🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 752.3

Radius: 13.1

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.55 AU - 0.59 AU

Year: 297 Days

Day: 7.6 Hours

Environment

Temp: -138 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 71,644,007 km

• M1: 162,912 km (0.06 R)
• M2: 572,062 km (0.079 R)
• M3: 1,132,605 km (0.034 R)
• M4: 1,680,732 km (0.117 R)
• M5: 2,447,122 km (0.084 R)
• M6: 3,273,650 km (0.077 R)
• M7: 3,799,936 km (0.072 R)
• M8: 4,421,365 km (0.06 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370.1

Radius: 13

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.68 AU - 0.72 AU

Year: 404 Days

Day: 11.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 71,644,007 km

• M1: 161,715 km (0.038 R)
• M2: 643,271 km (0.055 R)
• M3: 1,068,278 km (0.111 R)
• M4: 1,496,128 km (0.061 R)
• M5: 2,124,739 km (0.112 R)
• M6: 2,772,647 km (0.076 R)
• M7: 3,226,676 km (0.07 R)
• M8: 3,742,041 km (0.094 R)
• M9: 4,274,011 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.4

Radius: 10.1

Gravity: 9.79 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 1.2 AU - 1.56 AU

Year: 1119 Days

Day: 11.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,644,007 km

• M1: 125,662 km (0.061 R)
• M2: 476,619 km (0.053 R)
• M3: 1,078,002 km (0.087 R)
• M4: 1,852,171 km (0.047 R)
• M5: 2,193,105 km (0.119 R)
• M6: 2,757,538 km (0.047 R)
• M7: 3,117,769 km (0.103 R)
• M8: 3,540,982 km (0.05 R)
• M9: 4,541,043 km (0.104 R)
• M10: 5,106,972 km (0.051 R)
• M11: 5,438,930 km (0.063 R)
• M12: 5,941,579 km (0.109 R)
• M13: 7,141,354 km (0.102 R)
• M14: 7,880,217 km (0.096 R)
• M15: 8,524,535 km (0.111 R)
• M16: 9,634,402 km (0.101 R)
• M17: 10,437,144 km (0.109 R)
• M18: 11,076,526 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 166.4

Radius: 14.5

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.4 AU - 2.18 AU

Year: 1653 Days

Day: 9.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 98.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 71,644,007 km

• M1: 181,313 km (0.05 R)
• M2: 676,332 km (0.054 R)
• M3: 1,487,152 km (0.101 R)
• M4: 2,174,255 km (0.088 R)
• M5: 2,753,199 km (0.042 R)
• M6: 3,313,294 km (0.104 R)
• M7: 4,599,387 km (0.054 R)
• M8: 6,033,881 km (0.062 R)
• M9: 7,235,600 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.4

Radius: 11.2

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 2.12 AU - 2.56 AU

Year: 2471 Days

Day: 9.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 71,644,007 km

• M1: 165,306 km (0.085 R)
• M2: 763,697 km (0.118 R)
• M3: 1,864,139 km (0.065 R)
• M4: 2,275,533 km (0.118 R)
• M5: 4,611,205 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.2

Radius: 9.4

Gravity: 5.79 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 4.31 AU - 4.55 AU

Year: 6436 Days

Day: 11.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 47.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 71,644,007 km

• M1: 117,135 km (0.052 R)
• M2: 937,530 km (0.097 R)
• M3: 1,298,659 km (0.102 R)
• M4: 1,752,689 km (0.094 R)
• M5: 3,219,346 km (0.109 R)
• M6: 3,534,250 km (0.054 R)
• M7: 6,097,310 km (0.094 R)
• M8: 6,450,361 km (0.045 R)
• M9: 9,570,823 km (0.082 R)
• M10: 10,818,020 km (0.025 R)
• M11: 14,292,730 km (0.078 R)
• M12: 16,342,819 km (0.114 R)
• M13: 19,670,175 km (0.114 R)
• M14: 20,300,880 km (0.065 R)
• M15: 20,945,048 km (0.072 R)
• M16: 22,959,384 km (0.057 R)
• M17: 23,737,143 km (0.108 R)
• M18: 29,317,293 km (0.103 R)
• M19: 29,864,223 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 845.7

Radius: 7.5

Gravity: 15.03 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 7.33 AU - 9.23 AU

Year: 16446 Days

Day: 15.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 71,644,007 km

• M1: 93,199 km (0.104 R)
• M2: 391,946 km (0.082 R)
• M3: 876,045 km (0.059 R)
• M4: 1,948,961 km (0.104 R)
• M5: 2,735,397 km (0.106 R)
• M6: 3,459,451 km (0.089 R)
• M7: 3,836,288 km (0.082 R)
• M8: 4,240,352 km (0.088 R)
• M9: 4,638,282 km (0.106 R)
• M10: 7,103,206 km (0.059 R)
• M11: 8,155,478 km (0.054 R)
• M12: 8,666,653 km (0.087 R)
• M13: 9,866,428 km (0.112 R)
• M14: 11,173,166 km (0.073 R)
• M15: 11,675,815 km (0.097 R)
• M16: 18,241,067 km (0.083 R)
• M17: 20,945,647 km (0.116 R)
• M18: 22,690,556 km (0.115 R)
• M19: 25,058,242 km (0.106 R)
• M20: 27,472,602 km (0.086 R)
• M21: 28,736,105 km (0.116 R)
• M22: 32,758,493 km (0.107 R)
• M23: 35,773,937 km (0.09 R)
• M24: 41,005,076 km (0.027 R)
• M25: 45,128,890 km (0.118 R)
• M26: 47,862,492 km (0.027 R)
• M27: 56,538,870 km (0.089 R)
• M28: 62,217,306 km (0.052 R)
• M29: 62,608,803 km (0.109 R)
• M30: 65,597,918 km (0.084 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 477 - 19,084 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit