🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.52

Radius: 1.18

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.61 AU - 0.65 AU

Year: 318 Days

Day: 30.2 Hours

Environment

Temp: -134 °C

Axial Tilt: 25.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 21,230,303 km

• M1: 175,329 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.2

Radius: 13.1

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.73 AU - 1.15 AU

Year: 579 Days

Day: 9.7 Hours

Environment

Temp: -153 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 21,230,303 km

• M1: 163,062 km (0.109 R)
• M2: 631,153 km (0.1 R)
• M3: 1,178,083 km (0.096 R)
• M4: 1,646,773 km (0.036 R)
• M5: 2,685,880 km (0.113 R)
• M6: 3,413,973 km (0.067 R)
• M7: 3,881,018 km (0.078 R)
• M8: 4,300,191 km (0.105 R)
• M9: 5,299,505 km (0.118 R)
• M10: 6,079,657 km (0.059 R)
• M11: 6,872,975 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.7

Radius: 9.2

Gravity: 7.19 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.74 AU - 1.2 AU

Year: 607 Days

Day: 7.4 Hours

Environment

Temp: -148 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 21,230,303 km

• M1: 118,332 km (0.068 R)
• M2: 498,909 km (0.058 R)
• M3: 796,459 km (0.099 R)
• M4: 1,105,229 km (0.073 R)
• M5: 1,453,343 km (0.112 R)
• M6: 1,752,090 km (0.089 R)
• M7: 2,056,372 km (0.055 R)
• M8: 2,696,950 km (0.098 R)
• M9: 3,046,710 km (0.032 R)
• M10: 3,648,094 km (0.068 R)
• M11: 4,077,290 km (0.11 R)
• M12: 4,633,345 km (0.08 R)
• M13: 5,205,108 km (0.07 R)
• M14: 5,641,784 km (0.105 R)
• M15: 6,102,546 km (0.047 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.6

Radius: 13.3

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.03 AU - 1.11 AU

Year: 704 Days

Day: 9.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 21,230,303 km

• M1: 165,455 km (0.115 R)
• M2: 607,966 km (0.061 R)
• M3: 1,320,500 km (0.108 R)
• M4: 1,947,016 km (0.105 R)
• M5: 2,403,140 km (0.075 R)
• M6: 3,037,136 km (0.086 R)
• M7: 4,557,200 km (0.119 R)
• M8: 5,277,813 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.1

Radius: 13.5

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.58 AU - 2.12 AU

Year: 1600 Days

Day: 11.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 21,230,303 km

• M1: 167,849 km (0.095 R)
• M2: 603,478 km (0.097 R)
• M3: 1,035,068 km (0.043 R)
• M4: 1,508,994 km (0.103 R)
• M5: 2,092,575 km (0.11 R)
• M6: 3,039,230 km (0.102 R)
• M7: 3,515,550 km (0.065 R)
• M8: 4,041,686 km (0.056 R)
• M9: 4,752,425 km (0.113 R)
• M10: 5,398,239 km (0.117 R)
• M11: 5,867,228 km (0.112 R)
• M12: 6,424,780 km (0.092 R)
• M13: 7,786,420 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 81.5

Radius: 14.3

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 2.42 AU - 3.36 AU

Year: 3124 Days

Day: 7.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,230,303 km

• M1: 177,872 km (0.093 R)
• M2: 1,080,994 km (0.036 R)
• M3: 1,536,520 km (0.095 R)
• M4: 2,144,485 km (0.034 R)
• M5: 2,661,047 km (0.118 R)
• M6: 4,451,584 km (0.089 R)
• M7: 5,302,796 km (0.119 R)
• M8: 8,764,939 km (0.063 R)
• M9: 10,536,627 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 114.6

Radius: 13.7

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 3.29 AU - 4.39 AU

Year: 4784 Days

Day: 9.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 21,230,303 km

• M1: 170,392 km (0.113 R)
• M2: 674,836 km (0.046 R)
• M3: 1,170,603 km (0.106 R)
• M4: 1,636,900 km (0.044 R)
• M5: 2,097,512 km (0.073 R)
• M6: 2,591,035 km (0.08 R)
• M7: 3,257,344 km (0.096 R)
• M8: 3,816,840 km (0.074 R)
• M9: 4,540,445 km (0.12 R)
• M10: 6,137,253 km (0.118 R)
• M11: 9,747,348 km (0.097 R)
• M12: 10,953,556 km (0.102 R)
• M13: 13,363,727 km (0.115 R)
• M14: 14,050,531 km (0.107 R)
• M15: 14,805,851 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 559.2

Radius: 5.9

Gravity: 16.06 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 5.47 AU - 8.19 AU

Year: 11349 Days

Day: 16.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 21,230,303 km

• M1: 74,949 km (0.11 R)
• M2: 276,457 km (0.091 R)
• M3: 642,672 km (0.12 R)
• M4: 1,260,362 km (0.119 R)
• M5: 1,919,490 km (0.096 R)
• M6: 2,177,995 km (0.051 R)
• M7: 2,598,964 km (0.054 R)
• M8: 3,141,705 km (0.054 R)
• M9: 4,051,858 km (0.085 R)
• M10: 9,816,911 km (0.088 R)
• M11: 10,325,095 km (0.099 R)
• M12: 12,127,301 km (0.054 R)
• M13: 13,438,975 km (0.07 R)
• M14: 15,041,168 km (0.111 R)
• M15: 18,619,849 km (0.051 R)
• M16: 19,955,309 km (0.096 R)
• M17: 29,333,450 km (0.105 R)
• M18: 37,112,389 km (0.098 R)
• M19: 39,600,202 km (0.084 R)
• M20: 44,767,013 km (0.051 R)
• M21: 47,871,019 km (0.066 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 872.7

Radius: 7.5

Gravity: 15.51 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 5.42 AU - 8.24 AU

Year: 11349 Days

Day: 16.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 21,230,303 km

• M1: 93,349 km (0.069 R)
• M2: 1,018,163 km (0.118 R)
• M3: 1,305,989 km (0.114 R)
• M4: 1,857,407 km (0.113 R)
• M5: 3,678,612 km (0.093 R)
• M6: 4,426,152 km (0.101 R)
• M7: 6,980,835 km (0.029 R)
• M8: 7,405,843 km (0.115 R)
• M9: 9,180,073 km (0.086 R)
• M10: 12,592,550 km (0.1 R)
• M11: 14,820,511 km (0.069 R)
• M12: 16,692,280 km (0.065 R)
• M13: 18,555,073 km (0.108 R)
• M14: 18,878,503 km (0.03 R)
• M15: 19,288,102 km (0.099 R)
• M16: 24,000,884 km (0.102 R)
• M17: 29,209,882 km (0.106 R)
• M18: 36,751,410 km (0.091 R)
• M19: 48,793,141 km (0.057 R)
• M20: 49,255,099 km (0.115 R)
• M21: 56,537,224 km (0.071 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 15.5

Radius: 6.9

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 9.11 AU - 10.55 AU

Year: 19596 Days

Day: 15.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 21,230,303 km

• M1: 87,964 km (0.096 R)
• M2: 939,026 km (0.027 R)
• M3: 4,406,405 km (0.072 R)
• M4: 5,149,608 km (0.112 R)
• M5: 8,043,878 km (0.092 R)
• M6: 10,871,277 km (0.11 R)
• M7: 16,283,728 km (0.09 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 452 - 16,159 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit