🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.64 AU - 0.66 AU

Year: 333 Days

Day: 20.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 13.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,489,175 km

• M1: 20,645 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 394.5

Radius: 12.9

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.73 AU - 1.07 AU

Year: 543 Days

Day: 6.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,489,175 km

• M1: 160,369 km (0.084 R)
• M2: 572,212 km (0.111 R)
• M3: 978,370 km (0.119 R)
• M4: 1,854,415 km (0.099 R)
• M5: 2,366,938 km (0.058 R)
• M6: 2,952,763 km (0.084 R)
• M7: 3,395,722 km (0.063 R)
• M8: 4,572,908 km (0.053 R)
• M9: 5,154,245 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.3

Radius: 10.1

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.12 AU - 1.46 AU

Year: 932 Days

Day: 12.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,489,175 km

• M1: 129,851 km (0.086 R)
• M2: 475,871 km (0.083 R)
• M3: 1,556,117 km (0.079 R)
• M4: 2,580,563 km (0.104 R)
• M5: 3,559,831 km (0.047 R)
• M6: 4,082,227 km (0.118 R)
• M7: 4,712,333 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 866.7

Radius: 8.2

Gravity: 12.89 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 2.42 AU - 2.46 AU

Year: 2423 Days

Day: 10.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,489,175 km

• M1: 102,923 km (0.057 R)
• M2: 393,293 km (0.09 R)
• M3: 862,581 km (0.097 R)
• M4: 1,210,845 km (0.076 R)
• M5: 1,941,182 km (0.085 R)
• M6: 2,389,228 km (0.051 R)
• M7: 2,730,311 km (0.05 R)
• M8: 3,103,857 km (0.102 R)
• M9: 3,679,808 km (0.063 R)
• M10: 4,346,566 km (0.039 R)
• M11: 4,996,868 km (0.098 R)
• M12: 7,067,751 km (0.103 R)
• M13: 8,259,448 km (0.112 R)
• M14: 9,184,112 km (0.105 R)
• M15: 10,955,650 km (0.119 R)
• M16: 12,633,391 km (0.099 R)
• M17: 13,304,636 km (0.085 R)
• M18: 16,333,096 km (0.089 R)
• M19: 18,684,924 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253

Radius: 9.5

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 2.72 AU - 3.34 AU

Year: 3353 Days

Day: 7.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,489,175 km

• M1: 118,182 km (0.059 R)
• M2: 460,911 km (0.084 R)
• M3: 824,733 km (0.108 R)
• M4: 1,262,456 km (0.07 R)
• M5: 2,045,302 km (0.073 R)
• M6: 3,951,927 km (0.09 R)
• M7: 8,493,718 km (0.094 R)
• M8: 11,542,673 km (0.09 R)
• M9: 13,290,125 km (0.112 R)
• M10: 13,983,212 km (0.099 R)
• M11: 15,441,492 km (0.075 R)
• M12: 15,869,342 km (0.113 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 382

Radius: 5.9

Gravity: 10.97 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 5.48 AU - 7.36 AU

Year: 10343 Days

Day: 18.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 66,489,175 km

• M1: 74,500 km (0.1 R)
• M2: 281,842 km (0.029 R)
• M3: 986,299 km (0.103 R)
• M4: 1,227,451 km (0.073 R)
• M5: 1,456,036 km (0.099 R)
• M6: 1,800,261 km (0.089 R)
• M7: 2,749,010 km (0.104 R)
• M8: 3,480,993 km (0.031 R)
• M9: 4,840,987 km (0.032 R)
• M10: 5,447,606 km (0.109 R)
• M11: 8,429,840 km (0.102 R)
• M12: 9,719,074 km (0.104 R)
• M13: 10,582,404 km (0.093 R)
• M14: 10,931,565 km (0.073 R)
• M15: 11,864,757 km (0.085 R)
• M16: 12,133,135 km (0.097 R)
• M17: 13,420,126 km (0.103 R)
• M18: 16,262,635 km (0.118 R)
• M19: 18,389,617 km (0.063 R)
• M20: 18,676,995 km (0.052 R)
• M21: 21,557,652 km (0.057 R)
• M22: 21,877,043 km (0.081 R)
• M23: 24,031,103 km (0.114 R)
• M24: 27,521,071 km (0.108 R)
• M25: 28,086,402 km (0.093 R)
• M26: 32,995,905 km (0.096 R)
• M27: 33,420,164 km (0.114 R)
• M28: 34,824,440 km (0.109 R)
• M29: 37,981,852 km (0.119 R)
• M30: 38,331,014 km (0.119 R)
• M31: 39,749,351 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 596.2

Radius: 3.2

Gravity: 58.22 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 7.38 AU - 10.86 AU

Year: 17512 Days

Day: 19.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 66,489,175 km

• M1: 39,793 km (0.118 R)
• M2: 242,349 km (0.098 R)
• M3: 414,536 km (0.106 R)
• M4: 700,268 km (0.111 R)
• M5: 1,141,581 km (0.108 R)
• M6: 1,545,944 km (0.03 R)
• M7: 1,745,658 km (0.107 R)
• M8: 2,237,685 km (0.074 R)
• M9: 3,191,970 km (0.091 R)
• M10: 3,378,369 km (0.116 R)
• M11: 3,628,796 km (0.112 R)
• M12: 3,951,329 km (0.118 R)
• M13: 4,998,214 km (0.119 R)
• M14: 5,509,390 km (0.116 R)
• M15: 7,527,166 km (0.116 R)
• M16: 9,437,082 km (0.088 R)
• M17: 10,445,223 km (0.065 R)
• M18: 11,772,006 km (0.116 R)
• M19: 13,275,016 km (0.075 R)
• M20: 14,321,154 km (0.059 R)
• M21: 27,849,439 km (0.118 R)
• M22: 40,274,589 km (0.118 R)
• M23: 40,704,234 km (0.068 R)
• M24: 42,600,836 km (0.114 R)
• M25: 43,947,965 km (0.082 R)
• M26: 59,013,817 km (0.114 R)
• M27: 64,711,102 km (0.105 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 220 - 14,398 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit