🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.04

Radius: 1.02

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.62 AU - 0.74 AU

Year: 197 Days

Day: 26.2 Hours

Environment

Temp: 217 °C

Axial Tilt: 47.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.08

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.74 AU - 0.8 AU

Year: 237 Days

Day: 36.4 Hours

Environment

Temp: 118 °C

Axial Tilt: 20.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 102,859,394 km

• M1: 78,988 km (0.078 R)
• M2: 98,585 km (0.12 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.95

Radius: 0.98

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.69 AU - 0.99 AU

Year: 271 Days

Day: 29.8 Hours

Environment

Temp: 200 °C

Axial Tilt: 33.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.69

Radius: 0.86

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.6 AU - 2 AU

Year: 849 Days

Day: 24.9 Hours

Environment

Temp: -51 °C

Axial Tilt: 34.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.78

Radius: 0.91

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 3.23 AU - 3.93 AU

Year: 2381 Days

Day: 46.2 Hours

Environment

Temp: -102 °C

Axial Tilt: 10.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 102,859,394 km

• M1: 21,243 km (0.077 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.77

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 4.1 AU - 5.88 AU

Year: 3918 Days

Day: 34.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 11.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 6.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 238.4

Radius: 8.7

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 6.38 AU - 7.02 AU

Year: 6095 Days

Day: 5.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 102,859,394 km

• M1: 108,309 km (0.088 R)
• M2: 454,478 km (0.079 R)
• M3: 1,206,058 km (0.114 R)
• M4: 1,947,465 km (0.108 R)
• M5: 2,336,420 km (0.109 R)
• M6: 2,981,934 km (0.119 R)
• M7: 4,079,235 km (0.059 R)
• M8: 4,529,973 km (0.117 R)
• M9: 5,666,468 km (0.053 R)
• M10: 7,077,026 km (0.099 R)
• M11: 7,529,261 km (0.045 R)
• M12: 8,817,747 km (0.096 R)
• M13: 12,462,699 km (0.062 R)
• M14: 12,789,870 km (0.093 R)
• M15: 13,412,646 km (0.073 R)
• M16: 14,770,695 km (0.086 R)
• M17: 17,875,450 km (0.116 R)
• M18: 18,593,220 km (0.049 R)
• M19: 23,098,360 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 90.9

Radius: 3.8

Gravity: 6.3 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 12.18 AU - 17.46 AU

Year: 20052 Days

Day: 15.4 Hours

Environment

Temp: -196 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 102,859,394 km

• M1: 47,572 km (0.082 R)
• M2: 175,777 km (0.103 R)
• M3: 386,710 km (0.075 R)
• M4: 786,286 km (0.108 R)
• M5: 994,227 km (0.083 R)
• M6: 1,331,571 km (0.094 R)
• M7: 2,903,545 km (0.084 R)
• M8: 3,177,758 km (0.085 R)
• M9: 3,310,002 km (0.046 R)
• M10: 4,078,636 km (0.061 R)
• M11: 4,930,147 km (0.089 R)
• M12: 7,200,445 km (0.025 R)
• M13: 7,390,733 km (0.086 R)
• M14: 8,103,417 km (0.09 R)
• M15: 8,309,264 km (0.112 R)
• M16: 9,756,474 km (0.118 R)
• M17: 10,466,615 km (0.1 R)
• M18: 14,300,060 km (0.057 R)
• M19: 16,891,544 km (0.095 R)
• M20: 18,332,621 km (0.027 R)
• M21: 19,484,075 km (0.083 R)
• M22: 20,913,034 km (0.086 R)
• M23: 30,184,961 km (0.101 R)
• M24: 31,079,107 km (0.067 R)
• M25: 32,815,939 km (0.083 R)
• M26: 33,761,098 km (0.062 R)
• M27: 36,036,930 km (0.056 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 712.4

Radius: 4.7

Gravity: 32.25 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 18.04 AU - 21.44 AU

Year: 30825 Days

Day: 17.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 102,859,394 km

• M1: 59,241 km (0.093 R)
• M2: 227,389 km (0.056 R)
• M3: 638,185 km (0.085 R)
• M4: 983,606 km (0.093 R)
• M5: 1,703,621 km (0.104 R)
• M6: 1,971,550 km (0.095 R)
• M7: 2,514,142 km (0.119 R)
• M8: 3,003,925 km (0.076 R)
• M9: 3,271,556 km (0.062 R)
• M10: 4,975,625 km (0.069 R)
• M11: 5,523,004 km (0.065 R)
• M12: 5,834,018 km (0.066 R)
• M13: 6,298,370 km (0.104 R)
• M14: 7,195,508 km (0.097 R)
• M15: 7,566,511 km (0.087 R)
• M16: 10,195,693 km (0.097 R)
• M17: 13,535,316 km (0.093 R)
• M18: 16,156,121 km (0.108 R)
• M19: 18,403,680 km (0.075 R)
• M20: 18,698,537 km (0.065 R)
• M21: 19,806,459 km (0.107 R)
• M22: 20,533,953 km (0.078 R)
• M23: 22,710,453 km (0.058 R)
• M24: 23,277,728 km (0.095 R)
• M25: 26,009,086 km (0.119 R)
• M26: 27,643,592 km (0.108 R)
• M27: 30,153,994 km (0.091 R)
• M28: 32,812,049 km (0.062 R)
• M29: 37,792,760 km (0.052 R)
• M30: 46,990,486 km (0.094 R)
• M31: 51,322,990 km (0.086 R)
• M32: 59,478,318 km (0.1 R)
• M33: 63,191,038 km (0.103 R)
• M34: 65,902,799 km (0.111 R)
• M35: 84,628,413 km (0.088 R)
• M36: 89,596,409 km (0.116 R)
• M37: 101,936,887 km (0.1 R)

Kuiper Belt

Range: 31.2 - 48.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 487 - 16,816 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit