🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.87

Radius: 0.95

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.52 AU - 0.52 AU

Year: 242 Days

Day: 20.8 Hours

Environment

Temp: -115 °C

Axial Tilt: 19.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 50,399,780 km

• M1: 24,833 km (0.083 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.86

Radius: 1.72

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.49 AU - 0.61 AU

Year: 263 Days

Day: 39.1 Hours

Environment

Temp: -131 °C

Axial Tilt: 37.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168.8

Radius: 12.1

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.82 AU - 1.16 AU

Year: 636 Days

Day: 10.4 Hours

Environment

Temp: -151 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 50,399,780 km

• M1: 151,243 km (0.086 R)
• M2: 802,593 km (0.118 R)
• M3: 1,360,593 km (0.112 R)
• M4: 2,099,157 km (0.069 R)
• M5: 2,533,889 km (0.114 R)
• M6: 3,268,115 km (0.092 R)
• M7: 4,164,506 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988.2

Radius: 14.6

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.08 AU - 1.46 AU

Year: 924 Days

Day: 12.9 Hours

Environment

Temp: -178 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,399,780 km

• M1: 182,210 km (0.028 R)
• M2: 706,700 km (0.12 R)
• M3: 1,180,477 km (0.079 R)
• M4: 1,748,201 km (0.111 R)
• M5: 2,317,121 km (0.053 R)
• M6: 3,712,271 km (0.042 R)
• M7: 5,172,047 km (0.083 R)
• M8: 6,385,286 km (0.109 R)
• M9: 6,868,637 km (0.055 R)
• M10: 8,632,994 km (0.089 R)
• M11: 9,283,595 km (0.109 R)
• M12: 9,997,177 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 961.3

Radius: 9.2

Gravity: 11.36 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.4 AU - 2.08 AU

Year: 1482 Days

Day: 12.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 50,399,780 km

• M1: 115,041 km (0.03 R)
• M2: 407,953 km (0.092 R)
• M3: 748,438 km (0.036 R)
• M4: 1,134,849 km (0.097 R)
• M5: 1,847,683 km (0.087 R)
• M6: 2,568,745 km (0.057 R)
• M7: 3,193,017 km (0.113 R)
• M8: 3,600,522 km (0.049 R)
• M9: 4,286,278 km (0.099 R)
• M10: 4,620,181 km (0.051 R)
• M11: 5,774,328 km (0.097 R)
• M12: 6,109,128 km (0.084 R)
• M13: 7,579,975 km (0.104 R)
• M14: 8,040,437 km (0.078 R)
• M15: 8,549,967 km (0.037 R)
• M16: 12,383,562 km (0.116 R)
• M17: 12,740,503 km (0.097 R)
• M18: 13,063,634 km (0.092 R)

Asteroid Belt

Center: 2.08 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.8

Radius: 8.5

Gravity: 6.42 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 2.11 AU - 2.71 AU

Year: 2416 Days

Day: 12.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 50,399,780 km

• M1: 106,065 km (0.073 R)
• M2: 371,452 km (0.089 R)
• M3: 672,891 km (0.106 R)
• M4: 1,053,169 km (0.12 R)
• M5: 1,422,526 km (0.099 R)
• M6: 1,715,588 km (0.06 R)
• M7: 2,373,221 km (0.085 R)
• M8: 2,878,562 km (0.088 R)
• M9: 3,205,434 km (0.09 R)
• M10: 3,522,431 km (0.118 R)
• M11: 3,805,471 km (0.102 R)
• M12: 4,180,812 km (0.1 R)
• M13: 5,574,316 km (0.035 R)
• M14: 6,546,104 km (0.106 R)
• M15: 7,510,711 km (0.08 R)
• M16: 8,133,187 km (0.077 R)
• M17: 8,662,016 km (0.103 R)
• M18: 9,016,264 km (0.068 R)
• M19: 10,350,826 km (0.083 R)
• M20: 12,901,620 km (0.065 R)
• M21: 13,194,532 km (0.1 R)
• M22: 15,418,753 km (0.087 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 925.7

Radius: 9.4

Gravity: 10.48 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 3.64 AU - 5.88 AU

Year: 6705 Days

Day: 12 Hours

Environment

Temp: -210 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 50,399,780 km

• M1: 116,986 km (0.091 R)
• M2: 726,896 km (0.102 R)
• M3: 1,299,706 km (0.087 R)
• M4: 1,793,678 km (0.12 R)
• M5: 2,251,747 km (0.117 R)
• M6: 3,010,208 km (0.095 R)
• M7: 3,472,167 km (0.063 R)
• M8: 3,830,453 km (0.091 R)
• M9: 4,482,850 km (0.079 R)
• M10: 5,486,801 km (0.074 R)
• M11: 6,281,166 km (0.113 R)
• M12: 6,778,878 km (0.064 R)
• M13: 7,574,439 km (0.06 R)
• M14: 7,893,382 km (0.118 R)
• M15: 9,579,350 km (0.082 R)
• M16: 11,131,877 km (0.108 R)
• M17: 11,914,573 km (0.097 R)
• M18: 15,607,546 km (0.04 R)
• M19: 16,923,259 km (0.106 R)
• M20: 19,774,295 km (0.095 R)
• M21: 23,096,864 km (0.112 R)
• M22: 33,633,042 km (0.099 R)
• M23: 34,388,212 km (0.117 R)
• M24: 37,869,055 km (0.075 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.5

Radius: 11.8

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 5.26 AU - 5.34 AU

Year: 7878 Days

Day: 9.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 50,399,780 km

• M1: 149,299 km (0.103 R)
• M2: 531,222 km (0.115 R)
• M3: 1,613,263 km (0.095 R)
• M4: 2,563,509 km (0.047 R)
• M5: 3,105,203 km (0.091 R)
• M6: 4,273,263 km (0.11 R)
• M7: 4,744,048 km (0.112 R)
• M8: 5,614,258 km (0.091 R)
• M9: 6,153,858 km (0.096 R)
• M10: 6,926,830 km (0.105 R)
• M11: 10,718,987 km (0.061 R)
• M12: 12,989,134 km (0.109 R)
• M13: 15,913,473 km (0.103 R)
• M14: 19,251,152 km (0.077 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 875.5

Radius: 6.7

Gravity: 19.5 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 5.15 AU - 6.89 AU

Year: 9537 Days

Day: 18.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 50,399,780 km

• M1: 85,271 km (0.047 R)
• M2: 362,326 km (0.094 R)
• M3: 711,637 km (0.102 R)
• M4: 1,428,360 km (0.118 R)
• M5: 1,641,089 km (0.043 R)
• M6: 2,043,507 km (0.097 R)
• M7: 2,866,146 km (0.071 R)
• M8: 3,653,629 km (0.092 R)
• M9: 4,083,872 km (0.09 R)
• M10: 4,398,776 km (0.085 R)
• M11: 5,752,936 km (0.104 R)
• M12: 6,797,129 km (0.111 R)
• M13: 7,574,290 km (0.088 R)
• M14: 7,918,664 km (0.119 R)
• M15: 10,522,714 km (0.092 R)
• M16: 11,115,571 km (0.116 R)
• M17: 11,392,177 km (0.102 R)
• M18: 13,211,736 km (0.115 R)
• M19: 13,774,374 km (0.111 R)
• M20: 14,158,092 km (0.072 R)
• M21: 17,268,082 km (0.118 R)
• M22: 17,564,735 km (0.07 R)
• M23: 18,092,067 km (0.07 R)
• M24: 19,818,576 km (0.045 R)
• M25: 20,888,799 km (0.105 R)
• M26: 23,233,896 km (0.038 R)
• M27: 24,237,697 km (0.052 R)
• M28: 24,516,398 km (0.062 R)
• M29: 27,724,824 km (0.119 R)
• M30: 30,657,840 km (0.052 R)
• M31: 34,139,281 km (0.107 R)
• M32: 35,794,582 km (0.073 R)
• M33: 37,750,873 km (0.052 R)
• M34: 41,609,152 km (0.076 R)
• M35: 43,770,691 km (0.12 R)
• M36: 47,585,886 km (0.063 R)
• M37: 49,798,438 km (0.115 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: 275 - 13,848 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit