🌌 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 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 233.7

Radius: 13.4

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.53 AU - 0.65 AU

Year: 319 Days

Day: 5.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 51,568,442 km

• M1: 166,652 km (0.106 R)
• M2: 645,664 km (0.081 R)
• M3: 1,094,757 km (0.069 R)
• M4: 1,565,392 km (0.098 R)
• M5: 2,090,032 km (0.081 R)
• M6: 3,365,802 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 296.8

Radius: 14.5

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.7 AU - 0.8 AU

Year: 457 Days

Day: 8.7 Hours

Environment

Temp: -169 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 51,568,442 km

• M1: 180,265 km (0.111 R)
• M2: 701,016 km (0.107 R)
• M3: 1,293,722 km (0.116 R)
• M4: 1,747,303 km (0.091 R)
• M5: 2,546,754 km (0.102 R)
• M6: 3,092,487 km (0.081 R)
• M7: 3,796,944 km (0.109 R)
• M8: 4,501,101 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 799

Radius: 9

Gravity: 9.86 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.79 AU - 1.11 AU

Year: 651 Days

Day: 11.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 51,568,442 km

• M1: 111,899 km (0.038 R)
• M2: 428,448 km (0.116 R)
• M3: 708,496 km (0.094 R)
• M4: 1,036,264 km (0.09 R)
• M5: 1,921,734 km (0.11 R)
• M6: 2,302,910 km (0.026 R)
• M7: 2,945,432 km (0.053 R)
• M8: 3,309,254 km (0.04 R)
• M9: 3,702,846 km (0.083 R)
• M10: 4,022,088 km (0.06 R)
• M11: 4,359,581 km (0.066 R)
• M12: 4,699,468 km (0.048 R)
• M13: 5,127,168 km (0.098 R)
• M14: 5,543,349 km (0.117 R)
• M15: 6,885,840 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 555.2

Radius: 13.1

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.28 AU - 1.78 AU

Year: 1330 Days

Day: 11.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,568,442 km

• M1: 162,912 km (0.06 R)
• M2: 667,954 km (0.047 R)
• M3: 1,768,247 km (0.079 R)
• M4: 2,223,024 km (0.097 R)
• M5: 2,886,491 km (0.106 R)
• M6: 3,494,457 km (0.113 R)
• M7: 4,290,317 km (0.113 R)
• M8: 6,634,366 km (0.082 R)
• M9: 7,416,015 km (0.071 R)
• M10: 9,163,169 km (0.111 R)
• M11: 11,271,452 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 743.5

Radius: 11.4

Gravity: 5.72 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.51 AU - 1.97 AU

Year: 1613 Days

Day: 5.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 51,568,442 km

• M1: 141,819 km (0.081 R)
• M2: 615,446 km (0.113 R)
• M3: 986,299 km (0.115 R)
• M4: 1,424,321 km (0.083 R)
• M5: 2,443,681 km (0.053 R)
• M6: 2,977,147 km (0.053 R)
• M7: 3,359,071 km (0.072 R)
• M8: 3,773,905 km (0.102 R)
• M9: 4,509,478 km (0.075 R)
• M10: 6,438,094 km (0.063 R)
• M11: 8,112,992 km (0.103 R)
• M12: 8,467,987 km (0.067 R)
• M13: 9,020,153 km (0.075 R)
• M14: 9,926,866 km (0.104 R)
• M15: 10,471,552 km (0.093 R)
• M16: 11,072,187 km (0.028 R)
• M17: 12,694,127 km (0.117 R)
• M18: 14,297,368 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543.8

Radius: 9.6

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.61 AU - 2.35 AU

Year: 1958 Days

Day: 10.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 51,568,442 km

• M1: 119,977 km (0.079 R)
• M2: 520,301 km (0.066 R)
• M3: 1,013,825 km (0.107 R)
• M4: 1,527,245 km (0.097 R)
• M5: 2,603,302 km (0.084 R)
• M6: 2,942,141 km (0.073 R)
• M7: 3,939,211 km (0.12 R)
• M8: 4,525,485 km (0.1 R)
• M9: 6,039,266 km (0.09 R)
• M10: 6,793,090 km (0.09 R)
• M11: 7,165,588 km (0.089 R)
• M12: 9,270,281 km (0.052 R)
• M13: 10,100,699 km (0.111 R)
• M14: 11,052,440 km (0.103 R)
• M15: 11,568,852 km (0.06 R)
• M16: 13,133,347 km (0.027 R)
• M17: 13,754,926 km (0.059 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 475

Radius: 10.8

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 2.41 AU - 2.81 AU

Year: 2964 Days

Day: 8.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 51,568,442 km

• M1: 134,488 km (0.061 R)
• M2: 819,647 km (0.071 R)
• M3: 1,323,792 km (0.117 R)
• M4: 1,729,501 km (0.092 R)
• M5: 2,337,467 km (0.036 R)
• M6: 2,828,597 km (0.072 R)
• M7: 3,232,810 km (0.119 R)
• M8: 5,300,701 km (0.1 R)
• M9: 5,867,827 km (0.041 R)
• M10: 6,640,201 km (0.115 R)
• M11: 7,152,873 km (0.086 R)
• M12: 8,129,447 km (0.099 R)
• M13: 10,496,983 km (0.095 R)
• M14: 12,422,906 km (0.092 R)
• M15: 12,982,702 km (0.081 R)
• M16: 13,514,372 km (0.032 R)
• M17: 15,440,894 km (0.117 R)
• M18: 16,962,005 km (0.062 R)
• M19: 17,384,021 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 237.6

Radius: 6.7

Gravity: 5.29 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 8.98 AU - 9 AU

Year: 18947 Days

Day: 15.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 51,568,442 km

• M1: 84,224 km (0.098 R)
• M2: 349,909 km (0.085 R)
• M3: 573,857 km (0.065 R)
• M4: 1,262,606 km (0.089 R)
• M5: 1,602,343 km (0.098 R)
• M6: 2,036,326 km (0.1 R)
• M7: 3,113,880 km (0.119 R)
• M8: 3,329,151 km (0.105 R)
• M9: 3,763,134 km (0.115 R)
• M10: 6,365,689 km (0.081 R)
• M11: 7,879,170 km (0.084 R)
• M12: 8,371,796 km (0.08 R)
• M13: 8,649,150 km (0.1 R)
• M14: 10,337,961 km (0.063 R)
• M15: 11,942,697 km (0.051 R)
• M16: 13,141,874 km (0.09 R)
• M17: 15,361,009 km (0.118 R)
• M18: 17,516,714 km (0.049 R)
• M19: 26,148,212 km (0.116 R)
• M20: 38,753,179 km (0.068 R)
• M21: 45,491,815 km (0.034 R)
• M22: 47,509,741 km (0.099 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 512 - 16,484 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit