🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.59 AU - 0.73 AU

Year: 346 Days

Day: 16.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 41.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 21,066,910 km

• M1: 379,530 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 309.2

Radius: 12.3

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.66 AU - 0.98 AU

Year: 479 Days

Day: 13.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 21,066,910 km

• M1: 153,039 km (0.091 R)
• M2: 625,469 km (0.105 R)
• M3: 1,046,437 km (0.114 R)
• M4: 1,485,806 km (0.111 R)
• M5: 1,907,074 km (0.079 R)
• M6: 2,452,507 km (0.097 R)
• M7: 3,152,626 km (0.077 R)
• M8: 3,590,498 km (0.072 R)
• M9: 4,081,329 km (0.099 R)
• M10: 4,796,407 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 900.3

Radius: 12.1

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.96 AU - 0.98 AU

Year: 617 Days

Day: 10.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 21,066,910 km

• M1: 150,495 km (0.108 R)
• M2: 541,694 km (0.098 R)
• M3: 1,051,523 km (0.06 R)
• M4: 2,077,466 km (0.115 R)
• M5: 2,770,852 km (0.092 R)
• M6: 3,838,233 km (0.069 R)
• M7: 4,586,970 km (0.069 R)
• M8: 5,504,005 km (0.091 R)
• M9: 6,518,877 km (0.097 R)
• M10: 7,654,325 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.6

Radius: 8.7

Gravity: 5.46 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.95 AU - 2.81 AU

Year: 2371 Days

Day: 12.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 21,066,910 km

• M1: 108,159 km (0.048 R)
• M2: 435,779 km (0.101 R)
• M3: 735,573 km (0.032 R)
• M4: 1,116,748 km (0.094 R)
• M5: 1,708,108 km (0.111 R)
• M6: 2,262,518 km (0.103 R)
• M7: 3,177,608 km (0.115 R)
• M8: 3,675,320 km (0.108 R)
• M9: 4,072,652 km (0.115 R)
• M10: 4,619,582 km (0.116 R)
• M11: 5,326,283 km (0.046 R)
• M12: 5,980,773 km (0.081 R)
• M13: 7,562,771 km (0.081 R)
• M14: 8,267,526 km (0.106 R)
• M15: 8,824,479 km (0.095 R)
• M16: 9,672,699 km (0.055 R)
• M17: 10,431,908 km (0.076 R)
• M18: 10,935,455 km (0.061 R)
• M19: 11,342,361 km (0.046 R)
• M20: 12,225,736 km (0.092 R)
• M21: 12,948,593 km (0.04 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 341.4

Radius: 9.9

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 3.32 AU - 3.36 AU

Year: 3941 Days

Day: 12.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 21,066,910 km

• M1: 130,449 km (0.105 R)
• M2: 480,060 km (0.114 R)
• M3: 872,904 km (0.12 R)
• M4: 1,627,475 km (0.081 R)
• M5: 2,125,487 km (0.103 R)
• M6: 2,753,798 km (0.116 R)
• M7: 3,446,585 km (0.058 R)
• M8: 5,725,410 km (0.101 R)
• M9: 6,230,452 km (0.111 R)
• M10: 7,733,911 km (0.111 R)
• M11: 10,287,546 km (0.114 R)
• M12: 10,597,962 km (0.099 R)
• M13: 11,691,822 km (0.084 R)
• M14: 13,311,069 km (0.095 R)
• M15: 14,246,056 km (0.112 R)
• M16: 15,425,036 km (0.087 R)
• M17: 16,935,077 km (0.098 R)
• M18: 19,001,772 km (0.038 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165

Radius: 13.8

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 3.43 AU - 4.65 AU

Year: 5243 Days

Day: 9.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,066,910 km

• M1: 172,486 km (0.085 R)
• M2: 645,216 km (0.083 R)
• M3: 1,113,906 km (0.109 R)
• M4: 1,994,140 km (0.111 R)
• M5: 2,796,882 km (0.057 R)
• M6: 3,404,399 km (0.118 R)
• M7: 3,980,201 km (0.109 R)
• M8: 9,083,882 km (0.066 R)
• M9: 16,546,871 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191

Radius: 8.5

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 3.2 AU - 5.16 AU

Year: 5518 Days

Day: 11.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 21,066,910 km

• M1: 105,915 km (0.107 R)
• M2: 500,255 km (0.079 R)
• M3: 767,138 km (0.092 R)
• M4: 1,116,599 km (0.079 R)
• M5: 1,387,819 km (0.078 R)
• M6: 1,807,441 km (0.097 R)
• M7: 2,694,557 km (0.118 R)
• M8: 4,008,026 km (0.108 R)
• M9: 4,498,857 km (0.052 R)
• M10: 5,397,042 km (0.077 R)
• M11: 5,809,185 km (0.061 R)
• M12: 6,784,263 km (0.068 R)
• M13: 7,264,622 km (0.081 R)
• M14: 7,671,528 km (0.108 R)
• M15: 8,394,685 km (0.077 R)
• M16: 8,668,748 km (0.08 R)
• M17: 9,162,720 km (0.084 R)
• M18: 9,825,139 km (0.074 R)
• M19: 10,401,241 km (0.112 R)
• M20: 11,494,801 km (0.025 R)
• M21: 12,707,890 km (0.036 R)
• M22: 13,908,712 km (0.109 R)
• M23: 14,244,560 km (0.086 R)
• M24: 15,642,552 km (0.085 R)
• M25: 20,878,776 km (0.066 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 485 - 12,961 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit