🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.79

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.68 AU - 0.72 AU

Year: 212 Days

Day: 12.7 Hours

Environment

Temp: 151 °C

Axial Tilt: 15.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.63

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.7 AU - 0.74 AU

Year: 221 Days

Day: 47.5 Hours

Environment

Temp: 112 °C

Axial Tilt: 27.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 85,318,057 km

• M1: 160,818 km (0.039 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.79

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.73 AU - 1.13 AU

Year: 324 Days

Day: 42.4 Hours

Environment

Temp: 95 °C

Axial Tilt: 32.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 85,318,057 km

• M1: 44,431 km (0.108 R)
• M2: 544,387 km (0.114 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.35 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.58

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.22 AU - 1.48 AU

Year: 567 Days

Day: 43.5 Hours

Environment

Temp: 1 °C

Axial Tilt: 37.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.93

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 3.92 AU - 4.02 AU

Year: 2861 Days

Day: 26.8 Hours

Environment

Temp: -113 °C

Axial Tilt: 35.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.8

Radius: 9.8

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 4.67 AU - 6.45 AU

Year: 4741 Days

Day: 5.1 Hours

Environment

Temp: -146 °C

Axial Tilt: 87.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 85,318,057 km

• M1: 121,922 km (0.055 R)
• M2: 535,560 km (0.038 R)
• M3: 858,542 km (0.118 R)
• M4: 1,237,773 km (0.051 R)
• M5: 1,816,567 km (0.059 R)
• M6: 2,567,099 km (0.085 R)
• M7: 4,673,138 km (0.098 R)
• M8: 5,643,430 km (0.116 R)
• M9: 6,341,454 km (0.089 R)
• M10: 9,479,419 km (0.118 R)
• M11: 11,745,527 km (0.107 R)
• M12: 12,210,328 km (0.1 R)
• M13: 16,383,211 km (0.105 R)
• M14: 16,905,307 km (0.112 R)
• M15: 19,232,601 km (0.111 R)
• M16: 19,813,640 km (0.11 R)
• M17: 20,339,925 km (0.05 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.7

Radius: 9.6

Gravity: 9.05 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 5.54 AU - 5.7 AU

Year: 4818 Days

Day: 6.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 85,318,057 km

• M1: 126,111 km (0.096 R)
• M2: 702,512 km (0.083 R)
• M3: 1,194,988 km (0.101 R)
• M4: 1,825,244 km (0.089 R)
• M5: 2,200,884 km (0.091 R)
• M6: 3,070,945 km (0.087 R)
• M7: 3,628,197 km (0.114 R)
• M8: 4,202,952 km (0.072 R)
• M9: 7,806,166 km (0.077 R)
• M10: 8,965,101 km (0.109 R)
• M11: 9,756,175 km (0.107 R)
• M12: 10,775,086 km (0.114 R)
• M13: 11,334,283 km (0.079 R)
• M14: 22,961,927 km (0.059 R)
• M15: 24,360,068 km (0.088 R)
• M16: 28,628,844 km (0.102 R)
• M17: 31,079,107 km (0.083 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820.8

Radius: 10.8

Gravity: 7.04 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 5.53 AU - 7.65 AU

Year: 6118 Days

Day: 7.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 85,318,057 km

• M1: 134,488 km (0.072 R)
• M2: 747,690 km (0.084 R)
• M3: 1,366,277 km (0.086 R)
• M4: 2,108,732 km (0.117 R)
• M5: 2,473,900 km (0.072 R)
• M6: 2,940,645 km (0.068 R)
• M7: 3,465,584 km (0.119 R)
• M8: 3,833,595 km (0.099 R)
• M9: 5,669,759 km (0.101 R)
• M10: 6,658,003 km (0.118 R)
• M11: 7,193,414 km (0.111 R)
• M12: 7,873,785 km (0.112 R)
• M13: 8,513,914 km (0.118 R)
• M14: 11,730,717 km (0.112 R)
• M15: 12,889,502 km (0.095 R)
• M16: 14,414,054 km (0.069 R)
• M17: 15,680,400 km (0.104 R)
• M18: 18,021,756 km (0.072 R)
• M19: 18,641,690 km (0.115 R)
• M20: 34,858,249 km (0.055 R)
• M21: 35,928,771 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 14.1

Radius: 6.9

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 13.79 AU - 17.51 AU

Year: 22390 Days

Day: 24.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 85,318,057 km

• M1: 3,198,851 km (0.075 R)
• M2: 3,573,444 km (0.108 R)
• M3: 6,672,364 km (0.063 R)
• M4: 8,034,453 km (0.086 R)
• M5: 14,834,274 km (0.115 R)
• M6: 15,875,027 km (0.101 R)
• M7: 19,901,304 km (0.101 R)

Planet 10 - Ice Giant

Semi-Major Axis: 19.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 382.8

Radius: 5.9

Gravity: 11 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 18.3 AU - 21.22 AU

Year: 31767 Days

Day: 17.5 Hours

Environment

Temp: -194 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 85,318,057 km

• M1: 73,453 km (0.11 R)
• M2: 429,196 km (0.096 R)
• M3: 897,138 km (0.076 R)
• M4: 1,732,643 km (0.083 R)
• M5: 2,195,648 km (0.102 R)
• M6: 2,515,787 km (0.101 R)
• M7: 4,356,290 km (0.09 R)
• M8: 6,166,125 km (0.06 R)
• M9: 8,811,165 km (0.081 R)
• M10: 22,315,215 km (0.05 R)
• M11: 23,268,303 km (0.096 R)
• M12: 24,469,724 km (0.095 R)
• M13: 26,523,852 km (0.117 R)
• M14: 28,198,899 km (0.116 R)
• M15: 35,463,671 km (0.088 R)
• M16: 38,687,954 km (0.091 R)
• M17: 45,041,077 km (0.071 R)
• M18: 47,246,748 km (0.09 R)
• M19: 50,058,888 km (0.038 R)
• M20: 61,391,825 km (0.116 R)
• M21: 70,200,446 km (0.06 R)
• M22: 70,876,180 km (0.074 R)
• M23: 80,305,035 km (0.111 R)
• M24: 80,550,824 km (0.106 R)

Kuiper Belt

Range: 30.3 - 58.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 389 - 14,520 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit