🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.3

Radius: 10.7

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.63 AU - 0.71 AU

Year: 372 Days

Day: 9.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,495,070 km

• M1: 133,142 km (0.106 R)
• M2: 498,610 km (0.106 R)
• M3: 892,650 km (0.11 R)
• M4: 1,227,451 km (0.038 R)
• M5: 1,814,323 km (0.099 R)
• M6: 2,234,095 km (0.089 R)
• M7: 3,262,131 km (0.088 R)
• M8: 3,732,916 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 246.4

Radius: 12.5

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.62 AU - 0.76 AU

Year: 389 Days

Day: 14.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 67.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 66,495,070 km

• M1: 155,432 km (0.098 R)
• M2: 584,030 km (0.112 R)
• M3: 1,025,045 km (0.081 R)
• M4: 1,746,555 km (0.058 R)
• M5: 2,226,615 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 621.2

Radius: 8.2

Gravity: 9.24 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.31 AU - 1.97 AU

Year: 1424 Days

Day: 8.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 66,495,070 km

• M1: 114,143 km (0.097 R)
• M2: 454,628 km (0.11 R)
• M3: 869,762 km (0.057 R)
• M4: 1,149,510 km (0.049 R)
• M5: 1,438,832 km (0.107 R)
• M6: 1,897,649 km (0.07 R)
• M7: 2,451,161 km (0.118 R)
• M8: 2,799,874 km (0.063 R)
• M9: 3,151,878 km (0.086 R)
• M10: 3,454,664 km (0.104 R)
• M11: 3,928,290 km (0.088 R)
• M12: 4,261,595 km (0.103 R)
• M13: 4,709,640 km (0.065 R)
• M14: 4,965,153 km (0.055 R)
• M15: 5,721,819 km (0.098 R)
• M16: 6,267,552 km (0.083 R)
• M17: 6,650,224 km (0.039 R)
• M18: 6,947,475 km (0.025 R)
• M19: 7,409,882 km (0.118 R)
• M20: 7,810,954 km (0.117 R)
• M21: 8,114,039 km (0.093 R)
• M22: 8,598,138 km (0.061 R)
• M23: 10,231,447 km (0.077 R)
• M24: 10,966,721 km (0.118 R)
• M25: 12,467,337 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.2

Radius: 10.2

Gravity: 8.12 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.65 AU - 1.71 AU

Year: 1477 Days

Day: 5.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,495,070 km

• M1: 136,882 km (0.115 R)
• M2: 588,967 km (0.081 R)
• M3: 1,024,446 km (0.106 R)
• M4: 1,558,361 km (0.116 R)
• M5: 1,917,246 km (0.118 R)
• M6: 2,521,622 km (0.103 R)
• M7: 4,927,155 km (0.099 R)
• M8: 5,374,902 km (0.087 R)
• M9: 5,757,124 km (0.108 R)
• M10: 6,303,157 km (0.096 R)
• M11: 7,173,367 km (0.112 R)
• M12: 9,151,351 km (0.058 R)
• M13: 9,895,750 km (0.071 R)
• M14: 11,653,076 km (0.053 R)
• M15: 12,841,930 km (0.049 R)
• M16: 13,363,877 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.6

Radius: 9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.73 AU - 2.81 AU

Year: 2320 Days

Day: 14.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,495,070 km

• M1: 533,915 km (0.066 R)
• M2: 911,949 km (0.076 R)
• M3: 1,705,715 km (0.12 R)
• M4: 2,782,371 km (0.111 R)
• M5: 5,720,772 km (0.069 R)
• M6: 6,199,635 km (0.1 R)
• M7: 7,444,289 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 519.4

Radius: 9

Gravity: 6.41 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.84 AU - 2.88 AU

Year: 2459 Days

Day: 5.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,495,070 km

• M1: 111,899 km (0.109 R)
• M2: 605,123 km (0.117 R)
• M3: 1,010,683 km (0.11 R)
• M4: 1,365,679 km (0.106 R)
• M5: 2,216,891 km (0.103 R)
• M6: 2,692,762 km (0.078 R)
• M7: 5,034,268 km (0.116 R)
• M8: 5,330,471 km (0.083 R)
• M9: 5,662,429 km (0.05 R)
• M10: 6,109,577 km (0.1 R)
• M11: 6,851,882 km (0.105 R)
• M12: 7,476,303 km (0.114 R)
• M13: 8,740,555 km (0.11 R)
• M14: 9,475,080 km (0.12 R)
• M15: 10,106,084 km (0.071 R)
• M16: 11,142,947 km (0.092 R)
• M17: 11,966,034 km (0.074 R)
• M18: 14,863,745 km (0.102 R)
• M19: 16,901,418 km (0.043 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569.7

Radius: 10

Gravity: 5.7 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.94 AU - 3.08 AU

Year: 2697 Days

Day: 6.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 66,495,070 km

• M1: 124,316 km (0.055 R)
• M2: 500,554 km (0.032 R)
• M3: 1,118,094 km (0.073 R)
• M4: 1,641,837 km (0.11 R)
• M5: 2,405,384 km (0.109 R)
• M6: 2,875,869 km (0.115 R)
• M7: 3,200,497 km (0.094 R)
• M8: 3,659,463 km (0.087 R)
• M9: 4,263,839 km (0.068 R)
• M10: 4,579,340 km (0.082 R)
• M11: 5,401,381 km (0.111 R)
• M12: 5,924,524 km (0.044 R)
• M13: 6,618,808 km (0.085 R)
• M14: 7,947,387 km (0.115 R)
• M15: 9,446,058 km (0.107 R)
• M16: 11,322,764 km (0.105 R)
• M17: 12,561,434 km (0.102 R)
• M18: 14,350,475 km (0.108 R)
• M19: 14,727,761 km (0.068 R)
• M20: 15,403,794 km (0.07 R)
• M21: 15,799,330 km (0.095 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.3

Radius: 11.5

Gravity: 6.04 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 4.06 AU - 4.4 AU

Year: 5901 Days

Day: 6.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,495,070 km

• M1: 147,952 km (0.116 R)
• M2: 613,501 km (0.082 R)
• M3: 1,106,875 km (0.086 R)
• M4: 1,671,307 km (0.117 R)
• M5: 2,404,935 km (0.114 R)
• M6: 2,992,406 km (0.082 R)
• M7: 3,605,608 km (0.086 R)
• M8: 4,481,803 km (0.086 R)
• M9: 5,494,730 km (0.093 R)
• M10: 7,550,354 km (0.118 R)
• M11: 8,730,382 km (0.081 R)
• M12: 9,495,126 km (0.115 R)
• M13: 11,061,117 km (0.072 R)
• M14: 12,899,974 km (0.103 R)
• M15: 13,334,855 km (0.047 R)
• M16: 15,719,146 km (0.097 R)
• M17: 16,152,980 km (0.083 R)
• M18: 18,306,740 km (0.07 R)
• M19: 19,630,083 km (0.08 R)
• M20: 21,543,141 km (0.104 R)
• M21: 23,416,555 km (0.058 R)
• M22: 30,541,153 km (0.078 R)
• M23: 31,120,247 km (0.074 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 530.2

Radius: 6

Gravity: 14.73 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 5.34 AU - 6.7 AU

Year: 10018 Days

Day: 17.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,495,070 km

• M1: 75,098 km (0.112 R)
• M2: 268,678 km (0.111 R)
• M3: 482,004 km (0.052 R)
• M4: 753,674 km (0.057 R)
• M5: 1,298,360 km (0.101 R)
• M6: 1,641,089 km (0.071 R)
• M7: 2,507,410 km (0.067 R)
• M8: 3,571,948 km (0.085 R)
• M9: 4,670,894 km (0.092 R)
• M10: 6,224,169 km (0.034 R)
• M11: 7,353,334 km (0.1 R)
• M12: 11,933,273 km (0.111 R)
• M13: 12,322,975 km (0.078 R)
• M14: 12,663,759 km (0.029 R)
• M15: 15,033,688 km (0.071 R)
• M16: 15,553,990 km (0.077 R)
• M17: 16,976,666 km (0.086 R)
• M18: 17,327,921 km (0.107 R)
• M19: 19,922,996 km (0.073 R)
• M20: 20,235,057 km (0.106 R)
• M21: 26,615,107 km (0.093 R)
• M22: 38,267,584 km (0.088 R)
• M23: 42,885,970 km (0.113 R)
• M24: 43,799,564 km (0.108 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 612.1

Radius: 6.4

Gravity: 14.94 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 6.73 AU - 10.59 AU

Year: 17285 Days

Day: 18.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 66,495,070 km

• M1: 80,184 km (0.11 R)
• M2: 383,419 km (0.103 R)
• M3: 1,068,278 km (0.081 R)
• M4: 1,343,688 km (0.115 R)
• M5: 1,819,559 km (0.084 R)
• M6: 2,039,019 km (0.055 R)
• M7: 3,362,511 km (0.079 R)
• M8: 3,869,648 km (0.111 R)
• M9: 4,172,733 km (0.081 R)
• M10: 4,623,621 km (0.112 R)
• M11: 4,860,884 km (0.07 R)
• M12: 5,698,632 km (0.12 R)
• M13: 6,502,122 km (0.075 R)
• M14: 6,714,252 km (0.114 R)
• M15: 9,046,034 km (0.118 R)
• M16: 10,654,211 km (0.05 R)
• M17: 12,904,462 km (0.107 R)
• M18: 13,859,196 km (0.081 R)
• M19: 16,216,559 km (0.116 R)
• M20: 21,147,604 km (0.111 R)
• M21: 23,055,874 km (0.028 R)
• M22: 24,560,530 km (0.068 R)
• M23: 30,400,382 km (0.087 R)
• M24: 32,207,225 km (0.099 R)
• M25: 35,114,659 km (0.114 R)
• M26: 36,565,160 km (0.1 R)
• M27: 40,151,470 km (0.103 R)
• M28: 45,185,738 km (0.084 R)
• M29: 45,494,358 km (0.085 R)
• M30: 45,959,907 km (0.099 R)
• M31: 48,013,885 km (0.073 R)
• M32: 55,067,425 km (0.081 R)
• M33: 56,663,634 km (0.083 R)
• M34: 57,744,928 km (0.112 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: 212 - 13,470 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit