🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.67 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.1

Radius: 1.35

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 1.04 AU - 1.64 AU

Year: 584 Days

Day: 18.5 Hours

Environment

Temp: -42 °C

Axial Tilt: 16.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,919,391 km

• M1: 36,651 km (0.093 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.97 AU - 3.05 AU

Year: 1498 Days

Day: 31.1 Hours

Environment

Temp: -99 °C

Axial Tilt: 37.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 58,919,391 km

• M1: 115,789 km (0.042 R)
• M2: 375,491 km (0.118 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.72

Radius: 1.49

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 2.22 AU - 3.1 AU

Year: 1634 Days

Day: 24.6 Hours

Environment

Temp: -93 °C

Axial Tilt: 46.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,919,391 km

• M1: 34,707 km (0.097 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.43

Radius: 0.71

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.61 AU - 3.15 AU

Year: 1841 Days

Day: 30 Hours

Environment

Temp: -114 °C

Axial Tilt: 31.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.61

Radius: 1.21

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 2.86 AU - 2.92 AU

Year: 1851 Days

Day: 39 Hours

Environment

Temp: -103 °C

Axial Tilt: 13.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,919,391 km

• M1: 740,509 km (0.102 R)

Asteroid Belt

Center: 3.6 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Terrestrial

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.93

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 3.56 AU - 5.04 AU

Year: 3359 Days

Day: 46.3 Hours

Environment

Temp: -136 °C

Axial Tilt: 120.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577.4

Radius: 9.3

Gravity: 6.68 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 3.74 AU - 5.18 AU

Year: 3548 Days

Day: 6.9 Hours

Environment

Temp: -140 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 58,919,391 km

• M1: 115,639 km (0.086 R)
• M2: 531,072 km (0.105 R)
• M3: 1,384,229 km (0.108 R)
• M4: 1,706,164 km (0.111 R)
• M5: 2,012,839 km (0.119 R)
• M6: 2,550,793 km (0.068 R)
• M7: 2,921,048 km (0.103 R)
• M8: 3,892,686 km (0.093 R)
• M9: 4,944,060 km (0.086 R)
• M10: 5,367,572 km (0.119 R)
• M11: 5,869,622 km (0.118 R)
• M12: 6,460,534 km (0.118 R)
• M13: 7,695,314 km (0.086 R)
• M14: 8,578,241 km (0.088 R)
• M15: 9,227,945 km (0.039 R)
• M16: 10,666,328 km (0.092 R)
• M17: 13,402,623 km (0.036 R)
• M18: 15,345,450 km (0.05 R)
• M19: 16,032,853 km (0.077 R)
• M20: 16,630,346 km (0.094 R)
• M21: 17,468,992 km (0.117 R)
• M22: 19,781,177 km (0.066 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 401.5

Radius: 5.8

Gravity: 11.94 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 12.99 AU - 13.15 AU

Year: 17801 Days

Day: 16.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 58,919,391 km

• M1: 73,303 km (0.11 R)
• M2: 376,837 km (0.073 R)
• M3: 586,573 km (0.1 R)
• M4: 1,692,999 km (0.11 R)
• M5: 3,150,681 km (0.067 R)
• M6: 4,247,832 km (0.107 R)
• M7: 4,916,085 km (0.114 R)
• M8: 7,606,005 km (0.108 R)
• M9: 9,545,840 km (0.086 R)
• M10: 10,186,717 km (0.045 R)
• M11: 11,613,432 km (0.061 R)
• M12: 12,593,448 km (0.07 R)
• M13: 15,789,606 km (0.097 R)
• M14: 16,608,954 km (0.073 R)
• M15: 18,010,088 km (0.097 R)
• M16: 22,683,675 km (0.045 R)
• M17: 24,799,138 km (0.027 R)
• M18: 24,997,804 km (0.075 R)
• M19: 26,109,167 km (0.05 R)
• M20: 29,196,418 km (0.073 R)
• M21: 30,656,194 km (0.075 R)
• M22: 31,928,674 km (0.072 R)
• M23: 33,842,030 km (0.114 R)
• M24: 34,455,232 km (0.077 R)
• M25: 35,075,914 km (0.11 R)
• M26: 36,724,332 km (0.116 R)
• M27: 37,502,241 km (0.092 R)
• M28: 39,091,120 km (0.117 R)
• M29: 40,311,689 km (0.082 R)
• M30: 42,402,320 km (0.094 R)
• M31: 43,402,232 km (0.115 R)
• M32: 45,895,729 km (0.11 R)
• M33: 48,019,720 km (0.099 R)
• M34: 52,136,354 km (0.044 R)
• M35: 53,946,787 km (0.065 R)
• M36: 55,628,417 km (0.114 R)
• M37: 58,566,968 km (0.11 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 437 - 12,821 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit