🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 776.9

Radius: 11

Gravity: 6.42 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.84 AU - 1.14 AU

Year: 680 Days

Day: 5.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 88,031,092 km

• M1: 136,882 km (0.115 R)
• M2: 568,771 km (0.066 R)
• M3: 1,031,328 km (0.073 R)
• M4: 1,734,887 km (0.11 R)
• M5: 2,293,934 km (0.05 R)
• M6: 2,700,840 km (0.065 R)
• M7: 3,143,201 km (0.029 R)
• M8: 3,496,252 km (0.103 R)
• M9: 3,905,252 km (0.101 R)
• M10: 4,283,286 km (0.12 R)
• M11: 4,702,459 km (0.099 R)
• M12: 5,419,332 km (0.059 R)
• M13: 5,949,807 km (0.078 R)
• M14: 6,640,201 km (0.086 R)
• M15: 7,496,948 km (0.072 R)
• M16: 8,083,970 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 481.3

Radius: 8.8

Gravity: 6.22 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.8 AU - 1.22 AU

Year: 701 Days

Day: 7.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 88,031,092 km

• M1: 109,655 km (0.066 R)
• M2: 506,987 km (0.052 R)
• M3: 817,403 km (0.088 R)
• M4: 1,657,844 km (0.052 R)
• M5: 2,113,818 km (0.103 R)
• M6: 2,412,116 km (0.11 R)
• M7: 2,872,878 km (0.09 R)
• M8: 3,455,412 km (0.083 R)
• M9: 4,027,773 km (0.042 R)
• M10: 5,053,566 km (0.078 R)
• M11: 6,263,663 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130

Radius: 14.8

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.11 AU - 1.43 AU

Year: 988 Days

Day: 6.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 88,031,092 km

• M1: 184,903 km (0.058 R)
• M2: 666,459 km (0.067 R)
• M3: 1,185,563 km (0.074 R)
• M4: 1,685,968 km (0.057 R)
• M5: 2,393,267 km (0.092 R)
• M6: 4,639,030 km (0.103 R)
• M7: 5,229,343 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 532.4

Radius: 11.8

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.25 AU - 1.75 AU

Year: 1268 Days

Day: 14.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 88,031,092 km

• M1: 146,756 km (0.108 R)
• M2: 663,167 km (0.112 R)
• M3: 1,353,113 km (0.102 R)
• M4: 1,953,150 km (0.109 R)
• M5: 2,470,609 km (0.028 R)
• M6: 4,226,888 km (0.027 R)
• M7: 5,662,279 km (0.101 R)
• M8: 7,755,453 km (0.118 R)
• M9: 9,410,304 km (0.098 R)
• M10: 9,949,754 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572

Radius: 12.1

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 2.44 AU - 2.64 AU

Year: 2794 Days

Day: 14 Hours

Environment

Temp: -215 °C

Axial Tilt: 141.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 88,031,092 km

• M1: 217,665 km (0.053 R)
• M2: 709,692 km (0.037 R)
• M3: 1,096,702 km (0.1 R)
• M4: 1,906,326 km (0.043 R)
• M5: 3,676,667 km (0.054 R)
• M6: 6,302,857 km (0.093 R)
• M7: 6,972,458 km (0.118 R)
• M8: 7,844,314 km (0.06 R)
• M9: 8,586,319 km (0.043 R)
• M10: 9,374,551 km (0.031 R)
• M11: 9,914,150 km (0.115 R)
• M12: 10,550,839 km (0.09 R)
• M13: 11,414,916 km (0.117 R)
• M14: 12,030,661 km (0.118 R)
• M15: 13,781,554 km (0.075 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 975.8

Radius: 6.9

Gravity: 20.5 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 7.52 AU - 11.88 AU

Year: 20853 Days

Day: 15 Hours

Environment

Temp: -229 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 88,031,092 km

• M1: 85,869 km (0.105 R)
• M2: 432,637 km (0.084 R)
• M3: 727,943 km (0.108 R)
• M4: 1,169,855 km (0.044 R)
• M5: 1,667,418 km (0.109 R)
• M6: 3,246,274 km (0.094 R)
• M7: 4,154,931 km (0.075 R)
• M8: 4,835,751 km (0.104 R)
• M9: 7,425,141 km (0.101 R)
• M10: 8,046,570 km (0.118 R)
• M11: 10,947,572 km (0.107 R)
• M12: 11,479,542 km (0.077 R)
• M13: 12,594,794 km (0.1 R)
• M14: 14,958,441 km (0.114 R)
• M15: 16,201,749 km (0.095 R)
• M16: 19,081,956 km (0.055 R)
• M17: 20,742,792 km (0.12 R)
• M18: 24,461,346 km (0.066 R)
• M19: 24,799,437 km (0.112 R)
• M20: 26,655,049 km (0.064 R)
• M21: 26,893,359 km (0.043 R)
• M22: 30,380,485 km (0.117 R)
• M23: 32,638,366 km (0.076 R)
• M24: 33,461,304 km (0.113 R)
• M25: 42,465,749 km (0.11 R)
• M26: 44,274,836 km (0.115 R)
• M27: 55,440,522 km (0.08 R)
• M28: 56,415,152 km (0.061 R)
• M29: 62,713,522 km (0.095 R)
• M30: 69,464,874 km (0.069 R)
• M31: 70,369,791 km (0.118 R)
• M32: 79,362,269 km (0.103 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: 258 - 18,136 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit