🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 78.2

Radius: 11.8

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.65 AU - 0.77 AU

Year: 399 Days

Day: 7.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 33,041,683 km

• M1: 146,756 km (0.064 R)
• M2: 627,413 km (0.098 R)
• M3: 1,129,464 km (0.081 R)
• M4: 2,069,238 km (0.061 R)
• M5: 2,593,578 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.6

Radius: 10.2

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.35 AU - 2.23 AU

Year: 1597 Days

Day: 13.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 33,041,683 km

• M1: 126,859 km (0.074 R)
• M2: 498,161 km (0.114 R)
• M3: 1,009,038 km (0.033 R)
• M4: 1,561,054 km (0.1 R)
• M5: 2,559,021 km (0.102 R)
• M6: 2,956,353 km (0.091 R)
• M7: 3,284,571 km (0.06 R)
• M8: 4,588,466 km (0.051 R)
• M9: 4,994,325 km (0.09 R)
• M10: 5,328,676 km (0.114 R)
• M11: 5,939,634 km (0.083 R)
• M12: 6,422,685 km (0.085 R)
• M13: 6,909,028 km (0.097 R)
• M14: 7,806,914 km (0.073 R)
• M15: 9,241,857 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 197.8

Radius: 13.4

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.8 AU - 2.7 AU

Year: 2251 Days

Day: 13.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 33,041,683 km

• M1: 167,998 km (0.067 R)
• M2: 1,144,274 km (0.105 R)
• M3: 1,576,762 km (0.1 R)
• M4: 2,037,224 km (0.044 R)
• M5: 2,539,873 km (0.11 R)
• M6: 3,354,732 km (0.076 R)
• M7: 3,897,174 km (0.084 R)
• M8: 5,735,283 km (0.081 R)
• M9: 7,697,708 km (0.048 R)
• M10: 10,326,591 km (0.1 R)
• M11: 11,379,162 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742

Radius: 10.6

Gravity: 6.6 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 3.24 AU - 4.18 AU

Year: 4765 Days

Day: 9.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 163.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 33,041,683 km

• M1: 131,945 km (0.109 R)
• M2: 550,371 km (0.046 R)
• M3: 1,296,714 km (0.105 R)
• M4: 2,147,777 km (0.102 R)
• M5: 2,610,034 km (0.045 R)
• M6: 3,869,499 km (0.093 R)
• M7: 4,736,269 km (0.053 R)
• M8: 5,161,127 km (0.08 R)
• M9: 5,727,803 km (0.069 R)
• M10: 6,148,772 km (0.115 R)
• M11: 6,526,058 km (0.093 R)
• M12: 9,575,311 km (0.085 R)
• M13: 10,698,641 km (0.085 R)
• M14: 11,907,841 km (0.092 R)
• M15: 13,102,829 km (0.089 R)
• M16: 15,099,362 km (0.081 R)
• M17: 16,259,045 km (0.067 R)
• M18: 16,618,379 km (0.043 R)
• M19: 19,350,335 km (0.107 R)
• M20: 21,140,274 km (0.091 R)
• M21: 23,037,922 km (0.072 R)
• M22: 25,365,665 km (0.078 R)
• M23: 27,931,269 km (0.118 R)
• M24: 29,586,719 km (0.077 R)
• M25: 30,032,969 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 524.5

Radius: 12.2

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 3.83 AU - 4.13 AU

Year: 5295 Days

Day: 8.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,041,683 km

• M1: 151,991 km (0.112 R)
• M2: 541,395 km (0.093 R)
• M3: 1,018,761 km (0.04 R)
• M4: 1,884,634 km (0.034 R)
• M5: 2,343,301 km (0.075 R)
• M6: 3,368,495 km (0.057 R)
• M7: 5,005,844 km (0.032 R)
• M8: 5,466,605 km (0.068 R)
• M9: 6,663,688 km (0.081 R)
• M10: 8,247,929 km (0.087 R)
• M11: 10,587,041 km (0.113 R)
• M12: 17,133,145 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396

Radius: 8.9

Gravity: 5 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 3.9 AU - 5.94 AU

Year: 7277 Days

Day: 6.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 33,041,683 km

• M1: 110,702 km (0.115 R)
• M2: 417,378 km (0.118 R)
• M3: 802,443 km (0.057 R)
• M4: 1,226,104 km (0.038 R)
• M5: 1,637,947 km (0.089 R)
• M6: 2,020,469 km (0.105 R)
• M7: 2,445,177 km (0.08 R)
• M8: 2,871,980 km (0.102 R)
• M9: 3,368,645 km (0.093 R)
• M10: 4,585,624 km (0.113 R)
• M11: 5,152,151 km (0.113 R)
• M12: 5,917,493 km (0.111 R)
• M13: 6,457,691 km (0.077 R)
• M14: 6,995,645 km (0.093 R)
• M15: 7,563,220 km (0.104 R)
• M16: 9,837,406 km (0.097 R)
• M17: 10,641,345 km (0.118 R)
• M18: 11,153,718 km (0.082 R)
• M19: 11,978,002 km (0.111 R)
• M20: 12,278,395 km (0.089 R)
• M21: 19,952,616 km (0.105 R)
• M22: 23,738,041 km (0.03 R)
• M23: 25,099,381 km (0.095 R)
• M24: 26,511,884 km (0.102 R)
• M25: 27,194,649 km (0.064 R)
• M26: 30,598,748 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 97.6

Radius: 6.4

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 6.21 AU - 9.01 AU

Year: 13999 Days

Day: 23.4 Hours

Environment

Temp: -240 °C

Axial Tilt: 146.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,041,683 km

• M1: 79,586 km (0.071 R)
• M2: 283,937 km (0.102 R)
• M3: 5,989,600 km (0.092 R)
• M4: 7,930,931 km (0.077 R)
• M5: 8,781,096 km (0.033 R)
• M6: 9,186,955 km (0.042 R)
• M7: 10,936,801 km (0.078 R)
• M8: 11,359,116 km (0.092 R)
• M9: 12,897,580 km (0.105 R)
• M10: 13,743,556 km (0.061 R)
• M11: 14,569,785 km (0.07 R)
• M12: 14,795,678 km (0.101 R)
• M13: 18,207,706 km (0.097 R)
• M14: 19,068,642 km (0.11 R)
• M15: 21,740,759 km (0.099 R)
• M16: 22,483,363 km (0.086 R)
• M17: 30,678,185 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 67.4

Radius: 3.6

Gravity: 5.2 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 7.92 AU - 10.24 AU

Year: 18246 Days

Day: 22.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 33,041,683 km

• M1: 45,777 km (0.087 R)
• M2: 441,015 km (0.102 R)
• M3: 585,526 km (0.088 R)
• M4: 1,558,810 km (0.057 R)
• M5: 2,352,427 km (0.104 R)
• M6: 2,559,919 km (0.075 R)
• M7: 3,173,569 km (0.026 R)
• M8: 4,194,126 km (0.094 R)
• M9: 5,808,586 km (0.109 R)
• M10: 6,220,130 km (0.061 R)
• M11: 7,682,748 km (0.1 R)
• M12: 7,832,945 km (0.091 R)
• M13: 16,624,363 km (0.03 R)
• M14: 17,386,564 km (0.089 R)
• M15: 18,505,705 km (0.103 R)
• M16: 20,886,556 km (0.079 R)
• M17: 27,276,928 km (0.092 R)
• M18: 32,158,755 km (0.102 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 424 - 12,557 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit