🌌 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: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.84

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.71 AU - 0.97 AU

Year: 339 Days

Day: 24 Hours

Environment

Temp: -47 °C

Axial Tilt: 11.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 68,273,768 km

• M1: 57,894 km (0.115 R)
• M2: 778,358 km (0.111 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.13

Radius: 1.35

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.77 AU - 0.93 AU

Year: 345 Days

Day: 45.7 Hours

Environment

Temp: -55 °C

Axial Tilt: 38.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.9

Radius: 1.72

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.06 AU - 1.46 AU

Year: 622 Days

Day: 13.5 Hours

Environment

Temp: -95 °C

Axial Tilt: 1.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.8

Radius: 12.5

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 2.31 AU - 3.09 AU

Year: 1951 Days

Day: 8.4 Hours

Environment

Temp: -142 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 68,273,768 km

• M1: 155,432 km (0.114 R)
• M2: 641,027 km (0.101 R)
• M3: 1,048,083 km (0.092 R)
• M4: 1,794,277 km (0.116 R)
• M5: 2,275,384 km (0.108 R)
• M6: 2,957,999 km (0.073 R)
• M7: 3,568,956 km (0.116 R)
• M8: 6,763,918 km (0.1 R)
• M9: 8,326,169 km (0.086 R)
• M10: 9,913,701 km (0.119 R)
• M11: 11,619,715 km (0.099 R)
• M12: 12,424,552 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 562.8

Radius: 14.5

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 6.78 AU - 9.24 AU

Year: 9968 Days

Day: 8 Hours

Environment

Temp: -193 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 68,273,768 km

• M1: 181,163 km (0.088 R)
• M2: 920,177 km (0.113 R)
• M3: 1,484,011 km (0.045 R)
• M4: 2,210,458 km (0.081 R)
• M5: 3,533,502 km (0.096 R)
• M6: 4,085,667 km (0.084 R)
• M7: 4,695,428 km (0.036 R)
• M8: 8,016,052 km (0.077 R)
• M9: 8,574,501 km (0.106 R)
• M10: 9,297,508 km (0.069 R)
• M11: 15,223,528 km (0.08 R)
• M12: 15,881,310 km (0.095 R)
• M13: 17,466,299 km (0.059 R)
• M14: 22,683,974 km (0.097 R)
• M15: 26,156,290 km (0.063 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.8

Radius: 11.6

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 7.52 AU - 10.66 AU

Year: 12051 Days

Day: 12.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 68,273,768 km

• M1: 146,307 km (0.04 R)
• M2: 517,908 km (0.079 R)
• M3: 1,948,213 km (0.084 R)
• M4: 2,390,275 km (0.038 R)
• M5: 4,159,120 km (0.1 R)
• M6: 5,782,556 km (0.049 R)
• M7: 6,427,921 km (0.042 R)
• M8: 6,863,401 km (0.096 R)
• M9: 7,418,409 km (0.069 R)
• M10: 9,862,838 km (0.074 R)
• M11: 10,358,905 km (0.093 R)
• M12: 11,855,781 km (0.108 R)
• M13: 12,560,237 km (0.083 R)
• M14: 18,606,385 km (0.099 R)
• M15: 23,180,788 km (0.079 R)
• M16: 24,133,278 km (0.119 R)
• M17: 25,649,602 km (0.078 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 806

Radius: 4.6

Gravity: 38.09 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 10.67 AU - 10.99 AU

Year: 15671 Days

Day: 15.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 68,273,768 km

• M1: 59,390 km (0.117 R)
• M2: 410,347 km (0.076 R)
• M3: 725,699 km (0.12 R)
• M4: 887,265 km (0.112 R)
• M5: 1,048,232 km (0.108 R)
• M6: 1,414,897 km (0.1 R)
• M7: 2,148,973 km (0.066 R)
• M8: 2,576,225 km (0.096 R)
• M9: 2,738,389 km (0.112 R)
• M10: 3,293,248 km (0.085 R)
• M11: 4,103,769 km (0.097 R)
• M12: 5,257,019 km (0.048 R)
• M13: 6,314,975 km (0.107 R)
• M14: 7,648,640 km (0.072 R)
• M15: 8,330,956 km (0.103 R)
• M16: 11,656,217 km (0.086 R)
• M17: 15,088,591 km (0.114 R)
• M18: 15,464,979 km (0.059 R)
• M19: 15,847,650 km (0.117 R)
• M20: 17,359,337 km (0.081 R)
• M21: 19,758,438 km (0.079 R)
• M22: 20,391,087 km (0.1 R)
• M23: 25,518,854 km (0.079 R)
• M24: 26,485,705 km (0.099 R)
• M25: 28,836,037 km (0.099 R)
• M26: 31,688,120 km (0.109 R)
• M27: 33,308,863 km (0.053 R)
• M28: 34,462,861 km (0.047 R)
• M29: 34,853,312 km (0.071 R)
• M30: 36,714,609 km (0.116 R)
• M31: 39,486,956 km (0.094 R)
• M32: 41,508,622 km (0.086 R)
• M33: 43,295,569 km (0.074 R)
• M34: 43,902,487 km (0.083 R)
• M35: 49,621,464 km (0.097 R)
• M36: 53,350,041 km (0.115 R)
• M37: 60,978,486 km (0.068 R)
• M38: 62,702,452 km (0.115 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 529 - 16,079 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit