🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.7

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.6 AU - 0.92 AU

Year: 247 Days

Day: 22.3 Hours

Environment

Temp: 163 °C

Axial Tilt: 18.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.44

Radius: 1.16

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.63 AU - 0.99 AU

Year: 272 Days

Day: 40.4 Hours

Environment

Temp: 146 °C

Axial Tilt: 33 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.51

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.87 AU - 2.29 AU

Year: 1118 Days

Day: 18.8 Hours

Environment

Temp: -69 °C

Axial Tilt: 15.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 1.67 AU - 2.65 AU

Year: 1183 Days

Day: 25.6 Hours

Environment

Temp: -78 °C

Axial Tilt: 39.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 5.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 664

Radius: 12.5

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 5.06 AU - 6.28 AU

Year: 5033 Days

Day: 13.7 Hours

Environment

Temp: -140 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 79,552,214 km

• M1: 155,432 km (0.097 R)
• M2: 639,082 km (0.058 R)
• M3: 1,161,627 km (0.054 R)
• M4: 1,692,550 km (0.096 R)
• M5: 2,529,550 km (0.037 R)
• M6: 2,949,621 km (0.111 R)
• M7: 3,583,168 km (0.054 R)
• M8: 4,354,046 km (0.043 R)
• M9: 4,779,353 km (0.05 R)
• M10: 5,951,452 km (0.105 R)
• M11: 6,350,729 km (0.109 R)
• M12: 6,999,984 km (0.072 R)
• M13: 7,765,027 km (0.092 R)
• M14: 8,740,106 km (0.09 R)
• M15: 9,298,106 km (0.112 R)
• M16: 9,964,714 km (0.097 R)
• M17: 12,904,462 km (0.103 R)
• M18: 13,523,648 km (0.096 R)
• M19: 15,848,698 km (0.095 R)
• M20: 17,601,985 km (0.109 R)
• M21: 18,950,011 km (0.096 R)
• M22: 22,509,094 km (0.117 R)
• M23: 26,163,022 km (0.113 R)
• M24: 27,916,758 km (0.095 R)
• M25: 28,778,890 km (0.039 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289

Radius: 14

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 6.54 AU - 9.54 AU

Year: 8498 Days

Day: 11.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 98.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 79,552,214 km

• M1: 174,132 km (0.113 R)
• M2: 784,790 km (0.117 R)
• M3: 1,337,555 km (0.093 R)
• M4: 1,920,537 km (0.085 R)
• M5: 2,851,335 km (0.062 R)
• M6: 3,547,564 km (0.12 R)
• M7: 4,379,777 km (0.081 R)
• M8: 6,830,040 km (0.082 R)
• M9: 8,427,147 km (0.104 R)
• M10: 10,576,121 km (0.091 R)
• M11: 11,130,680 km (0.075 R)
• M12: 12,098,429 km (0.088 R)
• M13: 12,602,873 km (0.099 R)
• M14: 15,281,273 km (0.117 R)
• M15: 19,188,470 km (0.085 R)
• M16: 22,335,710 km (0.116 R)
• M17: 23,250,501 km (0.117 R)
• M18: 26,396,843 km (0.099 R)
• M19: 31,585,795 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 496.2

Radius: 7.1

Gravity: 9.84 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 14.92 AU - 18.2 AU

Year: 25121 Days

Day: 24.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 79,552,214 km

• M1: 88,412 km (0.039 R)
• M2: 367,412 km (0.073 R)
• M3: 782,995 km (0.107 R)
• M4: 1,652,458 km (0.095 R)
• M5: 1,908,570 km (0.088 R)
• M6: 2,525,062 km (0.069 R)
• M7: 2,969,967 km (0.119 R)
• M8: 4,048,418 km (0.097 R)
• M9: 5,328,078 km (0.052 R)
• M10: 5,686,065 km (0.068 R)
• M11: 6,102,696 km (0.095 R)
• M12: 7,924,349 km (0.091 R)
• M13: 10,567,444 km (0.026 R)
• M14: 10,942,336 km (0.098 R)
• M15: 12,393,585 km (0.112 R)
• M16: 16,243,038 km (0.118 R)
• M17: 16,491,669 km (0.088 R)
• M18: 21,411,345 km (0.053 R)
• M19: 21,911,002 km (0.115 R)
• M20: 34,151,399 km (0.084 R)
• M21: 36,934,517 km (0.081 R)
• M22: 40,317,823 km (0.09 R)
• M23: 41,696,068 km (0.037 R)
• M24: 43,264,153 km (0.095 R)
• M25: 45,197,107 km (0.105 R)
• M26: 46,019,147 km (0.035 R)
• M27: 57,057,376 km (0.084 R)
• M28: 68,003,751 km (0.108 R)
• M29: 72,612,862 km (0.076 R)
• M30: 76,725,756 km (0.097 R)
• M31: 77,192,052 km (0.053 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 376 - 12,605 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit