🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.5

Radius: 14.4

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.83 AU - 1.35 AU

Year: 772 Days

Day: 10 Hours

Environment

Temp: -177 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,268,735 km

• M1: 179,069 km (0.09 R)
• M2: 720,164 km (0.052 R)
• M3: 1,844,841 km (0.074 R)
• M4: 2,300,815 km (0.109 R)
• M5: 2,951,416 km (0.1 R)
• M6: 3,472,167 km (0.085 R)
• M7: 3,986,484 km (0.062 R)
• M8: 4,671,194 km (0.045 R)
• M9: 5,792,280 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.5

Radius: 13.9

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 2.11 AU - 2.21 AU

Year: 2153 Days

Day: 12.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 58,268,735 km

• M1: 172,935 km (0.058 R)
• M2: 708,496 km (0.097 R)
• M3: 1,152,352 km (0.037 R)
• M4: 1,666,670 km (0.054 R)
• M5: 3,090,393 km (0.049 R)
• M6: 3,566,413 km (0.086 R)
• M7: 4,382,619 km (0.051 R)
• M8: 5,027,685 km (0.076 R)
• M9: 7,484,980 km (0.105 R)
• M10: 9,159,878 km (0.101 R)
• M11: 11,072,636 km (0.067 R)
• M12: 11,571,844 km (0.081 R)
• M13: 13,398,584 km (0.058 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.6

Radius: 13.6

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 3.18 AU - 3.3 AU

Year: 3956 Days

Day: 11.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 58,268,735 km

• M1: 182,809 km (0.083 R)
• M2: 2,174,106 km (0.076 R)
• M3: 2,601,657 km (0.099 R)
• M4: 5,234,878 km (0.033 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.4

Radius: 13.5

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 3.49 AU - 4.81 AU

Year: 5734 Days

Day: 11.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 58,268,735 km

• M1: 167,998 km (0.099 R)
• M2: 870,809 km (0.085 R)
• M3: 1,416,991 km (0.083 R)
• M4: 3,520,038 km (0.109 R)
• M5: 4,147,003 km (0.12 R)
• M6: 5,022,300 km (0.111 R)
• M7: 7,367,097 km (0.071 R)
• M8: 8,947,449 km (0.051 R)
• M9: 9,443,665 km (0.079 R)
• M10: 16,865,814 km (0.094 R)
• M11: 23,088,935 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.9

Radius: 10.3

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 4.33 AU - 4.55 AU

Year: 6345 Days

Day: 6.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 58,268,735 km

• M1: 130,449 km (0.092 R)
• M2: 539,001 km (0.103 R)
• M3: 897,138 km (0.095 R)
• M4: 2,078,214 km (0.043 R)
• M5: 2,413,462 km (0.083 R)
• M6: 2,966,825 km (0.082 R)
• M7: 3,999,200 km (0.095 R)
• M8: 5,479,022 km (0.109 R)
• M9: 9,116,045 km (0.04 R)
• M10: 10,502,070 km (0.12 R)
• M11: 11,314,685 km (0.059 R)
• M12: 13,167,455 km (0.072 R)
• M13: 14,112,315 km (0.103 R)
• M14: 15,670,975 km (0.086 R)
• M15: 17,965,657 km (0.066 R)
• M16: 24,901,164 km (0.056 R)
• M17: 25,455,723 km (0.099 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 318.8

Radius: 7

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 5.75 AU - 6.53 AU

Year: 10319 Days

Day: 20.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 58,268,735 km

• M1: 92,751 km (0.078 R)
• M2: 367,712 km (0.069 R)
• M3: 3,033,396 km (0.071 R)
• M4: 4,539,398 km (0.114 R)
• M5: 8,384,811 km (0.117 R)
• M6: 12,039,337 km (0.067 R)
• M7: 14,508,899 km (0.06 R)
• M8: 15,862,012 km (0.116 R)
• M9: 18,046,440 km (0.042 R)
• M10: 19,174,408 km (0.106 R)
• M11: 21,030,020 km (0.083 R)
• M12: 22,358,000 km (0.067 R)
• M13: 23,410,720 km (0.085 R)
• M14: 28,138,312 km (0.051 R)
• M15: 30,922,329 km (0.063 R)
• M16: 32,329,895 km (0.076 R)
• M17: 33,256,953 km (0.063 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 346.7

Radius: 4.4

Gravity: 17.91 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 5.03 AU - 8.11 AU

Year: 11422 Days

Day: 16.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 58,268,735 km

• M1: 56,548 km (0.068 R)
• M2: 209,886 km (0.045 R)
• M3: 1,019,659 km (0.104 R)
• M4: 1,707,660 km (0.094 R)
• M5: 2,098,409 km (0.096 R)
• M6: 2,270,596 km (0.096 R)
• M7: 2,415,108 km (0.105 R)
• M8: 3,752,812 km (0.067 R)
• M9: 6,473,848 km (0.05 R)
• M10: 8,020,839 km (0.071 R)
• M11: 11,136,514 km (0.038 R)
• M12: 11,344,605 km (0.112 R)
• M13: 11,502,431 km (0.101 R)
• M14: 12,093,492 km (0.104 R)
• M15: 12,424,253 km (0.093 R)
• M16: 15,227,717 km (0.06 R)
• M17: 18,353,415 km (0.1 R)
• M18: 23,038,371 km (0.064 R)
• M19: 27,127,479 km (0.112 R)
• M20: 28,948,684 km (0.093 R)
• M21: 29,639,826 km (0.048 R)
• M22: 30,849,923 km (0.076 R)
• M23: 31,363,792 km (0.089 R)
• M24: 33,260,693 km (0.111 R)
• M25: 35,568,988 km (0.102 R)
• M26: 38,335,053 km (0.088 R)
• M27: 40,013,092 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 260.4

Radius: 5.4

Gravity: 8.93 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 7.67 AU - 12.51 AU

Year: 21738 Days

Day: 15.7 Hours

Environment

Temp: -243 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 58,268,735 km

• M1: 67,169 km (0.113 R)
• M2: 267,481 km (0.09 R)
• M3: 479,162 km (0.108 R)
• M4: 686,953 km (0.026 R)
• M5: 892,052 km (0.107 R)
• M6: 1,101,938 km (0.078 R)
• M7: 1,414,448 km (0.03 R)
• M8: 2,354,670 km (0.108 R)
• M9: 2,897,262 km (0.099 R)
• M10: 4,472,228 km (0.079 R)
• M11: 4,924,313 km (0.082 R)
• M12: 5,300,402 km (0.078 R)
• M13: 6,423,733 km (0.107 R)
• M14: 7,342,413 km (0.091 R)
• M15: 9,079,843 km (0.08 R)
• M16: 10,845,696 km (0.086 R)
• M17: 12,265,380 km (0.064 R)
• M18: 13,671,450 km (0.104 R)
• M19: 14,969,511 km (0.043 R)
• M20: 16,723,995 km (0.067 R)
• M21: 18,692,404 km (0.079 R)
• M22: 21,520,402 km (0.086 R)
• M23: 25,616,242 km (0.1 R)
• M24: 29,643,416 km (0.07 R)
• M25: 30,769,290 km (0.078 R)
• M26: 32,867,251 km (0.115 R)
• M27: 36,444,734 km (0.092 R)
• M28: 39,325,690 km (0.065 R)
• M29: 43,926,124 km (0.106 R)
• M30: 45,240,341 km (0.086 R)
• M31: 54,511,370 km (0.082 R)
• M32: 55,013,869 km (0.102 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 458 - 10,997 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit