🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212.6

Radius: 9.7

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.66 AU - 1.06 AU

Year: 541 Days

Day: 14.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,233,791 km

• M1: 122,072 km (0.11 R)
• M2: 446,101 km (0.118 R)
• M3: 844,480 km (0.082 R)
• M4: 1,468,303 km (0.094 R)
• M5: 2,113,220 km (0.075 R)
• M6: 2,715,052 km (0.093 R)
• M7: 3,350,992 km (0.062 R)
• M8: 4,587,718 km (0.026 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 643.5

Radius: 8

Gravity: 10.05 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.93 AU - 1.21 AU

Year: 751 Days

Day: 13.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 44,233,791 km

• M1: 99,782 km (0.075 R)
• M2: 354,996 km (0.116 R)
• M3: 685,158 km (0.034 R)
• M4: 1,162,525 km (0.099 R)
• M5: 1,636,302 km (0.027 R)
• M6: 1,900,342 km (0.084 R)
• M7: 2,293,934 km (0.108 R)
• M8: 2,906,537 km (0.113 R)
• M9: 3,457,955 km (0.056 R)
• M10: 4,294,207 km (0.038 R)
• M11: 4,734,623 km (0.083 R)
• M12: 5,222,761 km (0.048 R)
• M13: 5,840,600 km (0.118 R)
• M14: 6,527,254 km (0.079 R)
• M15: 6,782,019 km (0.107 R)
• M16: 8,108,953 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847.7

Radius: 12.5

Gravity: 5.43 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.32 AU - 1.5 AU

Year: 1136 Days

Day: 8.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,233,791 km

• M1: 155,432 km (0.111 R)
• M2: 571,913 km (0.113 R)
• M3: 976,425 km (0.093 R)
• M4: 1,662,481 km (0.098 R)
• M5: 2,639,505 km (0.073 R)
• M6: 3,049,852 km (0.096 R)
• M7: 3,738,301 km (0.112 R)
• M8: 4,189,040 km (0.071 R)
• M9: 7,445,336 km (0.081 R)
• M10: 8,081,277 km (0.086 R)
• M11: 9,073,260 km (0.116 R)
• M12: 9,768,292 km (0.11 R)
• M13: 11,609,244 km (0.062 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.3

Radius: 13.2

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 2.2 AU - 2.72 AU

Year: 2617 Days

Day: 9.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 44,233,791 km

• M1: 164,408 km (0.109 R)
• M2: 601,383 km (0.112 R)
• M3: 1,084,884 km (0.061 R)
• M4: 1,812,528 km (0.094 R)
• M5: 2,236,039 km (0.092 R)
• M6: 2,817,526 km (0.111 R)
• M7: 3,323,018 km (0.094 R)
• M8: 3,986,035 km (0.082 R)
• M9: 4,433,632 km (0.112 R)
• M10: 5,191,944 km (0.034 R)
• M11: 5,957,286 km (0.083 R)
• M12: 7,590,446 km (0.079 R)
• M13: 9,223,307 km (0.103 R)
• M14: 10,844,499 km (0.063 R)
• M15: 11,438,552 km (0.107 R)
• M16: 12,054,148 km (0.109 R)
• M17: 12,562,332 km (0.102 R)
• M18: 13,804,293 km (0.115 R)
• M19: 15,175,208 km (0.059 R)
• M20: 17,106,666 km (0.082 R)
• M21: 17,533,319 km (0.095 R)
• M22: 18,856,064 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 583.6

Radius: 14.2

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 2.57 AU - 3.37 AU

Year: 3472 Days

Day: 5.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 44,233,791 km

• M1: 176,825 km (0.106 R)
• M2: 872,604 km (0.046 R)
• M3: 1,984,416 km (0.052 R)
• M4: 2,943,488 km (0.11 R)
• M5: 3,586,609 km (0.034 R)
• M6: 4,454,426 km (0.11 R)
• M7: 5,771,336 km (0.077 R)
• M8: 7,086,302 km (0.119 R)
• M9: 9,273,722 km (0.038 R)
• M10: 13,094,601 km (0.031 R)
• M11: 17,858,395 km (0.11 R)
• M12: 18,790,989 km (0.084 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 532.8

Radius: 4.5

Gravity: 26.31 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 6.37 AU - 7.63 AU

Year: 12561 Days

Day: 21.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 44,233,791 km

• M1: 55,950 km (0.081 R)
• M2: 269,875 km (0.081 R)
• M3: 579,841 km (0.07 R)
• M4: 782,546 km (0.086 R)
• M5: 2,235,142 km (0.117 R)
• M6: 2,487,813 km (0.106 R)
• M7: 2,802,866 km (0.11 R)
• M8: 3,191,371 km (0.11 R)
• M9: 3,881,167 km (0.106 R)
• M10: 7,431,723 km (0.092 R)
• M11: 7,774,601 km (0.091 R)
• M12: 9,107,070 km (0.104 R)
• M13: 9,301,996 km (0.102 R)
• M14: 10,424,728 km (0.107 R)
• M15: 11,749,118 km (0.067 R)
• M16: 16,969,934 km (0.096 R)
• M17: 22,737,680 km (0.118 R)
• M18: 23,096,714 km (0.087 R)
• M19: 23,368,384 km (0.077 R)
• M20: 27,705,226 km (0.104 R)
• M21: 36,562,019 km (0.12 R)
• M22: 42,634,795 km (0.063 R)
• M23: 44,846,150 km (0.062 R)
• M24: 46,266,433 km (0.071 R)
• M25: 50,250,673 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 169.4

Radius: 5.7

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 6.74 AU - 10.94 AU

Year: 17827 Days

Day: 17 Hours

Environment

Temp: -227 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 44,233,791 km

• M1: 71,807 km (0.071 R)
• M2: 636,689 km (0.095 R)
• M3: 1,136,944 km (0.076 R)
• M4: 1,586,934 km (0.064 R)
• M5: 2,362,749 km (0.109 R)
• M6: 3,936,369 km (0.115 R)
• M7: 4,203,551 km (0.036 R)
• M8: 4,397,579 km (0.106 R)
• M9: 6,795,782 km (0.03 R)
• M10: 14,390,418 km (0.061 R)
• M11: 14,832,629 km (0.088 R)
• M12: 16,761,544 km (0.11 R)
• M13: 18,926,524 km (0.103 R)
• M14: 19,842,512 km (0.084 R)
• M15: 20,469,327 km (0.069 R)
• M16: 23,802,667 km (0.056 R)
• M17: 32,913,776 km (0.03 R)
• M18: 34,460,019 km (0.079 R)
• M19: 36,518,187 km (0.085 R)
• M20: 40,877,917 km (0.118 R)
• M21: 43,052,023 km (0.077 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 514 - 11,005 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit