🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40.1

Radius: 14.3

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.72 AU - 1 AU

Year: 523 Days

Day: 5.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 66,280,085 km

• M1: 178,021 km (0.054 R)
• M2: 636,539 km (0.037 R)
• M3: 1,797,269 km (0.073 R)
• M4: 2,460,885 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.9

Radius: 9.9

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.79 AU - 0.93 AU

Year: 523 Days

Day: 5.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,280,085 km

• M1: 123,119 km (0.116 R)
• M2: 485,146 km (0.1 R)
• M3: 851,062 km (0.064 R)
• M4: 1,215,632 km (0.027 R)
• M5: 1,732,643 km (0.102 R)
• M6: 2,280,470 km (0.118 R)
• M7: 2,787,308 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.9

Radius: 10.2

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.98 AU - 1.56 AU

Year: 939 Days

Day: 7.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 66,280,085 km

• M1: 126,859 km (0.074 R)
• M2: 444,904 km (0.109 R)
• M3: 769,382 km (0.074 R)
• M4: 1,358,498 km (0.095 R)
• M5: 1,703,770 km (0.103 R)
• M6: 2,576,375 km (0.034 R)
• M7: 2,972,360 km (0.104 R)
• M8: 3,696,264 km (0.081 R)
• M9: 4,129,200 km (0.05 R)
• M10: 4,817,949 km (0.114 R)
• M11: 5,232,634 km (0.072 R)
• M12: 5,581,347 km (0.074 R)
• M13: 6,345,343 km (0.087 R)
• M14: 7,156,313 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 749.4

Radius: 8.4

Gravity: 10.62 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.55 AU - 1.99 AU

Year: 1545 Days

Day: 8.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,280,085 km

• M1: 104,419 km (0.036 R)
• M2: 489,335 km (0.098 R)
• M3: 1,250,339 km (0.089 R)
• M4: 2,010,147 km (0.063 R)
• M5: 3,436,113 km (0.104 R)
• M6: 3,752,812 km (0.111 R)
• M7: 4,052,906 km (0.094 R)
• M8: 4,761,551 km (0.084 R)
• M9: 7,250,410 km (0.082 R)
• M10: 8,321,980 km (0.083 R)
• M11: 8,957,771 km (0.081 R)
• M12: 10,190,009 km (0.107 R)
• M13: 10,706,121 km (0.105 R)
• M14: 12,475,864 km (0.077 R)
• M15: 13,066,776 km (0.066 R)
• M16: 13,389,458 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842.2

Radius: 10.1

Gravity: 8.26 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 3.72 AU - 4.54 AU

Year: 5506 Days

Day: 10.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,280,085 km

• M1: 125,662 km (0.098 R)
• M2: 1,044,343 km (0.092 R)
• M3: 5,014,221 km (0.094 R)
• M4: 6,033,133 km (0.062 R)
• M5: 6,762,422 km (0.096 R)
• M6: 8,003,935 km (0.095 R)
• M7: 8,476,515 km (0.107 R)
• M8: 9,220,315 km (0.062 R)
• M9: 11,564,364 km (0.07 R)
• M10: 12,636,083 km (0.087 R)
• M11: 13,061,390 km (0.096 R)
• M12: 14,452,201 km (0.078 R)
• M13: 14,800,166 km (0.05 R)
• M14: 16,688,241 km (0.096 R)
• M15: 18,526,948 km (0.094 R)
• M16: 19,778,035 km (0.111 R)
• M17: 22,370,417 km (0.106 R)
• M18: 23,309,143 km (0.117 R)
• M19: 25,432,835 km (0.106 R)
• M20: 27,151,864 km (0.116 R)
• M21: 28,581,870 km (0.074 R)
• M22: 30,249,886 km (0.067 R)
• M23: 31,883,944 km (0.064 R)
• M24: 33,778,900 km (0.073 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 674.5

Radius: 4.1

Gravity: 40.12 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 6.18 AU - 10.16 AU

Year: 15319 Days

Day: 21.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 66,280,085 km

• M1: 54,154 km (0.087 R)
• M2: 345,870 km (0.053 R)
• M3: 485,295 km (0.043 R)
• M4: 801,545 km (0.059 R)
• M5: 1,005,148 km (0.119 R)
• M6: 1,216,081 km (0.103 R)
• M7: 1,470,996 km (0.046 R)
• M8: 2,719,540 km (0.117 R)
• M9: 3,310,601 km (0.032 R)
• M10: 4,576,648 km (0.064 R)
• M11: 4,980,712 km (0.029 R)
• M12: 5,227,249 km (0.109 R)
• M13: 5,706,411 km (0.098 R)
• M14: 6,295,078 km (0.088 R)
• M15: 7,546,315 km (0.066 R)
• M16: 7,966,087 km (0.079 R)
• M17: 9,424,666 km (0.066 R)
• M18: 11,290,600 km (0.104 R)
• M19: 12,598,235 km (0.093 R)
• M20: 16,963,202 km (0.086 R)
• M21: 18,338,156 km (0.109 R)
• M22: 18,588,283 km (0.092 R)
• M23: 19,698,599 km (0.078 R)
• M24: 19,873,180 km (0.064 R)
• M25: 20,852,298 km (0.098 R)
• M26: 21,216,120 km (0.088 R)
• M27: 21,399,676 km (0.062 R)
• M28: 21,956,479 km (0.056 R)
• M29: 23,783,817 km (0.068 R)
• M30: 32,349,492 km (0.1 R)
• M31: 32,959,702 km (0.076 R)
• M32: 36,125,941 km (0.052 R)
• M33: 38,663,719 km (0.097 R)
• M34: 39,489,051 km (0.073 R)
• M35: 43,941,682 km (0.025 R)
• M36: 46,519,851 km (0.066 R)
• M37: 46,985,101 km (0.084 R)
• M38: 53,998,099 km (0.064 R)
• M39: 57,129,632 km (0.076 R)
• M40: 58,199,855 km (0.12 R)
• M41: 62,050,803 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 641.3

Radius: 7.2

Gravity: 12.37 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 8.41 AU - 8.97 AU

Year: 16805 Days

Day: 17 Hours

Environment

Temp: -238 °C

Axial Tilt: 42.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 66,280,085 km

• M1: 89,609 km (0.062 R)
• M2: 392,246 km (0.092 R)
• M3: 729,140 km (0.101 R)
• M4: 1,496,278 km (0.108 R)
• M5: 1,912,609 km (0.106 R)
• M6: 4,076,542 km (0.107 R)
• M7: 4,684,957 km (0.112 R)
• M8: 5,315,512 km (0.101 R)
• M9: 5,883,086 km (0.118 R)
• M10: 7,734,659 km (0.035 R)
• M11: 10,512,242 km (0.083 R)
• M12: 12,870,952 km (0.06 R)
• M13: 14,674,504 km (0.052 R)
• M14: 16,326,962 km (0.056 R)
• M15: 17,359,786 km (0.069 R)
• M16: 18,435,394 km (0.101 R)
• M17: 19,730,912 km (0.116 R)
• M18: 20,175,966 km (0.077 R)
• M19: 20,718,856 km (0.118 R)
• M20: 21,178,571 km (0.066 R)
• M21: 21,645,166 km (0.042 R)
• M22: 22,502,213 km (0.075 R)
• M23: 22,988,106 km (0.071 R)
• M24: 24,487,526 km (0.104 R)
• M25: 32,230,861 km (0.066 R)
• M26: 35,396,352 km (0.079 R)
• M27: 43,226,903 km (0.037 R)
• M28: 43,977,436 km (0.097 R)
• M29: 46,594,650 km (0.101 R)
• M30: 48,988,665 km (0.086 R)
• M31: 57,198,895 km (0.098 R)
• M32: 59,570,471 km (0.098 R)
• M33: 59,941,024 km (0.065 R)
• M34: 61,817,131 km (0.043 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 354 - 17,871 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit