113 R)
• M14: 22,255,675 km (0.032 R)
• M15: 25,962,561 km (0.103 R)
• M16: 37,717,812 km (0.114 R)
• M17: 49,873,387 km (0.103 R)
• M18: 50,765,738 km (0.04 R)
• M19: 55,960,375 km (0.074 R)
• M20: 60,888,129 km (0.088 R)
• M21: 61,498,189 km (0.045 R)
• M22: 63,353,053 km (0.038 R)
• M23: 69,140,545 km (0.072 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: 191 - 16,172 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit