🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.1

Radius: 10.4

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.84 AU - 0.96 AU

Year: 589 Days

Day: 9.9 Hours

Environment

Temp: -172 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 20,213,357 km

• M1: 134,788 km (0.109 R)
• M2: 501,602 km (0.068 R)
• M3: 825,182 km (0.119 R)
• M4: 1,273,227 km (0.084 R)
• M5: 1,865,485 km (0.093 R)
• M6: 2,633,371 km (0.113 R)
• M7: 3,839,429 km (0.088 R)
• M8: 4,908,456 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948.6

Radius: 9.9

Gravity: 9.68 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.21 AU - 1.23 AU

Year: 930 Days

Day: 13.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 20,213,357 km

• M1: 123,717 km (0.066 R)
• M2: 654,790 km (0.107 R)
• M3: 1,040,603 km (0.109 R)
• M4: 1,639,293 km (0.114 R)
• M5: 2,110,527 km (0.09 R)
• M6: 2,560,517 km (0.085 R)
• M7: 2,886,790 km (0.068 R)
• M8: 3,312,396 km (0.093 R)
• M9: 3,795,298 km (0.087 R)
• M10: 4,170,938 km (0.103 R)
• M11: 5,171,299 km (0.088 R)
• M12: 6,168,519 km (0.1 R)
• M13: 6,806,853 km (0.071 R)
• M14: 7,640,412 km (0.098 R)
• M15: 8,706,446 km (0.062 R)
• M16: 9,102,133 km (0.112 R)
• M17: 9,598,648 km (0.052 R)
• M18: 10,051,631 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 49.1

Radius: 10.9

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.58 AU - 1.66 AU

Year: 1423 Days

Day: 10.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 20,213,357 km

• M1: 135,685 km (0.086 R)
• M2: 530,474 km (0.064 R)
• M3: 1,168,060 km (0.092 R)
• M4: 3,443,294 km (0.109 R)
• M5: 3,828,808 km (0.049 R)
• M6: 4,378,580 km (0.059 R)
• M7: 5,286,190 km (0.053 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 585.1

Radius: 11.9

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.6 AU - 4.33 AU

Year: 4442 Days

Day: 13.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 20,213,357 km

• M1: 147,952 km (0.098 R)
• M2: 589,715 km (0.101 R)
• M3: 1,627,326 km (0.088 R)
• M4: 2,057,270 km (0.091 R)
• M5: 2,987,769 km (0.092 R)
• M6: 3,539,037 km (0.089 R)
• M7: 4,112,595 km (0.036 R)
• M8: 4,821,839 km (0.081 R)
• M9: 5,750,542 km (0.037 R)
• M10: 6,302,708 km (0.095 R)
• M11: 6,826,450 km (0.106 R)
• M12: 7,856,431 km (0.05 R)
• M13: 9,572,020 km (0.101 R)
• M14: 10,016,924 km (0.115 R)
• M15: 12,739,605 km (0.093 R)
• M16: 13,328,273 km (0.106 R)
• M17: 14,559,912 km (0.107 R)
• M18: 15,978,399 km (0.059 R)
• M19: 17,727,048 km (0.058 R)
• M20: 21,122,920 km (0.107 R)
• M21: 22,723,318 km (0.119 R)
• M22: 23,736,096 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 748.7

Radius: 11.4

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 2.95 AU - 4.13 AU

Year: 4597 Days

Day: 9 Hours

Environment

Temp: -209 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 20,213,357 km

• M1: 141,819 km (0.112 R)
• M2: 900,878 km (0.118 R)
• M3: 1,364,781 km (0.085 R)
• M4: 2,436,650 km (0.108 R)
• M5: 2,917,158 km (0.102 R)
• M6: 3,627,599 km (0.071 R)
• M7: 4,047,370 km (0.07 R)
• M8: 4,623,921 km (0.111 R)
• M9: 7,322,068 km (0.095 R)
• M10: 7,850,597 km (0.107 R)
• M11: 11,481,487 km (0.08 R)
• M12: 11,954,515 km (0.101 R)
• M13: 13,661,128 km (0.065 R)
• M14: 14,409,117 km (0.075 R)
• M15: 15,184,184 km (0.113 R)
• M16: 15,928,433 km (0.059 R)
• M17: 17,552,019 km (0.091 R)
• M18: 18,117,050 km (0.069 R)
• M19: 19,750,210 km (0.056 R)
• M20: 22,417,391 km (0.067 R)
• M21: 23,157,451 km (0.054 R)
• M22: 23,685,083 km (0.099 R)
• M23: 28,542,077 km (0.045 R)
• M24: 29,148,846 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518.4

Radius: 14.4

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 4.31 AU - 4.87 AU

Year: 6788 Days

Day: 10.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 20,213,357 km

• M1: 179,218 km (0.089 R)
• M2: 1,076,057 km (0.097 R)
• M3: 2,215,993 km (0.112 R)
• M4: 3,096,526 km (0.077 R)
• M5: 3,574,940 km (0.11 R)
• M6: 5,260,460 km (0.118 R)
• M7: 5,792,878 km (0.119 R)
• M8: 6,426,575 km (0.116 R)
• M9: 7,985,086 km (0.072 R)
• M10: 8,450,933 km (0.075 R)
• M11: 10,965,374 km (0.079 R)
• M12: 12,600,629 km (0.09 R)
• M13: 15,619,214 km (0.095 R)
• M14: 18,954,200 km (0.093 R)
• M15: 19,646,090 km (0.057 R)
• M16: 20,283,078 km (0.079 R)
• M17: 23,126,185 km (0.057 R)
• M18: 23,757,039 km (0.116 R)
• M19: 25,053,155 km (0.071 R)
• M20: 26,738,974 km (0.082 R)
• M21: 28,679,408 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 635.6

Radius: 6.2

Gravity: 16.53 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 4.59 AU - 7.09 AU

Year: 9742 Days

Day: 22.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 46.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 20,213,357 km

• M1: 78,539 km (0.114 R)
• M2: 386,710 km (0.076 R)
• M3: 1,637,049 km (0.08 R)
• M4: 2,026,752 km (0.104 R)
• M5: 3,548,611 km (0.093 R)
• M6: 3,931,133 km (0.088 R)
• M7: 4,778,455 km (0.054 R)
• M8: 6,019,220 km (0.048 R)
• M9: 6,944,184 km (0.11 R)
• M10: 7,339,571 km (0.044 R)
• M11: 8,705,998 km (0.045 R)
• M12: 13,995,778 km (0.107 R)
• M13: 17,411,247 km (0.098 R)
• M14: 19,894,871 km (0.084 R)
• M15: 21,262,046 km (0.05 R)
• M16: 44,311,488 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 47.5

Radius: 3.4

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 5.18 AU - 7.02 AU

Year: 10399 Days

Day: 16.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 20,213,357 km

• M1: 42,635 km (0.109 R)
• M2: 154,086 km (0.116 R)
• M3: 272,119 km (0.096 R)
• M4: 1,080,695 km (0.11 R)
• M5: 1,313,918 km (0.047 R)
• M6: 3,738,600 km (0.099 R)
• M7: 4,665,958 km (0.088 R)
• M8: 5,505,351 km (0.047 R)
• M9: 7,857,030 km (0.067 R)
• M10: 9,468,049 km (0.084 R)
• M11: 10,603,946 km (0.086 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 354 - 16,620 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit