🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.9

Radius: 8.3

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.59 AU - 0.75 AU

Year: 372 Days

Day: 9.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 20,755,391 km

• M1: 109,506 km (0.053 R)
• M2: 485,744 km (0.071 R)
• M3: 782,247 km (0.051 R)
• M4: 1,114,504 km (0.12 R)
• M5: 1,550,732 km (0.062 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 460.4

Radius: 11.3

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.76 AU - 0.88 AU

Year: 504 Days

Day: 7.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 20,755,391 km

• M1: 140,472 km (0.061 R)
• M2: 519,853 km (0.066 R)
• M3: 1,164,021 km (0.12 R)
• M4: 1,557,164 km (0.115 R)
• M5: 2,190,711 km (0.039 R)
• M6: 2,602,105 km (0.062 R)
• M7: 3,097,873 km (0.082 R)
• M8: 3,856,783 km (0.056 R)
• M9: 4,363,471 km (0.04 R)
• M10: 5,020,804 km (0.067 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171.1

Radius: 13.8

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.69 AU - 0.99 AU

Year: 522 Days

Day: 11.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 20,755,391 km

• M1: 172,038 km (0.036 R)
• M2: 848,370 km (0.103 R)
• M3: 1,277,566 km (0.092 R)
• M4: 1,864,737 km (0.076 R)
• M5: 3,120,911 km (0.094 R)
• M6: 3,640,165 km (0.059 R)
• M7: 4,073,251 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 227.9

Radius: 15

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.85 AU - 1.31 AU

Year: 761 Days

Day: 13.3 Hours

Environment

Temp: -169 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 20,755,391 km

• M1: 186,549 km (0.091 R)
• M2: 900,280 km (0.055 R)
• M3: 1,563,896 km (0.072 R)
• M4: 2,085,095 km (0.037 R)
• M5: 2,557,076 km (0.082 R)
• M6: 3,514,952 km (0.109 R)
• M7: 4,005,333 km (0.113 R)
• M8: 4,556,003 km (0.11 R)
• M9: 5,510,288 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.6

Radius: 8.4

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.95 AU - 1.37 AU

Year: 847 Days

Day: 7.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 20,755,391 km

• M1: 104,569 km (0.106 R)
• M2: 449,990 km (0.062 R)
• M3: 886,367 km (0.108 R)
• M4: 1,203,216 km (0.097 R)
• M5: 1,628,373 km (0.114 R)
• M6: 2,199,537 km (0.088 R)
• M7: 2,558,872 km (0.117 R)
• M8: 3,007,366 km (0.109 R)
• M9: 3,518,542 km (0.115 R)
• M10: 3,987,681 km (0.076 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 585.6

Radius: 11.7

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.31 AU - 1.65 AU

Year: 1221 Days

Day: 11 Hours

Environment

Temp: -194 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 20,755,391 km

• M1: 145,559 km (0.06 R)
• M2: 781,200 km (0.055 R)
• M3: 1,461,721 km (0.114 R)
• M4: 2,065,647 km (0.067 R)
• M5: 2,766,813 km (0.099 R)
• M6: 4,001,743 km (0.118 R)
• M7: 6,106,435 km (0.102 R)
• M8: 6,932,964 km (0.118 R)
• M9: 7,423,346 km (0.103 R)
• M10: 10,108,179 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950

Radius: 10.3

Gravity: 8.95 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 3.49 AU - 4.61 AU

Year: 5528 Days

Day: 12.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 20,755,391 km

• M1: 128,056 km (0.097 R)
• M2: 581,936 km (0.104 R)
• M3: 1,126,173 km (0.087 R)
• M4: 1,960,181 km (0.109 R)
• M5: 2,339,112 km (0.114 R)
• M6: 2,729,563 km (0.102 R)
• M7: 3,142,752 km (0.084 R)
• M8: 3,900,615 km (0.108 R)
• M9: 4,348,960 km (0.082 R)
• M10: 4,721,159 km (0.067 R)
• M11: 6,228,208 km (0.116 R)
• M12: 7,237,246 km (0.077 R)
• M13: 8,112,244 km (0.115 R)
• M14: 8,761,498 km (0.106 R)
• M15: 9,227,795 km (0.078 R)
• M16: 9,621,387 km (0.087 R)
• M17: 10,349,031 km (0.092 R)
• M18: 10,822,209 km (0.099 R)
• M19: 12,433,827 km (0.071 R)
• M20: 13,352,358 km (0.099 R)
• M21: 14,373,513 km (0.111 R)
• M22: 15,384,944 km (0.044 R)
• M23: 16,892,891 km (0.078 R)
• M24: 17,682,768 km (0.119 R)
• M25: 21,165,406 km (0.05 R)
• M26: 30,212,936 km (0.076 R)
• M27: 32,468,423 km (0.029 R)
• M28: 34,414,392 km (0.063 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178

Radius: 10

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 3.08 AU - 5.08 AU

Year: 5590 Days

Day: 14.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 20,755,391 km

• M1: 124,465 km (0.042 R)
• M2: 478,713 km (0.115 R)
• M3: 964,158 km (0.076 R)
• M4: 1,310,926 km (0.117 R)
• M5: 1,652,907 km (0.114 R)
• M6: 2,004,312 km (0.063 R)
• M7: 3,391,085 km (0.064 R)
• M8: 3,766,874 km (0.109 R)
• M9: 4,149,695 km (0.089 R)
• M10: 6,028,794 km (0.077 R)
• M11: 7,728,974 km (0.106 R)
• M12: 9,877,199 km (0.112 R)
• M13: 10,490,700 km (0.104 R)
• M14: 11,210,864 km (0.097 R)
• M15: 13,064,532 km (0.044 R)
• M16: 13,803,844 km (0.074 R)
• M17: 17,260,154 km (0.103 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: 380 - 18,774 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit