🌌 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: 4.56

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.41 AU - 0.61 AU

Year: 239 Days

Day: 26.2 Hours

Environment

Temp: -113 °C

Axial Tilt: 9.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,370,403 km

• M1: 157,527 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 15.4

Radius: 12.9

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.67 AU - 1.03 AU

Year: 514 Days

Day: 10.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 51,370,403 km

• M1: 160,668 km (0.075 R)
• M2: 636,539 km (0.108 R)
• M3: 1,039,256 km (0.115 R)
• M4: 1,478,925 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308.6

Radius: 9

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.74 AU - 1.1 AU

Year: 579 Days

Day: 8.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,370,403 km

• M1: 111,899 km (0.093 R)
• M2: 421,716 km (0.051 R)
• M3: 1,037,760 km (0.105 R)
• M4: 1,703,172 km (0.118 R)
• M5: 1,983,518 km (0.094 R)
• M6: 2,312,484 km (0.118 R)
• M7: 2,890,680 km (0.101 R)
• M8: 4,078,337 km (0.107 R)
• M9: 4,416,877 km (0.057 R)
• M10: 4,745,095 km (0.114 R)
• M11: 5,135,545 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 417.6

Radius: 12.6

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 2.52 AU - 2.96 AU

Year: 2975 Days

Day: 10.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 120 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 51,370,403 km

• M1: 156,629 km (0.08 R)
• M2: 617,690 km (0.043 R)
• M3: 1,197,531 km (0.116 R)
• M4: 1,634,806 km (0.069 R)
• M5: 2,269,400 km (0.109 R)
• M6: 3,243,132 km (0.06 R)
• M7: 3,958,360 km (0.062 R)
• M8: 4,415,680 km (0.078 R)
• M9: 5,437,583 km (0.106 R)
• M10: 7,056,681 km (0.115 R)
• M11: 7,492,609 km (0.092 R)
• M12: 7,885,005 km (0.104 R)
• M13: 8,386,756 km (0.07 R)
• M14: 8,810,118 km (0.089 R)
• M15: 9,699,926 km (0.068 R)
• M16: 10,313,427 km (0.055 R)
• M17: 11,068,298 km (0.096 R)
• M18: 13,030,573 km (0.078 R)
• M19: 13,599,793 km (0.102 R)
• M20: 15,504,174 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 645.1

Radius: 14.6

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 4.02 AU - 4.68 AU

Year: 5952 Days

Day: 9 Hours

Environment

Temp: -208 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 51,370,403 km

• M1: 181,612 km (0.095 R)
• M2: 644,318 km (0.109 R)
• M3: 1,469,649 km (0.061 R)
• M4: 2,068,340 km (0.115 R)
• M5: 2,561,714 km (0.079 R)
• M6: 3,154,421 km (0.103 R)
• M7: 3,906,898 km (0.078 R)
• M8: 6,304,353 km (0.057 R)
• M9: 8,253,315 km (0.116 R)
• M10: 9,136,092 km (0.075 R)
• M11: 11,042,716 km (0.12 R)
• M12: 14,185,468 km (0.055 R)
• M13: 14,983,274 km (0.114 R)
• M14: 15,511,953 km (0.116 R)
• M15: 16,052,899 km (0.108 R)
• M16: 18,410,860 km (0.043 R)
• M17: 19,291,693 km (0.077 R)
• M18: 22,103,534 km (0.073 R)
• M19: 22,866,334 km (0.098 R)
• M20: 23,332,481 km (0.097 R)
• M21: 27,906,136 km (0.106 R)
• M22: 30,263,200 km (0.118 R)
• M23: 30,731,143 km (0.114 R)
• M24: 32,750,115 km (0.111 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 234.4

Radius: 5.9

Gravity: 6.73 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 7.78 AU - 11.06 AU

Year: 18966 Days

Day: 24.3 Hours

Environment

Temp: -239 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 51,370,403 km

• M1: 74,051 km (0.047 R)
• M2: 521,797 km (0.077 R)
• M3: 933,940 km (0.078 R)
• M4: 1,286,093 km (0.095 R)
• M5: 1,543,102 km (0.073 R)
• M6: 1,883,587 km (0.113 R)
• M7: 2,216,592 km (0.107 R)
• M8: 3,092,936 km (0.106 R)
• M9: 3,583,019 km (0.115 R)
• M10: 3,901,064 km (0.112 R)
• M11: 4,237,808 km (0.081 R)
• M12: 6,837,969 km (0.12 R)
• M13: 8,016,950 km (0.093 R)
• M14: 8,561,486 km (0.081 R)
• M15: 8,842,730 km (0.114 R)
• M16: 9,081,937 km (0.111 R)
• M17: 9,325,482 km (0.086 R)
• M18: 10,343,197 km (0.082 R)
• M19: 10,662,439 km (0.101 R)
• M20: 10,878,757 km (0.074 R)
• M21: 11,947,335 km (0.112 R)
• M22: 14,422,432 km (0.117 R)
• M23: 16,633,488 km (0.097 R)
• M24: 17,517,911 km (0.055 R)
• M25: 17,895,496 km (0.083 R)
• M26: 19,060,713 km (0.074 R)
• M27: 20,524,828 km (0.093 R)
• M28: 21,455,626 km (0.107 R)
• M29: 22,680,533 km (0.071 R)
• M30: 26,634,106 km (0.042 R)
• M31: 35,030,885 km (0.053 R)
• M32: 37,593,646 km (0.094 R)
• M33: 38,348,217 km (0.06 R)
• M34: 46,314,005 km (0.088 R)
• M35: 50,452,630 km (0.118 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: 399 - 18,394 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit