🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.77

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.88 AU - 0.98 AU

Year: 328 Days

Day: 34.2 Hours

Environment

Temp: 98 °C

Axial Tilt: 27.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.75

Radius: 1.25

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.46 AU - 1.9 AU

Year: 795 Days

Day: 36.7 Hours

Environment

Temp: -49 °C

Axial Tilt: 21.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 6.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.5

Radius: 12.6

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 5.17 AU - 7.91 AU

Year: 6109 Days

Day: 11.7 Hours

Environment

Temp: -145 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 17,710,171 km

• M1: 156,629 km (0.106 R)
• M2: 767,587 km (0.067 R)
• M3: 1,244,953 km (0.087 R)
• M4: 1,680,283 km (0.067 R)
• M5: 2,233,347 km (0.047 R)
• M6: 2,817,377 km (0.108 R)
• M7: 3,242,534 km (0.086 R)
• M8: 4,224,195 km (0.079 R)
• M9: 5,704,316 km (0.102 R)
• M10: 6,453,054 km (0.116 R)
• M11: 11,308,851 km (0.081 R)
• M12: 11,866,253 km (0.092 R)
• M13: 12,588,960 km (0.096 R)
• M14: 13,238,664 km (0.096 R)
• M15: 14,551,235 km (0.111 R)
• M16: 18,944,626 km (0.048 R)
• M17: 24,611,542 km (0.063 R)
• M18: 26,348,224 km (0.058 R)

Planet 4 - Gas Giant

Semi-Major Axis: 8.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736.4

Radius: 12

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 8.18 AU - 8.82 AU

Year: 9051 Days

Day: 6.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 17,710,171 km

• M1: 150,495 km (0.068 R)
• M2: 585,526 km (0.1 R)
• M3: 1,289,384 km (0.107 R)
• M4: 1,765,255 km (0.103 R)
• M5: 3,124,501 km (0.104 R)
• M6: 3,566,563 km (0.053 R)
• M7: 4,077,140 km (0.096 R)
• M8: 4,753,921 km (0.041 R)
• M9: 5,374,004 km (0.098 R)
• M10: 5,771,486 km (0.089 R)
• M11: 8,106,110 km (0.066 R)
• M12: 9,747,648 km (0.043 R)
• M13: 10,341,252 km (0.055 R)
• M14: 10,750,253 km (0.103 R)
• M15: 11,820,177 km (0.117 R)
• M16: 13,375,695 km (0.098 R)
• M17: 14,171,556 km (0.042 R)
• M18: 17,030,222 km (0.081 R)
• M19: 19,392,821 km (0.097 R)
• M20: 20,652,584 km (0.057 R)
• M21: 22,303,098 km (0.097 R)
• M22: 24,578,033 km (0.085 R)
• M23: 27,003,762 km (0.08 R)
• M24: 29,380,723 km (0.077 R)
• M25: 30,411,003 km (0.12 R)
• M26: 37,105,657 km (0.063 R)
• M27: 38,187,848 km (0.106 R)
• M28: 40,289,100 km (0.048 R)
• M29: 41,176,365 km (0.03 R)
• M30: 42,076,645 km (0.105 R)
• M31: 44,856,323 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 27.1

Radius: 11.9

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 9.25 AU - 10.45 AU

Year: 11291 Days

Day: 8.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 17,710,171 km

• M1: 150,795 km (0.078 R)
• M2: 3,960,454 km (0.114 R)
• M3: 9,973,540 km (0.118 R)
• M4: 11,202,038 km (0.11 R)
• M5: 13,513,624 km (0.063 R)
• M6: 15,063,159 km (0.104 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 300 - 15,958 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit