🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 911.5

Radius: 9.8

Gravity: 9.49 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.54 AU - 0.56 AU

Year: 277 Days

Day: 8.2 Hours

Environment

Temp: -142 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,498,302 km

• M1: 122,072 km (0.064 R)
• M2: 467,643 km (0.06 R)
• M3: 912,547 km (0.084 R)
• M4: 1,242,111 km (0.094 R)
• M5: 1,652,757 km (0.115 R)
• M6: 1,973,196 km (0.094 R)
• M7: 2,309,941 km (0.105 R)
• M8: 2,629,332 km (0.064 R)
• M9: 3,153,673 km (0.106 R)
• M10: 3,469,324 km (0.039 R)
• M11: 3,951,927 km (0.1 R)
• M12: 4,505,589 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 68.6

Radius: 8.6

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.72 AU - 0.76 AU

Year: 432 Days

Day: 7.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 39,498,302 km

• M1: 107,112 km (0.094 R)
• M2: 474,973 km (0.059 R)
• M3: 752,776 km (0.116 R)
• M4: 1,511,238 km (0.072 R)
• M5: 1,810,733 km (0.078 R)
• M6: 2,531,944 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.2

Radius: 11.3

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 3.02 AU - 3.38 AU

Year: 3883 Days

Day: 12.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 39,498,302 km

• M1: 140,472 km (0.049 R)
• M2: 1,220,719 km (0.103 R)
• M3: 1,632,861 km (0.119 R)
• M4: 2,446,224 km (0.1 R)
• M5: 3,394,376 km (0.045 R)
• M6: 5,750,692 km (0.077 R)
• M7: 6,332,927 km (0.102 R)
• M8: 6,719,338 km (0.098 R)
• M9: 7,767,869 km (0.056 R)
• M10: 8,479,955 km (0.06 R)
• M11: 9,467,301 km (0.101 R)
• M12: 10,095,463 km (0.12 R)
• M13: 10,751,300 km (0.061 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 593.7

Radius: 8.8

Gravity: 7.67 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 4.09 AU - 5.81 AU

Year: 7470 Days

Day: 13.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 39,498,302 km

• M1: 109,506 km (0.09 R)
• M2: 531,072 km (0.11 R)
• M3: 1,545,196 km (0.057 R)
• M4: 5,293,371 km (0.097 R)
• M5: 7,093,333 km (0.071 R)
• M6: 10,035,923 km (0.094 R)
• M7: 11,493,604 km (0.116 R)
• M8: 19,029,896 km (0.098 R)
• M9: 19,388,782 km (0.1 R)
• M10: 19,972,213 km (0.063 R)
• M11: 22,423,674 km (0.075 R)
• M12: 22,985,414 km (0.072 R)
• M13: 23,804,312 km (0.105 R)
• M14: 27,639,852 km (0.086 R)
• M15: 29,512,070 km (0.05 R)
• M16: 36,509,211 km (0.098 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 13.1

Radius: 7.5

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 5.46 AU - 6.36 AU

Year: 9745 Days

Day: 20.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 39,498,302 km

• M1: 93,349 km (0.084 R)
• M2: 597,943 km (0.112 R)
• M3: 835,055 km (0.114 R)
• M4: 1,115,551 km (0.071 R)
• M5: 1,591,721 km (0.115 R)
• M6: 4,938,375 km (0.098 R)
• M7: 5,181,472 km (0.026 R)
• M8: 7,505,624 km (0.08 R)
• M9: 10,883,395 km (0.105 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 75.1

Radius: 5.1

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 5.01 AU - 7.73 AU

Year: 10904 Days

Day: 21 Hours

Environment

Temp: -223 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 39,498,302 km

• M1: 64,028 km (0.085 R)
• M2: 567,574 km (0.055 R)
• M3: 974,780 km (0.116 R)
• M4: 2,500,678 km (0.11 R)
• M5: 3,021,428 km (0.085 R)
• M6: 3,297,885 km (0.102 R)
• M7: 3,491,614 km (0.115 R)
• M8: 4,030,915 km (0.093 R)
• M9: 4,458,765 km (0.069 R)
• M10: 5,092,760 km (0.072 R)
• M11: 5,924,973 km (0.033 R)
• M12: 6,875,369 km (0.051 R)
• M13: 7,786,868 km (0.101 R)
• M14: 8,557,447 km (0.109 R)
• M15: 12,060,580 km (0.088 R)
• M16: 13,089,664 km (0.115 R)
• M17: 13,576,306 km (0.099 R)
• M18: 14,431,108 km (0.091 R)
• M19: 15,214,552 km (0.116 R)
• M20: 16,582,924 km (0.096 R)
• M21: 19,311,290 km (0.111 R)
• M22: 23,300,317 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 213.3

Radius: 5.8

Gravity: 6.34 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 7.04 AU - 7.58 AU

Year: 13405 Days

Day: 15.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 39,498,302 km

• M1: 73,752 km (0.086 R)
• M2: 294,558 km (0.055 R)
• M3: 2,287,202 km (0.028 R)
• M4: 2,993,154 km (0.069 R)
• M5: 3,934,723 km (0.047 R)
• M6: 11,562,270 km (0.073 R)
• M7: 14,242,914 km (0.082 R)
• M8: 15,536,038 km (0.117 R)
• M9: 16,048,560 km (0.12 R)
• M10: 19,217,043 km (0.077 R)
• M11: 25,061,982 km (0.052 R)
• M12: 25,944,908 km (0.07 R)
• M13: 28,432,272 km (0.083 R)
• M14: 30,672,799 km (0.066 R)
• M15: 36,502,329 km (0.107 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: 220 - 19,288 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit