🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.53

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.49 AU - 0.67 AU

Year: 197 Days

Day: 32.5 Hours

Environment

Temp: 9 °C

Axial Tilt: 1.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 60,537,231 km

• M1: 114,442 km (0.048 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.08

Radius: 1.03

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.65 AU - 0.67 AU

Year: 239 Days

Day: 43.5 Hours

Environment

Temp: 5 °C

Axial Tilt: 35 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 60,537,231 km

• M1: 99,034 km (0.116 R)
• M2: 257,458 km (0.117 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.1

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.74 AU - 0.88 AU

Year: 325 Days

Day: 47.6 Hours

Environment

Temp: -36 °C

Axial Tilt: 16 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.83 AU - 1.07 AU

Year: 413 Days

Day: 40 Hours

Environment

Temp: -56 °C

Axial Tilt: 34 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482.7

Radius: 12.3

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 2.65 AU - 3.01 AU

Year: 2124 Days

Day: 11.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,537,231 km

• M1: 153,039 km (0.109 R)
• M2: 1,079,498 km (0.071 R)
• M3: 2,922,394 km (0.091 R)
• M4: 3,351,740 km (0.107 R)
• M5: 3,805,620 km (0.117 R)
• M6: 4,224,644 km (0.115 R)
• M7: 5,671,106 km (0.097 R)
• M8: 6,369,129 km (0.119 R)
• M9: 8,231,324 km (0.1 R)
• M10: 9,352,709 km (0.104 R)
• M11: 12,051,156 km (0.106 R)
• M12: 12,880,077 km (0.12 R)
• M13: 14,563,652 km (0.067 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 628.7

Radius: 11.2

Gravity: 5.01 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 2.85 AU - 3.85 AU

Year: 2736 Days

Day: 13.7 Hours

Environment

Temp: -162 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,537,231 km

• M1: 150,047 km (0.084 R)
• M2: 619,634 km (0.055 R)
• M3: 1,200,523 km (0.105 R)
• M4: 1,856,958 km (0.087 R)
• M5: 2,335,672 km (0.034 R)
• M6: 3,526,022 km (0.076 R)
• M7: 5,297,261 km (0.058 R)
• M8: 9,933,598 km (0.089 R)
• M9: 10,422,035 km (0.091 R)
• M10: 12,110,247 km (0.076 R)
• M11: 14,635,608 km (0.06 R)
• M12: 19,573,535 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.1

Radius: 11.9

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 3.52 AU - 3.54 AU

Year: 2959 Days

Day: 5.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,537,231 km

• M1: 148,102 km (0.11 R)
• M2: 587,620 km (0.075 R)
• M3: 1,026,092 km (0.098 R)
• M4: 1,449,903 km (0.084 R)
• M5: 1,903,184 km (0.119 R)
• M6: 2,466,121 km (0.119 R)
• M7: 2,997,941 km (0.086 R)
• M8: 3,394,226 km (0.064 R)
• M9: 6,100,003 km (0.071 R)
• M10: 6,985,473 km (0.09 R)
• M11: 7,820,677 km (0.11 R)
• M12: 8,793,064 km (0.062 R)
• M13: 10,645,384 km (0.114 R)
• M14: 11,231,509 km (0.027 R)
• M15: 14,542,110 km (0.089 R)
• M16: 15,107,590 km (0.063 R)
• M17: 18,513,484 km (0.091 R)
• M18: 21,464,302 km (0.072 R)
• M19: 22,741,569 km (0.083 R)
• M20: 23,224,770 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10.1

Radius: 13.5

Gravity: 0.06 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 3.27 AU - 5.03 AU

Year: 3772 Days

Day: 12.2 Hours

Environment

Temp: -169 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 60,537,231 km

• M1: 167,849 km (0.107 R)
• M2: 2,626,041 km (0.114 R)
• M3: 4,044,378 km (0.107 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.7

Radius: 11.7

Gravity: 6.74 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 7.46 AU - 10.72 AU

Year: 12229 Days

Day: 9 Hours

Environment

Temp: -201 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 60,537,231 km

• M1: 149,299 km (0.119 R)
• M2: 521,648 km (0.091 R)
• M3: 1,231,639 km (0.115 R)
• M4: 2,142,989 km (0.077 R)
• M5: 2,603,901 km (0.034 R)
• M6: 3,727,829 km (0.105 R)
• M7: 5,325,086 km (0.093 R)
• M8: 5,947,413 km (0.095 R)
• M9: 7,559,330 km (0.106 R)
• M10: 8,251,071 km (0.111 R)
• M11: 9,341,489 km (0.086 R)
• M12: 10,413,957 km (0.112 R)
• M13: 15,031,594 km (0.109 R)
• M14: 21,487,490 km (0.032 R)
• M15: 22,220,221 km (0.102 R)
• M16: 28,365,851 km (0.065 R)
• M17: 32,958,655 km (0.092 R)
• M18: 35,052,427 km (0.093 R)
• M19: 41,582,075 km (0.092 R)
• M20: 43,878,252 km (0.118 R)
• M21: 45,057,532 km (0.095 R)
• M22: 45,655,026 km (0.109 R)
• M23: 52,911,121 km (0.092 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 492 - 16,683 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit