🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.58

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.53 AU - 0.55 AU

Year: 256 Days

Day: 34.7 Hours

Environment

Temp: -129 °C

Axial Tilt: 39.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 32,104,861 km

• M1: 122,371 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.1

Radius: 9.7

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.67 AU - 1.09 AU

Year: 533 Days

Day: 8.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 32,104,861 km

• M1: 120,725 km (0.069 R)
• M2: 448,345 km (0.116 R)
• M3: 893,548 km (0.098 R)
• M4: 1,285,495 km (0.107 R)
• M5: 1,625,530 km (0.099 R)
• M6: 2,040,665 km (0.055 R)
• M7: 2,353,324 km (0.115 R)
• M8: 2,760,380 km (0.113 R)
• M9: 3,459,301 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 607.4

Radius: 11.4

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 2.04 AU - 3.18 AU

Year: 2723 Days

Day: 6.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,104,861 km

• M1: 141,819 km (0.04 R)
• M2: 558,748 km (0.107 R)
• M3: 1,465,162 km (0.102 R)
• M4: 3,284,571 km (0.064 R)
• M5: 3,811,305 km (0.114 R)
• M6: 4,436,325 km (0.088 R)
• M7: 5,128,514 km (0.113 R)
• M8: 5,891,314 km (0.117 R)
• M9: 6,671,766 km (0.066 R)
• M10: 7,279,133 km (0.038 R)
• M11: 7,704,290 km (0.118 R)
• M12: 8,806,079 km (0.076 R)
• M13: 10,158,743 km (0.06 R)
• M14: 11,892,732 km (0.103 R)
• M15: 12,270,466 km (0.112 R)
• M16: 12,961,758 km (0.06 R)
• M17: 15,938,606 km (0.111 R)
• M18: 16,295,247 km (0.075 R)
• M19: 16,657,274 km (0.12 R)
• M20: 17,775,668 km (0.103 R)
• M21: 18,436,890 km (0.073 R)

Asteroid Belt

Center: 3.96 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 602.3

Radius: 14.8

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 4.59 AU - 6.03 AU

Year: 7901 Days

Day: 7 Hours

Environment

Temp: -214 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,104,861 km

• M1: 184,305 km (0.116 R)
• M2: 684,560 km (0.072 R)
• M3: 1,705,715 km (0.092 R)
• M4: 2,361,402 km (0.029 R)
• M5: 3,161,452 km (0.064 R)
• M6: 5,244,453 km (0.104 R)
• M7: 6,232,696 km (0.12 R)
• M8: 7,266,567 km (0.117 R)
• M9: 7,805,269 km (0.097 R)
• M10: 9,358,843 km (0.08 R)
• M11: 10,861,553 km (0.117 R)
• M12: 11,567,655 km (0.065 R)
• M13: 12,143,607 km (0.108 R)
• M14: 13,071,563 km (0.047 R)
• M15: 13,987,700 km (0.101 R)
• M16: 17,602,882 km (0.04 R)
• M17: 21,173,933 km (0.079 R)
• M18: 22,037,412 km (0.086 R)
• M19: 22,924,378 km (0.089 R)
• M20: 24,087,501 km (0.105 R)
• M21: 37,626,856 km (0.096 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 129.3

Radius: 7.3

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 5.37 AU - 7.09 AU

Year: 10040 Days

Day: 21.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 32,104,861 km

• M1: 90,806 km (0.099 R)
• M2: 425,157 km (0.099 R)
• M3: 726,896 km (0.09 R)
• M4: 1,087,277 km (0.092 R)
• M5: 4,465,945 km (0.075 R)
• M6: 6,145,780 km (0.099 R)
• M7: 6,703,331 km (0.107 R)
• M8: 7,777,444 km (0.114 R)
• M9: 8,807,575 km (0.113 R)
• M10: 12,733,920 km (0.044 R)
• M11: 13,587,675 km (0.075 R)
• M12: 14,857,163 km (0.082 R)
• M13: 21,558,250 km (0.087 R)
• M14: 23,874,474 km (0.103 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 622.6

Radius: 7.9

Gravity: 9.98 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 6.05 AU - 8.33 AU

Year: 12448 Days

Day: 15.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 32,104,861 km

• M1: 98,435 km (0.104 R)
• M2: 776,712 km (0.057 R)
• M3: 1,339,799 km (0.098 R)
• M4: 1,822,850 km (0.086 R)
• M5: 2,096,465 km (0.103 R)
• M6: 2,836,974 km (0.105 R)
• M7: 3,378,518 km (0.081 R)
• M8: 3,987,082 km (0.041 R)
• M9: 4,482,401 km (0.041 R)
• M10: 6,407,875 km (0.082 R)
• M11: 7,423,794 km (0.096 R)
• M12: 10,400,792 km (0.09 R)
• M13: 17,947,406 km (0.098 R)
• M14: 23,271,295 km (0.085 R)
• M15: 24,392,382 km (0.104 R)
• M16: 30,432,545 km (0.094 R)
• M17: 46,663,465 km (0.099 R)
• M18: 47,547,589 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 54.6

Radius: 4.3

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 8.29 AU - 11.05 AU

Year: 19416 Days

Day: 17.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 32,104,861 km

• M1: 67,618 km (0.054 R)
• M2: 971,788 km (0.111 R)
• M3: 1,415,944 km (0.09 R)
• M4: 1,826,141 km (0.04 R)
• M5: 2,566,351 km (0.085 R)
• M6: 2,728,216 km (0.075 R)
• M7: 3,894,033 km (0.114 R)
• M8: 4,431,388 km (0.096 R)
• M9: 5,865,134 km (0.09 R)
• M10: 8,221,450 km (0.095 R)
• M11: 8,377,032 km (0.068 R)
• M12: 8,855,596 km (0.101 R)
• M13: 10,087,085 km (0.084 R)
• M14: 11,189,023 km (0.104 R)
• M15: 11,573,490 km (0.072 R)
• M16: 11,818,381 km (0.065 R)
• M17: 13,683,568 km (0.066 R)
• M18: 13,847,377 km (0.117 R)
• M19: 15,088,740 km (0.09 R)
• M20: 17,150,049 km (0.091 R)
• M21: 17,340,488 km (0.119 R)
• M22: 18,780,367 km (0.105 R)
• M23: 28,233,606 km (0.054 R)
• M24: 28,499,142 km (0.08 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 313 - 14,540 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit