🌌 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: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.5

Radius: 10

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.64 AU - 0.96 AU

Year: 469 Days

Day: 5.8 Hours

Environment

Temp: -138 °C

Axial Tilt: 60.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 29,851,850 km

• M1: 124,465 km (0.088 R)
• M2: 533,167 km (0.065 R)
• M3: 1,275,471 km (0.106 R)
• M4: 1,743,264 km (0.094 R)
• M5: 2,090,929 km (0.116 R)
• M6: 2,654,913 km (0.082 R)
• M7: 3,327,206 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 977.1

Radius: 13.5

Gravity: 5.36 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.99 AU - 1.31 AU

Year: 809 Days

Day: 12.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 29,851,850 km

• M1: 167,849 km (0.092 R)
• M2: 615,745 km (0.117 R)
• M3: 1,198,279 km (0.099 R)
• M4: 1,645,577 km (0.104 R)
• M5: 2,074,474 km (0.058 R)
• M6: 3,086,653 km (0.108 R)
• M7: 3,705,240 km (0.113 R)
• M8: 4,628,708 km (0.114 R)
• M9: 5,268,687 km (0.102 R)
• M10: 6,591,581 km (0.116 R)
• M11: 7,024,218 km (0.11 R)
• M12: 7,721,344 km (0.042 R)
• M13: 8,254,661 km (0.105 R)
• M14: 9,282,398 km (0.088 R)
• M15: 9,710,996 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.3

Radius: 11.1

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.05 AU - 1.33 AU

Year: 852 Days

Day: 7.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 29,851,850 km

• M1: 138,228 km (0.075 R)
• M2: 496,216 km (0.113 R)
• M3: 1,243,308 km (0.093 R)
• M4: 1,604,886 km (0.078 R)
• M5: 2,217,190 km (0.052 R)
• M6: 2,589,090 km (0.102 R)
• M7: 2,957,251 km (0.075 R)
• M8: 4,049,016 km (0.104 R)
• M9: 5,039,204 km (0.114 R)
• M10: 5,617,849 km (0.118 R)
• M11: 6,908,430 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.2

Radius: 8.9

Gravity: 9.26 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.13 AU - 1.87 AU

Year: 1205 Days

Day: 12.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 29,851,850 km

• M1: 110,702 km (0.096 R)
• M2: 396,734 km (0.097 R)
• M3: 1,033,422 km (0.054 R)
• M4: 1,539,512 km (0.046 R)
• M5: 1,956,291 km (0.082 R)
• M6: 2,495,741 km (0.1 R)
• M7: 3,188,679 km (0.097 R)
• M8: 3,564,917 km (0.117 R)
• M9: 4,004,286 km (0.066 R)
• M10: 4,874,647 km (0.049 R)
• M11: 5,191,345 km (0.049 R)
• M12: 5,500,564 km (0.119 R)
• M13: 5,778,667 km (0.11 R)
• M14: 7,623,208 km (0.078 R)
• M15: 9,674,943 km (0.082 R)
• M16: 10,304,750 km (0.104 R)
• M17: 10,827,894 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 662

Radius: 11.4

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 2.99 AU - 3.05 AU

Year: 3443 Days

Day: 8.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 29,851,850 km

• M1: 148,700 km (0.092 R)
• M2: 543,788 km (0.118 R)
• M3: 965,654 km (0.119 R)
• M4: 1,371,663 km (0.1 R)
• M5: 1,736,382 km (0.063 R)
• M6: 2,453,106 km (0.113 R)
• M7: 2,814,235 km (0.081 R)
• M8: 3,625,504 km (0.111 R)
• M9: 4,140,121 km (0.106 R)
• M10: 4,917,880 km (0.083 R)
• M11: 6,264,112 km (0.055 R)
• M12: 6,854,425 km (0.051 R)
• M13: 7,481,390 km (0.119 R)
• M14: 9,068,922 km (0.081 R)
• M15: 9,941,975 km (0.11 R)
• M16: 10,459,734 km (0.111 R)
• M17: 12,713,276 km (0.049 R)
• M18: 14,002,959 km (0.109 R)
• M19: 15,116,715 km (0.102 R)
• M20: 15,855,579 km (0.098 R)
• M21: 18,217,430 km (0.076 R)
• M22: 19,176,053 km (0.084 R)
• M23: 20,104,757 km (0.116 R)
• M24: 22,321,049 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403.9

Radius: 14.3

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.6 AU - 4.06 AU

Year: 3986 Days

Day: 5.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 29,851,850 km

• M1: 177,872 km (0.08 R)
• M2: 646,861 km (0.072 R)
• M3: 1,439,132 km (0.114 R)
• M4: 3,179,104 km (0.108 R)
• M5: 4,500,802 km (0.098 R)
• M6: 5,838,356 km (0.108 R)
• M7: 6,701,386 km (0.1 R)
• M8: 8,103,866 km (0.102 R)
• M9: 10,151,562 km (0.094 R)
• M10: 11,109,587 km (0.118 R)
• M11: 13,252,427 km (0.072 R)
• M12: 14,250,394 km (0.111 R)
• M13: 15,451,665 km (0.057 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 428.4

Radius: 4.7

Gravity: 19.39 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 5.83 AU - 9.57 AU

Year: 14017 Days

Day: 24.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 29,851,850 km

• M1: 58,493 km (0.068 R)
• M2: 218,114 km (0.113 R)
• M3: 388,506 km (0.12 R)
• M4: 803,341 km (0.081 R)
• M5: 1,056,610 km (0.102 R)
• M6: 1,322,146 km (0.07 R)
• M7: 1,754,633 km (0.104 R)
• M8: 1,918,144 km (0.104 R)
• M9: 2,333,428 km (0.096 R)
• M10: 2,806,157 km (0.098 R)
• M11: 3,100,416 km (0.076 R)
• M12: 3,389,888 km (0.086 R)
• M13: 4,857,144 km (0.057 R)
• M14: 5,247,744 km (0.099 R)
• M15: 6,545,804 km (0.074 R)
• M16: 6,702,134 km (0.089 R)
• M17: 7,022,274 km (0.057 R)
• M18: 8,920,222 km (0.097 R)
• M19: 12,638,327 km (0.095 R)
• M20: 13,250,931 km (0.102 R)
• M21: 13,501,357 km (0.03 R)
• M22: 14,011,935 km (0.089 R)
• M23: 16,111,691 km (0.119 R)
• M24: 16,613,442 km (0.092 R)
• M25: 17,422,617 km (0.072 R)
• M26: 17,799,005 km (0.111 R)
• M27: 20,670,686 km (0.109 R)
• M28: 20,838,684 km (0.112 R)
• M29: 21,433,934 km (0.099 R)
• M30: 23,197,244 km (0.118 R)
• M31: 26,020,006 km (0.114 R)
• M32: 26,215,980 km (0.093 R)
• M33: 27,311,186 km (0.108 R)
• M34: 28,540,431 km (0.067 R)
• M35: 28,958,258 km (0.117 R)
• M36: 29,274,359 km (0.102 R)
• M37: 29,486,339 km (0.111 R)
• M38: 29,699,216 km (0.05 R)
• M39: 33,943,607 km (0.096 R)
• M40: 35,603,994 km (0.065 R)
• M41: 39,471,697 km (0.117 R)
• M42: 44,443,283 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 82.6

Radius: 6.6

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 7.46 AU - 8.04 AU

Year: 14153 Days

Day: 21 Hours

Environment

Temp: -229 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 29,851,850 km

• M1: 144,512 km (0.107 R)
• M2: 800,648 km (0.116 R)
• M3: 2,148,824 km (0.073 R)
• M4: 2,498,883 km (0.115 R)
• M5: 3,055,985 km (0.027 R)
• M6: 3,353,835 km (0.061 R)
• M7: 4,539,248 km (0.081 R)
• M8: 5,800,807 km (0.097 R)
• M9: 7,632,783 km (0.099 R)
• M10: 8,718,863 km (0.048 R)
• M11: 11,854,434 km (0.097 R)
• M12: 12,945,003 km (0.094 R)
• M13: 15,153,367 km (0.112 R)
• M14: 16,436,168 km (0.102 R)
• M15: 20,507,923 km (0.041 R)
• M16: 20,998,156 km (0.06 R)
• M17: 27,336,318 km (0.085 R)
• M18: 29,673,635 km (0.115 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 473 - 13,260 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit