🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502.7

Radius: 14.9

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.61 AU - 0.91 AU

Year: 449 Days

Day: 8.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 41,954,151 km

• M1: 185,352 km (0.116 R)
• M2: 682,615 km (0.087 R)
• M3: 1,178,532 km (0.083 R)
• M4: 1,689,409 km (0.071 R)
• M5: 2,281,667 km (0.096 R)
• M6: 3,001,532 km (0.118 R)
• M7: 4,085,667 km (0.045 R)
• M8: 4,870,907 km (0.064 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 506.3

Radius: 14.7

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.74 AU - 1.18 AU

Year: 638 Days

Day: 9.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,954,151 km

• M1: 182,809 km (0.097 R)
• M2: 647,160 km (0.032 R)
• M3: 1,417,290 km (0.091 R)
• M4: 2,483,624 km (0.102 R)
• M5: 3,187,033 km (0.072 R)
• M6: 4,204,299 km (0.043 R)
• M7: 4,947,950 km (0.113 R)
• M8: 6,255,435 km (0.074 R)
• M9: 6,779,028 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.5

Radius: 10.5

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 1.38 AU - 1.58 AU

Year: 1221 Days

Day: 11.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 41,954,151 km

• M1: 130,599 km (0.091 R)
• M2: 878,738 km (0.109 R)
• M3: 1,383,481 km (0.08 R)
• M4: 3,265,572 km (0.088 R)
• M5: 3,893,135 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.4

Radius: 9.3

Gravity: 7.03 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.58 AU - 1.7 AU

Year: 1424 Days

Day: 10.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 41,954,151 km

• M1: 115,639 km (0.098 R)
• M2: 410,048 km (0.078 R)
• M3: 809,773 km (0.087 R)
• M4: 1,235,230 km (0.069 R)
• M5: 1,806,544 km (0.102 R)
• M6: 2,164,831 km (0.055 R)
• M7: 2,646,985 km (0.082 R)
• M8: 3,199,599 km (0.108 R)
• M9: 3,996,358 km (0.092 R)
• M10: 5,284,994 km (0.11 R)
• M11: 5,733,937 km (0.103 R)
• M12: 6,024,605 km (0.077 R)
• M13: 6,538,773 km (0.078 R)
• M14: 7,158,408 km (0.041 R)
• M15: 7,843,716 km (0.117 R)
• M16: 9,654,299 km (0.114 R)
• M17: 9,970,399 km (0.11 R)
• M18: 11,235,548 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 108.6

Radius: 11

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 2.46 AU - 2.48 AU

Year: 2633 Days

Day: 5.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 129.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,954,151 km

• M1: 137,032 km (0.054 R)
• M2: 820,245 km (0.077 R)
• M3: 3,147,539 km (0.08 R)
• M4: 3,838,831 km (0.108 R)
• M5: 4,246,186 km (0.119 R)
• M6: 5,264,798 km (0.09 R)
• M7: 6,851,582 km (0.114 R)
• M8: 8,708,541 km (0.074 R)
• M9: 9,590,719 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 14

Radius: 11

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 3.3 AU - 5.48 AU

Year: 6239 Days

Day: 6.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 41,954,151 km

• M1: 148,700 km (0.112 R)
• M2: 626,217 km (0.119 R)
• M3: 1,153,998 km (0.071 R)
• M4: 1,613,712 km (0.093 R)
• M5: 2,483,923 km (0.057 R)
• M6: 3,102,361 km (0.108 R)
• M7: 3,627,898 km (0.084 R)
• M8: 4,612,551 km (0.065 R)
• M9: 6,586,046 km (0.119 R)
• M10: 7,674,371 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 624.7

Radius: 6.7

Gravity: 13.92 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 6.29 AU - 6.41 AU

Year: 10853 Days

Day: 24.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 41,954,151 km

• M1: 83,326 km (0.093 R)
• M2: 319,840 km (0.101 R)
• M3: 641,476 km (0.032 R)
• M4: 1,080,396 km (0.059 R)
• M5: 1,393,355 km (0.106 R)
• M6: 3,080,669 km (0.105 R)
• M7: 3,314,790 km (0.114 R)
• M8: 3,898,670 km (0.081 R)
• M9: 5,605,283 km (0.098 R)
• M10: 6,027,298 km (0.061 R)
• M11: 6,282,961 km (0.036 R)
• M12: 6,855,472 km (0.081 R)
• M13: 7,672,276 km (0.082 R)
• M14: 8,016,501 km (0.116 R)
• M15: 8,326,169 km (0.116 R)
• M16: 9,694,690 km (0.106 R)
• M17: 9,995,531 km (0.107 R)
• M18: 10,458,537 km (0.092 R)
• M19: 11,482,684 km (0.105 R)
• M20: 12,279,143 km (0.093 R)
• M21: 14,108,725 km (0.095 R)
• M22: 14,365,584 km (0.086 R)
• M23: 15,629,088 km (0.035 R)
• M24: 17,182,512 km (0.097 R)
• M25: 18,375,106 km (0.03 R)
• M26: 19,226,318 km (0.062 R)
• M27: 25,174,928 km (0.048 R)
• M28: 26,515,325 km (0.025 R)
• M29: 32,354,579 km (0.07 R)
• M30: 32,801,727 km (0.085 R)
• M31: 48,650,424 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 109.4

Radius: 4.2

Gravity: 6.2 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 7.36 AU - 12.04 AU

Year: 20490 Days

Day: 24.4 Hours

Environment

Temp: -239 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 41,954,151 km

• M1: 92,900 km (0.113 R)
• M2: 304,880 km (0.04 R)
• M3: 492,327 km (0.119 R)
• M4: 1,002,007 km (0.081 R)
• M5: 1,530,835 km (0.073 R)
• M6: 2,733,901 km (0.083 R)
• M7: 3,156,665 km (0.072 R)
• M8: 3,430,429 km (0.102 R)
• M9: 6,255,285 km (0.114 R)
• M10: 7,410,929 km (0.039 R)
• M11: 8,614,294 km (0.099 R)
• M12: 10,882,796 km (0.095 R)
• M13: 15,497,292 km (0.082 R)
• M14: 19,481,532 km (0.032 R)
• M15: 32,894,029 km (0.066 R)
• M16: 33,215,664 km (0.099 R)
• M17: 34,302,941 km (0.092 R)
• M18: 35,638,551 km (0.091 R)
• M19: 40,709,620 km (0.09 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: 198 - 19,228 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit