🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.05

Radius: 1.02

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.7 AU - 0.9 AU

Year: 259 Days

Day: 21.7 Hours

Environment

Temp: 147 °C

Axial Tilt: 133.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 3.66 AU - 3.96 AU

Year: 2690 Days

Day: 16.6 Hours

Environment

Temp: -127 °C

Axial Tilt: 7.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 990.1

Radius: 10.5

Gravity: 8.98 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 4.8 AU - 7.9 AU

Year: 5787 Days

Day: 8.8 Hours

Environment

Temp: -143 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 107,388,746 km

• M1: 130,599 km (0.109 R)
• M2: 487,988 km (0.111 R)
• M3: 852,558 km (0.111 R)
• M4: 1,184,217 km (0.098 R)
• M5: 1,540,559 km (0.106 R)
• M6: 1,984,416 km (0.077 R)
• M7: 2,338,215 km (0.103 R)
• M8: 3,112,533 km (0.06 R)
• M9: 4,762,598 km (0.086 R)
• M10: 5,777,619 km (0.099 R)
• M11: 6,268,899 km (0.114 R)
• M12: 8,812,063 km (0.085 R)
• M13: 9,287,036 km (0.103 R)
• M14: 10,669,919 km (0.119 R)
• M15: 11,512,005 km (0.109 R)
• M16: 11,923,249 km (0.071 R)
• M17: 12,939,617 km (0.109 R)
• M18: 13,782,153 km (0.079 R)
• M19: 14,422,880 km (0.077 R)
• M20: 16,724,593 km (0.062 R)
• M21: 17,319,544 km (0.069 R)
• M22: 18,342,494 km (0.094 R)
• M23: 19,333,131 km (0.045 R)
• M24: 23,082,054 km (0.097 R)
• M25: 24,742,590 km (0.063 R)
• M26: 26,127,268 km (0.093 R)
• M27: 29,050,411 km (0.1 R)
• M28: 30,984,262 km (0.101 R)
• M29: 37,523,036 km (0.039 R)

Planet 4 - Ice Giant

Semi-Major Axis: 19.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 772.7

Radius: 7.3

Gravity: 14.5 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 18.77 AU - 20.59 AU

Year: 31574 Days

Day: 21.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 107,388,746 km

• M1: 90,806 km (0.05 R)
• M2: 354,846 km (0.106 R)
• M3: 838,496 km (0.116 R)
• M4: 1,070,373 km (0.114 R)
• M5: 1,574,069 km (0.115 R)
• M6: 2,762,175 km (0.085 R)
• M7: 4,124,712 km (0.039 R)
• M8: 4,573,955 km (0.06 R)
• M9: 5,138,687 km (0.086 R)
• M10: 5,438,032 km (0.089 R)
• M11: 6,025,054 km (0.1 R)
• M12: 7,218,546 km (0.079 R)
• M13: 8,211,876 km (0.097 R)
• M14: 9,293,319 km (0.075 R)
• M15: 9,609,868 km (0.097 R)
• M16: 10,466,765 km (0.104 R)
• M17: 12,031,409 km (0.051 R)
• M18: 12,331,801 km (0.111 R)
• M19: 13,422,669 km (0.106 R)
• M20: 15,440,295 km (0.114 R)
• M21: 16,892,592 km (0.042 R)
• M22: 17,555,759 km (0.066 R)
• M23: 22,465,411 km (0.052 R)
• M24: 36,422,893 km (0.087 R)
• M25: 37,848,560 km (0.078 R)
• M26: 40,979,644 km (0.103 R)
• M27: 52,392,465 km (0.074 R)
• M28: 55,440,372 km (0.102 R)
• M29: 63,459,866 km (0.113 R)
• M30: 68,100,541 km (0.068 R)
• M31: 70,746,778 km (0.095 R)
• M32: 71,235,215 km (0.109 R)
• M33: 73,211,403 km (0.058 R)
• M34: 89,780,863 km (0.067 R)
• M35: 91,795,198 km (0.104 R)
• M36: 98,930,119 km (0.102 R)
• M37: 102,945,027 km (0.09 R)

Kuiper Belt

Range: 30.3 - 55.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 249 - 12,632 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit