🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.11

Radius: 0.41

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.53 AU - 0.55 AU

Year: 151 Days

Day: 12.3 Hours

Environment

Temp: 205 °C

Axial Tilt: 44.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.2

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.66 AU - 0.92 AU

Year: 267 Days

Day: 41 Hours

Environment

Temp: 136 °C

Axial Tilt: 40 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 86,571,136 km

• M1: 59,390 km (0.114 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.04

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.18 AU - 1.6 AU

Year: 624 Days

Day: 14.2 Hours

Environment

Temp: -54 °C

Axial Tilt: 32.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.85

Radius: 1.71

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.2 AU - 1.86 AU

Year: 721 Days

Day: 39.8 Hours

Environment

Temp: -50 °C

Axial Tilt: 6.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 86,571,136 km

• M1: 42,336 km (0.096 R)
• M2: 866,920 km (0.063 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.23

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.8 AU - 1.96 AU

Year: 982 Days

Day: 13.1 Hours

Environment

Temp: -67 °C

Axial Tilt: 37.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.47

Radius: 1.17

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.92 AU - 2.2 AU

Year: 1126 Days

Day: 17.4 Hours

Environment

Temp: -86 °C

Axial Tilt: 6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 4.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17.2

Radius: 8.8

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 3.57 AU - 5.51 AU

Year: 3684 Days

Day: 7.7 Hours

Environment

Temp: -136 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 86,571,136 km

• M1: 109,506 km (0.087 R)
• M2: 635,641 km (0.108 R)
• M3: 1,149,061 km (0.06 R)
• M4: 1,737,729 km (0.058 R)
• M5: 2,133,116 km (0.103 R)
• M6: 3,339,772 km (0.064 R)
• M7: 4,518,155 km (0.106 R)
• M8: 6,161,188 km (0.112 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187

Radius: 13.7

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 9.53 AU - 10.39 AU

Year: 11970 Days

Day: 9.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 86,571,136 km

• M1: 172,935 km (0.071 R)
• M2: 812,167 km (0.052 R)
• M3: 1,250,339 km (0.103 R)
• M4: 2,487,663 km (0.066 R)
• M5: 2,963,235 km (0.113 R)
• M6: 4,076,692 km (0.082 R)
• M7: 4,907,558 km (0.065 R)
• M8: 5,974,191 km (0.028 R)
• M9: 6,767,658 km (0.104 R)
• M10: 7,226,026 km (0.076 R)
• M11: 7,895,177 km (0.075 R)
• M12: 9,018,208 km (0.05 R)
• M13: 12,135,529 km (0.12 R)
• M14: 15,183,286 km (0.094 R)
• M15: 15,910,631 km (0.058 R)
• M16: 17,369,510 km (0.098 R)
• M17: 18,640,493 km (0.088 R)
• M18: 20,920,065 km (0.11 R)
• M19: 21,897,239 km (0.078 R)
• M20: 22,358,449 km (0.082 R)
• M21: 23,780,975 km (0.036 R)
• M22: 29,236,959 km (0.105 R)
• M23: 31,713,402 km (0.087 R)
• M24: 34,326,877 km (0.078 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 963.8

Radius: 3.2

Gravity: 94.12 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 13.71 AU - 14.77 AU

Year: 20463 Days

Day: 15.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (46)

Outer Limit: 86,571,136 km

• M1: 58,493 km (0.045 R)
• M2: 368,310 km (0.099 R)
• M3: 652,247 km (0.111 R)
• M4: 1,191,697 km (0.094 R)
• M5: 3,065,410 km (0.093 R)
• M6: 3,351,591 km (0.089 R)
• M7: 4,144,609 km (0.041 R)
• M8: 5,252,082 km (0.091 R)
• M9: 6,314,377 km (0.083 R)
• M10: 7,162,447 km (0.097 R)
• M11: 7,665,096 km (0.112 R)
• M12: 8,462,452 km (0.043 R)
• M13: 10,095,911 km (0.037 R)
• M14: 10,986,468 km (0.114 R)
• M15: 14,832,629 km (0.082 R)
• M16: 15,481,584 km (0.095 R)
• M17: 15,646,740 km (0.113 R)
• M18: 16,923,110 km (0.112 R)
• M19: 19,012,393 km (0.084 R)
• M20: 20,662,607 km (0.106 R)
• M21: 20,963,449 km (0.054 R)
• M22: 26,065,185 km (0.105 R)
• M23: 27,368,182 km (0.095 R)
• M24: 28,963,345 km (0.111 R)
• M25: 29,466,442 km (0.107 R)
• M26: 35,964,226 km (0.109 R)
• M27: 37,428,340 km (0.103 R)
• M28: 40,007,707 km (0.047 R)
• M29: 40,631,380 km (0.068 R)
• M30: 42,218,913 km (0.096 R)
• M31: 48,805,408 km (0.098 R)
• M32: 55,850,121 km (0.119 R)
• M33: 58,208,083 km (0.068 R)
• M34: 61,247,612 km (0.113 R)
• M35: 66,111,039 km (0.041 R)
• M36: 67,861,035 km (0.106 R)
• M37: 70,543,774 km (0.09 R)
• M38: 74,934,621 km (0.119 R)
• M39: 76,597,251 km (0.106 R)
• M40: 76,836,608 km (0.062 R)
• M41: 78,041,619 km (0.075 R)
• M42: 79,014,603 km (0.071 R)
• M43: 79,504,088 km (0.092 R)
• M44: 81,482,370 km (0.071 R)
• M45: 85,279,613 km (0.094 R)
• M46: 86,311,838 km (0.117 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: 289 - 12,570 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit