🌌 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: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.48 AU - 0.58 AU

Year: 249 Days

Day: 31.6 Hours

Environment

Temp: -117 °C

Axial Tilt: 41.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.97

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.56 AU - 0.74 AU

Year: 338 Days

Day: 19.1 Hours

Environment

Temp: -127 °C

Axial Tilt: 45.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 746.2

Radius: 11.5

Gravity: 5.64 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.11 AU - 1.55 AU

Year: 990 Days

Day: 10.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 69,622,356 km

• M1: 143,016 km (0.111 R)
• M2: 649,404 km (0.097 R)
• M3: 1,073,215 km (0.104 R)
• M4: 1,452,595 km (0.032 R)
• M5: 3,150,681 km (0.096 R)
• M6: 3,639,118 km (0.03 R)
• M7: 4,449,190 km (0.033 R)
• M8: 4,860,435 km (0.061 R)
• M9: 5,927,217 km (0.094 R)
• M10: 6,583,952 km (0.101 R)
• M11: 6,977,245 km (0.12 R)
• M12: 8,412,187 km (0.099 R)
• M13: 9,765,899 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185.2

Radius: 9.3

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.33 AU - 1.41 AU

Year: 1035 Days

Day: 6.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 69,622,356 km

• M1: 115,639 km (0.075 R)
• M2: 723,754 km (0.059 R)
• M3: 1,366,427 km (0.095 R)
• M4: 1,844,093 km (0.055 R)
• M5: 3,440,751 km (0.037 R)
• M6: 4,788,329 km (0.097 R)
• M7: 5,821,452 km (0.05 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 369.1

Radius: 14.8

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.37 AU - 2.17 AU

Year: 1520 Days

Day: 14.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,622,356 km

• M1: 184,155 km (0.086 R)
• M2: 677,080 km (0.091 R)
• M3: 1,469,649 km (0.056 R)
• M4: 4,144,908 km (0.1 R)
• M5: 5,037,858 km (0.1 R)
• M6: 5,530,783 km (0.072 R)
• M7: 6,500,177 km (0.076 R)
• M8: 7,681,551 km (0.07 R)
• M9: 8,283,533 km (0.099 R)
• M10: 10,034,277 km (0.095 R)
• M11: 11,013,395 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942.6

Radius: 14.8

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 2.67 AU - 3.71 AU

Year: 3679 Days

Day: 6.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 69,622,356 km

• M1: 184,005 km (0.088 R)
• M2: 656,435 km (0.107 R)
• M3: 1,224,608 km (0.06 R)
• M4: 1,976,786 km (0.061 R)
• M5: 2,813,188 km (0.108 R)
• M6: 3,876,081 km (0.081 R)
• M7: 4,512,919 km (0.105 R)
• M8: 5,245,649 km (0.081 R)
• M9: 8,508,678 km (0.087 R)
• M10: 10,416,799 km (0.042 R)
• M11: 11,335,928 km (0.116 R)
• M12: 11,885,102 km (0.063 R)
• M13: 12,644,910 km (0.095 R)
• M14: 13,285,936 km (0.078 R)
• M15: 15,174,909 km (0.049 R)
• M16: 16,646,503 km (0.089 R)
• M17: 17,117,886 km (0.091 R)
• M18: 17,903,125 km (0.107 R)
• M19: 18,460,676 km (0.117 R)
• M20: 21,148,950 km (0.099 R)
• M21: 21,912,348 km (0.111 R)
• M22: 23,421,192 km (0.032 R)
• M23: 26,644,877 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 394.2

Radius: 5.1

Gravity: 15.16 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 10.07 AU - 11.63 AU

Year: 23076 Days

Day: 16.9 Hours

Environment

Temp: -237 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,622,356 km

• M1: 64,626 km (0.088 R)
• M2: 877,092 km (0.077 R)
• M3: 2,095,866 km (0.09 R)
• M4: 3,281,728 km (0.102 R)
• M5: 4,350,306 km (0.114 R)
• M6: 4,753,024 km (0.104 R)
• M7: 7,998,998 km (0.057 R)
• M8: 10,774,787 km (0.049 R)
• M9: 12,213,769 km (0.084 R)
• M10: 12,476,462 km (0.11 R)
• M11: 12,676,026 km (0.079 R)
• M12: 13,495,224 km (0.104 R)
• M13: 17,209,141 km (0.054 R)
• M14: 19,610,336 km (0.074 R)
• M15: 21,361,080 km (0.091 R)
• M16: 29,408,548 km (0.082 R)
• M17: 30,961,224 km (0.103 R)
• M18: 33,072,798 km (0.093 R)
• M19: 54,759,702 km (0.052 R)
• M20: 56,375,359 km (0.07 R)
• M21: 59,513,324 km (0.112 R)
• M22: 61,990,216 km (0.051 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 312 - 11,718 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit