🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.9

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.44 AU - 0.66 AU

Year: 263 Days

Day: 33.4 Hours

Environment

Temp: -116 °C

Axial Tilt: 6.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 432.2

Radius: 13.9

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.68 AU - 0.7 AU

Year: 370 Days

Day: 9.3 Hours

Environment

Temp: -128 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 35,834,060 km

• M1: 172,935 km (0.098 R)
• M2: 614,548 km (0.046 R)
• M3: 1,070,373 km (0.088 R)
• M4: 1,641,089 km (0.105 R)
• M5: 2,273,439 km (0.096 R)
• M6: 3,035,640 km (0.116 R)
• M7: 4,059,189 km (0.036 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234

Radius: 13.8

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.03 AU - 1.27 AU

Year: 796 Days

Day: 8.2 Hours

Environment

Temp: -176 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,834,060 km

• M1: 172,935 km (0.065 R)
• M2: 618,438 km (0.068 R)
• M3: 1,253,481 km (0.1 R)
• M4: 1,722,919 km (0.116 R)
• M5: 2,195,947 km (0.106 R)
• M6: 2,675,109 km (0.073 R)
• M7: 4,523,840 km (0.108 R)
• M8: 4,975,176 km (0.098 R)
• M9: 5,952,050 km (0.036 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 900.6

Radius: 8.9

Gravity: 11.37 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.26 AU - 1.34 AU

Year: 957 Days

Day: 7.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 35,834,060 km

• M1: 111,600 km (0.11 R)
• M2: 549,623 km (0.118 R)
• M3: 1,211,294 km (0.119 R)
• M4: 1,570,478 km (0.119 R)
• M5: 2,288,099 km (0.069 R)
• M6: 2,856,123 km (0.047 R)
• M7: 4,086,116 km (0.051 R)
• M8: 4,941,816 km (0.093 R)
• M9: 5,331,668 km (0.107 R)
• M10: 5,700,128 km (0.034 R)
• M11: 6,465,321 km (0.102 R)
• M12: 7,700,700 km (0.105 R)
• M13: 10,759,976 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.7

Radius: 8.8

Gravity: 9.66 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 2.26 AU - 3.66 AU

Year: 3288 Days

Day: 14.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,834,060 km

• M1: 109,506 km (0.062 R)
• M2: 383,120 km (0.08 R)
• M3: 806,632 km (0.117 R)
• M4: 1,256,772 km (0.086 R)
• M5: 2,022,414 km (0.094 R)
• M6: 2,746,318 km (0.117 R)
• M7: 3,141,256 km (0.116 R)
• M8: 3,672,927 km (0.06 R)
• M9: 4,794,612 km (0.037 R)
• M10: 5,088,871 km (0.101 R)
• M11: 5,877,850 km (0.052 R)
• M12: 10,220,975 km (0.102 R)
• M13: 11,957,059 km (0.069 R)
• M14: 12,500,248 km (0.11 R)
• M15: 16,220,897 km (0.058 R)
• M16: 17,512,974 km (0.104 R)
• M17: 18,273,081 km (0.032 R)
• M18: 18,993,843 km (0.117 R)
• M19: 19,361,405 km (0.084 R)
• M20: 22,202,867 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.6

Radius: 10.1

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 3.95 AU - 5.09 AU

Year: 6205 Days

Day: 5.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,834,060 km

• M1: 128,505 km (0.117 R)
• M2: 1,412,353 km (0.072 R)
• M3: 1,979,479 km (0.064 R)
• M4: 2,480,482 km (0.114 R)
• M5: 2,817,825 km (0.108 R)
• M6: 3,405,745 km (0.043 R)
• M7: 5,204,061 km (0.115 R)
• M8: 7,958,008 km (0.07 R)
• M9: 8,790,221 km (0.086 R)
• M10: 11,016,088 km (0.065 R)
• M11: 11,785,021 km (0.104 R)
• M12: 13,145,464 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 204.5

Radius: 5

Gravity: 8.18 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 5.76 AU - 8.14 AU

Year: 11830 Days

Day: 15.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 35,834,060 km

• M1: 352,602 km (0.102 R)
• M2: 907,760 km (0.088 R)
• M3: 1,830,480 km (0.102 R)
• M4: 2,866,744 km (0.082 R)
• M5: 3,476,355 km (0.092 R)
• M6: 3,776,149 km (0.077 R)
• M7: 4,348,511 km (0.073 R)
• M8: 5,238,469 km (0.086 R)
• M9: 5,509,241 km (0.108 R)
• M10: 6,277,276 km (0.051 R)
• M11: 7,483,933 km (0.107 R)
• M12: 7,788,963 km (0.039 R)
• M13: 12,331,951 km (0.111 R)
• M14: 12,650,146 km (0.116 R)
• M15: 14,092,718 km (0.078 R)
• M16: 16,456,963 km (0.038 R)
• M17: 18,308,835 km (0.113 R)
• M18: 18,862,347 km (0.115 R)
• M19: 20,813,253 km (0.085 R)
• M20: 22,342,143 km (0.079 R)
• M21: 22,894,608 km (0.035 R)
• M22: 23,054,079 km (0.043 R)
• M23: 23,294,632 km (0.085 R)
• M24: 25,536,057 km (0.101 R)
• M25: 26,930,010 km (0.065 R)
• M26: 29,490,228 km (0.066 R)
• M27: 29,773,716 km (0.095 R)
• M28: 30,442,419 km (0.111 R)
• M29: 31,218,981 km (0.105 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 221 - 19,416 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit