🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.5 AU - 0.68 AU

Year: 297 Days

Day: 46.4 Hours

Environment

Temp: -133 °C

Axial Tilt: 35.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 471.2

Radius: 10.1

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.69 AU - 0.87 AU

Year: 452 Days

Day: 13.8 Hours

Environment

Temp: -139 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,473,473 km

• M1: 125,961 km (0.079 R)
• M2: 441,463 km (0.07 R)
• M3: 837,598 km (0.04 R)
• M4: 1,269,338 km (0.115 R)
• M5: 2,098,858 km (0.066 R)
• M6: 2,860,461 km (0.053 R)
• M7: 3,448,680 km (0.042 R)
• M8: 4,155,081 km (0.102 R)
• M9: 5,090,217 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 296.9

Radius: 11.6

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.23 AU - 1.33 AU

Year: 950 Days

Day: 12.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 45,473,473 km

• M1: 144,362 km (0.059 R)
• M2: 531,820 km (0.047 R)
• M3: 938,278 km (0.111 R)
• M4: 1,330,374 km (0.092 R)
• M5: 1,901,389 km (0.104 R)
• M6: 2,322,806 km (0.112 R)
• M7: 2,740,184 km (0.063 R)
• M8: 3,434,917 km (0.074 R)
• M9: 4,154,632 km (0.108 R)
• M10: 4,839,940 km (0.095 R)
• M11: 5,562,946 km (0.049 R)
• M12: 6,415,953 km (0.098 R)
• M13: 6,926,531 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.3

Radius: 9

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 2.84 AU - 3.84 AU

Year: 4004 Days

Day: 8.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 45,473,473 km

• M1: 129,552 km (0.059 R)
• M2: 467,194 km (0.051 R)
• M3: 838,945 km (0.091 R)
• M4: 1,940,584 km (0.025 R)
• M5: 2,310,689 km (0.046 R)
• M6: 2,664,936 km (0.07 R)
• M7: 3,021,428 km (0.106 R)
• M8: 3,597,081 km (0.106 R)
• M9: 4,617,937 km (0.103 R)
• M10: 5,282,151 km (0.114 R)
• M11: 5,689,506 km (0.086 R)
• M12: 6,255,884 km (0.082 R)
• M13: 7,221,239 km (0.1 R)
• M14: 7,691,575 km (0.049 R)
• M15: 8,215,616 km (0.071 R)
• M16: 9,226,000 km (0.105 R)
• M17: 10,046,245 km (0.119 R)
• M18: 12,177,267 km (0.068 R)
• M19: 12,619,029 km (0.083 R)
• M20: 13,723,361 km (0.047 R)
• M21: 15,396,463 km (0.119 R)
• M22: 15,809,054 km (0.099 R)
• M23: 18,499,273 km (0.098 R)
• M24: 19,861,511 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 756.7

Radius: 9.8

Gravity: 7.88 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 3.71 AU - 3.97 AU

Year: 4936 Days

Day: 12.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 45,473,473 km

• M1: 121,922 km (0.068 R)
• M2: 511,774 km (0.068 R)
• M3: 937,679 km (0.106 R)
• M4: 1,964,669 km (0.084 R)
• M5: 2,505,166 km (0.101 R)
• M6: 2,893,672 km (0.117 R)
• M7: 3,281,728 km (0.07 R)
• M8: 3,929,188 km (0.09 R)
• M9: 4,357,188 km (0.117 R)
• M10: 4,789,675 km (0.035 R)
• M11: 5,139,734 km (0.089 R)
• M12: 6,043,754 km (0.07 R)
• M13: 7,327,603 km (0.051 R)
• M14: 8,317,193 km (0.092 R)
• M15: 10,515,384 km (0.087 R)
• M16: 11,390,083 km (0.077 R)
• M17: 11,918,163 km (0.104 R)
• M18: 12,563,229 km (0.112 R)
• M19: 16,263,233 km (0.061 R)
• M20: 17,369,061 km (0.114 R)
• M21: 17,684,862 km (0.08 R)
• M22: 18,328,133 km (0.072 R)
• M23: 25,078,288 km (0.111 R)
• M24: 26,220,019 km (0.054 R)
• M25: 27,652,418 km (0.051 R)
• M26: 29,852,554 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501.9

Radius: 12.9

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 5.1 AU - 6.08 AU

Year: 8670 Days

Day: 8.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 45,473,473 km

• M1: 162,762 km (0.111 R)
• M2: 750,084 km (0.034 R)
• M3: 1,348,924 km (0.083 R)
• M4: 1,767,200 km (0.118 R)
• M5: 2,273,888 km (0.118 R)
• M6: 2,977,446 km (0.1 R)
• M7: 3,516,448 km (0.101 R)
• M8: 3,994,114 km (0.119 R)
• M9: 4,407,303 km (0.088 R)
• M10: 4,906,511 km (0.119 R)
• M11: 5,855,111 km (0.097 R)
• M12: 7,638,467 km (0.039 R)
• M13: 8,654,985 km (0.118 R)
• M14: 9,441,271 km (0.119 R)
• M15: 11,106,296 km (0.093 R)
• M16: 13,639,885 km (0.084 R)
• M17: 14,106,630 km (0.064 R)
• M18: 18,234,484 km (0.116 R)
• M19: 19,526,711 km (0.118 R)
• M20: 22,293,075 km (0.092 R)
• M21: 31,030,189 km (0.087 R)
• M22: 34,997,524 km (0.056 R)
• M23: 36,429,026 km (0.102 R)
• M24: 38,823,340 km (0.059 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 610.7

Radius: 5

Gravity: 24.43 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 4.7 AU - 7.42 AU

Year: 9786 Days

Day: 18.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 45,473,473 km

• M1: 63,729 km (0.116 R)
• M2: 234,569 km (0.089 R)
• M3: 420,071 km (0.055 R)
• M4: 636,539 km (0.036 R)
• M5: 815,159 km (0.116 R)
• M6: 1,376,151 km (0.067 R)
• M7: 1,723,966 km (0.034 R)
• M8: 2,093,772 km (0.097 R)
• M9: 2,476,144 km (0.111 R)
• M10: 3,672,628 km (0.114 R)
• M11: 4,118,130 km (0.094 R)
• M12: 5,021,851 km (0.108 R)
• M13: 5,210,943 km (0.102 R)
• M14: 5,503,556 km (0.051 R)
• M15: 5,841,348 km (0.087 R)
• M16: 7,055,036 km (0.116 R)
• M17: 7,617,524 km (0.082 R)
• M18: 8,560,888 km (0.093 R)
• M19: 10,884,891 km (0.118 R)
• M20: 13,904,524 km (0.098 R)
• M21: 14,215,388 km (0.119 R)
• M22: 14,404,031 km (0.112 R)
• M23: 17,727,946 km (0.062 R)
• M24: 18,389,468 km (0.113 R)
• M25: 20,552,503 km (0.06 R)
• M26: 21,364,521 km (0.107 R)
• M27: 23,663,242 km (0.115 R)
• M28: 27,558,471 km (0.114 R)
• M29: 27,753,995 km (0.102 R)
• M30: 28,345,954 km (0.108 R)
• M31: 30,276,066 km (0.111 R)
• M32: 33,721,903 km (0.076 R)
• M33: 35,078,606 km (0.057 R)
• M34: 40,743,429 km (0.083 R)
• M35: 42,802,943 km (0.113 R)
• M36: 44,258,380 km (0.1 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 381 - 12,638 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit