🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370.7

Radius: 13.3

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.61 AU - 0.79 AU

Year: 391 Days

Day: 14 Hours

Environment

Temp: -164 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 23,300,804 km

• M1: 165,455 km (0.066 R)
• M2: 644,318 km (0.057 R)
• M3: 1,311,375 km (0.049 R)
• M4: 2,173,657 km (0.032 R)
• M5: 2,825,156 km (0.104 R)
• M6: 3,785,574 km (0.072 R)
• M7: 4,393,241 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.6

Radius: 12.7

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.34 AU - 1.74 AU

Year: 1274 Days

Day: 9.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 23,300,804 km

• M1: 160,070 km (0.083 R)
• M2: 851,361 km (0.096 R)
• M3: 1,598,902 km (0.082 R)
• M4: 2,176,350 km (0.098 R)
• M5: 3,157,113 km (0.101 R)
• M6: 3,679,360 km (0.115 R)
• M7: 4,075,644 km (0.109 R)
• M8: 5,829,979 km (0.096 R)
• M9: 6,620,454 km (0.112 R)
• M10: 7,505,924 km (0.102 R)
• M11: 8,938,174 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 506.1

Radius: 12.1

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1.26 AU - 1.92 AU

Year: 1337 Days

Day: 6.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 23,300,804 km

• M1: 150,795 km (0.112 R)
• M2: 541,395 km (0.05 R)
• M3: 943,813 km (0.058 R)
• M4: 1,326,036 km (0.054 R)
• M5: 1,768,247 km (0.108 R)
• M6: 2,577,422 km (0.113 R)
• M7: 3,903,457 km (0.116 R)
• M8: 4,735,969 km (0.108 R)
• M9: 5,517,169 km (0.096 R)
• M10: 6,800,420 km (0.104 R)
• M11: 7,925,994 km (0.036 R)
• M12: 8,437,021 km (0.093 R)
• M13: 9,347,473 km (0.102 R)
• M14: 10,196,740 km (0.114 R)
• M15: 10,997,987 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 453.2

Radius: 12

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 2.4 AU - 2.78 AU

Year: 2780 Days

Day: 12.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 23,300,804 km

• M1: 149,299 km (0.073 R)
• M2: 695,331 km (0.064 R)
• M3: 1,101,938 km (0.078 R)
• M4: 1,693,149 km (0.053 R)
• M5: 2,850,438 km (0.088 R)
• M6: 4,192,630 km (0.103 R)
• M7: 4,751,827 km (0.1 R)
• M8: 5,128,963 km (0.107 R)
• M9: 6,356,563 km (0.067 R)
• M10: 7,472,563 km (0.075 R)
• M11: 8,265,282 km (0.109 R)
• M12: 8,813,409 km (0.042 R)
• M13: 9,316,955 km (0.071 R)
• M14: 9,946,613 km (0.109 R)
• M15: 10,641,794 km (0.076 R)
• M16: 12,047,715 km (0.074 R)
• M17: 13,529,931 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497.1

Radius: 9.8

Gravity: 5.18 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 2.94 AU - 4.52 AU

Year: 4804 Days

Day: 14.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 23,300,804 km

• M1: 121,922 km (0.088 R)
• M2: 441,912 km (0.119 R)
• M3: 1,411,306 km (0.114 R)
• M4: 1,779,915 km (0.071 R)
• M5: 2,331,782 km (0.08 R)
• M6: 3,350,394 km (0.108 R)
• M7: 4,217,164 km (0.062 R)
• M8: 5,605,881 km (0.104 R)
• M9: 6,061,855 km (0.034 R)
• M10: 6,697,796 km (0.101 R)
• M11: 7,512,207 km (0.112 R)
• M12: 7,820,977 km (0.084 R)
• M13: 9,694,540 km (0.116 R)
• M14: 11,216,699 km (0.116 R)
• M15: 12,175,023 km (0.111 R)
• M16: 13,789,932 km (0.084 R)
• M17: 17,861,238 km (0.101 R)
• M18: 18,724,417 km (0.103 R)
• M19: 19,550,647 km (0.072 R)
• M20: 20,467,233 km (0.044 R)
• M21: 23,172,112 km (0.054 R)
• M22: 24,497,250 km (0.11 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 349.4

Radius: 6.1

Gravity: 9.39 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 8.28 AU - 8.54 AU

Year: 16264 Days

Day: 18.8 Hours

Environment

Temp: -234 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 23,300,804 km

• M1: 83,326 km (0.116 R)
• M2: 309,219 km (0.106 R)
• M3: 1,313,170 km (0.091 R)
• M4: 1,858,155 km (0.058 R)
• M5: 2,173,059 km (0.108 R)
• M6: 3,938,613 km (0.091 R)
• M7: 5,497,273 km (0.054 R)
• M8: 7,905,499 km (0.069 R)
• M9: 15,770,458 km (0.057 R)
• M10: 16,269,666 km (0.11 R)
• M11: 17,001,200 km (0.052 R)
• M12: 18,216,982 km (0.09 R)
• M13: 22,299,507 km (0.032 R)
• M14: 38,375,893 km (0.03 R)
• M15: 40,592,634 km (0.058 R)
• M16: 42,618,040 km (0.106 R)
• M17: 44,145,584 km (0.083 R)
• M18: 44,851,686 km (0.076 R)
• M19: 50,467,290 km (0.065 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 20

Radius: 5.7

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 8.65 AU - 10.55 AU

Year: 19835 Days

Day: 18.7 Hours

Environment

Temp: -232 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 23,300,804 km

• M1: 74,799 km (0.097 R)
• M2: 483,949 km (0.085 R)
• M3: 710,739 km (0.081 R)
• M4: 1,513,482 km (0.101 R)
• M5: 3,851,996 km (0.106 R)
• M6: 4,556,602 km (0.079 R)
• M7: 5,113,704 km (0.074 R)
• M8: 7,472,264 km (0.107 R)
• M9: 10,028,592 km (0.109 R)
• M10: 18,575,717 km (0.056 R)
• M11: 22,271,084 km (0.119 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 385 - 15,476 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit