🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.6

Radius: 11.9

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.68 AU - 0.86 AU

Year: 430 Days

Day: 10.6 Hours

Environment

Temp: -138 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 30,427,057 km

• M1: 147,952 km (0.111 R)
• M2: 627,264 km (0.063 R)
• M3: 1,134,101 km (0.107 R)
• M4: 1,974,243 km (0.041 R)
• M5: 2,378,008 km (0.082 R)
• M6: 2,987,170 km (0.081 R)
• M7: 3,855,885 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 945

Radius: 13.1

Gravity: 5.51 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.89 AU - 1.93 AU

Year: 1678 Days

Day: 5.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 157.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 30,427,057 km

• M1: 163,062 km (0.115 R)
• M2: 575,503 km (0.046 R)
• M3: 1,262,606 km (0.117 R)
• M4: 1,789,340 km (0.091 R)
• M5: 3,380,762 km (0.031 R)
• M6: 4,576,947 km (0.092 R)
• M7: 5,106,075 km (0.086 R)
• M8: 6,062,603 km (0.102 R)
• M9: 6,492,847 km (0.079 R)
• M10: 6,970,812 km (0.085 R)
• M11: 7,673,473 km (0.034 R)
• M12: 8,454,075 km (0.05 R)
• M13: 8,992,478 km (0.114 R)
• M14: 9,520,109 km (0.072 R)
• M15: 10,279,468 km (0.069 R)
• M16: 10,783,463 km (0.11 R)
• M17: 12,556,497 km (0.063 R)
• M18: 13,683,867 km (0.092 R)
• M19: 15,663,944 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966

Radius: 11.3

Gravity: 7.57 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 2.07 AU - 2.31 AU

Year: 2061 Days

Day: 12.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 30,427,057 km

• M1: 140,472 km (0.104 R)
• M2: 527,632 km (0.097 R)
• M3: 911,500 km (0.11 R)
• M4: 1,287,589 km (0.109 R)
• M5: 1,715,140 km (0.116 R)
• M6: 2,135,210 km (0.117 R)
• M7: 2,551,840 km (0.043 R)
• M8: 3,054,938 km (0.114 R)
• M9: 4,385,910 km (0.082 R)
• M10: 4,816,603 km (0.078 R)
• M11: 5,967,010 km (0.056 R)
• M12: 7,233,207 km (0.078 R)
• M13: 8,804,134 km (0.103 R)
• M14: 9,316,955 km (0.094 R)
• M15: 10,031,734 km (0.058 R)
• M16: 10,705,972 km (0.073 R)
• M17: 11,093,430 km (0.099 R)
• M18: 13,528,584 km (0.114 R)
• M19: 15,947,432 km (0.057 R)
• M20: 16,607,308 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 218.8

Radius: 12.5

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.84 AU - 2.66 AU

Year: 2146 Days

Day: 7.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 30,427,057 km

• M1: 155,881 km (0.11 R)
• M2: 598,990 km (0.117 R)
• M3: 1,290,880 km (0.056 R)
• M4: 1,794,277 km (0.073 R)
• M5: 2,535,534 km (0.095 R)
• M6: 3,751,316 km (0.068 R)
• M7: 4,233,470 km (0.047 R)
• M8: 5,024,992 km (0.044 R)
• M9: 5,487,399 km (0.092 R)
• M10: 6,545,056 km (0.064 R)
• M11: 7,892,484 km (0.065 R)
• M12: 10,185,820 km (0.033 R)
• M13: 11,264,271 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.5

Radius: 10.1

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 3.17 AU - 3.41 AU

Year: 3794 Days

Day: 11.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,427,057 km

• M1: 125,662 km (0.09 R)
• M2: 493,075 km (0.112 R)
• M3: 1,887,776 km (0.031 R)
• M4: 3,281,878 km (0.112 R)
• M5: 3,802,927 km (0.119 R)
• M6: 4,295,703 km (0.11 R)
• M7: 5,628,919 km (0.115 R)
• M8: 9,973,840 km (0.117 R)
• M9: 12,074,942 km (0.052 R)
• M10: 14,269,243 km (0.059 R)
• M11: 15,120,455 km (0.105 R)
• M12: 15,657,063 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.8

Radius: 12

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 3.66 AU - 6.08 AU

Year: 6833 Days

Day: 5.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 30,427,057 km

• M1: 149,299 km (0.027 R)
• M2: 560,094 km (0.118 R)
• M3: 984,204 km (0.099 R)
• M4: 3,435,964 km (0.107 R)
• M5: 5,018,560 km (0.083 R)
• M6: 5,458,378 km (0.09 R)
• M7: 8,017,997 km (0.113 R)
• M8: 11,143,396 km (0.111 R)
• M9: 14,237,828 km (0.106 R)
• M10: 16,423,602 km (0.038 R)
• M11: 18,894,211 km (0.069 R)
• M12: 21,222,702 km (0.084 R)
• M13: 23,411,768 km (0.113 R)
• M14: 25,319,440 km (0.085 R)
• M15: 27,779,128 km (0.116 R)
• M16: 34,303,989 km (0.04 R)
• M17: 36,108,737 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 801.2

Radius: 6.5

Gravity: 18.96 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 7.75 AU - 7.79 AU

Year: 13771 Days

Day: 25 Hours

Environment

Temp: -224 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 30,427,057 km

• M1: 80,783 km (0.116 R)
• M2: 313,258 km (0.111 R)
• M3: 565,480 km (0.101 R)
• M4: 1,526,048 km (0.086 R)
• M5: 2,050,837 km (0.102 R)
• M6: 3,841,374 km (0.073 R)
• M7: 7,931,530 km (0.098 R)
• M8: 10,869,332 km (0.086 R)
• M9: 11,400,854 km (0.108 R)
• M10: 12,198,958 km (0.044 R)
• M11: 13,099,388 km (0.06 R)
• M12: 17,146,908 km (0.084 R)
• M13: 18,857,709 km (0.039 R)
• M14: 19,366,641 km (0.11 R)
• M15: 23,577,672 km (0.099 R)
• M16: 24,869,898 km (0.113 R)
• M17: 26,736,131 km (0.111 R)
• M18: 35,520,518 km (0.117 R)
• M19: 37,882,370 km (0.065 R)
• M20: 38,964,860 km (0.109 R)
• M21: 41,475,860 km (0.044 R)
• M22: 59,562,542 km (0.087 R)
• M23: 61,579,720 km (0.032 R)

Asteroid Belt

Center: 8.04 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 75.8

Radius: 3.8

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 6.65 AU - 9.95 AU

Year: 15204 Days

Day: 18.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 30,427,057 km

• M1: 47,273 km (0.106 R)
• M2: 233,373 km (0.089 R)
• M3: 412,142 km (0.085 R)
• M4: 562,937 km (0.044 R)
• M5: 943,514 km (0.103 R)
• M6: 1,099,844 km (0.044 R)
• M7: 1,372,261 km (0.115 R)
• M8: 2,281,966 km (0.109 R)
• M9: 2,635,166 km (0.088 R)
• M10: 3,303,121 km (0.109 R)
• M11: 4,006,530 km (0.061 R)
• M12: 4,172,733 km (0.077 R)
• M13: 4,418,224 km (0.094 R)
• M14: 4,725,498 km (0.094 R)
• M15: 4,992,231 km (0.11 R)
• M16: 6,511,397 km (0.074 R)
• M17: 10,289,940 km (0.052 R)
• M18: 13,701,669 km (0.083 R)
• M19: 14,464,020 km (0.096 R)
• M20: 22,120,439 km (0.097 R)
• M21: 22,268,092 km (0.108 R)
• M22: 22,565,343 km (0.047 R)
• M23: 22,940,534 km (0.047 R)
• M24: 25,039,392 km (0.052 R)
• M25: 27,347,538 km (0.061 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: 336 - 16,825 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit