🌌 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: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.03

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.52 AU - 0.56 AU

Year: 144 Days

Day: 47.8 Hours

Environment

Temp: 238 °C

Axial Tilt: 38.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 77,223,680 km

• M1: 169,943 km (0.052 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.94

Radius: 0.98

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.47 AU - 0.65 AU

Year: 152 Days

Day: 23.7 Hours

Environment

Temp: 184 °C

Axial Tilt: 38.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1.1 AU - 1.68 AU

Year: 593 Days

Day: 43.4 Hours

Environment

Temp: -9 °C

Axial Tilt: 20.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.42 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.78

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.1 AU - 1.74 AU

Year: 612 Days

Day: 26.9 Hours

Environment

Temp: 0 °C

Axial Tilt: 17.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 77,223,680 km

• M1: 1,345,334 km (0.11 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.48

Radius: 0.75

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.77 AU - 2.39 AU

Year: 1085 Days

Day: 30.4 Hours

Environment

Temp: -72 °C

Axial Tilt: 14.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 77,223,680 km

• M1: 17,503 km (0.053 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22.9

Radius: 14.4

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 9.31 AU - 10.19 AU

Year: 11010 Days

Day: 5.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 77,223,680 km

• M1: 195,375 km (0.092 R)
• M2: 1,137,692 km (0.06 R)
• M3: 2,276,431 km (0.05 R)
• M4: 3,100,715 km (0.114 R)
• M5: 3,696,713 km (0.115 R)
• M6: 6,566,599 km (0.114 R)
• M7: 7,818,434 km (0.076 R)
• M8: 9,865,980 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 12.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 757

Radius: 9

Gravity: 9.35 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 10.6 AU - 13.92 AU

Year: 15525 Days

Day: 14.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 77,223,680 km

• M1: 114,592 km (0.088 R)
• M2: 455,376 km (0.065 R)
• M3: 808,576 km (0.067 R)
• M4: 1,902,885 km (0.083 R)
• M5: 2,326,546 km (0.079 R)
• M6: 2,883,349 km (0.07 R)
• M7: 3,232,511 km (0.101 R)
• M8: 3,723,042 km (0.099 R)
• M9: 5,496,974 km (0.085 R)
• M10: 6,781,271 km (0.117 R)
• M11: 8,603,972 km (0.118 R)
• M12: 9,172,145 km (0.078 R)
• M13: 11,087,745 km (0.102 R)
• M14: 19,795,239 km (0.059 R)
• M15: 23,953,162 km (0.102 R)
• M16: 24,459,701 km (0.102 R)
• M17: 26,128,764 km (0.089 R)
• M18: 31,954,255 km (0.118 R)
• M19: 34,073,757 km (0.111 R)
• M20: 35,624,938 km (0.102 R)
• M21: 36,684,988 km (0.118 R)
• M22: 38,452,188 km (0.105 R)
• M23: 39,286,645 km (0.119 R)
• M24: 40,275,337 km (0.078 R)
• M25: 40,704,234 km (0.103 R)
• M26: 40,991,761 km (0.063 R)
• M27: 44,244,917 km (0.031 R)
• M28: 48,790,747 km (0.11 R)
• M29: 49,441,199 km (0.077 R)
• M30: 50,427,797 km (0.052 R)
• M31: 53,294,241 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 494.7

Radius: 6.5

Gravity: 11.71 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 15.14 AU - 17.7 AU

Year: 24063 Days

Day: 24 Hours

Environment

Temp: -201 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 77,223,680 km

• M1: 80,783 km (0.109 R)
• M2: 297,101 km (0.087 R)
• M3: 569,220 km (0.077 R)
• M4: 836,850 km (0.108 R)
• M5: 1,271,731 km (0.115 R)
• M6: 1,702,723 km (0.05 R)
• M7: 2,561,564 km (0.088 R)
• M8: 3,894,033 km (0.027 R)
• M9: 4,280,444 km (0.107 R)
• M10: 5,092,461 km (0.079 R)
• M11: 5,515,225 km (0.081 R)
• M12: 8,039,090 km (0.09 R)
• M13: 10,434,751 km (0.096 R)
• M14: 11,307,505 km (0.119 R)
• M15: 12,706,544 km (0.06 R)
• M16: 13,126,615 km (0.067 R)
• M17: 14,823,055 km (0.101 R)
• M18: 17,419,176 km (0.12 R)
• M19: 18,377,350 km (0.092 R)
• M20: 19,739,888 km (0.091 R)
• M21: 22,562,949 km (0.069 R)
• M22: 23,282,515 km (0.063 R)
• M23: 27,808,000 km (0.067 R)
• M24: 28,754,506 km (0.08 R)
• M25: 29,356,787 km (0.104 R)
• M26: 30,711,545 km (0.109 R)
• M27: 32,625,500 km (0.083 R)
• M28: 32,886,549 km (0.072 R)
• M29: 35,025,349 km (0.081 R)
• M30: 46,956,378 km (0.112 R)
• M31: 50,182,157 km (0.118 R)
• M32: 52,830,937 km (0.115 R)
• M33: 63,542,892 km (0.1 R)
• M34: 67,694,084 km (0.092 R)
• M35: 69,188,566 km (0.074 R)
• M36: 73,355,914 km (0.03 R)

Kuiper Belt

Range: 30.3 - 56.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 280 - 13,479 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit