🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339.8

Radius: 9

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.77 AU - 0.91 AU

Year: 505 Days

Day: 11 Hours

Environment

Temp: -150 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 49,730,946 km

• M1: 111,899 km (0.072 R)
• M2: 408,253 km (0.086 R)
• M3: 738,415 km (0.091 R)
• M4: 1,164,320 km (0.117 R)
• M5: 1,685,818 km (0.116 R)
• M6: 2,028,996 km (0.082 R)
• M7: 3,249,116 km (0.072 R)
• M8: 3,533,502 km (0.112 R)
• M9: 4,036,151 km (0.065 R)
• M10: 4,641,872 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.9

Radius: 12.2

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.21 AU - 1.23 AU

Year: 884 Days

Day: 12.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 49,730,946 km

• M1: 151,991 km (0.101 R)
• M2: 695,331 km (0.105 R)
• M3: 1,478,027 km (0.085 R)
• M4: 2,067,143 km (0.114 R)
• M5: 2,643,394 km (0.05 R)
• M6: 4,773,219 km (0.098 R)
• M7: 5,529,586 km (0.061 R)
• M8: 7,635,924 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531.3

Radius: 15

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.96 AU - 1.58 AU

Year: 939 Days

Day: 10 Hours

Environment

Temp: -173 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 49,730,946 km

• M1: 186,698 km (0.099 R)
• M2: 735,722 km (0.049 R)
• M3: 1,293,722 km (0.12 R)
• M4: 1,862,942 km (0.074 R)
• M5: 2,690,667 km (0.104 R)
• M6: 3,375,975 km (0.095 R)
• M7: 5,263,302 km (0.059 R)
• M8: 6,259,175 km (0.072 R)
• M9: 7,080,318 km (0.109 R)
• M10: 8,395,133 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385.8

Radius: 10.6

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.27 AU - 1.43 AU

Year: 1029 Days

Day: 14.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,730,946 km

• M1: 134,488 km (0.12 R)
• M2: 531,222 km (0.076 R)
• M3: 861,085 km (0.114 R)
• M4: 1,307,934 km (0.078 R)
• M5: 1,776,325 km (0.079 R)
• M6: 2,334,026 km (0.097 R)
• M7: 2,871,232 km (0.063 R)
• M8: 3,801,282 km (0.054 R)
• M9: 4,449,340 km (0.107 R)
• M10: 4,938,675 km (0.106 R)
• M11: 5,388,964 km (0.108 R)
• M12: 5,768,943 km (0.111 R)
• M13: 6,561,512 km (0.086 R)
• M14: 6,951,065 km (0.084 R)
• M15: 8,287,872 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 92.3

Radius: 10.3

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.16 AU - 1.8 AU

Year: 1181 Days

Day: 11.4 Hours

Environment

Temp: -170 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 49,730,946 km

• M1: 128,205 km (0.06 R)
• M2: 706,252 km (0.062 R)
• M3: 1,257,370 km (0.108 R)
• M4: 1,792,033 km (0.026 R)
• M5: 2,511,599 km (0.113 R)
• M6: 3,003,327 km (0.048 R)
• M7: 3,707,484 km (0.059 R)
• M8: 4,099,131 km (0.094 R)
• M9: 5,426,663 km (0.054 R)
• M10: 5,829,380 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 249.8

Radius: 9.8

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 2.05 AU - 2.23 AU

Year: 2054 Days

Day: 14.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 49,730,946 km

• M1: 124,615 km (0.037 R)
• M2: 466,596 km (0.098 R)
• M3: 843,433 km (0.048 R)
• M4: 1,771,239 km (0.05 R)
• M5: 3,200,347 km (0.081 R)
• M6: 3,575,988 km (0.071 R)
• M7: 4,031,513 km (0.042 R)
• M8: 4,655,336 km (0.039 R)
• M9: 5,321,645 km (0.066 R)
• M10: 11,535,193 km (0.032 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.5

Radius: 13.4

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.99 AU - 2.81 AU

Year: 2439 Days

Day: 13 Hours

Environment

Temp: -195 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,730,946 km

• M1: 169,943 km (0.079 R)
• M2: 613,351 km (0.046 R)
• M3: 1,353,711 km (0.091 R)
• M4: 1,845,140 km (0.111 R)
• M5: 2,893,672 km (0.075 R)
• M6: 3,426,689 km (0.098 R)
• M7: 3,896,875 km (0.076 R)
• M8: 5,177,732 km (0.106 R)
• M9: 6,862,054 km (0.099 R)
• M10: 8,128,400 km (0.08 R)
• M11: 8,999,210 km (0.116 R)
• M12: 10,296,971 km (0.072 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534.5

Radius: 11

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 2.69 AU - 3.87 AU

Year: 3897 Days

Day: 5.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 49,730,946 km

• M1: 136,732 km (0.117 R)
• M2: 868,416 km (0.107 R)
• M3: 1,482,964 km (0.095 R)
• M4: 1,933,552 km (0.1 R)
• M5: 2,298,272 km (0.088 R)
• M6: 2,857,020 km (0.107 R)
• M7: 3,205,284 km (0.099 R)
• M8: 3,641,212 km (0.112 R)
• M9: 4,247,383 km (0.071 R)
• M10: 4,822,736 km (0.109 R)
• M11: 5,449,551 km (0.04 R)
• M12: 7,792,703 km (0.105 R)
• M13: 8,199,609 km (0.105 R)
• M14: 10,411,713 km (0.093 R)
• M15: 11,459,346 km (0.07 R)
• M16: 12,031,259 km (0.086 R)
• M17: 12,438,165 km (0.101 R)
• M18: 13,665,915 km (0.078 R)
• M19: 15,024,563 km (0.12 R)
• M20: 17,086,620 km (0.114 R)
• M21: 22,437,586 km (0.117 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 374.6

Radius: 5.5

Gravity: 12.38 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 7.74 AU - 7.86 AU

Year: 14291 Days

Day: 23.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 49,730,946 km

• M1: 69,264 km (0.067 R)
• M2: 268,079 km (0.085 R)
• M3: 448,046 km (0.071 R)
• M4: 664,813 km (0.058 R)
• M5: 2,179,491 km (0.057 R)
• M6: 2,645,638 km (0.055 R)
• M7: 2,902,498 km (0.112 R)
• M8: 3,199,300 km (0.087 R)
• M9: 5,357,249 km (0.113 R)
• M10: 6,540,569 km (0.12 R)
• M11: 9,559,005 km (0.113 R)
• M12: 10,061,953 km (0.103 R)
• M13: 10,582,404 km (0.103 R)
• M14: 14,541,811 km (0.031 R)
• M15: 14,871,674 km (0.114 R)
• M16: 16,383,061 km (0.069 R)
• M17: 16,957,068 km (0.117 R)
• M18: 17,918,384 km (0.068 R)
• M19: 21,356,742 km (0.081 R)
• M20: 23,545,358 km (0.094 R)
• M21: 29,503,542 km (0.059 R)
• M22: 30,459,922 km (0.118 R)
• M23: 34,143,320 km (0.094 R)
• M24: 37,863,969 km (0.037 R)
• M25: 39,119,544 km (0.078 R)
• M26: 41,185,790 km (0.065 R)
• M27: 46,953,685 km (0.112 R)
• M28: 48,842,358 km (0.08 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: 512 - 13,989 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit