🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.29

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.57 AU - 0.67 AU

Year: 320 Days

Day: 36.1 Hours

Environment

Temp: -130 °C

Axial Tilt: 158.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 39,513,259 km

• M1: 90,357 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836.7

Radius: 10.3

Gravity: 7.89 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.81 AU - 1.05 AU

Year: 588 Days

Day: 5.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,513,259 km

• M1: 128,205 km (0.086 R)
• M2: 454,927 km (0.063 R)
• M3: 865,274 km (0.117 R)
• M4: 1,282,353 km (0.119 R)
• M5: 1,749,996 km (0.101 R)
• M6: 2,192,656 km (0.084 R)
• M7: 2,535,534 km (0.094 R)
• M8: 3,032,947 km (0.075 R)
• M9: 3,717,657 km (0.072 R)
• M10: 4,743,599 km (0.097 R)
• M11: 5,556,364 km (0.118 R)
• M12: 7,524,474 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.6

Radius: 14.4

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.87 AU - 1.01 AU

Year: 598 Days

Day: 13.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 39,513,259 km

• M1: 192,532 km (0.1 R)
• M2: 1,090,568 km (0.099 R)
• M3: 1,618,948 km (0.059 R)
• M4: 2,159,445 km (0.104 R)
• M5: 3,014,696 km (0.113 R)
• M6: 3,614,285 km (0.071 R)
• M7: 4,383,666 km (0.069 R)
• M8: 5,740,369 km (0.037 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 583

Radius: 10.9

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.15 AU - 1.55 AU

Year: 1029 Days

Day: 10.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 39,513,259 km

• M1: 135,536 km (0.089 R)
• M2: 522,246 km (0.095 R)
• M3: 1,038,209 km (0.074 R)
• M4: 1,395,150 km (0.11 R)
• M5: 1,790,537 km (0.094 R)
• M6: 2,250,251 km (0.104 R)
• M7: 2,726,870 km (0.059 R)
• M8: 3,353,835 km (0.119 R)
• M9: 4,010,569 km (0.074 R)
• M10: 4,913,392 km (0.099 R)
• M11: 5,422,773 km (0.104 R)
• M12: 6,350,280 km (0.073 R)
• M13: 8,024,280 km (0.065 R)
• M14: 9,567,233 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.2

Radius: 8.4

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 2.36 AU - 2.42 AU

Year: 2424 Days

Day: 11.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 39,513,259 km

• M1: 104,419 km (0.06 R)
• M2: 394,938 km (0.119 R)
• M3: 715,377 km (0.089 R)
• M4: 1,212,341 km (0.112 R)
• M5: 1,745,807 km (0.058 R)
• M6: 4,699,318 km (0.065 R)
• M7: 6,329,187 km (0.099 R)
• M8: 7,864,510 km (0.097 R)
• M9: 8,249,126 km (0.117 R)
• M10: 8,646,458 km (0.081 R)
• M11: 10,106,084 km (0.068 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.7

Radius: 10.3

Gravity: 6.55 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 2.99 AU - 3.79 AU

Year: 4095 Days

Day: 12 Hours

Environment

Temp: -199 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 39,513,259 km

• M1: 128,056 km (0.108 R)
• M2: 603,328 km (0.03 R)
• M3: 1,060,649 km (0.103 R)
• M4: 1,695,692 km (0.116 R)
• M5: 2,258,629 km (0.074 R)
• M6: 3,613,088 km (0.115 R)
• M7: 5,073,761 km (0.077 R)
• M8: 5,555,616 km (0.1 R)
• M9: 5,922,281 km (0.035 R)
• M10: 8,255,558 km (0.082 R)
• M11: 9,348,670 km (0.092 R)
• M12: 11,055,283 km (0.115 R)
• M13: 17,231,730 km (0.117 R)
• M14: 17,590,166 km (0.044 R)
• M15: 18,632,714 km (0.058 R)
• M16: 20,042,375 km (0.059 R)
• M17: 24,246,972 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.6

Radius: 10.4

Gravity: 8.05 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 4.18 AU - 6.64 AU

Year: 8255 Days

Day: 11.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 39,513,259 km

• M1: 129,402 km (0.106 R)
• M2: 499,358 km (0.107 R)
• M3: 875,896 km (0.116 R)
• M4: 1,287,140 km (0.068 R)
• M5: 2,133,415 km (0.112 R)
• M6: 3,577,633 km (0.115 R)
• M7: 4,036,899 km (0.113 R)
• M8: 4,981,310 km (0.113 R)
• M9: 5,522,256 km (0.111 R)
• M10: 7,223,932 km (0.032 R)
• M11: 7,668,088 km (0.104 R)
• M12: 8,087,560 km (0.103 R)
• M13: 9,438,878 km (0.088 R)
• M14: 10,778,676 km (0.065 R)
• M15: 11,252,303 km (0.082 R)
• M16: 11,684,940 km (0.103 R)
• M17: 14,328,783 km (0.099 R)
• M18: 15,161,295 km (0.109 R)
• M19: 16,025,821 km (0.048 R)
• M20: 20,767,176 km (0.112 R)
• M21: 21,749,885 km (0.076 R)
• M22: 24,974,916 km (0.059 R)
• M23: 25,618,935 km (0.046 R)
• M24: 27,520,473 km (0.112 R)
• M25: 28,705,438 km (0.06 R)
• M26: 29,107,856 km (0.098 R)
• M27: 32,901,508 km (0.045 R)
• M28: 34,461,814 km (0.05 R)
• M29: 34,916,592 km (0.042 R)
• M30: 36,657,612 km (0.101 R)
• M31: 39,686,670 km (0.111 R)
• M32: 43,404,925 km (0.067 R)
• M33: 45,552,552 km (0.11 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547.8

Radius: 13.9

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 4.47 AU - 6.45 AU

Year: 8369 Days

Day: 7.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 39,513,259 km

• M1: 172,935 km (0.097 R)
• M2: 904,918 km (0.065 R)
• M3: 1,535,921 km (0.115 R)
• M4: 2,365,741 km (0.106 R)
• M5: 3,757,749 km (0.103 R)
• M6: 6,576,322 km (0.085 R)
• M7: 7,730,171 km (0.071 R)
• M8: 8,627,908 km (0.113 R)
• M9: 12,218,256 km (0.099 R)
• M10: 13,782,601 km (0.084 R)
• M11: 16,244,085 km (0.04 R)
• M12: 16,769,622 km (0.117 R)
• M13: 17,993,482 km (0.06 R)
• M14: 19,422,292 km (0.067 R)
• M15: 20,695,220 km (0.052 R)
• M16: 22,023,051 km (0.113 R)
• M17: 24,418,112 km (0.102 R)
• M18: 25,546,380 km (0.117 R)
• M19: 25,989,339 km (0.101 R)
• M20: 26,437,534 km (0.045 R)
• M21: 31,714,599 km (0.099 R)
• M22: 33,583,824 km (0.116 R)
• M23: 35,196,789 km (0.099 R)
• M24: 36,411,972 km (0.035 R)
• M25: 38,229,287 km (0.111 R)
• M26: 38,926,114 km (0.072 R)
• M27: 39,395,402 km (0.085 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 289 - 19,336 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit