🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.7 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.2

Radius: 8.7

Gravity: 8.04 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.35 AU - 1.45 AU

Year: 1124 Days

Day: 8.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 72,739,984 km

• M1: 108,159 km (0.093 R)
• M2: 406,457 km (0.07 R)
• M3: 894,894 km (0.104 R)
• M4: 1,342,192 km (0.102 R)
• M5: 1,903,932 km (0.061 R)
• M6: 2,180,090 km (0.055 R)
• M7: 2,459,688 km (0.104 R)
• M8: 3,202,890 km (0.047 R)
• M9: 4,071,605 km (0.119 R)
• M10: 5,343,636 km (0.055 R)
• M11: 6,334,722 km (0.118 R)
• M12: 7,076,578 km (0.082 R)
• M13: 7,443,691 km (0.041 R)
• M14: 7,849,251 km (0.089 R)
• M15: 10,133,012 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472.1

Radius: 13.8

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.53 AU - 1.57 AU

Year: 1309 Days

Day: 12 Hours

Environment

Temp: -183 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 72,739,984 km

• M1: 171,888 km (0.107 R)
• M2: 632,201 km (0.113 R)
• M3: 1,427,762 km (0.091 R)
• M4: 1,920,238 km (0.056 R)
• M5: 2,658,354 km (0.116 R)
• M6: 3,121,958 km (0.087 R)
• M7: 4,032,859 km (0.084 R)
• M8: 5,172,346 km (0.115 R)
• M9: 6,471,005 km (0.059 R)
• M10: 7,442,793 km (0.094 R)
• M11: 7,977,157 km (0.096 R)
• M12: 8,757,160 km (0.081 R)
• M13: 9,587,428 km (0.05 R)
• M14: 10,469,607 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.3

Radius: 8.5

Gravity: 8.97 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 2.06 AU - 2.38 AU

Year: 2243 Days

Day: 6 Hours

Environment

Temp: -201 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,739,984 km

• M1: 105,766 km (0.11 R)
• M2: 766,689 km (0.109 R)
• M3: 1,658,592 km (0.107 R)
• M4: 2,251,598 km (0.095 R)
• M5: 3,457,955 km (0.08 R)
• M6: 3,798,888 km (0.101 R)
• M7: 4,064,425 km (0.114 R)
• M8: 5,346,478 km (0.107 R)
• M9: 5,828,483 km (0.05 R)
• M10: 7,333,288 km (0.075 R)
• M11: 7,990,022 km (0.06 R)
• M12: 8,396,180 km (0.112 R)
• M13: 8,717,816 km (0.103 R)
• M14: 9,386,070 km (0.119 R)
• M15: 11,205,778 km (0.048 R)
• M16: 12,445,346 km (0.083 R)
• M17: 15,576,878 km (0.049 R)
• M18: 16,211,323 km (0.052 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 782

Radius: 11.1

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 2.47 AU - 3.51 AU

Year: 3507 Days

Day: 7.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 72,739,984 km

• M1: 138,079 km (0.101 R)
• M2: 497,862 km (0.038 R)
• M3: 1,164,171 km (0.04 R)
• M4: 1,759,570 km (0.089 R)
• M5: 2,929,575 km (0.117 R)
• M6: 3,502,236 km (0.111 R)
• M7: 4,442,309 km (0.106 R)
• M8: 5,356,501 km (0.089 R)
• M9: 6,128,426 km (0.106 R)
• M10: 7,555,740 km (0.097 R)
• M11: 8,170,737 km (0.06 R)
• M12: 8,781,993 km (0.095 R)
• M13: 9,155,539 km (0.062 R)
• M14: 11,142,349 km (0.052 R)
• M15: 12,538,994 km (0.093 R)
• M16: 13,450,644 km (0.049 R)
• M17: 14,354,514 km (0.077 R)
• M18: 16,339,379 km (0.118 R)
• M19: 18,930,115 km (0.097 R)
• M20: 20,649,144 km (0.101 R)
• M21: 21,919,529 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 69.2

Radius: 10.1

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 2.62 AU - 3.64 AU

Year: 3756 Days

Day: 8.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,739,984 km

• M1: 125,662 km (0.077 R)
• M2: 527,482 km (0.097 R)
• M3: 1,078,301 km (0.088 R)
• M4: 1,428,959 km (0.055 R)
• M5: 1,751,342 km (0.059 R)
• M6: 2,905,191 km (0.095 R)
• M7: 4,034,804 km (0.1 R)
• M8: 4,802,690 km (0.075 R)
• M9: 5,686,365 km (0.076 R)
• M10: 8,339,333 km (0.108 R)
• M11: 9,164,814 km (0.081 R)
• M12: 10,617,110 km (0.113 R)
• M13: 10,978,090 km (0.105 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 487.5

Radius: 4.9

Gravity: 20.3 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 8.09 AU - 12.35 AU

Year: 22160 Days

Day: 20.7 Hours

Environment

Temp: -246 °C

Axial Tilt: 177.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 72,739,984 km

• M1: 60,886 km (0.105 R)
• M2: 213,327 km (0.119 R)
• M3: 477,816 km (0.104 R)
• M4: 2,442,484 km (0.086 R)
• M5: 2,696,651 km (0.096 R)
• M6: 4,960,965 km (0.104 R)
• M7: 5,719,276 km (0.073 R)
• M8: 5,920,485 km (0.089 R)
• M9: 8,507,332 km (0.111 R)
• M10: 9,930,456 km (0.112 R)
• M11: 10,820,115 km (0.081 R)
• M12: 11,190,370 km (0.111 R)
• M13: 11,441,844 km (0.098 R)
• M14: 11,956,161 km (0.048 R)
• M15: 14,836,369 km (0.069 R)
• M16: 28,919,213 km (0.079 R)
• M17: 29,871,852 km (0.104 R)
• M18: 37,133,183 km (0.105 R)
• M19: 44,223,973 km (0.063 R)
• M20: 47,755,530 km (0.102 R)
• M21: 63,562,340 km (0.083 R)
• M22: 70,581,323 km (0.082 R)
• M23: 71,439,566 km (0.117 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 368 - 10,869 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit