🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 188.6

Radius: 14.6

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1 AU - 1.18 AU

Year: 747 Days

Day: 5 Hours

Environment

Temp: -156 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 25,048,448 km

• M1: 183,856 km (0.089 R)
• M2: 708,795 km (0.053 R)
• M3: 1,274,125 km (0.118 R)
• M4: 1,840,652 km (0.092 R)
• M5: 2,660,897 km (0.085 R)
• M6: 3,162,200 km (0.092 R)
• M7: 3,837,933 km (0.084 R)
• M8: 4,318,143 km (0.034 R)
• M9: 5,432,946 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 94

Radius: 11.6

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.88 AU - 1.38 AU

Year: 788 Days

Day: 13.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 25,048,448 km

• M1: 144,512 km (0.092 R)
• M2: 578,196 km (0.026 R)
• M3: 1,177,784 km (0.12 R)
• M4: 1,552,377 km (0.043 R)
• M5: 1,993,092 km (0.079 R)
• M6: 2,623,947 km (0.058 R)
• M7: 3,928,590 km (0.105 R)
• M8: 4,426,601 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 768.2

Radius: 12.9

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.72 AU - 2.52 AU

Year: 2025 Days

Day: 9.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 25,048,448 km

• M1: 160,519 km (0.073 R)
• M2: 771,775 km (0.084 R)
• M3: 1,376,300 km (0.033 R)
• M4: 2,929,575 km (0.099 R)
• M5: 3,514,204 km (0.118 R)
• M6: 4,746,740 km (0.066 R)
• M7: 5,392,405 km (0.116 R)
• M8: 8,233,568 km (0.082 R)
• M9: 9,643,677 km (0.096 R)
• M10: 10,534,532 km (0.089 R)
• M11: 11,635,573 km (0.105 R)
• M12: 14,200,428 km (0.117 R)
• M13: 15,591,090 km (0.107 R)
• M14: 17,020,049 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.4

Radius: 8.9

Gravity: 5.52 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 2.18 AU - 2.48 AU

Year: 2333 Days

Day: 7.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 25,048,448 km

• M1: 110,702 km (0.097 R)
• M2: 497,413 km (0.094 R)
• M3: 1,362,986 km (0.091 R)
• M4: 2,005,958 km (0.119 R)
• M5: 2,694,856 km (0.089 R)
• M6: 4,535,807 km (0.046 R)
• M7: 5,191,046 km (0.11 R)
• M8: 6,153,110 km (0.077 R)
• M9: 6,663,388 km (0.106 R)
• M10: 7,510,112 km (0.118 R)
• M11: 8,864,123 km (0.118 R)
• M12: 9,251,282 km (0.092 R)
• M13: 9,616,002 km (0.12 R)
• M14: 11,208,920 km (0.094 R)
• M15: 11,509,462 km (0.042 R)
• M16: 13,681,772 km (0.067 R)
• M17: 13,982,015 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 309.7

Radius: 11.5

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.29 AU - 2.89 AU

Year: 2734 Days

Day: 9.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 25,048,448 km

• M1: 143,016 km (0.119 R)
• M2: 641,476 km (0.08 R)
• M3: 1,053,917 km (0.106 R)
• M4: 1,468,901 km (0.07 R)
• M5: 1,916,648 km (0.068 R)
• M6: 2,390,424 km (0.113 R)
• M7: 2,839,667 km (0.054 R)
• M8: 3,802,628 km (0.058 R)
• M9: 4,206,243 km (0.114 R)
• M10: 4,577,695 km (0.094 R)
• M11: 6,190,509 km (0.027 R)
• M12: 6,830,639 km (0.119 R)
• M13: 7,946,190 km (0.066 R)
• M14: 8,640,623 km (0.072 R)
• M15: 10,678,894 km (0.108 R)
• M16: 11,411,924 km (0.073 R)
• M17: 12,654,334 km (0.119 R)
• M18: 13,686,111 km (0.087 R)
• M19: 14,507,104 km (0.065 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.2

Radius: 8.8

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 3.12 AU - 3.98 AU

Year: 4388 Days

Day: 8.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 25,048,448 km

• M1: 109,506 km (0.083 R)
• M2: 503,546 km (0.048 R)
• M3: 1,152,652 km (0.118 R)
• M4: 1,950,307 km (0.112 R)
• M5: 2,547,951 km (0.092 R)
• M6: 4,437,372 km (0.105 R)
• M7: 4,969,492 km (0.067 R)
• M8: 5,347,376 km (0.06 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.3

Radius: 11.3

Gravity: 6.46 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 4.03 AU - 5.15 AU

Year: 6451 Days

Day: 13.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 51.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 25,048,448 km

• M1: 150,047 km (0.119 R)
• M2: 572,511 km (0.088 R)
• M3: 990,936 km (0.063 R)
• M4: 1,528,292 km (0.094 R)
• M5: 2,061,459 km (0.085 R)
• M6: 3,573,295 km (0.112 R)
• M7: 4,360,928 km (0.096 R)
• M8: 4,938,076 km (0.109 R)
• M9: 5,290,379 km (0.077 R)
• M10: 5,786,446 km (0.118 R)
• M11: 6,658,900 km (0.114 R)
• M12: 7,237,994 km (0.081 R)
• M13: 8,790,969 km (0.044 R)
• M14: 10,411,862 km (0.11 R)
• M15: 10,797,526 km (0.051 R)
• M16: 11,803,870 km (0.036 R)
• M17: 13,599,494 km (0.119 R)
• M18: 15,260,329 km (0.073 R)
• M19: 16,657,125 km (0.039 R)
• M20: 19,557,528 km (0.099 R)
• M21: 19,997,645 km (0.041 R)
• M22: 21,590,563 km (0.056 R)
• M23: 22,060,749 km (0.102 R)
• M24: 22,698,485 km (0.108 R)
• M25: 23,677,902 km (0.049 R)
• M26: 24,770,565 km (0.096 R)
• M27: 27,694,904 km (0.053 R)
• M28: 28,064,261 km (0.094 R)
• M29: 29,575,050 km (0.076 R)
• M30: 38,064,281 km (0.065 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 47.5

Radius: 7.8

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 7.27 AU - 8.37 AU

Year: 14346 Days

Day: 21.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 25,048,448 km

• M1: 96,939 km (0.091 R)
• M2: 486,941 km (0.12 R)
• M3: 914,641 km (0.065 R)
• M4: 1,371,214 km (0.089 R)
• M5: 2,447,272 km (0.091 R)
• M6: 2,720,736 km (0.106 R)
• M7: 3,253,454 km (0.057 R)
• M8: 3,917,819 km (0.11 R)
• M9: 4,525,934 km (0.083 R)
• M10: 4,990,585 km (0.089 R)
• M11: 6,188,714 km (0.082 R)
• M12: 12,445,795 km (0.119 R)
• M13: 15,528,708 km (0.057 R)
• M14: 16,134,130 km (0.077 R)
• M15: 17,925,266 km (0.105 R)
• M16: 18,226,107 km (0.063 R)
• M17: 20,821,331 km (0.115 R)
• M18: 22,588,979 km (0.119 R)
• M19: 23,869,836 km (0.106 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 552 - 18,712 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit