🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.83

Radius: 0.93

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.39 AU - 0.63 AU

Year: 239 Days

Day: 27.2 Hours

Environment

Temp: -126 °C

Axial Tilt: 31.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.77

Radius: 1.26

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.42 AU - 0.6 AU

Year: 239 Days

Day: 44.4 Hours

Environment

Temp: -108 °C

Axial Tilt: 18.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,576,831 km

• M1: 62,382 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.9

Radius: 9.5

Gravity: 5.48 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.54 AU - 0.82 AU

Year: 368 Days

Day: 10 Hours

Environment

Temp: -140 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,576,831 km

• M1: 118,182 km (0.12 R)
• M2: 437,873 km (0.101 R)
• M3: 812,765 km (0.101 R)
• M4: 1,125,275 km (0.114 R)
• M5: 1,470,098 km (0.044 R)
• M6: 1,945,221 km (0.089 R)
• M7: 2,694,706 km (0.094 R)
• M8: 3,311,947 km (0.109 R)
• M9: 3,625,654 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.9

Radius: 10.7

Gravity: 6.98 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 3.59 AU - 4.01 AU

Year: 4859 Days

Day: 7.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 87.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,576,831 km

• M1: 133,441 km (0.047 R)
• M2: 717,471 km (0.075 R)
• M3: 1,290,132 km (0.071 R)
• M4: 2,046,798 km (0.07 R)
• M5: 2,433,658 km (0.111 R)
• M6: 3,019,783 km (0.11 R)
• M7: 3,357,126 km (0.043 R)
• M8: 3,741,892 km (0.105 R)
• M9: 4,888,260 km (0.096 R)
• M10: 11,675,216 km (0.116 R)
• M11: 12,163,504 km (0.1 R)
• M12: 14,982,825 km (0.095 R)
• M13: 16,332,048 km (0.099 R)
• M14: 17,005,239 km (0.06 R)
• M15: 17,952,941 km (0.1 R)
• M16: 18,406,971 km (0.101 R)
• M17: 19,338,218 km (0.047 R)
• M18: 22,695,194 km (0.101 R)
• M19: 24,630,242 km (0.088 R)
• M20: 26,673,001 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.7

Radius: 11.6

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 4.46 AU - 4.92 AU

Year: 6663 Days

Day: 13.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 35,576,831 km

• M1: 144,212 km (0.072 R)
• M2: 549,174 km (0.114 R)
• M3: 1,434,195 km (0.117 R)
• M4: 2,495,592 km (0.1 R)
• M5: 3,133,776 km (0.083 R)
• M6: 4,069,660 km (0.077 R)
• M7: 4,497,959 km (0.033 R)
• M8: 5,327,779 km (0.103 R)
• M9: 6,388,577 km (0.114 R)
• M10: 6,829,592 km (0.081 R)
• M11: 7,547,961 km (0.079 R)
• M12: 8,719,013 km (0.075 R)
• M13: 9,220,016 km (0.082 R)
• M14: 10,464,072 km (0.097 R)
• M15: 13,174,486 km (0.051 R)
• M16: 13,835,110 km (0.105 R)
• M17: 14,344,940 km (0.086 R)
• M18: 14,984,920 km (0.117 R)
• M19: 16,700,508 km (0.038 R)
• M20: 22,011,980 km (0.108 R)
• M21: 25,806,081 km (0.077 R)
• M22: 26,233,782 km (0.098 R)
• M23: 27,015,431 km (0.117 R)
• M24: 29,361,275 km (0.112 R)
• M25: 31,937,949 km (0.038 R)
• M26: 34,043,389 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 434.7

Radius: 13.8

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 4.4 AU - 6.22 AU

Year: 8027 Days

Day: 14.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,576,831 km

• M1: 172,337 km (0.12 R)
• M2: 667,207 km (0.11 R)
• M3: 1,575,565 km (0.095 R)
• M4: 2,176,350 km (0.12 R)
• M5: 2,966,975 km (0.06 R)
• M6: 3,754,458 km (0.095 R)
• M7: 4,623,921 km (0.087 R)
• M8: 5,654,201 km (0.036 R)
• M9: 6,625,390 km (0.11 R)
• M10: 8,207,986 km (0.072 R)
• M11: 9,024,641 km (0.063 R)
• M12: 10,677,847 km (0.118 R)
• M13: 11,903,951 km (0.067 R)
• M14: 12,577,740 km (0.04 R)
• M15: 13,167,455 km (0.09 R)
• M16: 16,398,320 km (0.1 R)
• M17: 19,550,497 km (0.105 R)
• M18: 20,710,030 km (0.061 R)
• M19: 21,156,430 km (0.057 R)
• M20: 28,834,242 km (0.104 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 261 - 15,615 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit