🌌 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: 239.6

Radius: 10.7

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.56 AU - 0.66 AU

Year: 323 Days

Day: 12.6 Hours

Environment

Temp: -141 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 62,476,859 km

• M1: 133,292 km (0.065 R)
• M2: 468,541 km (0.083 R)
• M3: 940,971 km (0.095 R)
• M4: 1,825,543 km (0.078 R)
• M5: 2,242,322 km (0.094 R)
• M6: 2,582,209 km (0.039 R)
• M7: 2,947,676 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.4

Radius: 13.2

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.38 AU - 2.2 AU

Year: 1624 Days

Day: 14.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,476,859 km

• M1: 164,109 km (0.065 R)
• M2: 1,068,727 km (0.036 R)
• M3: 1,528,890 km (0.106 R)
• M4: 2,595,224 km (0.073 R)
• M5: 3,007,665 km (0.069 R)
• M6: 3,592,892 km (0.078 R)
• M7: 4,957,374 km (0.091 R)
• M8: 7,188,178 km (0.102 R)
• M9: 8,870,555 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832.9

Radius: 12.2

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.41 AU - 2.21 AU

Year: 1652 Days

Day: 5.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 62,476,859 km

• M1: 152,141 km (0.106 R)
• M2: 981,811 km (0.117 R)
• M3: 1,364,183 km (0.11 R)
• M4: 1,755,232 km (0.097 R)
• M5: 2,308,295 km (0.118 R)
• M6: 3,127,044 km (0.081 R)
• M7: 4,496,014 km (0.103 R)
• M8: 4,946,454 km (0.069 R)
• M9: 5,702,222 km (0.066 R)
• M10: 6,507,956 km (0.055 R)
• M11: 7,277,338 km (0.039 R)
• M12: 7,959,205 km (0.105 R)
• M13: 9,616,002 km (0.088 R)
• M14: 10,158,593 km (0.077 R)
• M15: 11,987,277 km (0.085 R)
• M16: 13,308,526 km (0.11 R)
• M17: 13,897,642 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.8

Radius: 12.3

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.66 AU - 2.64 AU

Year: 2138 Days

Day: 5.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 62,476,859 km

• M1: 153,936 km (0.114 R)
• M2: 783,594 km (0.099 R)
• M3: 1,260,512 km (0.09 R)
• M4: 2,363,347 km (0.046 R)
• M5: 3,168,782 km (0.102 R)
• M6: 3,725,286 km (0.114 R)
• M7: 4,720,411 km (0.103 R)
• M8: 5,577,308 km (0.08 R)
• M9: 6,274,284 km (0.094 R)
• M10: 8,835,400 km (0.078 R)
• M11: 10,103,391 km (0.111 R)
• M12: 11,881,661 km (0.113 R)
• M13: 12,505,933 km (0.063 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.5

Radius: 14.5

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 2.32 AU - 3.06 AU

Year: 2992 Days

Day: 7.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 62,476,859 km

• M1: 180,265 km (0.101 R)
• M2: 656,435 km (0.103 R)
• M3: 1,110,016 km (0.114 R)
• M4: 1,655,151 km (0.03 R)
• M5: 2,328,790 km (0.096 R)
• M6: 3,594,986 km (0.057 R)
• M7: 4,351,952 km (0.091 R)
• M8: 4,928,502 km (0.029 R)
• M9: 5,720,922 km (0.081 R)
• M10: 7,793,600 km (0.084 R)
• M11: 8,871,004 km (0.097 R)
• M12: 9,631,560 km (0.101 R)
• M13: 11,359,116 km (0.115 R)
• M14: 12,057,588 km (0.099 R)
• M15: 13,370,160 km (0.098 R)
• M16: 13,929,806 km (0.034 R)
• M17: 14,505,010 km (0.118 R)
• M18: 15,703,288 km (0.112 R)
• M19: 16,181,403 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174.2

Radius: 14.1

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 2.83 AU - 4.07 AU

Year: 4346 Days

Day: 10.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,476,859 km

• M1: 200,910 km (0.033 R)
• M2: 829,670 km (0.1 R)
• M3: 1,435,092 km (0.037 R)
• M4: 1,920,837 km (0.115 R)
• M5: 3,420,555 km (0.061 R)
• M6: 5,386,571 km (0.041 R)
• M7: 5,866,630 km (0.089 R)
• M8: 6,667,427 km (0.092 R)
• M9: 7,307,856 km (0.092 R)
• M10: 7,928,238 km (0.071 R)
• M11: 9,790,881 km (0.105 R)
• M12: 11,300,773 km (0.059 R)
• M13: 12,172,330 km (0.081 R)
• M14: 15,199,293 km (0.099 R)
• M15: 15,918,410 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.7

Radius: 8.3

Gravity: 13.19 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 4.26 AU - 4.34 AU

Year: 6048 Days

Day: 6.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 62,476,859 km

• M1: 104,419 km (0.116 R)
• M2: 426,803 km (0.095 R)
• M3: 704,307 km (0.118 R)
• M4: 1,233,135 km (0.082 R)
• M5: 1,826,590 km (0.081 R)
• M6: 2,673,164 km (0.081 R)
• M7: 3,435,515 km (0.114 R)
• M8: 3,759,394 km (0.089 R)
• M9: 5,263,751 km (0.036 R)
• M10: 6,735,046 km (0.093 R)
• M11: 7,394,174 km (0.115 R)
• M12: 7,661,805 km (0.113 R)
• M13: 9,098,692 km (0.104 R)
• M14: 9,675,541 km (0.104 R)
• M15: 13,603,982 km (0.115 R)
• M16: 14,064,743 km (0.076 R)
• M17: 19,991,362 km (0.053 R)
• M18: 22,525,699 km (0.086 R)
• M19: 33,335,642 km (0.119 R)
• M20: 34,491,135 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 876.1

Radius: 4.1

Gravity: 52.12 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 5.49 AU - 8.95 AU

Year: 13158 Days

Day: 17.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 62,476,859 km

• M1: 51,162 km (0.109 R)
• M2: 341,682 km (0.082 R)
• M3: 620,831 km (0.068 R)
• M4: 1,160,879 km (0.046 R)
• M5: 1,719,628 km (0.089 R)
• M6: 2,253,842 km (0.097 R)
• M7: 2,704,580 km (0.12 R)
• M8: 3,061,670 km (0.092 R)
• M9: 3,290,555 km (0.075 R)
• M10: 3,869,199 km (0.058 R)
• M11: 4,448,592 km (0.032 R)
• M12: 5,854,064 km (0.097 R)
• M13: 6,206,816 km (0.098 R)
• M14: 7,440,400 km (0.117 R)
• M15: 8,090,702 km (0.064 R)
• M16: 8,677,574 km (0.091 R)
• M17: 11,980,695 km (0.088 R)
• M18: 14,642,789 km (0.119 R)
• M19: 15,073,332 km (0.105 R)
• M20: 18,244,059 km (0.113 R)
• M21: 21,463,106 km (0.074 R)
• M22: 23,061,260 km (0.116 R)
• M23: 24,939,461 km (0.086 R)
• M24: 27,131,219 km (0.116 R)
• M25: 32,859,471 km (0.108 R)
• M26: 35,745,364 km (0.098 R)
• M27: 36,003,869 km (0.111 R)
• M28: 39,343,193 km (0.079 R)
• M29: 41,871,397 km (0.066 R)
• M30: 45,559,433 km (0.088 R)
• M31: 47,248,543 km (0.051 R)
• M32: 47,404,124 km (0.097 R)
• M33: 51,900,887 km (0.087 R)
• M34: 55,454,135 km (0.074 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 250 - 15,824 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit