🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16

Radius: 8.4

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.84 AU - 1.14 AU

Year: 646 Days

Day: 9.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 25,289,934 km

• M1: 104,419 km (0.115 R)
• M2: 428,149 km (0.05 R)
• M3: 689,796 km (0.106 R)
• M4: 1,310,627 km (0.066 R)
• M5: 1,626,578 km (0.091 R)
• M6: 2,064,750 km (0.08 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 33.8

Radius: 12.3

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.19 AU - 1.45 AU

Year: 995 Days

Day: 12.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 25,289,934 km

• M1: 153,039 km (0.06 R)
• M2: 579,093 km (0.069 R)
• M3: 1,389,914 km (0.086 R)
• M4: 1,806,394 km (0.083 R)
• M5: 2,766,962 km (0.105 R)
• M6: 3,720,649 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102.8

Radius: 14.7

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.51 AU - 2.37 AU

Year: 1773 Days

Day: 7.6 Hours

Environment

Temp: -180 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 25,289,934 km

• M1: 182,809 km (0.075 R)
• M2: 670,647 km (0.099 R)
• M3: 1,406,070 km (0.07 R)
• M4: 1,965,716 km (0.047 R)
• M5: 2,982,383 km (0.041 R)
• M6: 3,523,329 km (0.081 R)
• M7: 4,174,529 km (0.097 R)
• M8: 5,499,367 km (0.073 R)
• M9: 6,082,649 km (0.037 R)
• M10: 6,541,915 km (0.09 R)
• M11: 7,045,910 km (0.064 R)
• M12: 7,621,264 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 436.9

Radius: 9.1

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 2.08 AU - 2.08 AU

Year: 1968 Days

Day: 12 Hours

Environment

Temp: -187 °C

Axial Tilt: 93.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 25,289,934 km

• M1: 113,246 km (0.115 R)
• M2: 647,908 km (0.12 R)
• M3: 1,046,736 km (0.118 R)
• M4: 2,128,179 km (0.096 R)
• M5: 2,442,036 km (0.113 R)
• M6: 4,681,516 km (0.097 R)
• M7: 6,888,234 km (0.066 R)
• M8: 7,255,796 km (0.072 R)
• M9: 7,664,049 km (0.041 R)
• M10: 8,030,264 km (0.114 R)
• M11: 8,497,009 km (0.088 R)
• M12: 9,230,937 km (0.109 R)
• M13: 9,581,145 km (0.049 R)
• M14: 12,750,227 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 781.9

Radius: 13.9

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 1.9 AU - 2.82 AU

Year: 2378 Days

Day: 12.9 Hours

Environment

Temp: -202 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 25,289,934 km

• M1: 174,880 km (0.12 R)
• M2: 826,977 km (0.107 R)
• M3: 1,495,979 km (0.11 R)
• M4: 2,569,343 km (0.108 R)
• M5: 3,664,998 km (0.117 R)
• M6: 4,126,657 km (0.103 R)
• M7: 5,215,431 km (0.104 R)
• M8: 6,007,701 km (0.096 R)
• M9: 6,737,439 km (0.119 R)
• M10: 7,197,303 km (0.052 R)
• M11: 8,771,671 km (0.105 R)
• M12: 9,426,611 km (0.112 R)
• M13: 10,603,497 km (0.058 R)
• M14: 12,125,655 km (0.102 R)
• M15: 13,071,264 km (0.047 R)
• M16: 13,652,601 km (0.116 R)
• M17: 16,511,715 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531.6

Radius: 12.5

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 2.86 AU - 3.52 AU

Year: 3738 Days

Day: 10.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 25,289,934 km

• M1: 174,880 km (0.076 R)
• M2: 602,281 km (0.09 R)
• M3: 1,314,666 km (0.082 R)
• M4: 1,777,971 km (0.067 R)
• M5: 2,761,277 km (0.034 R)
• M6: 3,952,825 km (0.053 R)
• M7: 4,448,442 km (0.099 R)
• M8: 5,333,314 km (0.095 R)
• M9: 6,162,086 km (0.043 R)
• M10: 6,771,099 km (0.076 R)
• M11: 7,293,195 km (0.077 R)
• M12: 8,913,939 km (0.105 R)
• M13: 11,011,002 km (0.067 R)
• M14: 11,647,690 km (0.093 R)
• M15: 12,444,149 km (0.05 R)
• M16: 13,229,239 km (0.07 R)
• M17: 15,837,029 km (0.101 R)
• M18: 17,037,103 km (0.116 R)
• M19: 18,355,808 km (0.095 R)
• M20: 20,365,057 km (0.091 R)
• M21: 21,651,898 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.1

Radius: 13.1

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 3.76 AU - 4.6 AU

Year: 5606 Days

Day: 11 Hours

Environment

Temp: -216 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 25,289,934 km

• M1: 162,912 km (0.058 R)
• M2: 641,176 km (0.027 R)
• M3: 1,057,657 km (0.074 R)
• M4: 1,958,835 km (0.12 R)
• M5: 2,529,850 km (0.105 R)
• M6: 3,285,020 km (0.045 R)
• M7: 4,053,953 km (0.067 R)
• M8: 5,536,318 km (0.11 R)
• M9: 6,627,036 km (0.057 R)
• M10: 8,381,520 km (0.099 R)
• M11: 8,855,596 km (0.034 R)
• M12: 10,180,733 km (0.109 R)
• M13: 11,019,828 km (0.088 R)
• M14: 11,949,878 km (0.043 R)
• M15: 13,270,678 km (0.109 R)
• M16: 13,916,043 km (0.115 R)
• M17: 14,582,202 km (0.103 R)
• M18: 16,652,188 km (0.039 R)
• M19: 19,097,963 km (0.108 R)
• M20: 19,856,873 km (0.088 R)
• M21: 20,966,441 km (0.105 R)
• M22: 22,954,148 km (0.114 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 248 - 19,880 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit