🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 987.4

Radius: 12.6

Gravity: 6.22 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.61 AU - 0.71 AU

Year: 358 Days

Day: 12.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 59,338,432 km

• M1: 159,920 km (0.11 R)
• M2: 583,581 km (0.086 R)
• M3: 1,052,421 km (0.102 R)
• M4: 1,705,865 km (0.064 R)
• M5: 2,169,468 km (0.112 R)
• M6: 2,608,688 km (0.099 R)
• M7: 3,744,435 km (0.097 R)
• M8: 4,271,169 km (0.11 R)
• M9: 5,217,375 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 230.3

Radius: 11.1

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.71 AU - 1.13 AU

Year: 588 Days

Day: 8.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 59,338,432 km

• M1: 138,079 km (0.119 R)
• M2: 729,290 km (0.059 R)
• M3: 1,104,930 km (0.115 R)
• M4: 1,478,775 km (0.092 R)
• M5: 1,900,791 km (0.105 R)
• M6: 2,456,547 km (0.097 R)
• M7: 3,034,593 km (0.118 R)
• M8: 3,401,108 km (0.071 R)
• M9: 3,907,496 km (0.028 R)
• M10: 4,490,778 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.9

Radius: 12.1

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 2.02 AU - 2.68 AU

Year: 2402 Days

Day: 8 Hours

Environment

Temp: -199 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 59,338,432 km

• M1: 150,795 km (0.102 R)
• M2: 531,222 km (0.101 R)
• M3: 949,348 km (0.066 R)
• M4: 1,355,357 km (0.082 R)
• M5: 1,760,617 km (0.086 R)
• M6: 2,160,492 km (0.111 R)
• M7: 2,780,127 km (0.091 R)
• M8: 3,463,640 km (0.1 R)
• M9: 5,099,343 km (0.105 R)
• M10: 5,826,538 km (0.118 R)
• M11: 6,541,616 km (0.118 R)
• M12: 7,143,747 km (0.072 R)
• M13: 9,789,984 km (0.077 R)
• M14: 11,140,853 km (0.111 R)
• M15: 12,001,040 km (0.079 R)
• M16: 15,648,685 km (0.092 R)
• M17: 17,029,922 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 358.1

Radius: 12

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 2.28 AU - 2.52 AU

Year: 2479 Days

Day: 10.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 59,338,432 km

• M1: 172,187 km (0.11 R)
• M2: 706,401 km (0.114 R)
• M3: 1,159,084 km (0.079 R)
• M4: 2,115,912 km (0.107 R)
• M5: 2,715,052 km (0.106 R)
• M6: 5,214,982 km (0.11 R)
• M7: 5,876,055 km (0.106 R)
• M8: 7,065,358 km (0.059 R)
• M9: 12,763,092 km (0.04 R)
• M10: 14,658,497 km (0.053 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 369.3

Radius: 3.6

Gravity: 28.5 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 5.16 AU - 8.34 AU

Year: 11695 Days

Day: 23.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 59,338,432 km

• M1: 45,179 km (0.115 R)
• M2: 257,308 km (0.118 R)
• M3: 737,069 km (0.104 R)
• M4: 2,148,375 km (0.102 R)
• M5: 4,039,442 km (0.099 R)
• M6: 5,582,843 km (0.08 R)
• M7: 6,668,923 km (0.101 R)
• M8: 7,971,921 km (0.113 R)
• M9: 8,183,153 km (0.075 R)
• M10: 13,230,884 km (0.095 R)
• M11: 15,724,531 km (0.118 R)
• M12: 21,535,212 km (0.118 R)
• M13: 23,548,799 km (0.111 R)
• M14: 27,848,541 km (0.077 R)
• M15: 32,428,630 km (0.11 R)
• M16: 38,078,343 km (0.058 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 117.2

Radius: 7.7

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 8.27 AU - 11.05 AU

Year: 20021 Days

Day: 24.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 59,338,432 km

• M1: 95,743 km (0.038 R)
• M2: 428,149 km (0.053 R)
• M3: 2,014,635 km (0.103 R)
• M4: 2,754,695 km (0.079 R)
• M5: 4,446,647 km (0.115 R)
• M6: 9,574,862 km (0.083 R)
• M7: 10,050,284 km (0.109 R)
• M8: 12,667,200 km (0.113 R)
• M9: 13,711,094 km (0.114 R)
• M10: 14,011,037 km (0.091 R)
• M11: 17,325,079 km (0.117 R)
• M12: 19,880,061 km (0.113 R)
• M13: 22,509,393 km (0.091 R)
• M14: 23,011,144 km (0.068 R)
• M15: 23,264,862 km (0.093 R)
• M16: 26,179,927 km (0.062 R)
• M17: 27,015,281 km (0.11 R)
• M18: 27,486,963 km (0.062 R)
• M19: 28,446,933 km (0.099 R)
• M20: 39,427,267 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 259.8

Radius: 5.3

Gravity: 9.25 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 10.02 AU - 10.78 AU

Year: 22366 Days

Day: 23.8 Hours

Environment

Temp: -244 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 59,338,432 km

• M1: 519,105 km (0.075 R)
• M2: 3,191,671 km (0.035 R)
• M3: 3,396,021 km (0.11 R)
• M4: 3,609,049 km (0.077 R)
• M5: 4,332,953 km (0.079 R)
• M6: 5,575,812 km (0.118 R)
• M7: 6,621,052 km (0.087 R)
• M8: 9,040,947 km (0.118 R)
• M9: 12,551,411 km (0.111 R)
• M10: 17,184,158 km (0.073 R)
• M11: 18,868,031 km (0.115 R)
• M12: 19,452,959 km (0.1 R)
• M13: 19,792,546 km (0.112 R)
• M14: 20,222,640 km (0.106 R)
• M15: 23,409,374 km (0.102 R)
• M16: 26,188,005 km (0.093 R)
• M17: 29,068,213 km (0.03 R)
• M18: 32,034,738 km (0.087 R)
• M19: 37,373,438 km (0.102 R)
• M20: 50,086,564 km (0.05 R)
• M21: 51,367,720 km (0.064 R)
• M22: 53,995,257 km (0.08 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: 209 - 12,610 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit