🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.7

Radius: 13.3

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.66 AU - 0.66 AU

Year: 364 Days

Day: 11.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 56,109,479 km

• M1: 165,455 km (0.029 R)
• M2: 590,612 km (0.112 R)
• M3: 1,005,896 km (0.116 R)
• M4: 1,653,655 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 896.7

Radius: 14.7

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.61 AU - 0.91 AU

Year: 449 Days

Day: 9.1 Hours

Environment

Temp: -163 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,109,479 km

• M1: 182,809 km (0.082 R)
• M2: 724,353 km (0.103 R)
• M3: 1,197,681 km (0.101 R)
• M4: 2,035,728 km (0.078 R)
• M5: 2,548,400 km (0.102 R)
• M6: 4,412,090 km (0.09 R)
• M7: 4,928,203 km (0.091 R)
• M8: 6,398,451 km (0.067 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584.1

Radius: 10.5

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.78 AU - 1 AU

Year: 569 Days

Day: 8.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 56,109,479 km

• M1: 130,749 km (0.092 R)
• M2: 478,414 km (0.046 R)
• M3: 892,650 km (0.081 R)
• M4: 1,326,784 km (0.086 R)
• M5: 1,680,134 km (0.119 R)
• M6: 2,159,595 km (0.118 R)
• M7: 2,582,807 km (0.088 R)
• M8: 3,177,908 km (0.101 R)
• M9: 4,972,184 km (0.108 R)
• M10: 5,437,284 km (0.116 R)
• M11: 6,077,713 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 302.5

Radius: 15

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.69 AU - 1.79 AU

Year: 1557 Days

Day: 5.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,109,479 km

• M1: 188,793 km (0.115 R)
• M2: 729,439 km (0.112 R)
• M3: 1,196,484 km (0.063 R)
• M4: 1,820,456 km (0.041 R)
• M5: 2,495,741 km (0.101 R)
• M6: 3,009,909 km (0.11 R)
• M7: 3,869,050 km (0.081 R)
• M8: 6,076,965 km (0.1 R)
• M9: 6,972,458 km (0.059 R)
• M10: 8,240,300 km (0.056 R)
• M11: 8,943,410 km (0.117 R)
• M12: 9,656,842 km (0.115 R)
• M13: 10,438,939 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847.5

Radius: 13.6

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 2.77 AU - 4.49 AU

Year: 4691 Days

Day: 6.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 56,109,479 km

• M1: 169,345 km (0.067 R)
• M2: 797,805 km (0.097 R)
• M3: 1,259,464 km (0.097 R)
• M4: 2,206,419 km (0.089 R)
• M5: 2,729,862 km (0.119 R)
• M6: 3,176,561 km (0.115 R)
• M7: 4,364,817 km (0.092 R)
• M8: 4,953,634 km (0.108 R)
• M9: 6,135,308 km (0.114 R)
• M10: 7,604,209 km (0.104 R)
• M11: 8,080,230 km (0.095 R)
• M12: 10,274,980 km (0.056 R)
• M13: 12,437,118 km (0.092 R)
• M14: 12,893,392 km (0.031 R)
• M15: 13,785,743 km (0.102 R)
• M16: 14,606,886 km (0.104 R)
• M17: 15,344,702 km (0.091 R)
• M18: 16,956,470 km (0.051 R)
• M19: 18,481,770 km (0.117 R)
• M20: 23,070,385 km (0.071 R)
• M21: 28,106,897 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 442.6

Radius: 10.8

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 3.31 AU - 4.27 AU

Year: 5004 Days

Day: 13.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 56,109,479 km

• M1: 139,575 km (0.115 R)
• M2: 835,953 km (0.076 R)
• M3: 1,219,971 km (0.092 R)
• M4: 1,860,549 km (0.076 R)
• M5: 2,378,157 km (0.038 R)
• M6: 2,936,905 km (0.056 R)
• M7: 3,305,215 km (0.059 R)
• M8: 4,135,932 km (0.09 R)
• M9: 5,663,476 km (0.043 R)
• M10: 6,061,706 km (0.108 R)
• M11: 8,269,022 km (0.081 R)
• M12: 8,933,237 km (0.118 R)
• M13: 12,849,260 km (0.111 R)
• M14: 13,842,141 km (0.072 R)
• M15: 14,514,434 km (0.105 R)
• M16: 17,245,942 km (0.081 R)
• M17: 20,968,685 km (0.067 R)
• M18: 22,838,658 km (0.104 R)
• M19: 24,293,647 km (0.104 R)
• M20: 25,732,180 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 404.2

Radius: 10.2

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 4.01 AU - 5.95 AU

Year: 7538 Days

Day: 12 Hours

Environment

Temp: -227 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,109,479 km

• M1: 127,308 km (0.053 R)
• M2: 626,665 km (0.095 R)
• M3: 1,430,604 km (0.052 R)
• M4: 1,793,529 km (0.05 R)
• M5: 2,218,088 km (0.039 R)
• M6: 3,089,495 km (0.086 R)
• M7: 3,681,903 km (0.077 R)
• M8: 4,631,400 km (0.084 R)
• M9: 5,615,754 km (0.083 R)
• M10: 6,599,061 km (0.034 R)
• M11: 7,509,065 km (0.072 R)
• M12: 7,842,818 km (0.029 R)
• M13: 8,186,594 km (0.104 R)
• M14: 8,822,684 km (0.073 R)
• M15: 9,534,171 km (0.079 R)
• M16: 10,283,507 km (0.095 R)
• M17: 11,310,796 km (0.12 R)
• M18: 14,861,501 km (0.062 R)
• M19: 18,150,261 km (0.034 R)
• M20: 22,886,978 km (0.101 R)
• M21: 23,511,849 km (0.044 R)
• M22: 27,503,269 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 573

Radius: 4.1

Gravity: 34.09 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 6.78 AU - 8.16 AU

Year: 13848 Days

Day: 19.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 56,109,479 km

• M1: 51,013 km (0.118 R)
• M2: 232,774 km (0.073 R)
• M3: 506,239 km (0.119 R)
• M4: 845,527 km (0.11 R)
• M5: 1,142,180 km (0.119 R)
• M6: 1,641,537 km (0.048 R)
• M7: 2,844,753 km (0.1 R)
• M8: 3,350,843 km (0.113 R)
• M9: 4,761,401 km (0.104 R)
• M10: 4,924,612 km (0.04 R)
• M11: 5,834,018 km (0.11 R)
• M12: 7,016,290 km (0.118 R)
• M13: 8,255,858 km (0.062 R)
• M14: 8,927,253 km (0.075 R)
• M15: 9,125,620 km (0.11 R)
• M16: 10,323,749 km (0.114 R)
• M17: 10,597,364 km (0.093 R)
• M18: 11,102,256 km (0.088 R)
• M19: 13,476,075 km (0.098 R)
• M20: 13,802,947 km (0.12 R)
• M21: 14,953,953 km (0.04 R)
• M22: 15,948,779 km (0.106 R)
• M23: 16,388,297 km (0.098 R)
• M24: 17,833,562 km (0.101 R)
• M25: 18,307,039 km (0.111 R)
• M26: 18,707,962 km (0.065 R)
• M27: 18,951,357 km (0.098 R)
• M28: 20,370,293 km (0.107 R)
• M29: 22,583,594 km (0.085 R)
• M30: 23,985,625 km (0.097 R)
• M31: 24,659,264 km (0.079 R)
• M32: 27,480,680 km (0.109 R)
• M33: 29,294,405 km (0.042 R)
• M34: 36,838,476 km (0.096 R)
• M35: 37,220,848 km (0.115 R)
• M36: 47,059,451 km (0.106 R)
• M37: 49,493,109 km (0.085 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 458 - 13,164 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit