🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.93

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.53 AU - 0.55 AU

Year: 141 Days

Day: 45.3 Hours

Environment

Temp: 240 °C

Axial Tilt: 13 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.5

Radius: 0.76

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.96 AU - 2.12 AU

Year: 1034 Days

Day: 20.3 Hours

Environment

Temp: -48 °C

Axial Tilt: 55.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.97

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 2.56 AU - 3.16 AU

Year: 1716 Days

Day: 17.1 Hours

Environment

Temp: -99 °C

Axial Tilt: 33.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 93,155,174 km

• M1: 45,478 km (0.029 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.8

Radius: 14.7

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 5.72 AU - 7.44 AU

Year: 5988 Days

Day: 9.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 93,155,174 km

• M1: 182,809 km (0.115 R)
• M2: 668,254 km (0.099 R)
• M3: 1,146,967 km (0.119 R)
• M4: 1,894,657 km (0.1 R)
• M5: 2,462,830 km (0.08 R)
• M6: 3,067,355 km (0.077 R)
• M7: 3,770,166 km (0.106 R)
• M8: 5,301,001 km (0.101 R)
• M9: 6,254,687 km (0.098 R)
• M10: 8,234,016 km (0.057 R)
• M11: 8,938,323 km (0.039 R)
• M12: 9,429,902 km (0.073 R)
• M13: 12,116,081 km (0.111 R)
• M14: 15,510,158 km (0.113 R)
• M15: 16,831,705 km (0.063 R)
• M16: 18,489,100 km (0.053 R)
• M17: 19,493,500 km (0.107 R)
• M18: 21,320,240 km (0.04 R)
• M19: 22,801,408 km (0.109 R)
• M20: 25,638,681 km (0.098 R)
• M21: 30,785,746 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.4

Radius: 9.7

Gravity: 9.79 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 6.13 AU - 9.95 AU

Year: 8088 Days

Day: 14.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 93,155,174 km

• M1: 120,725 km (0.071 R)
• M2: 498,161 km (0.088 R)
• M3: 862,432 km (0.056 R)
• M4: 1,214,884 km (0.075 R)
• M5: 1,827,488 km (0.052 R)
• M6: 2,204,923 km (0.1 R)
• M7: 3,186,435 km (0.079 R)
• M8: 4,130,248 km (0.034 R)
• M9: 5,444,315 km (0.115 R)
• M10: 5,881,291 km (0.102 R)
• M11: 6,269,048 km (0.089 R)
• M12: 8,295,501 km (0.1 R)
• M13: 8,966,597 km (0.119 R)
• M14: 9,966,210 km (0.113 R)
• M15: 10,467,513 km (0.084 R)
• M16: 16,935,676 km (0.116 R)
• M17: 23,751,654 km (0.114 R)
• M18: 28,552,549 km (0.103 R)
• M19: 30,495,077 km (0.112 R)
• M20: 31,873,921 km (0.092 R)
• M21: 33,072,648 km (0.058 R)
• M22: 33,404,756 km (0.036 R)
• M23: 34,641,481 km (0.087 R)
• M24: 39,396,749 km (0.103 R)
• M25: 40,020,273 km (0.064 R)
• M26: 44,704,631 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.5

Radius: 10.1

Gravity: 8.36 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 7.61 AU - 8.59 AU

Year: 8178 Days

Day: 9.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 93,155,174 km

• M1: 125,662 km (0.093 R)
• M2: 672,742 km (0.058 R)
• M3: 1,000,810 km (0.113 R)
• M4: 1,585,289 km (0.112 R)
• M5: 2,069,986 km (0.097 R)
• M6: 2,421,690 km (0.114 R)
• M7: 2,834,132 km (0.093 R)
• M8: 3,157,113 km (0.091 R)
• M9: 3,878,026 km (0.08 R)
• M10: 4,389,052 km (0.081 R)
• M11: 5,160,678 km (0.095 R)
• M12: 6,196,045 km (0.12 R)
• M13: 6,895,863 km (0.097 R)
• M14: 7,324,461 km (0.086 R)
• M15: 10,231,597 km (0.05 R)
• M16: 12,473,919 km (0.075 R)
• M17: 13,408,457 km (0.089 R)
• M18: 13,831,670 km (0.051 R)
• M19: 15,220,237 km (0.095 R)
• M20: 16,492,268 km (0.118 R)
• M21: 16,908,449 km (0.052 R)
• M22: 18,717,985 km (0.078 R)
• M23: 19,708,323 km (0.075 R)
• M24: 20,414,275 km (0.112 R)
• M25: 22,378,944 km (0.031 R)
• M26: 26,397,143 km (0.091 R)
• M27: 31,504,414 km (0.083 R)
• M28: 39,907,027 km (0.047 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 784.7

Radius: 7.8

Gravity: 12.9 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 15.77 AU - 15.87 AU

Year: 22323 Days

Day: 19.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 93,155,174 km

• M1: 113,694 km (0.12 R)
• M2: 421,866 km (0.085 R)
• M3: 771,327 km (0.103 R)
• M4: 1,221,766 km (0.117 R)
• M5: 2,015,981 km (0.04 R)
• M6: 2,980,438 km (0.067 R)
• M7: 6,301,661 km (0.113 R)
• M8: 8,980,959 km (0.078 R)
• M9: 10,986,617 km (0.1 R)
• M10: 11,921,454 km (0.098 R)
• M11: 12,337,935 km (0.105 R)
• M12: 13,053,611 km (0.112 R)
• M13: 19,519,231 km (0.092 R)
• M14: 21,289,871 km (0.096 R)
• M15: 35,621,347 km (0.1 R)
• M16: 36,051,740 km (0.081 R)
• M17: 37,216,210 km (0.113 R)
• M18: 43,579,954 km (0.116 R)
• M19: 46,248,331 km (0.066 R)
• M20: 55,285,838 km (0.078 R)
• M21: 57,224,477 km (0.075 R)
• M22: 68,480,968 km (0.09 R)
• M23: 77,470,155 km (0.083 R)
• M24: 80,632,804 km (0.11 R)
• M25: 81,622,992 km (0.073 R)
• M26: 84,133,842 km (0.047 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 714.4

Radius: 7.7

Gravity: 12.05 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 15.9 AU - 19.6 AU

Year: 26530 Days

Day: 23.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 93,155,174 km

• M1: 96,491 km (0.083 R)
• M2: 391,348 km (0.102 R)
• M3: 933,192 km (0.107 R)
• M4: 1,288,187 km (0.114 R)
• M5: 1,675,347 km (0.092 R)
• M6: 1,927,419 km (0.092 R)
• M7: 2,341,955 km (0.067 R)
• M8: 3,440,003 km (0.037 R)
• M9: 3,884,010 km (0.102 R)
• M10: 5,489,494 km (0.06 R)
• M11: 5,787,493 km (0.105 R)
• M12: 6,051,533 km (0.101 R)
• M13: 7,650,585 km (0.097 R)
• M14: 8,803,984 km (0.116 R)
• M15: 9,272,525 km (0.109 R)
• M16: 9,512,929 km (0.107 R)
• M17: 14,345,987 km (0.074 R)
• M18: 14,830,834 km (0.103 R)
• M19: 15,748,018 km (0.11 R)
• M20: 17,149,002 km (0.108 R)
• M21: 20,601,272 km (0.086 R)
• M22: 22,167,263 km (0.032 R)
• M23: 24,036,189 km (0.112 R)
• M24: 30,006,790 km (0.107 R)
• M25: 31,201,329 km (0.081 R)
• M26: 35,705,571 km (0.098 R)
• M27: 36,148,829 km (0.112 R)
• M28: 39,198,382 km (0.095 R)
• M29: 39,670,064 km (0.109 R)
• M30: 44,768,808 km (0.076 R)
• M31: 47,031,027 km (0.089 R)
• M32: 49,185,985 km (0.102 R)
• M33: 56,843,451 km (0.097 R)
• M34: 74,226,723 km (0.075 R)
• M35: 75,432,782 km (0.071 R)
• M36: 83,982,150 km (0.093 R)
• M37: 87,950,982 km (0.066 R)

Kuiper Belt

Range: 30.9 - 59.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 374 - 11,570 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit