🌌 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: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 500.9

Radius: 9.2

Gravity: 5.92 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.45 AU - 0.71 AU

Year: 300 Days

Day: 11.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 31,703,426 km

• M1: 114,442 km (0.086 R)
• M2: 418,874 km (0.113 R)
• M3: 770,279 km (0.112 R)
• M4: 1,377,048 km (0.052 R)
• M5: 1,913,955 km (0.116 R)
• M6: 2,348,088 km (0.117 R)
• M7: 2,727,319 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 552.3

Radius: 11.9

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.69 AU - 0.71 AU

Year: 397 Days

Day: 9 Hours

Environment

Temp: -161 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 31,703,426 km

• M1: 147,952 km (0.11 R)
• M2: 557,551 km (0.077 R)
• M3: 946,955 km (0.084 R)
• M4: 1,415,645 km (0.11 R)
• M5: 1,841,849 km (0.074 R)
• M6: 3,235,802 km (0.097 R)
• M7: 4,501,550 km (0.115 R)
• M8: 4,926,258 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 651.4

Radius: 14.2

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.76 AU - 0.86 AU

Year: 494 Days

Day: 10.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 31,703,426 km

• M1: 176,525 km (0.105 R)
• M2: 620,981 km (0.094 R)
• M3: 1,295,966 km (0.051 R)
• M4: 2,024,957 km (0.1 R)
• M5: 2,678,101 km (0.05 R)
• M6: 3,361,015 km (0.072 R)
• M7: 4,412,240 km (0.114 R)
• M8: 5,320,448 km (0.055 R)
• M9: 6,294,480 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.6

Radius: 12.7

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.85 AU - 1.39 AU

Year: 804 Days

Day: 5.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 31,703,426 km

• M1: 158,574 km (0.077 R)
• M2: 685,009 km (0.073 R)
• M3: 1,225,207 km (0.073 R)
• M4: 1,646,175 km (0.106 R)
• M5: 2,088,685 km (0.095 R)
• M6: 2,601,058 km (0.105 R)
• M7: 3,095,330 km (0.054 R)
• M8: 3,830,753 km (0.089 R)
• M9: 4,331,457 km (0.118 R)
• M10: 5,077,801 km (0.107 R)
• M11: 5,683,971 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34.8

Radius: 14.7

Gravity: 0.16 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.89 AU - 2.29 AU

Year: 2049 Days

Day: 5.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 31,703,426 km

• M1: 182,809 km (0.107 R)
• M2: 642,523 km (0.088 R)
• M3: 1,240,017 km (0.112 R)
• M4: 2,184,279 km (0.054 R)
• M5: 2,668,826 km (0.056 R)
• M6: 3,412,477 km (0.026 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.7

Radius: 13.2

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 2.43 AU - 3.89 AU

Year: 3810 Days

Day: 8.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 31,703,426 km

• M1: 164,109 km (0.087 R)
• M2: 685,906 km (0.105 R)
• M3: 1,443,171 km (0.115 R)
• M4: 3,109,841 km (0.077 R)
• M5: 3,563,571 km (0.086 R)
• M6: 4,257,705 km (0.089 R)
• M7: 5,130,758 km (0.107 R)
• M8: 5,670,806 km (0.084 R)
• M9: 6,592,629 km (0.041 R)
• M10: 7,061,468 km (0.117 R)
• M11: 7,641,609 km (0.026 R)
• M12: 8,316,295 km (0.09 R)
• M13: 9,926,716 km (0.075 R)
• M14: 10,957,446 km (0.1 R)
• M15: 12,552,009 km (0.06 R)
• M16: 13,016,511 km (0.058 R)
• M17: 14,342,097 km (0.089 R)
• M18: 16,546,721 km (0.092 R)
• M19: 17,054,456 km (0.069 R)
• M20: 17,572,514 km (0.039 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 49.9

Radius: 9.5

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 4.24 AU - 6.78 AU

Year: 8772 Days

Day: 9.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 31,703,426 km

• M1: 125,513 km (0.108 R)
• M2: 501,302 km (0.03 R)
• M3: 1,903,932 km (0.102 R)
• M4: 2,909,230 km (0.087 R)
• M5: 3,493,559 km (0.112 R)
• M6: 6,836,623 km (0.037 R)
• M7: 7,746,178 km (0.068 R)
• M8: 10,094,416 km (0.061 R)
• M9: 10,390,021 km (0.085 R)
• M10: 11,751,810 km (0.072 R)
• M11: 15,402,447 km (0.096 R)
• M12: 17,750,087 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 116.4

Radius: 3.2

Gravity: 11.37 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 5.77 AU - 8.59 AU

Year: 13049 Days

Day: 15.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 31,703,426 km

• M1: 41,738 km (0.103 R)
• M2: 1,351,318 km (0.113 R)
• M3: 2,453,405 km (0.098 R)
• M4: 2,610,333 km (0.057 R)
• M5: 4,364,817 km (0.109 R)
• M6: 6,811,041 km (0.103 R)
• M7: 7,513,403 km (0.088 R)
• M8: 8,147,250 km (0.076 R)
• M9: 12,056,242 km (0.056 R)
• M10: 12,156,173 km (0.099 R)
• M11: 12,612,297 km (0.07 R)
• M12: 12,818,742 km (0.049 R)
• M13: 13,344,579 km (0.075 R)
• M14: 14,893,066 km (0.092 R)
• M15: 15,473,955 km (0.041 R)
• M16: 30,115,847 km (0.113 R)
• M17: 30,669,957 km (0.089 R)
• M18: 30,856,206 km (0.072 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: 159 - 18,289 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit