🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.53

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.6 AU - 0.78 AU

Year: 219 Days

Day: 19.9 Hours

Environment

Temp: 164 °C

Axial Tilt: 27 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.84

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.48 AU - 2.44 AU

Year: 1051 Days

Day: 15.7 Hours

Environment

Temp: -79 °C

Axial Tilt: 10.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.62

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.94 AU - 2.24 AU

Year: 1157 Days

Day: 25.3 Hours

Environment

Temp: -96 °C

Axial Tilt: 26.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.53

Radius: 1.19

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.78 AU - 2.6 AU

Year: 1241 Days

Day: 19 Hours

Environment

Temp: -99 °C

Axial Tilt: 3.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 91,853,167 km

• M1: 689,347 km (0.089 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.47

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 2.41 AU - 2.57 AU

Year: 1504 Days

Day: 47.8 Hours

Environment

Temp: -98 °C

Axial Tilt: 38.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.65 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 6.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577.6

Radius: 11.2

Gravity: 4.6 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 6.73 AU - 6.89 AU

Year: 6804 Days

Day: 7.7 Hours

Environment

Temp: -162 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 91,853,167 km

• M1: 139,276 km (0.09 R)
• M2: 490,980 km (0.045 R)
• M3: 897,138 km (0.041 R)
• M4: 1,359,396 km (0.094 R)
• M5: 1,906,774 km (0.103 R)
• M6: 2,423,037 km (0.102 R)
• M7: 3,383,006 km (0.073 R)
• M8: 4,877,639 km (0.086 R)
• M9: 5,304,740 km (0.068 R)
• M10: 8,020,540 km (0.107 R)
• M11: 9,286,288 km (0.097 R)
• M12: 10,216,637 km (0.089 R)
• M13: 10,633,865 km (0.076 R)
• M14: 11,159,403 km (0.102 R)
• M15: 12,522,688 km (0.099 R)
• M16: 16,318,734 km (0.088 R)
• M17: 18,071,722 km (0.09 R)
• M18: 21,192,184 km (0.107 R)
• M19: 21,948,551 km (0.054 R)
• M20: 23,037,474 km (0.047 R)
• M21: 23,435,105 km (0.06 R)
• M22: 24,737,953 km (0.053 R)
• M23: 31,107,232 km (0.115 R)
• M24: 33,182,154 km (0.098 R)
• M25: 34,615,601 km (0.072 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.2

Radius: 8.2

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 5.88 AU - 9.1 AU

Year: 7849 Days

Day: 14.3 Hours

Environment

Temp: -177 °C

Axial Tilt: 119.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 91,853,167 km

• M1: 102,026 km (0.119 R)
• M2: 462,407 km (0.099 R)
• M3: 1,480,271 km (0.028 R)
• M4: 2,058,915 km (0.119 R)
• M5: 2,335,971 km (0.09 R)
• M6: 3,748,773 km (0.077 R)
• M7: 4,980,113 km (0.115 R)
• M8: 6,082,051 km (0.071 R)
• M9: 6,365,240 km (0.066 R)
• M10: 7,233,356 km (0.055 R)
• M11: 8,027,721 km (0.118 R)
• M12: 9,661,330 km (0.071 R)
• M13: 13,840,645 km (0.082 R)
• M14: 14,442,627 km (0.102 R)
• M15: 16,964,548 km (0.082 R)
• M16: 17,845,380 km (0.098 R)
• M17: 22,486,355 km (0.11 R)
• M18: 29,544,383 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 800.2

Radius: 14.6

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 9.88 AU - 12.72 AU

Year: 14544 Days

Day: 11.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 81.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 91,853,167 km

• M1: 181,612 km (0.109 R)
• M2: 797,357 km (0.107 R)
• M3: 1,926,372 km (0.096 R)
• M4: 2,399,849 km (0.104 R)
• M5: 2,975,950 km (0.092 R)
• M6: 4,833,806 km (0.032 R)
• M7: 8,019,343 km (0.099 R)
• M8: 9,373,055 km (0.068 R)
• M9: 9,911,457 km (0.073 R)
• M10: 10,874,419 km (0.103 R)
• M11: 11,774,998 km (0.073 R)
• M12: 12,855,244 km (0.113 R)
• M13: 14,420,786 km (0.108 R)
• M14: 17,280,948 km (0.104 R)
• M15: 19,530,301 km (0.083 R)
• M16: 21,410,298 km (0.083 R)
• M17: 21,968,896 km (0.059 R)
• M18: 27,552,936 km (0.071 R)
• M19: 30,145,467 km (0.108 R)
• M20: 31,084,194 km (0.042 R)
• M21: 32,285,016 km (0.099 R)
• M22: 33,267,724 km (0.114 R)
• M23: 34,907,018 km (0.049 R)
• M24: 35,681,486 km (0.1 R)
• M25: 36,997,797 km (0.079 R)
• M26: 37,667,996 km (0.056 R)
• M27: 38,482,855 km (0.109 R)
• M28: 41,141,060 km (0.12 R)
• M29: 41,860,476 km (0.11 R)
• M30: 50,665,657 km (0.029 R)
• M31: 52,664,883 km (0.115 R)
• M32: 58,433,078 km (0.08 R)
• M33: 60,260,865 km (0.111 R)
• M34: 64,802,806 km (0.113 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 814.9

Radius: 7.8

Gravity: 13.39 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 14.33 AU - 17.51 AU

Year: 24321 Days

Day: 24 Hours

Environment

Temp: -205 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 91,853,167 km

• M1: 97,089 km (0.119 R)
• M2: 371,003 km (0.081 R)
• M3: 677,978 km (0.036 R)
• M4: 1,087,427 km (0.099 R)
• M5: 2,649,528 km (0.105 R)
• M6: 5,131,805 km (0.108 R)
• M7: 6,655,160 km (0.114 R)
• M8: 7,966,535 km (0.055 R)
• M9: 10,892,071 km (0.065 R)
• M10: 13,148,157 km (0.114 R)
• M11: 16,471,174 km (0.055 R)
• M12: 29,075,543 km (0.117 R)
• M13: 32,111,931 km (0.076 R)
• M14: 33,215,814 km (0.061 R)
• M15: 49,586,009 km (0.065 R)
• M16: 55,261,902 km (0.098 R)
• M17: 75,339,432 km (0.05 R)
• M18: 88,858,442 km (0.055 R)
• M19: 91,853,093 km (0.08 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 506 - 15,318 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit