🌌 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: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.15

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.8 AU - 0.88 AU

Year: 283 Days

Day: 28.8 Hours

Environment

Temp: 163 °C

Axial Tilt: 9.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 71,681,045 km

• M1: 46,974 km (0.113 R)
• M2: 73,901 km (0.077 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.78 AU - 2.54 AU

Year: 1165 Days

Day: 46.2 Hours

Environment

Temp: -85 °C

Axial Tilt: 31.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 71,681,045 km

• M1: 32,014 km (0.11 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.17

Radius: 1.06

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 3.46 AU - 3.56 AU

Year: 2414 Days

Day: 20.8 Hours

Environment

Temp: -121 °C

Axial Tilt: 34.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 71,681,045 km

• M1: 1,890,319 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888

Radius: 14.2

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 5.78 AU - 6.24 AU

Year: 5409 Days

Day: 6.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 71,681,045 km

• M1: 176,675 km (0.08 R)
• M2: 630,256 km (0.117 R)
• M3: 1,090,120 km (0.101 R)
• M4: 1,533,229 km (0.119 R)
• M5: 2,352,726 km (0.081 R)
• M6: 4,312,607 km (0.106 R)
• M7: 4,918,928 km (0.093 R)
• M8: 5,642,233 km (0.101 R)
• M9: 6,173,755 km (0.107 R)
• M10: 7,302,022 km (0.093 R)
• M11: 8,088,906 km (0.111 R)
• M12: 9,482,261 km (0.099 R)
• M13: 10,934,707 km (0.087 R)
• M14: 13,938,632 km (0.052 R)
• M15: 15,630,285 km (0.112 R)
• M16: 16,494,362 km (0.064 R)
• M17: 18,862,796 km (0.118 R)
• M18: 19,348,390 km (0.112 R)
• M19: 22,594,814 km (0.061 R)
• M20: 26,619,595 km (0.104 R)
• M21: 27,319,264 km (0.051 R)
• M22: 31,485,864 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 10.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.2

Radius: 10.9

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 9.14 AU - 11.3 AU

Year: 11994 Days

Day: 9.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,681,045 km

• M1: 135,835 km (0.091 R)
• M2: 652,396 km (0.103 R)
• M3: 1,114,654 km (0.118 R)
• M4: 1,540,559 km (0.093 R)
• M5: 3,251,809 km (0.12 R)
• M6: 4,007,877 km (0.112 R)
• M7: 5,000,608 km (0.108 R)
• M8: 6,092,972 km (0.033 R)
• M9: 9,150,902 km (0.096 R)
• M10: 9,569,925 km (0.106 R)
• M11: 10,001,665 km (0.093 R)
• M12: 11,288,805 km (0.052 R)
• M13: 13,204,705 km (0.084 R)
• M14: 14,088,828 km (0.118 R)
• M15: 18,743,865 km (0.094 R)
• M16: 20,954,473 km (0.072 R)
• M17: 23,192,906 km (0.113 R)
• M18: 23,901,551 km (0.038 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 93.5

Radius: 10

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 8.35 AU - 13.09 AU

Year: 12884 Days

Day: 7.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,681,045 km

• M1: 124,316 km (0.116 R)
• M2: 790,924 km (0.077 R)
• M3: 2,975,202 km (0.084 R)
• M4: 3,382,707 km (0.057 R)
• M5: 4,287,026 km (0.111 R)
• M6: 4,731,781 km (0.111 R)
• M7: 9,436,185 km (0.106 R)
• M8: 12,697,119 km (0.051 R)
• M9: 17,004,042 km (0.086 R)
• M10: 18,957,042 km (0.118 R)
• M11: 20,089,348 km (0.103 R)
• M12: 26,681,379 km (0.085 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.1

Radius: 13.4

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 10.6 AU - 11.8 AU

Year: 13759 Days

Day: 14.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 76.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 71,681,045 km

• M1: 166,652 km (0.11 R)
• M2: 644,019 km (0.115 R)
• M3: 1,622,090 km (0.054 R)
• M4: 2,859,115 km (0.093 R)
• M5: 4,101,674 km (0.092 R)
• M6: 7,806,615 km (0.116 R)
• M7: 8,413,235 km (0.089 R)
• M8: 9,202,812 km (0.102 R)
• M9: 11,630,486 km (0.051 R)
• M10: 17,013,317 km (0.086 R)
• M11: 19,600,911 km (0.119 R)
• M12: 21,077,442 km (0.051 R)
• M13: 21,797,457 km (0.074 R)
• M14: 24,447,134 km (0.115 R)
• M15: 29,144,807 km (0.093 R)
• M16: 31,181,582 km (0.1 R)
• M17: 31,646,831 km (0.083 R)
• M18: 33,190,831 km (0.054 R)
• M19: 34,660,181 km (0.102 R)
• M20: 36,944,989 km (0.092 R)
• M21: 40,696,006 km (0.094 R)
• M22: 49,891,339 km (0.099 R)
• M23: 52,964,677 km (0.114 R)
• M24: 54,127,950 km (0.108 R)
• M25: 58,422,307 km (0.051 R)
• M26: 59,843,187 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 447.8

Radius: 3.3

Gravity: 41.12 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 13.87 AU - 17.33 AU

Year: 22618 Days

Day: 19.6 Hours

Environment

Temp: -185 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 71,681,045 km

• M1: 44,431 km (0.108 R)
• M2: 147,204 km (0.093 R)
• M3: 451,935 km (0.105 R)
• M4: 773,122 km (0.066 R)
• M5: 1,257,071 km (0.067 R)
• M6: 2,455,200 km (0.115 R)
• M7: 2,710,265 km (0.05 R)
• M8: 8,996,068 km (0.062 R)
• M9: 9,656,393 km (0.077 R)
• M10: 12,757,407 km (0.084 R)
• M11: 14,679,740 km (0.066 R)
• M12: 16,786,527 km (0.077 R)
• M13: 19,086,444 km (0.114 R)
• M14: 20,637,325 km (0.111 R)
• M15: 21,684,361 km (0.069 R)
• M16: 23,883,749 km (0.095 R)
• M17: 31,613,620 km (0.045 R)
• M18: 34,300,099 km (0.033 R)
• M19: 36,858,372 km (0.117 R)
• M20: 44,660,948 km (0.12 R)
• M21: 45,926,696 km (0.097 R)
• M22: 47,705,863 km (0.104 R)
• M23: 52,615,516 km (0.111 R)
• M24: 55,826,185 km (0.117 R)
• M25: 59,734,131 km (0.11 R)
• M26: 64,619,399 km (0.098 R)
• M27: 65,021,368 km (0.105 R)
• M28: 67,468,041 km (0.118 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 437 - 18,363 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit