🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.7

Radius: 12.4

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.45 AU - 0.71 AU

Year: 305 Days

Day: 14.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 38,745,147 km

• M1: 154,385 km (0.112 R)
• M2: 563,086 km (0.065 R)
• M3: 1,000,959 km (0.061 R)
• M4: 1,402,330 km (0.117 R)
• M5: 1,844,991 km (0.106 R)
• M6: 2,333,278 km (0.035 R)
• M7: 3,050,600 km (0.108 R)
• M8: 3,542,029 km (0.096 R)
• M9: 3,933,526 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 365

Radius: 12.2

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.54 AU - 0.68 AU

Year: 329 Days

Day: 6.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 38,745,147 km

• M1: 151,692 km (0.111 R)
• M2: 540,048 km (0.07 R)
• M3: 1,148,164 km (0.107 R)
• M4: 1,675,347 km (0.116 R)
• M5: 2,298,422 km (0.066 R)
• M6: 2,722,232 km (0.078 R)
• M7: 3,493,709 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 529

Radius: 14.5

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.69 AU - 0.81 AU

Year: 448 Days

Day: 11.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 38,745,147 km

• M1: 180,415 km (0.037 R)
• M2: 785,389 km (0.082 R)
• M3: 1,283,101 km (0.109 R)
• M4: 2,030,043 km (0.077 R)
• M5: 2,482,128 km (0.101 R)
• M6: 2,950,220 km (0.077 R)
• M7: 3,827,162 km (0.118 R)
• M8: 4,886,614 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 792.2

Radius: 13.4

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.66 AU - 1.02 AU

Year: 531 Days

Day: 12.9 Hours

Environment

Temp: -174 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 38,745,147 km

• M1: 167,101 km (0.092 R)
• M2: 655,837 km (0.064 R)
• M3: 1,087,876 km (0.063 R)
• M4: 1,549,984 km (0.093 R)
• M5: 1,987,258 km (0.054 R)
• M6: 2,418,549 km (0.118 R)
• M7: 2,935,559 km (0.038 R)
• M8: 4,009,971 km (0.098 R)
• M9: 4,522,643 km (0.051 R)
• M10: 5,112,358 km (0.111 R)
• M11: 5,681,129 km (0.085 R)
• M12: 6,330,383 km (0.1 R)
• M13: 6,884,943 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.6

Radius: 8.5

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.96 AU - 1.3 AU

Year: 829 Days

Day: 10.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 38,745,147 km

• M1: 105,766 km (0.099 R)
• M2: 588,219 km (0.071 R)
• M3: 990,936 km (0.048 R)
• M4: 1,317,359 km (0.112 R)
• M5: 1,664,276 km (0.099 R)
• M6: 2,544,660 km (0.084 R)
• M7: 2,828,148 km (0.066 R)
• M8: 4,099,580 km (0.102 R)
• M9: 4,938,375 km (0.036 R)
• M10: 5,236,673 km (0.053 R)
• M11: 5,800,807 km (0.064 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491.1

Radius: 9.8

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 3.06 AU - 4.1 AU

Year: 4676 Days

Day: 10.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 42.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 38,745,147 km

• M1: 121,922 km (0.084 R)
• M2: 858,841 km (0.042 R)
• M3: 1,302,100 km (0.119 R)
• M4: 2,450,114 km (0.081 R)
• M5: 2,878,562 km (0.09 R)
• M6: 3,317,782 km (0.041 R)
• M7: 3,801,431 km (0.082 R)
• M8: 4,127,256 km (0.057 R)
• M9: 5,458,378 km (0.109 R)
• M10: 8,353,096 km (0.048 R)
• M11: 10,886,536 km (0.116 R)
• M12: 12,516,854 km (0.064 R)
• M13: 13,740,864 km (0.054 R)
• M14: 14,935,702 km (0.091 R)
• M15: 20,678,016 km (0.103 R)
• M16: 22,666,022 km (0.106 R)
• M17: 24,404,948 km (0.07 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 288

Radius: 12

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.91 AU - 4.81 AU

Year: 5235 Days

Day: 10.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 65.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 38,745,147 km

• M1: 162,912 km (0.077 R)
• M2: 605,423 km (0.116 R)
• M3: 989,590 km (0.078 R)
• M4: 1,758,224 km (0.046 R)
• M5: 2,479,286 km (0.074 R)
• M6: 2,994,201 km (0.102 R)
• M7: 3,370,290 km (0.055 R)
• M8: 4,262,791 km (0.064 R)
• M9: 4,908,755 km (0.103 R)
• M10: 7,696,212 km (0.094 R)
• M11: 8,944,008 km (0.079 R)
• M12: 9,886,923 km (0.098 R)
• M13: 10,936,502 km (0.113 R)
• M14: 11,618,519 km (0.038 R)
• M15: 12,283,481 km (0.053 R)
• M16: 14,131,464 km (0.072 R)
• M17: 16,158,216 km (0.11 R)
• M18: 22,228,897 km (0.107 R)
• M19: 22,908,969 km (0.044 R)

Asteroid Belt

Center: 5.64 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 7.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 753.5

Radius: 7.7

Gravity: 12.71 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 6.2 AU - 8.64 AU

Year: 13951 Days

Day: 22.5 Hours

Environment

Temp: -230 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 38,745,147 km

• M1: 96,191 km (0.073 R)
• M2: 667,057 km (0.11 R)
• M3: 1,106,575 km (0.097 R)
• M4: 2,232,898 km (0.07 R)
• M5: 3,046,261 km (0.057 R)
• M6: 3,588,404 km (0.076 R)
• M7: 3,839,878 km (0.093 R)
• M8: 4,731,332 km (0.054 R)
• M9: 5,208,250 km (0.079 R)
• M10: 6,021,763 km (0.09 R)
• M11: 6,378,105 km (0.07 R)
• M12: 7,308,454 km (0.11 R)
• M13: 8,087,111 km (0.112 R)
• M14: 9,647,716 km (0.097 R)
• M15: 12,571,906 km (0.105 R)
• M16: 13,687,607 km (0.116 R)
• M17: 14,027,942 km (0.111 R)
• M18: 15,083,056 km (0.098 R)
• M19: 17,271,224 km (0.091 R)
• M20: 17,829,523 km (0.075 R)
• M21: 19,576,677 km (0.075 R)
• M22: 20,359,373 km (0.1 R)
• M23: 21,894,247 km (0.05 R)
• M24: 23,215,046 km (0.071 R)
• M25: 27,495,191 km (0.095 R)
• M26: 27,928,426 km (0.114 R)
• M27: 30,739,670 km (0.117 R)
• M28: 33,981,755 km (0.098 R)
• M29: 38,379,633 km (0.066 R)
• M30: 39,604,241 km (0.114 R)
• M31: 47,039,854 km (0.047 R)
• M32: 51,165,763 km (0.047 R)
• M33: 51,656,743 km (0.101 R)
• M34: 52,981,582 km (0.107 R)
• M35: 58,507,877 km (0.085 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 72.4

Radius: 7.7

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 8.59 AU - 11.73 AU

Year: 22354 Days

Day: 21.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 38,745,147 km

• M1: 103,372 km (0.093 R)
• M2: 636,689 km (0.109 R)
• M3: 2,150,320 km (0.104 R)
• M4: 2,701,438 km (0.044 R)
• M5: 3,808,911 km (0.063 R)
• M6: 5,162,623 km (0.079 R)
• M7: 6,526,058 km (0.087 R)
• M8: 7,993,164 km (0.075 R)
• M9: 10,179,986 km (0.101 R)
• M10: 10,466,765 km (0.108 R)
• M11: 15,694,013 km (0.076 R)
• M12: 18,366,430 km (0.112 R)
• M13: 19,007,008 km (0.075 R)
• M14: 25,197,069 km (0.106 R)
• M15: 33,758,704 km (0.119 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 265 - 11,958 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit