🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 875.4

Radius: 13

Gravity: 5.18 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.62 AU - 0.96 AU

Year: 446 Days

Day: 9.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 90,762,197 km

• M1: 161,715 km (0.036 R)
• M2: 720,463 km (0.054 R)
• M3: 1,307,037 km (0.1 R)
• M4: 2,090,481 km (0.05 R)
• M5: 2,495,442 km (0.1 R)
• M6: 2,964,282 km (0.096 R)
• M7: 3,891,938 km (0.054 R)
• M8: 4,322,481 km (0.085 R)
• M9: 5,447,606 km (0.092 R)
• M10: 5,988,702 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.8

Radius: 10.6

Gravity: 8.2 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.76 AU - 1.12 AU

Year: 579 Days

Day: 12.4 Hours

Environment

Temp: -153 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 90,762,197 km

• M1: 138,677 km (0.11 R)
• M2: 895,343 km (0.043 R)
• M3: 1,265,897 km (0.113 R)
• M4: 1,621,043 km (0.115 R)
• M5: 2,321,609 km (0.05 R)
• M6: 2,714,005 km (0.077 R)
• M7: 3,089,196 km (0.083 R)
• M8: 3,858,279 km (0.032 R)
• M9: 4,684,807 km (0.045 R)
• M10: 5,088,272 km (0.075 R)
• M11: 6,876,416 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.7

Radius: 12.6

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.29 AU - 1.75 AU

Year: 1192 Days

Day: 13.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 90,762,197 km

• M1: 156,629 km (0.115 R)
• M2: 733,778 km (0.071 R)
• M3: 1,373,159 km (0.108 R)
• M4: 2,044,105 km (0.085 R)
• M5: 2,860,311 km (0.119 R)
• M6: 4,881,379 km (0.092 R)
• M7: 5,349,171 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.3

Radius: 9.7

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 2.47 AU - 3.01 AU

Year: 2884 Days

Day: 11.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 90,762,197 km

• M1: 120,725 km (0.117 R)
• M2: 497,413 km (0.114 R)
• M3: 1,001,707 km (0.088 R)
• M4: 1,718,431 km (0.118 R)
• M5: 2,291,690 km (0.1 R)
• M6: 2,745,570 km (0.11 R)
• M7: 3,443,444 km (0.089 R)
• M8: 4,205,196 km (0.111 R)
• M9: 6,082,201 km (0.056 R)
• M10: 8,117,629 km (0.051 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.2

Radius: 11.7

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.79 AU - 4.35 AU

Year: 4289 Days

Day: 9.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 90,762,197 km

• M1: 145,708 km (0.104 R)
• M2: 711,188 km (0.085 R)
• M3: 1,106,725 km (0.095 R)
• M4: 3,448,231 km (0.101 R)
• M5: 3,999,649 km (0.11 R)
• M6: 4,405,956 km (0.119 R)
• M7: 4,882,874 km (0.082 R)
• M8: 6,139,197 km (0.028 R)
• M9: 6,762,422 km (0.078 R)
• M10: 7,746,327 km (0.112 R)
• M11: 8,791,268 km (0.068 R)
• M12: 9,997,626 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 868

Radius: 9.7

Gravity: 9.23 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 3.58 AU - 4.64 AU

Year: 5298 Days

Day: 10.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 90,762,197 km

• M1: 120,576 km (0.101 R)
• M2: 501,003 km (0.098 R)
• M3: 863,479 km (0.056 R)
• M4: 1,239,867 km (0.108 R)
• M5: 1,647,372 km (0.048 R)
• M6: 2,504,418 km (0.071 R)
• M7: 3,770,315 km (0.101 R)
• M8: 4,150,743 km (0.098 R)
• M9: 5,130,160 km (0.089 R)
• M10: 6,723,228 km (0.107 R)
• M11: 7,466,579 km (0.114 R)
• M12: 8,703,604 km (0.116 R)
• M13: 9,413,895 km (0.116 R)
• M14: 10,714,050 km (0.107 R)
• M15: 11,579,174 km (0.04 R)
• M16: 11,927,887 km (0.069 R)
• M17: 18,238,075 km (0.091 R)
• M18: 19,821,568 km (0.103 R)
• M19: 21,870,760 km (0.107 R)
• M20: 25,621,328 km (0.082 R)
• M21: 32,460,344 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 333.9

Radius: 6

Gravity: 9.28 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 7.77 AU - 8.93 AU

Year: 15341 Days

Day: 18.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 90,762,197 km

• M1: 74,649 km (0.079 R)
• M2: 558,748 km (0.094 R)
• M3: 986,149 km (0.109 R)
• M4: 1,347,877 km (0.081 R)
• M5: 1,655,600 km (0.069 R)
• M6: 2,491,104 km (0.094 R)
• M7: 2,695,754 km (0.088 R)
• M8: 2,911,623 km (0.116 R)
• M9: 3,553,099 km (0.062 R)
• M10: 4,732,229 km (0.086 R)
• M11: 7,576,235 km (0.119 R)
• M12: 8,501,946 km (0.101 R)
• M13: 8,826,574 km (0.1 R)
• M14: 12,015,701 km (0.117 R)
• M15: 12,903,564 km (0.118 R)
• M16: 15,759,537 km (0.109 R)
• M17: 18,697,939 km (0.092 R)
• M18: 27,801,418 km (0.053 R)
• M19: 29,665,407 km (0.067 R)
• M20: 32,954,466 km (0.111 R)
• M21: 44,264,963 km (0.039 R)
• M22: 48,985,524 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 784.7

Radius: 8

Gravity: 12.26 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 10.21 AU - 12.51 AU

Year: 24344 Days

Day: 21.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 90,762,197 km

• M1: 100,231 km (0.088 R)
• M2: 364,570 km (0.028 R)
• M3: 646,113 km (0.087 R)
• M4: 1,246,300 km (0.064 R)
• M5: 1,964,519 km (0.079 R)
• M6: 2,333,577 km (0.062 R)
• M7: 2,621,553 km (0.082 R)
• M8: 2,906,387 km (0.079 R)
• M9: 3,240,589 km (0.115 R)
• M10: 3,986,634 km (0.118 R)
• M11: 4,842,333 km (0.079 R)
• M12: 5,560,702 km (0.075 R)
• M13: 6,626,438 km (0.116 R)
• M14: 7,717,605 km (0.096 R)
• M15: 8,583,477 km (0.089 R)
• M16: 14,375,607 km (0.106 R)
• M17: 16,538,643 km (0.091 R)
• M18: 19,100,955 km (0.108 R)
• M19: 21,085,670 km (0.083 R)
• M20: 24,314,591 km (0.062 R)
• M21: 24,654,627 km (0.114 R)
• M22: 26,402,379 km (0.059 R)
• M23: 29,883,072 km (0.1 R)
• M24: 36,541,075 km (0.117 R)
• M25: 38,195,029 km (0.116 R)
• M26: 42,301,491 km (0.106 R)
• M27: 47,571,076 km (0.115 R)
• M28: 54,606,963 km (0.077 R)
• M29: 55,777,716 km (0.106 R)
• M30: 67,746,742 km (0.078 R)
• M31: 75,402,413 km (0.048 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 361 - 13,289 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit