🌌 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: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.92

Radius: 1.54

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.59 AU - 0.63 AU

Year: 168 Days

Day: 17.1 Hours

Environment

Temp: 249 °C

Axial Tilt: 31.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.45

Radius: 1.43

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.57 AU - 0.69 AU

Year: 177 Days

Day: 17.8 Hours

Environment

Temp: 176 °C

Axial Tilt: 31 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.22

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.63 AU - 0.71 AU

Year: 194 Days

Day: 24.5 Hours

Environment

Temp: 217 °C

Axial Tilt: 8.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 34,861,082 km

• M1: 574,306 km (0.102 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.57

Radius: 1.66

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.64 AU - 0.98 AU

Year: 257 Days

Day: 41.2 Hours

Environment

Temp: 144 °C

Axial Tilt: 16 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 5 - Terrestrial

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.51

Radius: 1.45

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.92 AU - 2.08 AU

Year: 999 Days

Day: 42.4 Hours

Environment

Temp: -46 °C

Axial Tilt: 6.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.81

Radius: 1.87

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 2.62 AU - 3.6 AU

Year: 1937 Days

Day: 41.2 Hours

Environment

Temp: -103 °C

Axial Tilt: 37.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 34,861,082 km

• M1: 390,899 km (0.109 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.54

Radius: 0.78

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 3.15 AU - 3.63 AU

Year: 2204 Days

Day: 21.2 Hours

Environment

Temp: -112 °C

Axial Tilt: 2.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.05

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 3 AU - 3.96 AU

Year: 2292 Days

Day: 42.3 Hours

Environment

Temp: -98 °C

Axial Tilt: 33.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 34,861,082 km

• M1: 1,446,761 km (0.063 R)

Asteroid Belt

Center: 9.01 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 14.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 68.9

Radius: 5.5

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 12.57 AU - 16.49 AU

Year: 19557 Days

Day: 22.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 34,861,082 km

• M1: 189,690 km (0.113 R)
• M2: 434,283 km (0.112 R)
• M3: 541,843 km (0.098 R)
• M4: 726,597 km (0.043 R)
• M5: 811,868 km (0.077 R)
• M6: 930,648 km (0.098 R)
• M7: 1,372,560 km (0.12 R)
• M8: 2,009,399 km (0.086 R)
• M9: 2,681,243 km (0.1 R)
• M10: 2,792,095 km (0.072 R)
• M11: 2,904,592 km (0.097 R)
• M12: 3,180,301 km (0.11 R)
• M13: 3,392,730 km (0.106 R)
• M14: 3,609,797 km (0.046 R)
• M15: 3,981,547 km (0.103 R)
• M16: 4,159,120 km (0.081 R)
• M17: 4,522,344 km (0.092 R)
• M18: 4,841,585 km (0.099 R)
• M19: 5,195,833 km (0.107 R)
• M20: 5,558,309 km (0.077 R)
• M21: 5,871,417 km (0.092 R)
• M22: 6,514,688 km (0.077 R)
• M23: 6,724,125 km (0.093 R)
• M24: 7,272,700 km (0.083 R)
• M25: 7,427,534 km (0.114 R)
• M26: 7,740,792 km (0.094 R)
• M27: 7,803,923 km (0.095 R)
• M28: 9,135,643 km (0.119 R)
• M29: 9,370,063 km (0.114 R)
• M30: 9,742,262 km (0.044 R)
• M31: 9,810,479 km (0.059 R)
• M32: 10,016,026 km (0.113 R)
• M33: 10,257,776 km (0.066 R)
• M34: 11,207,723 km (0.083 R)
• M35: 11,929,233 km (0.118 R)
• M36: 11,965,735 km (0.076 R)
• M37: 12,038,889 km (0.057 R)
• M38: 12,075,391 km (0.113 R)
• M39: 12,443,401 km (0.1 R)
• M40: 12,777,603 km (0.032 R)
• M41: 13,417,134 km (0.114 R)
• M42: 14,105,434 km (0.083 R)
• M43: 14,453,997 km (0.064 R)
• M44: 14,883,791 km (0.078 R)
• M45: 15,317,775 km (0.119 R)
• M46: 15,556,234 km (0.066 R)
• M47: 15,596,027 km (0.05 R)
• M48: 15,635,969 km (0.053 R)
• M49: 16,644,558 km (0.084 R)
• M50: 17,218,416 km (0.085 R)
• M51: 17,507,888 km (0.097 R)
• M52: 18,723,819 km (0.11 R)
• M53: 19,923,444 km (0.078 R)
• M54: 20,270,811 km (0.044 R)
• M55: 20,707,636 km (0.087 R)
• M56: 21,059,491 km (0.056 R)
• M57: 21,147,753 km (0.039 R)
• M58: 21,191,885 km (0.101 R)
• M59: 21,590,862 km (0.034 R)
• M60: 22,261,360 km (0.103 R)
• M61: 23,393,965 km (0.08 R)
• M62: 23,622,701 km (0.096 R)
• M63: 24,128,491 km (0.103 R)
• M64: 24,684,397 km (0.088 R)
• M65: 25,150,992 km (0.067 R)
• M66: 25,244,641 km (0.05 R)
• M67: 25,385,263 km (0.09 R)
• M68: 26,520,262 km (0.113 R)
• M69: 26,710,999 km (0.066 R)
• M70: 26,758,721 km (0.047 R)
• M71: 27,671,567 km (0.104 R)
• M72: 30,371,061 km (0.116 R)
• M73: 31,172,008 km (0.102 R)
• M74: 31,272,537 km (0.114 R)
• M75: 32,488,170 km (0.119 R)
• M76: 33,719,210 km (0.108 R)
• M77: 34,184,909 km (0.08 R)

Kuiper Belt

Range: 31.1 - 54.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 188 - 16,321 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit