🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 96.5

Radius: 11.6

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.92 AU - 0.96 AU

Year: 629 Days

Day: 7.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 51,944,442 km

• M1: 147,354 km (0.111 R)
• M2: 672,592 km (0.108 R)
• M3: 1,135,897 km (0.058 R)
• M4: 1,545,196 km (0.078 R)
• M5: 2,046,798 km (0.118 R)
• M6: 2,787,756 km (0.098 R)
• M7: 3,241,038 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.7

Radius: 11.6

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.79 AU - 1.25 AU

Year: 711 Days

Day: 14 Hours

Environment

Temp: -171 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 51,944,442 km

• M1: 148,401 km (0.058 R)
• M2: 541,544 km (0.076 R)
• M3: 1,299,258 km (0.085 R)
• M4: 1,771,388 km (0.096 R)
• M5: 2,183,381 km (0.087 R)
• M6: 2,753,349 km (0.034 R)
• M7: 3,398,714 km (0.109 R)
• M8: 4,205,944 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.9

Radius: 8

Gravity: 10.67 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.98 AU - 1.22 AU

Year: 796 Days

Day: 10.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 51,944,442 km

• M1: 99,483 km (0.096 R)
• M2: 373,396 km (0.103 R)
• M3: 681,717 km (0.084 R)
• M4: 952,490 km (0.082 R)
• M5: 1,589,627 km (0.026 R)
• M6: 1,881,193 km (0.092 R)
• M7: 2,157,949 km (0.101 R)
• M8: 2,867,193 km (0.066 R)
• M9: 3,356,976 km (0.088 R)
• M10: 3,767,174 km (0.112 R)
• M11: 4,131,594 km (0.105 R)
• M12: 4,519,501 km (0.057 R)
• M13: 4,878,686 km (0.083 R)
• M14: 5,238,319 km (0.102 R)
• M15: 5,654,201 km (0.055 R)
• M16: 6,194,698 km (0.115 R)
• M17: 7,448,328 km (0.097 R)
• M18: 8,373,142 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 508.4

Radius: 13.3

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.12 AU - 1.68 AU

Year: 1143 Days

Day: 11.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 51,944,442 km

• M1: 165,455 km (0.111 R)
• M2: 623,075 km (0.113 R)
• M3: 1,257,071 km (0.117 R)
• M4: 1,731,745 km (0.103 R)
• M5: 2,284,060 km (0.063 R)
• M6: 3,412,477 km (0.04 R)
• M7: 3,982,595 km (0.09 R)
• M8: 4,686,153 km (0.1 R)
• M9: 5,181,173 km (0.082 R)
• M10: 5,670,806 km (0.101 R)
• M11: 6,191,108 km (0.087 R)
• M12: 6,834,528 km (0.047 R)
• M13: 7,328,052 km (0.09 R)
• M14: 7,946,639 km (0.1 R)
• M15: 8,761,947 km (0.09 R)
• M16: 9,984,162 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43.9

Radius: 12.1

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.46 AU - 2.06 AU

Year: 1612 Days

Day: 5.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 51,944,442 km

• M1: 150,495 km (0.077 R)
• M2: 608,863 km (0.109 R)
• M3: 997,369 km (0.074 R)
• M4: 1,430,604 km (0.084 R)
• M5: 1,943,725 km (0.049 R)
• M6: 2,418,848 km (0.116 R)
• M7: 2,815,432 km (0.108 R)
• M8: 3,324,065 km (0.095 R)
• M9: 4,671,044 km (0.101 R)
• M10: 5,680,830 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.8

Radius: 14.4

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 2.06 AU - 3.22 AU

Year: 2961 Days

Day: 8.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,944,442 km

• M1: 183,257 km (0.057 R)
• M2: 658,979 km (0.12 R)
• M3: 1,110,764 km (0.081 R)
• M4: 1,877,902 km (0.04 R)
• M5: 2,332,680 km (0.058 R)
• M6: 2,906,088 km (0.118 R)
• M7: 3,799,786 km (0.078 R)
• M8: 4,439,616 km (0.079 R)
• M9: 5,351,265 km (0.109 R)
• M10: 6,935,656 km (0.108 R)
• M11: 7,719,998 km (0.032 R)
• M12: 8,285,328 km (0.103 R)
• M13: 9,837,855 km (0.097 R)
• M14: 11,012,797 km (0.053 R)
• M15: 11,500,486 km (0.026 R)
• M16: 12,199,856 km (0.032 R)
• M17: 13,683,717 km (0.112 R)
• M18: 14,292,132 km (0.101 R)
• M19: 14,782,813 km (0.103 R)
• M20: 15,516,740 km (0.084 R)
• M21: 16,082,968 km (0.049 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753.3

Radius: 13.2

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 2.69 AU - 3.27 AU

Year: 3551 Days

Day: 7.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 51,944,442 km

• M1: 175,927 km (0.058 R)
• M2: 688,001 km (0.092 R)
• M3: 1,202,767 km (0.083 R)
• M4: 1,648,718 km (0.063 R)
• M5: 2,500,977 km (0.083 R)
• M6: 3,263,328 km (0.066 R)
• M7: 3,959,257 km (0.083 R)
• M8: 4,400,122 km (0.077 R)
• M9: 4,849,514 km (0.06 R)
• M10: 7,811,253 km (0.105 R)
• M11: 9,210,442 km (0.113 R)
• M12: 9,791,031 km (0.1 R)
• M13: 10,603,048 km (0.04 R)
• M14: 13,068,571 km (0.089 R)
• M15: 14,306,942 km (0.116 R)
• M16: 14,719,383 km (0.026 R)
• M17: 17,421,420 km (0.111 R)
• M18: 18,130,514 km (0.067 R)
• M19: 19,355,122 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 890.9

Radius: 7.2

Gravity: 17.19 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 4.74 AU - 7.06 AU

Year: 9892 Days

Day: 21.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 51,944,442 km

• M1: 141,370 km (0.099 R)
• M2: 439,668 km (0.094 R)
• M3: 696,079 km (0.099 R)
• M4: 1,252,433 km (0.095 R)
• M5: 1,532,032 km (0.102 R)
• M6: 3,986,484 km (0.081 R)
• M7: 4,659,076 km (0.098 R)
• M8: 6,115,860 km (0.117 R)
• M9: 6,340,855 km (0.104 R)
• M10: 6,927,728 km (0.098 R)
• M11: 7,422,897 km (0.101 R)
• M12: 8,716,918 km (0.096 R)
• M13: 10,631,472 km (0.114 R)
• M14: 12,269,419 km (0.087 R)
• M15: 13,055,705 km (0.111 R)
• M16: 13,429,700 km (0.104 R)
• M17: 16,179,459 km (0.105 R)
• M18: 16,538,643 km (0.084 R)
• M19: 17,723,757 km (0.062 R)
• M20: 18,259,617 km (0.07 R)
• M21: 18,885,235 km (0.026 R)
• M22: 20,847,810 km (0.05 R)
• M23: 21,445,004 km (0.084 R)
• M24: 23,213,850 km (0.045 R)
• M25: 24,697,412 km (0.095 R)
• M26: 25,850,662 km (0.119 R)
• M27: 28,264,274 km (0.063 R)
• M28: 33,187,390 km (0.053 R)
• M29: 33,767,381 km (0.092 R)
• M30: 34,236,221 km (0.116 R)
• M31: 36,033,041 km (0.087 R)
• M32: 38,652,799 km (0.093 R)
• M33: 43,850,277 km (0.075 R)
• M34: 44,829,994 km (0.117 R)
• M35: 46,687,999 km (0.078 R)
• M36: 51,944,420 km (0.094 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 475 - 16,414 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit