🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.06

Radius: 1.02

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.7 AU - 0.92 AU

Year: 281 Days

Day: 22.6 Hours

Environment

Temp: 37 °C

Axial Tilt: 47.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.18 AU - 1.3 AU

Year: 532 Days

Day: 23.8 Hours

Environment

Temp: -43 °C

Axial Tilt: 22.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 64,585,933 km

• M1: 15,409 km (0.084 R)
• M2: 127,158 km (0.116 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.91

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.18 AU - 1.62 AU

Year: 638 Days

Day: 12.7 Hours

Environment

Temp: -59 °C

Axial Tilt: 8.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 64,585,933 km

• M1: 44,131 km (0.102 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.08

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 2.08 AU - 3.14 AU

Year: 1623 Days

Day: 46.9 Hours

Environment

Temp: -102 °C

Axial Tilt: 18.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 8.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.8

Radius: 12.1

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 7.57 AU - 8.95 AU

Year: 9140 Days

Day: 6.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 64,585,933 km

• M1: 151,991 km (0.103 R)
• M2: 533,017 km (0.07 R)
• M3: 940,073 km (0.074 R)
• M4: 1,592,170 km (0.096 R)
• M5: 2,005,958 km (0.115 R)
• M6: 2,436,650 km (0.111 R)
• M7: 4,702,609 km (0.106 R)
• M8: 5,279,907 km (0.114 R)
• M9: 9,411,202 km (0.102 R)
• M10: 10,082,597 km (0.091 R)
• M11: 10,734,545 km (0.111 R)
• M12: 13,034,462 km (0.114 R)
• M13: 13,507,341 km (0.114 R)
• M14: 13,991,440 km (0.1 R)
• M15: 17,144,215 km (0.075 R)
• M16: 19,187,124 km (0.112 R)
• M17: 21,387,708 km (0.062 R)
• M18: 25,269,025 km (0.116 R)
• M19: 26,191,296 km (0.031 R)
• M20: 28,694,218 km (0.112 R)
• M21: 31,881,999 km (0.064 R)
• M22: 33,067,712 km (0.119 R)
• M23: 34,059,546 km (0.096 R)
• M24: 36,102,753 km (0.083 R)
• M25: 37,154,277 km (0.082 R)
• M26: 41,693,226 km (0.048 R)
• M27: 43,765,605 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 874.3

Radius: 10.8

Gravity: 7.5 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 8.37 AU - 8.57 AU

Year: 9491 Days

Day: 5.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 64,585,933 km

• M1: 134,488 km (0.064 R)
• M2: 751,580 km (0.088 R)
• M3: 1,393,953 km (0.049 R)
• M4: 2,374,866 km (0.12 R)
• M5: 3,291,602 km (0.117 R)
• M6: 4,284,932 km (0.052 R)
• M7: 4,820,492 km (0.107 R)
• M8: 5,169,504 km (0.035 R)
• M9: 10,211,700 km (0.099 R)
• M10: 12,011,961 km (0.106 R)
• M11: 13,200,815 km (0.12 R)
• M12: 14,014,628 km (0.044 R)
• M13: 17,533,170 km (0.079 R)
• M14: 21,345,971 km (0.026 R)
• M15: 25,678,774 km (0.084 R)
• M16: 26,161,376 km (0.074 R)
• M17: 28,050,498 km (0.106 R)
• M18: 30,997,726 km (0.11 R)
• M19: 31,876,464 km (0.116 R)
• M20: 32,997,999 km (0.063 R)
• M21: 37,008,269 km (0.1 R)
• M22: 39,130,315 km (0.087 R)
• M23: 41,332,246 km (0.085 R)
• M24: 43,615,558 km (0.094 R)
• M25: 49,021,128 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 364.1

Radius: 4.7

Gravity: 16.48 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 12.14 AU - 15.96 AU

Year: 20276 Days

Day: 15.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 64,585,933 km

• M1: 58,493 km (0.092 R)
• M2: 207,941 km (0.111 R)
• M3: 369,208 km (0.084 R)
• M4: 875,297 km (0.104 R)
• M5: 1,241,214 km (0.096 R)
• M6: 1,393,654 km (0.065 R)
• M7: 1,686,417 km (0.073 R)
• M8: 1,891,815 km (0.054 R)
• M9: 2,037,972 km (0.068 R)
• M10: 2,312,035 km (0.099 R)
• M11: 5,835,215 km (0.102 R)
• M12: 5,989,600 km (0.103 R)
• M13: 6,428,221 km (0.054 R)
• M14: 10,397,501 km (0.071 R)
• M15: 11,148,033 km (0.088 R)
• M16: 11,749,566 km (0.089 R)
• M17: 12,499,500 km (0.119 R)
• M18: 14,302,903 km (0.065 R)
• M19: 14,797,324 km (0.052 R)
• M20: 18,005,600 km (0.061 R)
• M21: 18,168,961 km (0.118 R)
• M22: 21,010,123 km (0.097 R)
• M23: 26,485,256 km (0.114 R)
• M24: 27,988,864 km (0.086 R)
• M25: 29,775,811 km (0.095 R)
• M26: 33,575,297 km (0.083 R)
• M27: 34,071,962 km (0.083 R)
• M28: 36,107,092 km (0.037 R)
• M29: 40,557,778 km (0.097 R)
• M30: 43,572,474 km (0.097 R)
• M31: 50,366,611 km (0.073 R)
• M32: 50,691,238 km (0.117 R)
• M33: 52,501,373 km (0.104 R)
• M34: 58,189,383 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 365.5

Radius: 6.2

Gravity: 9.51 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 11.2 AU - 17.94 AU

Year: 21412 Days

Day: 22.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 135.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 64,585,933 km

• M1: 96,491 km (0.112 R)
• M2: 498,909 km (0.065 R)
• M3: 782,846 km (0.069 R)
• M4: 1,037,461 km (0.101 R)
• M5: 1,361,041 km (0.116 R)
• M6: 1,586,186 km (0.108 R)
• M7: 2,568,147 km (0.054 R)
• M8: 2,963,085 km (0.091 R)
• M9: 3,162,649 km (0.108 R)
• M10: 3,787,220 km (0.073 R)
• M11: 4,654,588 km (0.097 R)
• M12: 5,170,252 km (0.12 R)
• M13: 7,211,216 km (0.037 R)
• M14: 7,666,442 km (0.071 R)
• M15: 8,434,478 km (0.115 R)
• M16: 9,147,611 km (0.099 R)
• M17: 9,411,800 km (0.114 R)
• M18: 10,291,436 km (0.086 R)
• M19: 11,466,677 km (0.061 R)
• M20: 11,712,017 km (0.107 R)
• M21: 12,663,609 km (0.061 R)
• M22: 17,548,728 km (0.071 R)
• M23: 19,828,599 km (0.117 R)
• M24: 20,093,537 km (0.084 R)
• M25: 22,108,920 km (0.065 R)
• M26: 22,681,132 km (0.05 R)
• M27: 25,069,162 km (0.11 R)
• M28: 25,691,340 km (0.1 R)
• M29: 25,900,927 km (0.075 R)
• M30: 29,642,369 km (0.031 R)
• M31: 34,742,011 km (0.107 R)
• M32: 41,251,613 km (0.026 R)
• M33: 42,264,091 km (0.093 R)
• M34: 42,850,066 km (0.057 R)
• M35: 48,369,330 km (0.118 R)
• M36: 49,982,444 km (0.111 R)
• M37: 57,507,815 km (0.091 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 182 - 11,986 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit