🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.52 AU - 0.82 AU

Year: 354 Days

Day: 33.9 Hours

Environment

Temp: -129 °C

Axial Tilt: 2.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 50,441,250 km

• M1: 337,942 km (0.041 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.9

Radius: 8.7

Gravity: 11.26 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.57 AU - 0.91 AU

Year: 411 Days

Day: 6.4 Hours

Environment

Temp: -134 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,441,250 km

• M1: 108,608 km (0.1 R)
• M2: 433,983 km (0.083 R)
• M3: 771,027 km (0.118 R)
• M4: 1,236,875 km (0.11 R)
• M5: 1,741,618 km (0.032 R)
• M6: 2,072,230 km (0.099 R)
• M7: 2,591,933 km (0.101 R)
• M8: 3,544,123 km (0.108 R)
• M9: 4,461,009 km (0.07 R)
• M10: 4,789,077 km (0.033 R)
• M11: 5,197,778 km (0.112 R)
• M12: 5,819,357 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.9

Radius: 13.8

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.89 AU - 1.43 AU

Year: 807 Days

Day: 12 Hours

Environment

Temp: -164 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 50,441,250 km

• M1: 172,337 km (0.119 R)
• M2: 664,215 km (0.106 R)
• M3: 1,136,794 km (0.1 R)
• M4: 1,570,927 km (0.056 R)
• M5: 2,128,628 km (0.073 R)
• M6: 3,456,459 km (0.115 R)
• M7: 4,285,231 km (0.086 R)
• M8: 4,833,507 km (0.086 R)
• M9: 5,409,609 km (0.106 R)
• M10: 6,051,533 km (0.1 R)
• M11: 6,486,115 km (0.058 R)
• M12: 7,098,120 km (0.085 R)
• M13: 7,844,613 km (0.114 R)
• M14: 8,720,509 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981.4

Radius: 8.3

Gravity: 14.25 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.08 AU - 1.34 AU

Year: 859 Days

Day: 5.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 50,441,250 km

• M1: 103,223 km (0.118 R)
• M2: 702,512 km (0.119 R)
• M3: 978,819 km (0.077 R)
• M4: 1,359,396 km (0.095 R)
• M5: 1,818,063 km (0.089 R)
• M6: 2,104,842 km (0.089 R)
• M7: 2,376,512 km (0.076 R)
• M8: 4,257,555 km (0.092 R)
• M9: 6,661,743 km (0.111 R)
• M10: 7,473,760 km (0.103 R)
• M11: 7,826,661 km (0.067 R)
• M12: 8,217,112 km (0.073 R)
• M13: 8,924,710 km (0.117 R)
• M14: 9,850,421 km (0.094 R)
• M15: 10,491,897 km (0.034 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.1

Radius: 8.9

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 2.24 AU - 2.78 AU

Year: 2568 Days

Day: 11.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 50,441,250 km

• M1: 110,702 km (0.092 R)
• M2: 404,961 km (0.116 R)
• M3: 704,756 km (0.111 R)
• M4: 1,096,852 km (0.081 R)
• M5: 1,498,522 km (0.047 R)
• M6: 1,893,011 km (0.098 R)
• M7: 2,811,243 km (0.111 R)
• M8: 3,732,916 km (0.105 R)
• M9: 4,862,978 km (0.06 R)
• M10: 5,306,984 km (0.089 R)
• M11: 6,206,516 km (0.097 R)
• M12: 6,852,330 km (0.112 R)
• M13: 8,027,272 km (0.075 R)
• M14: 8,764,640 km (0.101 R)
• M15: 9,795,968 km (0.059 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 529.6

Radius: 9.1

Gravity: 6.4 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 3.8 AU - 4.12 AU

Year: 5088 Days

Day: 9.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 50,441,250 km

• M1: 113,246 km (0.09 R)
• M2: 693,985 km (0.06 R)
• M3: 977,772 km (0.12 R)
• M4: 1,527,693 km (0.089 R)
• M5: 1,954,496 km (0.089 R)
• M6: 3,068,402 km (0.069 R)
• M7: 3,583,019 km (0.107 R)
• M8: 3,949,833 km (0.096 R)
• M9: 4,912,944 km (0.087 R)
• M10: 6,025,204 km (0.054 R)
• M11: 6,577,220 km (0.071 R)
• M12: 6,996,543 km (0.113 R)
• M13: 7,817,686 km (0.057 R)
• M14: 8,855,147 km (0.112 R)
• M15: 9,247,093 km (0.094 R)
• M16: 9,815,266 km (0.086 R)
• M17: 10,235,187 km (0.081 R)
• M18: 11,988,773 km (0.111 R)
• M19: 12,468,833 km (0.094 R)
• M20: 15,230,410 km (0.11 R)
• M21: 17,999,616 km (0.077 R)
• M22: 21,365,867 km (0.097 R)
• M23: 23,307,647 km (0.069 R)
• M24: 23,829,744 km (0.102 R)
• M25: 25,364,319 km (0.08 R)
• M26: 25,996,220 km (0.08 R)
• M27: 26,719,676 km (0.107 R)
• M28: 27,127,330 km (0.068 R)
• M29: 27,788,104 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270.1

Radius: 8

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 3.82 AU - 5.04 AU

Year: 6020 Days

Day: 9.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 50,441,250 km

• M1: 99,782 km (0.105 R)
• M2: 480,209 km (0.118 R)
• M3: 1,661,284 km (0.045 R)
• M4: 2,284,359 km (0.102 R)
• M5: 3,430,130 km (0.078 R)
• M6: 3,836,737 km (0.11 R)
• M7: 6,551,340 km (0.113 R)
• M8: 7,473,162 km (0.118 R)
• M9: 8,515,260 km (0.119 R)
• M10: 9,809,731 km (0.068 R)
• M11: 12,975,671 km (0.056 R)
• M12: 14,115,606 km (0.081 R)
• M13: 17,874,851 km (0.113 R)
• M14: 22,740,223 km (0.106 R)
• M15: 23,022,065 km (0.09 R)
• M16: 23,954,209 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 314

Radius: 4.4

Gravity: 16.22 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 8.25 AU - 8.71 AU

Year: 15944 Days

Day: 15.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 50,441,250 km

• M1: 54,902 km (0.063 R)
• M2: 281,094 km (0.087 R)
• M3: 555,457 km (0.054 R)
• M4: 1,584,989 km (0.087 R)
• M5: 1,881,941 km (0.08 R)
• M6: 2,123,841 km (0.067 R)
• M7: 3,426,689 km (0.105 R)
• M8: 3,761,190 km (0.117 R)
• M9: 4,405,657 km (0.06 R)
• M10: 14,805,552 km (0.063 R)
• M11: 15,345,301 km (0.117 R)
• M12: 18,939,838 km (0.082 R)
• M13: 21,141,919 km (0.074 R)
• M14: 25,755,966 km (0.106 R)
• M15: 32,552,646 km (0.105 R)
• M16: 41,372,937 km (0.113 R)
• M17: 46,899,830 km (0.056 R)
• M18: 47,333,065 km (0.104 R)
• M19: 47,623,435 km (0.098 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: 271 - 17,983 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit