🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.65

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.58 AU - 0.66 AU

Year: 179 Days

Day: 21.7 Hours

Environment

Temp: 167 °C

Axial Tilt: 27.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.88

Radius: 1.29

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.66 AU - 1.08 AU

Year: 298 Days

Day: 30.3 Hours

Environment

Temp: 81 °C

Axial Tilt: 21.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 76,905,568 km

• M1: 44,281 km (0.099 R)
• M2: 344,823 km (0.073 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.88

Radius: 1.29

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 2.71 AU - 4.13 AU

Year: 2322 Days

Day: 29.6 Hours

Environment

Temp: -105 °C

Axial Tilt: 10.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.17

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 3.57 AU - 3.75 AU

Year: 2570 Days

Day: 23.8 Hours

Environment

Temp: -125 °C

Axial Tilt: 10.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 5.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 475.7

Radius: 14.4

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 5.15 AU - 6.35 AU

Year: 5061 Days

Day: 11.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 76,905,568 km

• M1: 179,069 km (0.035 R)
• M2: 799,002 km (0.057 R)
• M3: 1,591,273 km (0.101 R)
• M4: 2,093,173 km (0.091 R)
• M5: 4,349,259 km (0.1 R)
• M6: 4,957,973 km (0.108 R)
• M7: 5,595,559 km (0.03 R)
• M8: 6,109,278 km (0.082 R)
• M9: 7,133,574 km (0.079 R)
• M10: 10,426,523 km (0.034 R)
• M11: 11,704,089 km (0.072 R)
• M12: 12,404,805 km (0.071 R)
• M13: 13,482,957 km (0.072 R)
• M14: 18,119,294 km (0.084 R)
• M15: 18,867,583 km (0.094 R)
• M16: 22,138,989 km (0.1 R)
• M17: 23,066,795 km (0.071 R)
• M18: 26,242,010 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321.2

Radius: 12.9

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 6.17 AU - 9.05 AU

Year: 7706 Days

Day: 14.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,905,568 km

• M1: 160,668 km (0.115 R)
• M2: 829,520 km (0.04 R)
• M3: 1,259,315 km (0.118 R)
• M4: 2,584,902 km (0.105 R)
• M5: 2,998,091 km (0.107 R)
• M6: 4,513,817 km (0.052 R)
• M7: 5,229,194 km (0.091 R)
• M8: 8,871,303 km (0.09 R)
• M9: 9,442,767 km (0.074 R)
• M10: 11,306,009 km (0.113 R)
• M11: 13,615,800 km (0.078 R)
• M12: 14,102,142 km (0.101 R)
• M13: 15,514,047 km (0.088 R)
• M14: 22,411,107 km (0.113 R)
• M15: 23,242,572 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.1

Radius: 9

Gravity: 8.12 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 7.36 AU - 8.36 AU

Year: 8089 Days

Day: 10.7 Hours

Environment

Temp: -169 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 76,905,568 km

• M1: 111,899 km (0.094 R)
• M2: 449,392 km (0.09 R)
• M3: 1,557,015 km (0.029 R)
• M4: 1,852,620 km (0.115 R)
• M5: 3,367,747 km (0.086 R)
• M6: 4,097,785 km (0.046 R)
• M7: 4,528,328 km (0.115 R)
• M8: 5,261,507 km (0.093 R)
• M9: 6,631,973 km (0.111 R)
• M10: 10,547,547 km (0.106 R)
• M11: 11,461,890 km (0.071 R)
• M12: 12,263,435 km (0.047 R)
• M13: 14,892,618 km (0.047 R)
• M14: 15,206,175 km (0.068 R)
• M15: 17,665,564 km (0.056 R)
• M16: 23,866,695 km (0.025 R)
• M17: 24,469,873 km (0.096 R)
• M18: 26,984,614 km (0.101 R)
• M19: 28,208,773 km (0.112 R)
• M20: 29,469,584 km (0.119 R)
• M21: 32,732,463 km (0.086 R)
• M22: 33,691,834 km (0.108 R)
• M23: 34,560,250 km (0.106 R)
• M24: 36,228,715 km (0.089 R)
• M25: 39,605,288 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 609.8

Radius: 6.6

Gravity: 14 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 14.45 AU - 15.75 AU

Year: 21540 Days

Day: 24 Hours

Environment

Temp: -187 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 76,905,568 km

• M1: 82,129 km (0.059 R)
• M2: 311,463 km (0.083 R)
• M3: 793,467 km (0.061 R)
• M4: 1,079,049 km (0.057 R)
• M5: 1,416,841 km (0.098 R)
• M6: 1,786,647 km (0.114 R)
• M7: 2,506,213 km (0.054 R)
• M8: 3,101,613 km (0.114 R)
• M9: 4,005,034 km (0.103 R)
• M10: 4,889,008 km (0.104 R)
• M11: 5,652,705 km (0.088 R)
• M12: 8,955,228 km (0.118 R)
• M13: 9,287,335 km (0.116 R)
• M14: 9,742,711 km (0.054 R)
• M15: 10,153,357 km (0.081 R)
• M16: 10,514,486 km (0.041 R)
• M17: 11,072,187 km (0.113 R)
• M18: 12,863,622 km (0.061 R)
• M19: 13,718,574 km (0.053 R)
• M20: 15,305,059 km (0.079 R)
• M21: 18,658,295 km (0.074 R)
• M22: 20,126,598 km (0.074 R)
• M23: 20,985,589 km (0.117 R)
• M24: 21,968,298 km (0.087 R)
• M25: 24,451,622 km (0.059 R)
• M26: 28,162,996 km (0.12 R)
• M27: 31,212,848 km (0.069 R)
• M28: 33,407,897 km (0.104 R)
• M29: 36,398,808 km (0.028 R)
• M30: 37,529,169 km (0.066 R)
• M31: 40,307,351 km (0.118 R)
• M32: 47,095,055 km (0.083 R)
• M33: 55,528,186 km (0.104 R)
• M34: 61,875,624 km (0.102 R)
• M35: 64,503,311 km (0.114 R)
• M36: 69,332,928 km (0.099 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: 455 - 19,534 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit