🌌 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: 0.2

Radius: 0.53

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.47 AU - 0.55 AU

Year: 235 Days

Day: 27.6 Hours

Environment

Temp: -118 °C

Axial Tilt: 9.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 45,252,014 km

• M1: 13,165 km (0.103 R)
• M2: 29,321 km (0.052 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.53

Radius: 1.19

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.55 AU - 0.75 AU

Year: 338 Days

Day: 24.3 Hours

Environment

Temp: -130 °C

Axial Tilt: 24.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.5

Radius: 9.2

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.79 AU - 0.83 AU

Year: 471 Days

Day: 14 Hours

Environment

Temp: -140 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,252,014 km

• M1: 114,442 km (0.086 R)
• M2: 432,039 km (0.059 R)
• M3: 733,927 km (0.095 R)
• M4: 1,059,452 km (0.059 R)
• M5: 1,352,814 km (0.112 R)
• M6: 1,769,593 km (0.039 R)
• M7: 2,546,455 km (0.081 R)
• M8: 2,942,740 km (0.032 R)
• M9: 3,368,944 km (0.12 R)
• M10: 4,005,034 km (0.084 R)
• M11: 4,358,534 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620

Radius: 9.9

Gravity: 6.33 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.89 AU - 1.03 AU

Year: 607 Days

Day: 7.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 45,252,014 km

• M1: 123,119 km (0.114 R)
• M2: 509,530 km (0.07 R)
• M3: 1,046,138 km (0.076 R)
• M4: 1,454,690 km (0.077 R)
• M5: 1,850,376 km (0.036 R)
• M6: 2,231,252 km (0.088 R)
• M7: 2,643,095 km (0.047 R)
• M8: 3,542,029 km (0.081 R)
• M9: 3,906,599 km (0.088 R)
• M10: 4,222,101 km (0.095 R)
• M11: 4,585,773 km (0.034 R)
• M12: 5,187,755 km (0.108 R)
• M13: 6,274,733 km (0.12 R)
• M14: 6,709,315 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923.4

Radius: 14.7

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 4.74 AU - 5.88 AU

Year: 7901 Days

Day: 14.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 45,252,014 km

• M1: 182,809 km (0.093 R)
• M2: 947,852 km (0.057 R)
• M3: 1,907,672 km (0.025 R)
• M4: 3,642,559 km (0.119 R)
• M5: 4,484,346 km (0.101 R)
• M6: 5,135,994 km (0.102 R)
• M7: 5,782,706 km (0.103 R)
• M8: 6,930,570 km (0.091 R)
• M9: 10,212,747 km (0.035 R)
• M10: 13,258,111 km (0.117 R)
• M11: 14,105,434 km (0.082 R)
• M12: 15,052,987 km (0.057 R)
• M13: 15,575,382 km (0.118 R)
• M14: 18,818,664 km (0.102 R)
• M15: 20,518,844 km (0.027 R)
• M16: 21,735,374 km (0.064 R)
• M17: 25,674,435 km (0.108 R)
• M18: 26,139,535 km (0.081 R)
• M19: 27,278,873 km (0.037 R)
• M20: 27,860,958 km (0.079 R)
• M21: 29,656,880 km (0.073 R)
• M22: 34,482,608 km (0.095 R)
• M23: 35,277,721 km (0.101 R)
• M24: 40,432,116 km (0.045 R)
• M25: 41,443,547 km (0.071 R)
• M26: 41,955,620 km (0.118 R)
• M27: 45,252,010 km (0.097 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 541 - 11,988 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit