🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.65

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.5 AU - 0.52 AU

Year: 235 Days

Day: 30.1 Hours

Environment

Temp: -127 °C

Axial Tilt: 5.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485

Radius: 14.7

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.7 AU - 0.76 AU

Year: 403 Days

Day: 9.4 Hours

Environment

Temp: -137 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 58,653,532 km

• M1: 182,809 km (0.067 R)
• M2: 737,966 km (0.114 R)
• M3: 1,624,483 km (0.112 R)
• M4: 2,142,690 km (0.085 R)
• M5: 2,622,151 km (0.116 R)
• M6: 4,596,993 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997

Radius: 14.6

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 1.33 AU - 1.45 AU

Year: 1058 Days

Day: 12.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 58,653,532 km

• M1: 181,612 km (0.117 R)
• M2: 740,061 km (0.11 R)
• M3: 1,279,660 km (0.118 R)
• M4: 1,913,806 km (0.111 R)
• M5: 2,677,802 km (0.038 R)
• M6: 3,978,855 km (0.114 R)
• M7: 4,800,296 km (0.112 R)
• M8: 5,710,749 km (0.089 R)
• M9: 6,219,083 km (0.09 R)
• M10: 7,327,453 km (0.118 R)
• M11: 8,592,154 km (0.044 R)
• M12: 9,262,053 km (0.102 R)
• M13: 11,107,044 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.8

Radius: 11.4

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.31 AU - 1.57 AU

Year: 1116 Days

Day: 10.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,653,532 km

• M1: 141,819 km (0.105 R)
• M2: 505,940 km (0.064 R)
• M3: 1,082,939 km (0.102 R)
• M4: 2,093,323 km (0.077 R)
• M5: 2,709,367 km (0.11 R)
• M6: 3,148,886 km (0.074 R)
• M7: 3,506,424 km (0.106 R)
• M8: 4,683,909 km (0.072 R)
• M9: 5,152,300 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673

Radius: 12.4

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 1.41 AU - 1.85 AU

Year: 1344 Days

Day: 11 Hours

Environment

Temp: -181 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 58,653,532 km

• M1: 154,684 km (0.094 R)
• M2: 903,571 km (0.05 R)
• M3: 1,348,176 km (0.096 R)
• M4: 2,152,863 km (0.083 R)
• M5: 2,613,325 km (0.119 R)
• M6: 3,054,190 km (0.095 R)
• M7: 3,498,197 km (0.115 R)
• M8: 4,667,154 km (0.092 R)
• M9: 5,157,387 km (0.043 R)
• M10: 5,901,337 km (0.082 R)
• M11: 6,739,982 km (0.108 R)
• M12: 7,367,994 km (0.039 R)
• M13: 8,654,386 km (0.08 R)
• M14: 9,185,010 km (0.104 R)
• M15: 11,318,425 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 508.4

Radius: 14.9

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.58 AU - 2.14 AU

Year: 1638 Days

Day: 5.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 58,653,532 km

• M1: 185,352 km (0.066 R)
• M2: 684,261 km (0.056 R)
• M3: 1,431,801 km (0.055 R)
• M4: 2,607,192 km (0.069 R)
• M5: 3,511,062 km (0.102 R)
• M6: 4,247,682 km (0.111 R)
• M7: 4,730,135 km (0.094 R)
• M8: 5,544,845 km (0.078 R)
• M9: 6,054,525 km (0.063 R)
• M10: 7,117,867 km (0.036 R)
• M11: 7,994,510 km (0.059 R)
• M12: 9,803,896 km (0.114 R)
• M13: 10,821,910 km (0.108 R)
• M14: 12,536,002 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 773

Radius: 9.7

Gravity: 8.22 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 3.44 AU - 4.06 AU

Year: 4689 Days

Day: 5.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 58,653,532 km

• M1: 121,623 km (0.078 R)
• M2: 514,916 km (0.105 R)
• M3: 844,779 km (0.079 R)
• M4: 1,238,371 km (0.086 R)
• M5: 2,158,099 km (0.104 R)
• M6: 2,606,892 km (0.08 R)
• M7: 2,909,230 km (0.108 R)
• M8: 3,564,169 km (0.07 R)
• M9: 5,138,836 km (0.096 R)
• M10: 9,305,586 km (0.097 R)
• M11: 9,678,384 km (0.093 R)
• M12: 10,365,936 km (0.079 R)
• M13: 11,364,053 km (0.065 R)
• M14: 12,227,382 km (0.116 R)
• M15: 12,877,684 km (0.092 R)
• M16: 13,815,812 km (0.093 R)
• M17: 14,466,114 km (0.074 R)
• M18: 15,827,904 km (0.098 R)
• M19: 16,903,961 km (0.098 R)
• M20: 18,091,918 km (0.102 R)
• M21: 18,413,553 km (0.084 R)
• M22: 18,804,602 km (0.046 R)
• M23: 19,401,497 km (0.055 R)
• M24: 20,286,070 km (0.084 R)
• M25: 21,268,479 km (0.114 R)
• M26: 22,062,245 km (0.115 R)
• M27: 23,556,130 km (0.111 R)
• M28: 26,744,060 km (0.117 R)
• M29: 28,876,428 km (0.07 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 497.2

Radius: 5.7

Gravity: 15.3 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 6.66 AU - 10.26 AU

Year: 15888 Days

Day: 22.6 Hours

Environment

Temp: -234 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 58,653,532 km

• M1: 70,909 km (0.084 R)
• M2: 418,276 km (0.083 R)
• M3: 1,019,659 km (0.118 R)
• M4: 1,470,248 km (0.072 R)
• M5: 1,850,077 km (0.102 R)
• M6: 2,176,200 km (0.032 R)
• M7: 2,582,658 km (0.066 R)
• M8: 3,736,506 km (0.057 R)
• M9: 4,288,373 km (0.116 R)
• M10: 4,761,251 km (0.09 R)
• M11: 6,114,364 km (0.074 R)
• M12: 7,750,815 km (0.115 R)
• M13: 8,548,022 km (0.06 R)
• M14: 9,295,563 km (0.083 R)
• M15: 12,788,075 km (0.088 R)
• M16: 13,631,358 km (0.071 R)
• M17: 14,580,257 km (0.106 R)
• M18: 15,070,789 km (0.055 R)
• M19: 15,284,414 km (0.094 R)
• M20: 19,993,007 km (0.116 R)
• M21: 20,337,531 km (0.104 R)
• M22: 23,237,187 km (0.082 R)
• M23: 23,427,027 km (0.062 R)
• M24: 26,298,109 km (0.047 R)
• M25: 28,193,364 km (0.074 R)
• M26: 29,064,174 km (0.113 R)
• M27: 31,435,300 km (0.111 R)
• M28: 32,253,451 km (0.086 R)
• M29: 34,669,157 km (0.036 R)
• M30: 37,332,747 km (0.068 R)
• M31: 42,210,685 km (0.082 R)
• M32: 49,352,487 km (0.084 R)
• M33: 50,935,382 km (0.109 R)
• M34: 53,537,637 km (0.119 R)
• M35: 57,605,353 km (0.091 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: 512 - 19,815 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit