🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.43

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.84 AU - 0.84 AU

Year: 276 Days

Day: 26.9 Hours

Environment

Temp: 138 °C

Axial Tilt: 10.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.89 AU - 0.91 AU

Year: 306 Days

Day: 34.2 Hours

Environment

Temp: 163 °C

Axial Tilt: 46.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.03

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.8 AU - 2.42 AU

Year: 1098 Days

Day: 21.5 Hours

Environment

Temp: -70 °C

Axial Tilt: 20.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.14

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 2.52 AU - 2.7 AU

Year: 1510 Days

Day: 20.8 Hours

Environment

Temp: -89 °C

Axial Tilt: 1.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 67,313,251 km

• M1: 36,951 km (0.06 R)
• M2: 1,217,278 km (0.059 R)

Asteroid Belt

Center: 4.19 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 36.1

Radius: 12.3

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 4.63 AU - 6.89 AU

Year: 4951 Days

Day: 13.3 Hours

Environment

Temp: -143 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 67,313,251 km

• M1: 174,581 km (0.119 R)
• M2: 737,966 km (0.119 R)
• M3: 1,641,986 km (0.098 R)
• M4: 2,993,603 km (0.09 R)
• M5: 4,106,910 km (0.076 R)
• M6: 7,585,210 km (0.062 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 462.3

Radius: 5

Gravity: 18.49 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 12.85 AU - 14.69 AU

Year: 18301 Days

Day: 22.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 67,313,251 km

• M1: 62,233 km (0.106 R)
• M2: 542,591 km (0.113 R)
• M3: 704,307 km (0.051 R)
• M4: 1,179,579 km (0.067 R)
• M5: 3,297,287 km (0.081 R)
• M6: 3,456,459 km (0.094 R)
• M7: 3,935,322 km (0.078 R)
• M8: 4,785,037 km (0.076 R)
• M9: 8,155,777 km (0.108 R)
• M10: 10,805,604 km (0.068 R)
• M11: 14,823,354 km (0.07 R)
• M12: 15,851,091 km (0.077 R)
• M13: 16,769,173 km (0.119 R)
• M14: 18,794,579 km (0.103 R)
• M15: 20,796,946 km (0.085 R)
• M16: 22,650,015 km (0.036 R)
• M17: 23,129,925 km (0.11 R)
• M18: 25,219,658 km (0.068 R)
• M19: 25,839,143 km (0.104 R)
• M20: 28,752,561 km (0.079 R)
• M21: 29,202,103 km (0.099 R)
• M22: 31,997,638 km (0.115 R)
• M23: 36,386,690 km (0.087 R)
• M24: 37,443,300 km (0.117 R)
• M25: 38,792,673 km (0.092 R)
• M26: 39,479,476 km (0.098 R)
• M27: 40,735,799 km (0.118 R)
• M28: 44,067,344 km (0.093 R)
• M29: 46,797,954 km (0.101 R)
• M30: 49,639,266 km (0.112 R)
• M31: 58,668,994 km (0.089 R)
• M32: 60,120,542 km (0.105 R)
• M33: 61,595,726 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 560.3

Radius: 7.4

Gravity: 10.23 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 12.84 AU - 14.8 AU

Year: 18401 Days

Day: 17.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 67,313,251 km

• M1: 92,003 km (0.088 R)
• M2: 352,153 km (0.078 R)
• M3: 654,341 km (0.09 R)
• M4: 964,457 km (0.086 R)
• M5: 1,287,140 km (0.093 R)
• M6: 1,697,786 km (0.102 R)
• M7: 2,094,669 km (0.06 R)
• M8: 2,378,307 km (0.092 R)
• M9: 2,710,863 km (0.097 R)
• M10: 3,387,793 km (0.104 R)
• M11: 3,693,871 km (0.106 R)
• M12: 5,252,381 km (0.032 R)
• M13: 6,592,479 km (0.069 R)
• M14: 7,526,119 km (0.11 R)
• M15: 7,856,132 km (0.101 R)
• M16: 8,195,869 km (0.064 R)
• M17: 9,930,755 km (0.118 R)
• M18: 10,385,683 km (0.118 R)
• M19: 10,913,913 km (0.06 R)
• M20: 12,345,415 km (0.075 R)
• M21: 13,480,863 km (0.042 R)
• M22: 16,190,379 km (0.112 R)
• M23: 18,129,916 km (0.108 R)
• M24: 22,079,000 km (0.065 R)
• M25: 23,247,808 km (0.105 R)
• M26: 24,151,230 km (0.102 R)
• M27: 24,973,719 km (0.11 R)
• M28: 38,667,310 km (0.104 R)
• M29: 38,946,609 km (0.107 R)
• M30: 47,003,352 km (0.109 R)
• M31: 47,640,788 km (0.114 R)
• M32: 51,250,585 km (0.083 R)

Kuiper Belt

Range: 30.6 - 46.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 499 - 12,778 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit