🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.94

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.48 AU - 0.74 AU

Year: 308 Days

Day: 40.5 Hours

Environment

Temp: -128 °C

Axial Tilt: 11.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 33,421,169 km

• M1: 44,131 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.9

Radius: 12.7

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.9 AU - 1.16 AU

Year: 675 Days

Day: 5.2 Hours

Environment

Temp: -164 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 33,421,169 km

• M1: 158,723 km (0.104 R)
• M2: 756,068 km (0.042 R)
• M3: 1,191,547 km (0.061 R)
• M4: 2,472,703 km (0.093 R)
• M5: 3,127,792 km (0.088 R)
• M6: 3,576,885 km (0.082 R)
• M7: 4,196,071 km (0.094 R)
• M8: 4,730,883 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.8

Radius: 8.9

Gravity: 6.06 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.12 AU - 1.58 AU

Year: 1013 Days

Day: 8.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 33,421,169 km

• M1: 110,852 km (0.105 R)
• M2: 390,899 km (0.096 R)
• M3: 894,446 km (0.101 R)
• M4: 1,273,676 km (0.112 R)
• M5: 1,672,953 km (0.089 R)
• M6: 2,104,393 km (0.074 R)
• M7: 2,562,911 km (0.109 R)
• M8: 3,125,848 km (0.109 R)
• M9: 4,122,169 km (0.025 R)
• M10: 4,414,035 km (0.099 R)
• M11: 5,802,453 km (0.089 R)
• M12: 6,170,015 km (0.032 R)
• M13: 7,700,999 km (0.093 R)
• M14: 8,476,963 km (0.096 R)
• M15: 9,058,600 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 366

Radius: 11.9

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 2.27 AU - 3.35 AU

Year: 3041 Days

Day: 14.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 33,421,169 km

• M1: 153,787 km (0.08 R)
• M2: 530,923 km (0.103 R)
• M3: 915,240 km (0.118 R)
• M4: 1,350,121 km (0.084 R)
• M5: 1,868,029 km (0.076 R)
• M6: 2,381,000 km (0.03 R)
• M7: 2,909,828 km (0.095 R)
• M8: 3,344,410 km (0.111 R)
• M9: 3,934,424 km (0.096 R)
• M10: 5,094,555 km (0.059 R)
• M11: 6,028,794 km (0.089 R)
• M12: 6,417,300 km (0.114 R)
• M13: 7,159,006 km (0.12 R)
• M14: 7,565,613 km (0.08 R)
• M15: 8,457,216 km (0.066 R)
• M16: 11,713,364 km (0.064 R)
• M17: 14,681,834 km (0.058 R)
• M18: 15,340,214 km (0.095 R)
• M19: 17,072,558 km (0.04 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.6

Radius: 12.4

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 4.41 AU - 5.79 AU

Year: 7437 Days

Day: 6.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 33,421,169 km

• M1: 171,738 km (0.057 R)
• M2: 566,078 km (0.092 R)
• M3: 2,774,442 km (0.092 R)
• M4: 4,754,220 km (0.091 R)
• M5: 5,433,694 km (0.103 R)
• M6: 6,622,099 km (0.115 R)
• M7: 8,162,957 km (0.093 R)
• M8: 8,857,840 km (0.062 R)
• M9: 10,366,085 km (0.117 R)
• M10: 12,137,025 km (0.099 R)
• M11: 12,736,015 km (0.062 R)
• M12: 13,146,362 km (0.048 R)
• M13: 14,820,212 km (0.074 R)
• M14: 18,261,861 km (0.117 R)
• M15: 19,383,695 km (0.111 R)
• M16: 22,130,163 km (0.12 R)
• M17: 26,100,490 km (0.102 R)
• M18: 26,931,207 km (0.099 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 148.6

Radius: 3.1

Gravity: 15.46 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 6 AU - 8.42 AU

Year: 12500 Days

Day: 15.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 33,421,169 km

• M1: 38,596 km (0.102 R)
• M2: 274,811 km (0.066 R)
• M3: 505,790 km (0.105 R)
• M4: 1,023,399 km (0.065 R)
• M5: 1,327,532 km (0.078 R)
• M6: 1,482,066 km (0.081 R)
• M7: 2,158,996 km (0.075 R)
• M8: 2,339,262 km (0.038 R)
• M9: 3,846,909 km (0.087 R)
• M10: 4,414,932 km (0.115 R)
• M11: 6,351,776 km (0.103 R)
• M12: 6,518,278 km (0.079 R)
• M13: 6,653,515 km (0.048 R)
• M14: 9,079,843 km (0.099 R)
• M15: 15,698,202 km (0.119 R)
• M16: 18,988,607 km (0.114 R)
• M17: 19,473,304 km (0.112 R)
• M18: 20,108,497 km (0.11 R)
• M19: 20,830,456 km (0.116 R)
• M20: 21,794,465 km (0.095 R)
• M21: 21,945,409 km (0.076 R)
• M22: 24,374,430 km (0.084 R)
• M23: 24,700,404 km (0.092 R)
• M24: 27,325,547 km (0.08 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 488 - 13,366 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit