🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.2

Radius: 13.2

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.5 AU - 0.58 AU

Year: 274 Days

Day: 10.5 Hours

Environment

Temp: -136 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 30,350,908 km

• M1: 164,258 km (0.104 R)
• M2: 651,798 km (0.107 R)
• M3: 1,336,208 km (0.061 R)
• M4: 1,946,268 km (0.06 R)
• M5: 2,738,090 km (0.074 R)
• M6: 3,184,041 km (0.053 R)
• M7: 3,600,222 km (0.1 R)
• M8: 4,224,494 km (0.068 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 985.8

Radius: 9.6

Gravity: 10.7 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.82 AU - 1.02 AU

Year: 609 Days

Day: 5 Hours

Environment

Temp: -176 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 30,350,908 km

• M1: 155,133 km (0.079 R)
• M2: 511,176 km (0.063 R)
• M3: 939,026 km (0.107 R)
• M4: 1,369,868 km (0.041 R)
• M5: 2,243,968 km (0.101 R)
• M6: 2,659,252 km (0.102 R)
• M7: 3,062,717 km (0.112 R)
• M8: 3,438,806 km (0.101 R)
• M9: 3,933,826 km (0.116 R)
• M10: 4,508,281 km (0.04 R)
• M11: 5,137,490 km (0.096 R)
• M12: 5,632,958 km (0.1 R)
• M13: 5,980,624 km (0.09 R)
• M14: 7,471,666 km (0.118 R)
• M15: 7,797,340 km (0.077 R)
• M16: 8,108,205 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 101

Radius: 8.7

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.79 AU - 1.29 AU

Year: 732 Days

Day: 11.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 30,350,908 km

• M1: 115,340 km (0.092 R)
• M2: 777,610 km (0.075 R)
• M3: 1,099,245 km (0.11 R)
• M4: 1,373,907 km (0.073 R)
• M5: 1,655,600 km (0.105 R)
• M6: 2,112,920 km (0.07 R)
• M7: 2,544,660 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.2

Radius: 13.6

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.11 AU - 1.25 AU

Year: 885 Days

Day: 7.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,350,908 km

• M1: 170,392 km (0.119 R)
• M2: 622,477 km (0.091 R)
• M3: 1,081,742 km (0.092 R)
• M4: 1,549,834 km (0.102 R)
• M5: 2,012,091 km (0.107 R)
• M6: 2,557,076 km (0.114 R)
• M7: 2,997,642 km (0.057 R)
• M8: 3,424,894 km (0.076 R)
• M9: 4,253,815 km (0.105 R)
• M10: 5,689,057 km (0.07 R)
• M11: 6,233,145 km (0.036 R)
• M12: 7,231,711 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693.8

Radius: 8.2

Gravity: 10.32 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.46 AU - 1.5 AU

Year: 1243 Days

Day: 14.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 30,350,908 km

• M1: 102,026 km (0.044 R)
• M2: 469,887 km (0.112 R)
• M3: 759,359 km (0.08 R)
• M4: 1,114,504 km (0.069 R)
• M5: 1,375,852 km (0.071 R)
• M6: 1,632,711 km (0.1 R)
• M7: 2,223,024 km (0.108 R)
• M8: 2,518,331 km (0.111 R)
• M9: 2,893,821 km (0.076 R)
• M10: 3,629,095 km (0.057 R)
• M11: 4,669,099 km (0.1 R)
• M12: 6,465,620 km (0.102 R)
• M13: 6,727,865 km (0.106 R)
• M14: 7,121,756 km (0.093 R)
• M15: 7,583,415 km (0.104 R)
• M16: 8,257,354 km (0.039 R)
• M17: 8,594,846 km (0.108 R)
• M18: 9,147,910 km (0.073 R)
• M19: 9,448,452 km (0.092 R)
• M20: 10,585,246 km (0.052 R)
• M21: 11,220,738 km (0.039 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.9

Radius: 13.3

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.76 AU - 2.78 AU

Year: 2361 Days

Day: 13.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 30,350,908 km

• M1: 165,455 km (0.055 R)
• M2: 624,272 km (0.096 R)
• M3: 1,087,277 km (0.047 R)
• M4: 2,023,910 km (0.058 R)
• M5: 2,835,927 km (0.088 R)
• M6: 3,276,642 km (0.045 R)
• M7: 4,024,781 km (0.057 R)
• M8: 4,605,819 km (0.117 R)
• M9: 5,546,491 km (0.078 R)
• M10: 6,746,714 km (0.088 R)
• M11: 9,484,355 km (0.112 R)
• M12: 10,045,497 km (0.107 R)
• M13: 11,743,433 km (0.047 R)
• M14: 12,765,635 km (0.119 R)
• M15: 13,757,619 km (0.069 R)
• M16: 14,295,273 km (0.045 R)
• M17: 15,222,631 km (0.106 R)
• M18: 16,288,515 km (0.1 R)
• M19: 16,839,784 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 133.5

Radius: 14.8

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 4.83 AU - 6.19 AU

Year: 8928 Days

Day: 8.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 30,350,908 km

• M1: 184,155 km (0.101 R)
• M2: 1,128,716 km (0.04 R)
• M3: 1,725,013 km (0.068 R)
• M4: 3,268,115 km (0.101 R)
• M5: 4,872,103 km (0.116 R)
• M6: 5,654,800 km (0.074 R)
• M7: 6,796,530 km (0.1 R)
• M8: 8,228,032 km (0.112 R)
• M9: 9,148,209 km (0.106 R)
• M10: 10,847,641 km (0.039 R)
• M11: 12,654,035 km (0.118 R)
• M12: 13,931,302 km (0.117 R)
• M13: 15,346,946 km (0.088 R)
• M14: 17,440,120 km (0.119 R)
• M15: 18,833,624 km (0.107 R)
• M16: 20,961,354 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 359.9

Radius: 7.3

Gravity: 6.75 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 6.7 AU - 10.32 AU

Year: 17136 Days

Day: 19.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 30,350,908 km

• M1: 91,105 km (0.095 R)
• M2: 352,901 km (0.059 R)
• M3: 817,552 km (0.106 R)
• M4: 2,283,312 km (0.117 R)
• M5: 2,585,650 km (0.104 R)
• M6: 2,891,727 km (0.093 R)
• M7: 4,579,789 km (0.043 R)
• M8: 5,129,561 km (0.096 R)
• M9: 10,063,898 km (0.085 R)
• M10: 15,558,328 km (0.117 R)
• M11: 17,248,335 km (0.096 R)
• M12: 21,867,918 km (0.112 R)
• M13: 24,556,191 km (0.105 R)
• M14: 25,138,725 km (0.119 R)
• M15: 25,433,433 km (0.066 R)
• M16: 30,245,398 km (0.102 R)
• M17: 38,030,471 km (0.095 R)
• M18: 39,999,329 km (0.115 R)
• M19: 41,349,001 km (0.116 R)
• M20: 46,311,910 km (0.104 R)
• M21: 46,755,019 km (0.054 R)
• M22: 49,626,700 km (0.119 R)
• M23: 51,341,840 km (0.049 R)
• M24: 52,613,721 km (0.046 R)
• M25: 53,581,320 km (0.087 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 51.6

Radius: 6.8

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 7.2 AU - 10.62 AU

Year: 18358 Days

Day: 19.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 30,350,908 km

• M1: 91,105 km (0.094 R)
• M2: 700,417 km (0.029 R)
• M3: 1,484,908 km (0.066 R)
• M4: 10,644,936 km (0.091 R)
• M5: 11,523,225 km (0.116 R)
• M6: 16,650,692 km (0.077 R)
• M7: 26,528,938 km (0.11 R)
• M8: 27,198,389 km (0.104 R)
• M9: 28,658,314 km (0.069 R)
• M10: 29,185,797 km (0.116 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 177 - 12,229 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit