🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173

Radius: 8.2

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.58 AU - 0.62 AU

Year: 321 Days

Day: 8.7 Hours

Environment

Temp: -158 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 13,692,708 km

• M1: 102,624 km (0.064 R)
• M2: 362,625 km (0.112 R)
• M3: 834,307 km (0.051 R)
• M4: 1,324,689 km (0.086 R)
• M5: 1,732,343 km (0.043 R)
• M6: 2,179,491 km (0.117 R)
• M7: 2,503,520 km (0.12 R)
• M8: 2,893,672 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.7

Radius: 9

Gravity: 11.79 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.58 AU - 0.76 AU

Year: 379 Days

Day: 5.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 13,692,708 km

• M1: 112,049 km (0.07 R)
• M2: 434,432 km (0.085 R)
• M3: 893,249 km (0.03 R)
• M4: 1,220,719 km (0.086 R)
• M5: 1,537,567 km (0.106 R)
• M6: 1,982,920 km (0.104 R)
• M7: 2,407,179 km (0.097 R)
• M8: 2,722,831 km (0.085 R)
• M9: 3,156,665 km (0.096 R)
• M10: 3,585,861 km (0.071 R)
• M11: 4,650,399 km (0.117 R)
• M12: 4,985,648 km (0.067 R)
• M13: 5,653,902 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.9

Radius: 14.8

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.65 AU - 0.91 AU

Year: 476 Days

Day: 5.9 Hours

Environment

Temp: -154 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 13,692,708 km

• M1: 184,454 km (0.111 R)
• M2: 650,900 km (0.094 R)
• M3: 1,136,794 km (0.051 R)
• M4: 1,778,419 km (0.117 R)
• M5: 2,627,836 km (0.103 R)
• M6: 3,351,441 km (0.098 R)
• M7: 3,826,414 km (0.041 R)
• M8: 5,531,232 km (0.115 R)
• M9: 6,163,133 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 895.1

Radius: 14.2

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.89 AU - 1.37 AU

Year: 829 Days

Day: 13.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 13,692,708 km

• M1: 176,525 km (0.102 R)
• M2: 684,560 km (0.103 R)
• M3: 1,141,731 km (0.106 R)
• M4: 1,658,592 km (0.084 R)
• M5: 2,166,476 km (0.12 R)
• M6: 3,350,244 km (0.09 R)
• M7: 3,984,240 km (0.08 R)
• M8: 5,652,556 km (0.043 R)
• M9: 8,568,368 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.9

Radius: 10.6

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.28 AU - 1.42 AU

Year: 1083 Days

Day: 9.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 164.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 13,692,708 km

• M1: 131,796 km (0.063 R)
• M2: 491,279 km (0.028 R)
• M3: 908,209 km (0.061 R)
• M4: 1,644,380 km (0.109 R)
• M5: 2,392,369 km (0.113 R)
• M6: 3,874,286 km (0.084 R)
• M7: 4,255,760 km (0.102 R)
• M8: 4,615,992 km (0.071 R)
• M9: 6,152,661 km (0.093 R)
• M10: 6,793,688 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 607.1

Radius: 9

Gravity: 7.5 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.52 AU - 1.92 AU

Year: 1557 Days

Day: 12.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 13,692,708 km

• M1: 112,049 km (0.084 R)
• M2: 395,836 km (0.116 R)
• M3: 1,119,142 km (0.08 R)
• M4: 2,146,729 km (0.09 R)
• M5: 2,895,317 km (0.096 R)
• M6: 3,400,360 km (0.115 R)
• M7: 3,876,380 km (0.052 R)
• M8: 4,509,628 km (0.12 R)
• M9: 5,105,925 km (0.049 R)
• M10: 5,776,123 km (0.117 R)
• M11: 6,776,484 km (0.07 R)
• M12: 7,134,322 km (0.087 R)
• M13: 8,546,078 km (0.061 R)
• M14: 9,873,908 km (0.043 R)
• M15: 11,369,737 km (0.114 R)
• M16: 12,171,881 km (0.104 R)
• M17: 12,817,097 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 538

Radius: 8.2

Gravity: 8 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.57 AU - 2.11 AU

Year: 1723 Days

Day: 14.6 Hours

Environment

Temp: -208 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 13,692,708 km

• M1: 102,026 km (0.054 R)
• M2: 357,838 km (0.112 R)
• M3: 720,314 km (0.095 R)
• M4: 1,348,774 km (0.071 R)
• M5: 1,750,295 km (0.113 R)
• M6: 2,024,059 km (0.092 R)
• M7: 2,314,129 km (0.116 R)
• M8: 3,921,110 km (0.109 R)
• M9: 5,195,833 km (0.06 R)
• M10: 5,904,628 km (0.08 R)
• M11: 6,626,138 km (0.106 R)
• M12: 8,099,827 km (0.102 R)
• M13: 9,395,345 km (0.118 R)
• M14: 9,943,770 km (0.092 R)
• M15: 10,754,142 km (0.074 R)
• M16: 11,139,955 km (0.05 R)
• M17: 13,169,549 km (0.112 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 280 - 12,192 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit