🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.6

Radius: 12.9

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.8 AU - 1.04 AU

Year: 620 Days

Day: 11.8 Hours

Environment

Temp: -177 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 53,979,382 km

• M1: 160,519 km (0.087 R)
• M2: 570,865 km (0.064 R)
• M3: 1,222,065 km (0.059 R)
• M4: 1,836,613 km (0.12 R)
• M5: 2,953,660 km (0.098 R)
• M6: 3,457,057 km (0.067 R)
• M7: 4,060,834 km (0.061 R)
• M8: 5,235,177 km (0.074 R)
• M9: 5,697,884 km (0.082 R)
• M10: 6,747,014 km (0.108 R)
• M11: 7,296,187 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 377.3

Radius: 8.3

Gravity: 5.48 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 4 AU - 4.82 AU

Year: 6510 Days

Day: 8.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 53,979,382 km

• M1: 103,372 km (0.055 R)
• M2: 383,419 km (0.118 R)
• M3: 695,032 km (0.107 R)
• M4: 954,135 km (0.103 R)
• M5: 1,617,153 km (0.117 R)
• M6: 2,100,653 km (0.115 R)
• M7: 2,608,388 km (0.077 R)
• M8: 3,079,323 km (0.103 R)
• M9: 3,605,757 km (0.078 R)
• M10: 4,456,820 km (0.072 R)
• M11: 5,022,898 km (0.104 R)
• M12: 5,464,062 km (0.112 R)
• M13: 5,811,728 km (0.074 R)
• M14: 8,790,969 km (0.119 R)
• M15: 10,496,385 km (0.116 R)
• M16: 12,510,421 km (0.076 R)
• M17: 12,962,356 km (0.114 R)
• M18: 13,529,631 km (0.052 R)
• M19: 14,113,362 km (0.043 R)
• M20: 15,559,675 km (0.071 R)
• M21: 16,318,734 km (0.069 R)
• M22: 17,973,735 km (0.119 R)
• M23: 19,203,579 km (0.099 R)
• M24: 21,829,920 km (0.079 R)
• M25: 23,988,617 km (0.079 R)
• M26: 24,922,108 km (0.043 R)
• M27: 26,204,311 km (0.084 R)
• M28: 27,361,750 km (0.054 R)
• M29: 29,073,748 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 759.8

Radius: 9.8

Gravity: 7.91 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 4.11 AU - 4.83 AU

Year: 6643 Days

Day: 10.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 53,979,382 km

• M1: 123,119 km (0.11 R)
• M2: 475,572 km (0.084 R)
• M3: 1,030,729 km (0.053 R)
• M4: 1,450,651 km (0.077 R)
• M5: 2,029,146 km (0.1 R)
• M6: 2,355,418 km (0.08 R)
• M7: 4,031,214 km (0.094 R)
• M8: 4,391,146 km (0.076 R)
• M9: 6,663,987 km (0.086 R)
• M10: 7,280,330 km (0.082 R)
• M11: 7,621,712 km (0.072 R)
• M12: 9,314,711 km (0.032 R)
• M13: 11,753,905 km (0.087 R)
• M14: 12,437,866 km (0.066 R)
• M15: 16,391,588 km (0.094 R)
• M16: 18,406,223 km (0.038 R)
• M17: 19,041,565 km (0.118 R)
• M18: 19,400,749 km (0.084 R)
• M19: 20,959,260 km (0.079 R)
• M20: 21,886,318 km (0.114 R)
• M21: 23,246,163 km (0.093 R)
• M22: 24,576,836 km (0.051 R)
• M23: 25,002,891 km (0.063 R)
• M24: 26,666,868 km (0.096 R)
• M25: 27,116,708 km (0.087 R)
• M26: 30,999,222 km (0.115 R)
• M27: 35,561,658 km (0.099 R)

Planet 4 - Ice Giant

Semi-Major Axis: 5.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 133.2

Radius: 6.7

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 5.36 AU - 5.58 AU

Year: 8993 Days

Day: 17.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 53,979,382 km

• M1: 95,144 km (0.064 R)
• M2: 332,556 km (0.101 R)
• M3: 590,912 km (0.054 R)
• M4: 851,661 km (0.031 R)
• M5: 1,286,542 km (0.062 R)
• M6: 6,170,164 km (0.105 R)
• M7: 8,299,989 km (0.029 R)
• M8: 9,196,828 km (0.097 R)
• M9: 15,477,844 km (0.07 R)
• M10: 17,006,735 km (0.032 R)
• M11: 17,538,106 km (0.072 R)
• M12: 18,883,290 km (0.118 R)
• M13: 22,828,336 km (0.058 R)
• M14: 23,185,875 km (0.115 R)
• M15: 25,794,712 km (0.108 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 808.4

Radius: 6

Gravity: 22.46 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 6.86 AU - 7.04 AU

Year: 12879 Days

Day: 20.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 53,979,382 km

• M1: 74,649 km (0.084 R)
• M2: 423,811 km (0.039 R)
• M3: 695,032 km (0.12 R)
• M4: 1,417,589 km (0.109 R)
• M5: 2,366,638 km (0.07 R)
• M6: 3,439,105 km (0.105 R)
• M7: 5,641,635 km (0.111 R)
• M8: 5,941,878 km (0.049 R)
• M9: 6,292,236 km (0.095 R)
• M10: 9,091,661 km (0.061 R)
• M11: 12,002,536 km (0.059 R)
• M12: 12,249,373 km (0.1 R)
• M13: 12,816,947 km (0.047 R)
• M14: 13,270,528 km (0.11 R)
• M15: 13,936,837 km (0.101 R)
• M16: 17,213,629 km (0.074 R)
• M17: 17,845,380 km (0.055 R)
• M18: 18,988,009 km (0.097 R)
• M19: 22,801,707 km (0.101 R)
• M20: 23,950,619 km (0.089 R)
• M21: 24,341,967 km (0.094 R)
• M22: 26,053,217 km (0.079 R)
• M23: 29,265,831 km (0.046 R)
• M24: 29,825,776 km (0.065 R)
• M25: 32,493,705 km (0.1 R)
• M26: 33,215,066 km (0.08 R)
• M27: 39,103,387 km (0.064 R)
• M28: 44,316,424 km (0.115 R)
• M29: 44,758,486 km (0.036 R)
• M30: 45,501,539 km (0.102 R)
• M31: 47,780,064 km (0.106 R)
• M32: 48,712,358 km (0.109 R)
• M33: 49,498,495 km (0.118 R)
• M34: 52,563,157 km (0.08 R)
• M35: 53,058,326 km (0.107 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 522.8

Radius: 5.5

Gravity: 17.28 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 9.09 AU - 10.79 AU

Year: 22029 Days

Day: 20.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 53,979,382 km

• M1: 69,862 km (0.072 R)
• M2: 652,247 km (0.036 R)
• M3: 1,184,965 km (0.066 R)
• M4: 1,712,297 km (0.106 R)
• M5: 4,917,731 km (0.059 R)
• M6: 10,607,087 km (0.04 R)
• M7: 11,350,738 km (0.108 R)
• M8: 13,220,113 km (0.119 R)
• M9: 13,789,782 km (0.091 R)
• M10: 15,362,953 km (0.114 R)
• M11: 17,812,319 km (0.114 R)
• M12: 20,604,414 km (0.072 R)
• M13: 20,793,954 km (0.109 R)
• M14: 21,369,607 km (0.118 R)
• M15: 27,151,116 km (0.104 R)
• M16: 31,828,892 km (0.079 R)
• M17: 37,578,536 km (0.119 R)
• M18: 68,109,517 km (0.073 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 179.1

Radius: 7.8

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 7.76 AU - 12.93 AU

Year: 23372 Days

Day: 16.4 Hours

Environment

Temp: -237 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 53,979,382 km

• M1: 102,624 km (0.067 R)
• M2: 406,009 km (0.057 R)
• M3: 980,016 km (0.047 R)
• M4: 2,159,296 km (0.107 R)
• M5: 2,427,076 km (0.1 R)
• M6: 3,702,996 km (0.072 R)
• M7: 4,624,669 km (0.045 R)
• M8: 5,206,006 km (0.073 R)
• M9: 5,549,632 km (0.087 R)
• M10: 6,995,196 km (0.079 R)
• M11: 11,107,193 km (0.052 R)
• M12: 11,619,566 km (0.104 R)
• M13: 13,570,172 km (0.119 R)
• M14: 17,340,039 km (0.082 R)
• M15: 18,029,685 km (0.11 R)
• M16: 27,068,688 km (0.111 R)
• M17: 32,261,978 km (0.096 R)
• M18: 32,606,950 km (0.095 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: 268 - 15,151 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit