🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.6

Radius: 12

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.51 AU - 0.61 AU

Year: 279 Days

Day: 10.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 28,445,383 km

• M1: 149,299 km (0.083 R)
• M2: 626,516 km (0.071 R)
• M3: 1,019,061 km (0.086 R)
• M4: 1,610,122 km (0.052 R)
• M5: 2,429,619 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 866.6

Radius: 11.8

Gravity: 6.22 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.58 AU - 0.66 AU

Year: 326 Days

Day: 14.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 153.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 28,445,383 km

• M1: 146,756 km (0.114 R)
• M2: 535,710 km (0.105 R)
• M3: 1,098,348 km (0.1 R)
• M4: 1,798,466 km (0.119 R)
• M5: 2,297,375 km (0.111 R)
• M6: 2,817,526 km (0.117 R)
• M7: 3,369,842 km (0.082 R)
• M8: 3,930,534 km (0.051 R)
• M9: 4,566,475 km (0.045 R)
• M10: 5,027,835 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 330.2

Radius: 13.2

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.53 AU - 0.77 AU

Year: 349 Days

Day: 7.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 28,445,383 km

• M1: 167,101 km (0.097 R)
• M2: 603,777 km (0.09 R)
• M3: 1,141,432 km (0.101 R)
• M4: 2,085,544 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.5

Radius: 10.8

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.77 AU - 0.81 AU

Year: 468 Days

Day: 13.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 28,445,383 km

• M1: 134,339 km (0.112 R)
• M2: 636,090 km (0.091 R)
• M3: 1,000,511 km (0.114 R)
• M4: 1,419,235 km (0.106 R)
• M5: 2,018,823 km (0.07 R)
• M6: 2,535,684 km (0.117 R)
• M7: 3,009,311 km (0.115 R)
• M8: 4,809,721 km (0.061 R)
• M9: 5,426,214 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 455.7

Radius: 14.7

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.78 AU - 1.16 AU

Year: 637 Days

Day: 13.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 28,445,383 km

• M1: 182,809 km (0.088 R)
• M2: 643,420 km (0.091 R)
• M3: 1,245,253 km (0.106 R)
• M4: 1,860,698 km (0.098 R)
• M5: 2,343,301 km (0.052 R)
• M6: 3,383,455 km (0.082 R)
• M7: 4,413,586 km (0.062 R)
• M8: 4,931,045 km (0.073 R)
• M9: 5,678,586 km (0.11 R)
• M10: 6,292,834 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903

Radius: 8.1

Gravity: 13.76 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.85 AU - 1.41 AU

Year: 801 Days

Day: 6.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 158.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 28,445,383 km

• M1: 100,679 km (0.112 R)
• M2: 383,120 km (0.103 R)
• M3: 635,342 km (0.115 R)
• M4: 958,174 km (0.079 R)
• M5: 1,210,247 km (0.11 R)
• M6: 1,467,705 km (0.097 R)
• M7: 1,771,089 km (0.118 R)
• M8: 2,045,751 km (0.105 R)
• M9: 3,139,910 km (0.077 R)
• M10: 3,458,852 km (0.094 R)
• M11: 3,738,600 km (0.08 R)
• M12: 4,343,724 km (0.034 R)
• M13: 4,830,066 km (0.113 R)
• M14: 5,829,530 km (0.115 R)
• M15: 6,465,620 km (0.108 R)
• M16: 7,384,450 km (0.11 R)
• M17: 8,705,848 km (0.097 R)
• M18: 9,004,296 km (0.038 R)
• M19: 9,708,453 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 613

Radius: 13.5

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.12 AU - 1.22 AU

Year: 844 Days

Day: 13.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 113.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 28,445,383 km

• M1: 167,998 km (0.12 R)
• M2: 661,671 km (0.078 R)
• M3: 1,174,942 km (0.097 R)
• M4: 1,732,194 km (0.111 R)
• M5: 2,778,631 km (0.061 R)
• M6: 3,288,610 km (0.112 R)
• M7: 4,148,499 km (0.054 R)
• M8: 4,836,050 km (0.076 R)
• M9: 5,317,456 km (0.1 R)
• M10: 6,009,047 km (0.104 R)
• M11: 7,317,879 km (0.088 R)
• M12: 8,577,044 km (0.095 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.7

Radius: 12.8

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 4.29 AU - 6.65 AU

Year: 8531 Days

Day: 5.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 28,445,383 km

• M1: 159,172 km (0.117 R)
• M2: 813,962 km (0.117 R)
• M3: 1,711,250 km (0.109 R)
• M4: 2,330,585 km (0.094 R)
• M5: 3,823,722 km (0.105 R)
• M6: 6,392,018 km (0.076 R)
• M7: 11,208,321 km (0.057 R)
• M8: 13,123,174 km (0.1 R)
• M9: 13,894,650 km (0.082 R)
• M10: 14,318,311 km (0.032 R)
• M11: 14,750,649 km (0.096 R)
• M12: 17,225,746 km (0.055 R)
• M13: 21,757,215 km (0.068 R)
• M14: 26,457,281 km (0.082 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 309 - 15,222 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit