🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.1

Radius: 12.8

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.51 AU - 0.71 AU

Year: 329 Days

Day: 9.1 Hours

Environment

Temp: -152 °C

Axial Tilt: 146.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,188,622 km

• M1: 159,172 km (0.091 R)
• M2: 631,303 km (0.116 R)
• M3: 1,172,249 km (0.116 R)
• M4: 1,762,413 km (0.099 R)
• M5: 2,280,320 km (0.096 R)
• M6: 2,870,933 km (0.092 R)
• M7: 3,421,752 km (0.111 R)
• M8: 4,078,487 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154.5

Radius: 12.2

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.66 AU - 0.88 AU

Year: 466 Days

Day: 11.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 55,188,622 km

• M1: 151,991 km (0.063 R)
• M2: 691,890 km (0.102 R)
• M3: 1,157,439 km (0.083 R)
• M4: 1,732,044 km (0.107 R)
• M5: 2,310,240 km (0.111 R)
• M6: 2,762,025 km (0.094 R)
• M7: 3,525,423 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504.3

Radius: 11.3

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.88 AU - 0.92 AU

Year: 589 Days

Day: 10.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,188,622 km

• M1: 140,472 km (0.059 R)
• M2: 732,880 km (0.117 R)
• M3: 1,484,759 km (0.055 R)
• M4: 2,729,114 km (0.104 R)
• M5: 3,449,278 km (0.09 R)
• M6: 5,086,477 km (0.115 R)
• M7: 5,553,522 km (0.106 R)
• M8: 6,048,990 km (0.102 R)

Asteroid Belt

Center: 2.55 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 4.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.4

Radius: 14.8

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 4.16 AU - 4.24 AU

Year: 5941 Days

Day: 14.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 55,188,622 km

• M1: 184,155 km (0.106 R)
• M2: 697,874 km (0.1 R)
• M3: 1,187,657 km (0.117 R)
• M4: 1,682,228 km (0.096 R)
• M5: 2,178,145 km (0.08 R)
• M6: 2,821,715 km (0.114 R)
• M7: 3,456,608 km (0.07 R)
• M8: 3,994,413 km (0.052 R)
• M9: 4,846,522 km (0.069 R)
• M10: 6,853,078 km (0.078 R)
• M11: 8,491,774 km (0.101 R)
• M12: 9,516,818 km (0.086 R)
• M13: 10,178,639 km (0.078 R)
• M14: 11,594,583 km (0.11 R)
• M15: 13,959,725 km (0.088 R)
• M16: 14,866,588 km (0.118 R)
• M17: 17,650,454 km (0.095 R)
• M18: 21,351,057 km (0.086 R)
• M19: 22,014,523 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 353.4

Radius: 8.4

Gravity: 5.01 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 3.61 AU - 5.51 AU

Year: 6721 Days

Day: 6.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 55,188,622 km

• M1: 112,498 km (0.097 R)
• M2: 756,666 km (0.03 R)
• M3: 1,076,656 km (0.05 R)
• M4: 1,441,824 km (0.068 R)
• M5: 2,175,153 km (0.093 R)
• M6: 3,314,790 km (0.112 R)
• M7: 5,576,709 km (0.058 R)
• M8: 5,899,093 km (0.104 R)
• M9: 6,549,245 km (0.087 R)
• M10: 7,630,688 km (0.083 R)
• M11: 11,492,258 km (0.106 R)
• M12: 12,906,108 km (0.1 R)
• M13: 13,523,797 km (0.108 R)
• M14: 13,786,790 km (0.073 R)
• M15: 14,377,702 km (0.112 R)
• M16: 15,097,716 km (0.098 R)
• M17: 19,327,297 km (0.091 R)
• M18: 20,617,429 km (0.079 R)
• M19: 25,545,482 km (0.096 R)
• M20: 28,972,470 km (0.093 R)
• M21: 29,322,379 km (0.102 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 902.2

Radius: 6.2

Gravity: 23.47 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 6.02 AU - 8.14 AU

Year: 13004 Days

Day: 20.9 Hours

Environment

Temp: -240 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 55,188,622 km

• M1: 130,749 km (0.049 R)
• M2: 412,142 km (0.098 R)
• M3: 631,602 km (0.11 R)
• M4: 930,648 km (0.113 R)
• M5: 1,748,350 km (0.061 R)
• M6: 2,087,489 km (0.101 R)
• M7: 2,556,029 km (0.03 R)
• M8: 3,218,299 km (0.074 R)
• M9: 3,453,766 km (0.062 R)
• M10: 4,018,648 km (0.109 R)
• M11: 5,366,524 km (0.118 R)
• M12: 5,774,179 km (0.112 R)
• M13: 6,991,157 km (0.043 R)
• M14: 7,477,500 km (0.113 R)
• M15: 9,758,419 km (0.093 R)
• M16: 10,880,852 km (0.059 R)
• M17: 11,293,293 km (0.116 R)
• M18: 12,465,542 km (0.053 R)
• M19: 12,982,552 km (0.119 R)
• M20: 13,784,696 km (0.103 R)
• M21: 14,198,035 km (0.084 R)
• M22: 15,859,020 km (0.108 R)
• M23: 17,167,104 km (0.104 R)
• M24: 19,134,166 km (0.074 R)
• M25: 22,077,205 km (0.103 R)
• M26: 24,699,057 km (0.064 R)
• M27: 27,738,587 km (0.108 R)
• M28: 27,956,850 km (0.079 R)
• M29: 30,667,713 km (0.059 R)
• M30: 45,653,231 km (0.084 R)
• M31: 48,442,782 km (0.064 R)
• M32: 51,673,349 km (0.082 R)
• M33: 52,004,109 km (0.098 R)
• M34: 53,509,962 km (0.077 R)
• M35: 57,845,009 km (0.028 R)
• M36: 58,380,419 km (0.036 R)
• M37: 59,461,264 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 390.8

Radius: 6.1

Gravity: 10.5 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 8.13 AU - 8.37 AU

Year: 16357 Days

Day: 15.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 55,188,622 km

• M1: 75,846 km (0.072 R)
• M2: 447,896 km (0.111 R)
• M3: 1,055,712 km (0.086 R)
• M4: 1,670,559 km (0.05 R)
• M5: 2,733,901 km (0.093 R)
• M6: 4,217,613 km (0.033 R)
• M7: 6,057,367 km (0.104 R)
• M8: 6,923,689 km (0.101 R)
• M9: 7,516,395 km (0.11 R)
• M10: 8,705,998 km (0.063 R)
• M11: 9,396,093 km (0.101 R)
• M12: 11,743,732 km (0.096 R)
• M13: 13,020,999 km (0.101 R)
• M14: 13,466,651 km (0.048 R)
• M15: 15,002,572 km (0.083 R)
• M16: 15,351,285 km (0.096 R)
• M17: 15,848,698 km (0.086 R)
• M18: 17,481,708 km (0.03 R)
• M19: 20,052,398 km (0.096 R)
• M20: 20,561,031 km (0.055 R)
• M21: 21,427,651 km (0.079 R)
• M22: 22,499,520 km (0.116 R)
• M23: 26,431,401 km (0.04 R)
• M24: 27,042,807 km (0.056 R)
• M25: 29,910,748 km (0.081 R)
• M26: 31,474,794 km (0.092 R)
• M27: 34,522,850 km (0.1 R)
• M28: 35,498,827 km (0.098 R)
• M29: 36,493,054 km (0.116 R)
• M30: 40,387,087 km (0.108 R)
• M31: 41,607,207 km (0.104 R)
• M32: 48,078,212 km (0.116 R)
• M33: 49,602,016 km (0.06 R)
• M34: 52,265,756 km (0.066 R)
• M35: 53,389,834 km (0.103 R)
• M36: 54,039,388 km (0.07 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 200 - 13,528 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit