🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.5

Radius: 10.2

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.63 AU - 0.63 AU

Year: 339 Days

Day: 9.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 80,454,908 km

• M1: 126,859 km (0.065 R)
• M2: 484,996 km (0.114 R)
• M3: 940,821 km (0.045 R)
• M4: 1,913,656 km (0.087 R)
• M5: 2,263,266 km (0.046 R)
• M6: 3,613,686 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.1

Radius: 13.9

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.68 AU - 0.86 AU

Year: 458 Days

Day: 13.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,454,908 km

• M1: 172,935 km (0.029 R)
• M2: 712,385 km (0.111 R)
• M3: 1,293,423 km (0.038 R)
• M4: 1,889,870 km (0.101 R)
• M5: 2,415,407 km (0.115 R)
• M6: 3,018,137 km (0.063 R)
• M7: 3,615,182 km (0.118 R)
• M8: 4,148,798 km (0.08 R)
• M9: 4,748,984 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.4

Radius: 14.8

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.76 AU - 0.84 AU

Year: 485 Days

Day: 6.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,454,908 km

• M1: 185,501 km (0.052 R)
• M2: 648,058 km (0.096 R)
• M3: 1,207,105 km (0.11 R)
• M4: 2,313,681 km (0.104 R)
• M5: 3,231,164 km (0.08 R)
• M6: 4,076,991 km (0.059 R)
• M7: 5,504,753 km (0.117 R)
• M8: 6,343,399 km (0.117 R)
• M9: 6,894,667 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.1

Radius: 12.5

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 4.9 AU - 5.62 AU

Year: 8182 Days

Day: 13.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 80,454,908 km

• M1: 155,432 km (0.047 R)
• M2: 568,921 km (0.09 R)
• M3: 991,535 km (0.106 R)
• M4: 1,809,835 km (0.092 R)
• M5: 3,870,546 km (0.108 R)
• M6: 4,471,331 km (0.091 R)
• M7: 4,913,243 km (0.045 R)
• M8: 9,371,708 km (0.031 R)
• M9: 10,170,112 km (0.079 R)
• M10: 11,355,974 km (0.115 R)
• M11: 15,466,924 km (0.09 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 402.8

Radius: 6.5

Gravity: 9.53 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 5.47 AU - 6.57 AU

Year: 10018 Days

Day: 15.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 80,454,908 km

• M1: 110,104 km (0.101 R)
• M2: 326,722 km (0.034 R)
• M3: 628,610 km (0.112 R)
• M4: 1,323,044 km (0.104 R)
• M5: 1,815,969 km (0.102 R)
• M6: 2,048,144 km (0.103 R)
• M7: 2,668,078 km (0.095 R)
• M8: 3,360,866 km (0.099 R)
• M9: 6,829,741 km (0.094 R)
• M10: 8,363,718 km (0.113 R)
• M11: 8,747,885 km (0.104 R)
• M12: 16,605,663 km (0.12 R)
• M13: 20,394,678 km (0.09 R)
• M14: 23,693,760 km (0.097 R)
• M15: 25,513,767 km (0.105 R)
• M16: 27,425,030 km (0.084 R)
• M17: 32,044,462 km (0.114 R)
• M18: 36,363,203 km (0.096 R)
• M19: 36,701,893 km (0.096 R)
• M20: 37,730,827 km (0.101 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 625.3

Radius: 5.1

Gravity: 24.04 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 6.94 AU - 8.46 AU

Year: 14492 Days

Day: 23.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 80,454,908 km

• M1: 63,429 km (0.085 R)
• M2: 688,150 km (0.073 R)
• M3: 855,251 km (0.118 R)
• M4: 1,922,632 km (0.08 R)
• M5: 2,360,355 km (0.12 R)
• M6: 2,613,774 km (0.118 R)
• M7: 3,729,325 km (0.108 R)
• M8: 5,340,494 km (0.075 R)
• M9: 10,621,748 km (0.095 R)
• M10: 12,156,024 km (0.086 R)
• M11: 15,221,883 km (0.119 R)
• M12: 17,242,202 km (0.074 R)
• M13: 23,298,223 km (0.12 R)
• M14: 31,208,809 km (0.113 R)
• M15: 35,697,941 km (0.095 R)
• M16: 40,875,973 km (0.113 R)
• M17: 42,850,515 km (0.039 R)
• M18: 45,630,492 km (0.088 R)
• M19: 48,684,383 km (0.041 R)
• M20: 50,101,972 km (0.12 R)
• M21: 50,740,755 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 962.7

Radius: 7.9

Gravity: 15.43 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 8.15 AU - 9.87 AU

Year: 18343 Days

Day: 24.4 Hours

Environment

Temp: -243 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 80,454,908 km

• M1: 98,286 km (0.114 R)
• M2: 403,316 km (0.092 R)
• M3: 1,063,192 km (0.109 R)
• M4: 1,309,131 km (0.053 R)
• M5: 1,938,938 km (0.089 R)
• M6: 2,515,339 km (0.083 R)
• M7: 2,882,302 km (0.073 R)
• M8: 3,663,053 km (0.106 R)
• M9: 4,438,270 km (0.063 R)
• M10: 4,828,421 km (0.089 R)
• M11: 5,841,647 km (0.043 R)
• M12: 8,334,995 km (0.111 R)
• M13: 8,819,393 km (0.113 R)
• M14: 9,265,643 km (0.065 R)
• M15: 9,552,123 km (0.083 R)
• M16: 10,632,669 km (0.06 R)
• M17: 12,197,462 km (0.088 R)
• M18: 12,611,400 km (0.074 R)
• M19: 13,467,548 km (0.117 R)
• M20: 15,136,911 km (0.111 R)
• M21: 18,608,180 km (0.082 R)
• M22: 20,966,441 km (0.05 R)
• M23: 21,560,644 km (0.044 R)
• M24: 27,778,829 km (0.059 R)
• M25: 29,717,916 km (0.052 R)
• M26: 30,974,538 km (0.116 R)
• M27: 32,005,118 km (0.109 R)
• M28: 35,095,212 km (0.12 R)
• M29: 48,238,133 km (0.055 R)
• M30: 51,031,424 km (0.06 R)
• M31: 61,454,805 km (0.082 R)
• M32: 62,875,237 km (0.091 R)
• M33: 69,648,729 km (0.091 R)
• M34: 71,637,932 km (0.111 R)
• M35: 74,577,531 km (0.03 R)
• M36: 75,036,796 km (0.107 R)
• M37: 75,729,285 km (0.053 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 328 - 10,365 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit