🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.81

Radius: 0.92

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.5 AU - 0.7 AU

Year: 305 Days

Day: 22.9 Hours

Environment

Temp: -131 °C

Axial Tilt: 4.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 2.22 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 654.9

Radius: 13.8

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 3 AU - 4.66 AU

Year: 4917 Days

Day: 14.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 135.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 68,640,831 km

• M1: 175,927 km (0.084 R)
• M2: 766,689 km (0.083 R)
• M3: 1,331,271 km (0.108 R)
• M4: 2,292,288 km (0.028 R)
• M5: 4,575,002 km (0.118 R)
• M6: 6,056,619 km (0.09 R)
• M7: 6,908,280 km (0.073 R)
• M8: 8,166,099 km (0.088 R)
• M9: 8,656,182 km (0.119 R)
• M10: 9,126,069 km (0.088 R)
• M11: 10,289,042 km (0.107 R)
• M12: 12,167,244 km (0.112 R)
• M13: 15,656,315 km (0.078 R)
• M14: 20,237,750 km (0.096 R)
• M15: 22,575,515 km (0.077 R)
• M16: 26,208,201 km (0.116 R)
• M17: 26,863,140 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 905.2

Radius: 14.4

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 3.14 AU - 5.1 AU

Year: 5486 Days

Day: 13.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 68,640,831 km

• M1: 179,218 km (0.095 R)
• M2: 663,915 km (0.081 R)
• M3: 1,135,448 km (0.096 R)
• M4: 1,856,510 km (0.045 R)
• M5: 2,340,459 km (0.036 R)
• M6: 4,722,655 km (0.11 R)
• M7: 5,670,806 km (0.07 R)
• M8: 6,338,013 km (0.075 R)
• M9: 7,272,551 km (0.041 R)
• M10: 8,022,635 km (0.085 R)
• M11: 11,352,982 km (0.114 R)
• M12: 12,054,297 km (0.079 R)
• M13: 12,890,998 km (0.102 R)
• M14: 13,990,991 km (0.074 R)
• M15: 14,564,101 km (0.074 R)
• M16: 15,696,108 km (0.12 R)
• M17: 19,234,247 km (0.09 R)
• M18: 20,231,915 km (0.111 R)
• M19: 21,716,824 km (0.108 R)
• M20: 26,607,178 km (0.08 R)
• M21: 30,533,524 km (0.039 R)
• M22: 33,389,796 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.6

Radius: 11.3

Gravity: 5.75 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 3.97 AU - 5.27 AU

Year: 6514 Days

Day: 11.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 68,640,831 km

• M1: 140,472 km (0.041 R)
• M2: 510,578 km (0.097 R)
• M3: 1,310,029 km (0.107 R)
• M4: 1,728,155 km (0.112 R)
• M5: 2,107,684 km (0.098 R)
• M6: 2,525,511 km (0.072 R)
• M7: 3,246,573 km (0.093 R)
• M8: 3,952,077 km (0.069 R)
• M9: 5,302,646 km (0.057 R)
• M10: 6,484,768 km (0.068 R)
• M11: 6,939,396 km (0.055 R)
• M12: 7,912,830 km (0.108 R)
• M13: 8,555,801 km (0.063 R)
• M14: 8,975,124 km (0.089 R)
• M15: 11,735,055 km (0.101 R)
• M16: 13,004,692 km (0.076 R)
• M17: 13,616,249 km (0.118 R)
• M18: 14,363,640 km (0.077 R)
• M19: 15,382,102 km (0.12 R)
• M20: 16,066,213 km (0.109 R)
• M21: 17,495,471 km (0.115 R)
• M22: 19,506,814 km (0.065 R)
• M23: 21,056,349 km (0.08 R)
• M24: 21,822,440 km (0.063 R)
• M25: 25,073,800 km (0.117 R)
• M26: 28,264,423 km (0.119 R)
• M27: 31,024,205 km (0.07 R)
• M28: 33,028,966 km (0.09 R)
• M29: 34,167,705 km (0.092 R)
• M30: 34,799,756 km (0.063 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 940.9

Radius: 3.1

Gravity: 97.91 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 6.07 AU - 9.77 AU

Year: 14622 Days

Day: 19 Hours

Environment

Temp: -223 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 68,640,831 km

• M1: 76,445 km (0.061 R)
• M2: 179,069 km (0.108 R)
• M3: 1,097,600 km (0.074 R)
• M4: 1,528,441 km (0.063 R)
• M5: 1,711,699 km (0.108 R)
• M6: 1,872,367 km (0.053 R)
• M7: 2,102,149 km (0.106 R)
• M8: 2,481,529 km (0.083 R)
• M9: 2,640,851 km (0.102 R)
• M10: 3,714,515 km (0.119 R)
• M11: 6,629,280 km (0.095 R)
• M12: 10,426,224 km (0.066 R)
• M13: 12,810,215 km (0.077 R)
• M14: 13,562,693 km (0.036 R)
• M15: 16,073,992 km (0.089 R)
• M16: 19,671,970 km (0.102 R)
• M17: 21,514,268 km (0.096 R)
• M18: 23,468,465 km (0.046 R)
• M19: 24,695,916 km (0.089 R)
• M20: 24,800,185 km (0.117 R)
• M21: 25,431,488 km (0.084 R)
• M22: 26,073,413 km (0.072 R)
• M23: 31,602,401 km (0.05 R)
• M24: 32,219,641 km (0.108 R)
• M25: 32,344,107 km (0.103 R)
• M26: 33,478,208 km (0.116 R)
• M27: 39,834,323 km (0.068 R)
• M28: 44,593,180 km (0.073 R)
• M29: 46,948,599 km (0.045 R)
• M30: 50,049,613 km (0.092 R)
• M31: 50,383,815 km (0.082 R)
• M32: 50,719,363 km (0.092 R)
• M33: 57,383,050 km (0.047 R)
• M34: 68,435,192 km (0.093 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: 350 - 15,416 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit