🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.45

Radius: 1.16

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.56 AU - 0.88 AU

Year: 218 Days

Day: 47.7 Hours

Environment

Temp: 179 °C

Axial Tilt: 8.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 75,402,675 km

• M1: 29,620 km (0.102 R)

Planet 2 - Terrestrial

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.05

Radius: 1.33

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 2.9 AU - 3.56 AU

Year: 2069 Days

Day: 35.7 Hours

Environment

Temp: -106 °C

Axial Tilt: 31.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.22

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 3.17 AU - 4.07 AU

Year: 2455 Days

Day: 44.7 Hours

Environment

Temp: -104 °C

Axial Tilt: 48 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 75,402,675 km

• M1: 776,712 km (0.028 R)
• M2: 1,577,360 km (0.073 R)

Planet 4 - Terrestrial

Semi-Major Axis: 5.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.36

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 4.11 AU - 6.27 AU

Year: 4215 Days

Day: 26.4 Hours

Environment

Temp: -127 °C

Axial Tilt: 18.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 7.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.8

Radius: 13.8

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 7.16 AU - 7.38 AU

Year: 6987 Days

Day: 5.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 75,402,675 km

• M1: 172,038 km (0.076 R)
• M2: 626,217 km (0.037 R)
• M3: 1,104,182 km (0.104 R)
• M4: 1,706,164 km (0.094 R)
• M5: 2,468,066 km (0.101 R)
• M6: 2,921,198 km (0.115 R)
• M7: 3,465,285 km (0.109 R)
• M8: 4,608,662 km (0.103 R)
• M9: 6,041,211 km (0.115 R)
• M10: 6,597,864 km (0.093 R)
• M11: 9,073,111 km (0.097 R)
• M12: 9,697,981 km (0.09 R)
• M13: 13,045,533 km (0.076 R)
• M14: 14,718,785 km (0.12 R)
• M15: 15,194,656 km (0.031 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561

Radius: 13.2

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 8.45 AU - 9.19 AU

Year: 9337 Days

Day: 8.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 75,402,675 km

• M1: 164,109 km (0.097 R)
• M2: 871,856 km (0.103 R)
• M3: 2,936,606 km (0.111 R)
• M4: 3,440,302 km (0.095 R)
• M5: 4,455,025 km (0.111 R)
• M6: 6,374,964 km (0.106 R)
• M7: 7,342,263 km (0.062 R)
• M8: 7,984,637 km (0.111 R)
• M9: 9,898,592 km (0.087 R)
• M10: 10,633,267 km (0.094 R)
• M11: 12,322,227 km (0.091 R)
• M12: 16,834,398 km (0.066 R)
• M13: 17,248,186 km (0.094 R)
• M14: 23,351,928 km (0.105 R)
• M15: 23,867,293 km (0.118 R)
• M16: 33,287,621 km (0.073 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 494.8

Radius: 7.5

Gravity: 8.8 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 11.19 AU - 18.61 AU

Year: 20501 Days

Day: 16.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 75,402,675 km

• M1: 93,199 km (0.115 R)
• M2: 433,834 km (0.038 R)
• M3: 1,297,462 km (0.086 R)
• M4: 2,385,936 km (0.079 R)
• M5: 5,339,298 km (0.116 R)
• M6: 7,152,573 km (0.074 R)
• M7: 8,602,326 km (0.068 R)
• M8: 9,560,800 km (0.108 R)
• M9: 11,562,419 km (0.099 R)
• M10: 24,380,563 km (0.1 R)
• M11: 28,408,785 km (0.1 R)
• M12: 29,569,066 km (0.085 R)
• M13: 31,124,286 km (0.103 R)
• M14: 32,232,507 km (0.071 R)
• M15: 33,750,626 km (0.092 R)
• M16: 35,714,547 km (0.059 R)
• M17: 38,031,070 km (0.099 R)
• M18: 45,421,803 km (0.078 R)
• M19: 47,006,643 km (0.085 R)
• M20: 47,974,990 km (0.109 R)
• M21: 54,066,166 km (0.082 R)
• M22: 55,307,530 km (0.06 R)
• M23: 56,025,450 km (0.118 R)
• M24: 58,772,665 km (0.099 R)
• M25: 68,371,463 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 502.9

Radius: 4.3

Gravity: 27.2 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 16.07 AU - 16.13 AU

Year: 23027 Days

Day: 18.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 75,402,675 km

• M1: 53,556 km (0.107 R)
• M2: 197,170 km (0.087 R)
• M3: 530,624 km (0.056 R)
• M4: 911,799 km (0.116 R)
• M5: 2,067,592 km (0.11 R)
• M6: 2,276,580 km (0.108 R)
• M7: 2,640,103 km (0.109 R)
• M8: 3,067,504 km (0.068 R)
• M9: 4,488,834 km (0.104 R)
• M10: 5,171,000 km (0.083 R)
• M11: 6,783,216 km (0.12 R)
• M12: 6,965,576 km (0.069 R)
• M13: 9,082,087 km (0.117 R)
• M14: 10,107,580 km (0.029 R)
• M15: 11,271,302 km (0.076 R)
• M16: 12,117,128 km (0.108 R)
• M17: 13,004,393 km (0.105 R)
• M18: 13,285,936 km (0.09 R)
• M19: 14,229,151 km (0.103 R)
• M20: 18,894,361 km (0.082 R)
• M21: 20,084,861 km (0.102 R)
• M22: 24,166,190 km (0.063 R)
• M23: 26,120,387 km (0.106 R)
• M24: 28,530,408 km (0.116 R)
• M25: 29,972,083 km (0.109 R)
• M26: 32,610,391 km (0.081 R)
• M27: 46,001,495 km (0.119 R)
• M28: 48,314,876 km (0.073 R)
• M29: 50,878,535 km (0.07 R)

Kuiper Belt

Range: 30.8 - 55.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 198 - 18,856 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit