🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.7

Radius: 11.4

Gravity: 5.61 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.6 AU - 0.82 AU

Year: 386 Days

Day: 14.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,713,387 km

• M1: 141,819 km (0.107 R)
• M2: 572,212 km (0.119 R)
• M3: 958,025 km (0.076 R)
• M4: 1,422,377 km (0.031 R)
• M5: 1,901,838 km (0.097 R)
• M6: 3,060,772 km (0.11 R)
• M7: 3,658,266 km (0.038 R)
• M8: 4,156,278 km (0.109 R)
• M9: 4,699,318 km (0.091 R)
• M10: 5,448,055 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.7

Radius: 8.5

Gravity: 7.66 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.62 AU - 0.9 AU

Year: 428 Days

Day: 9.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 74,713,387 km

• M1: 105,915 km (0.073 R)
• M2: 519,703 km (0.117 R)
• M3: 854,503 km (0.105 R)
• M4: 1,150,707 km (0.057 R)
• M5: 1,522,906 km (0.084 R)
• M6: 1,911,412 km (0.088 R)
• M7: 2,503,520 km (0.089 R)
• M8: 2,837,572 km (0.1 R)
• M9: 3,157,113 km (0.088 R)
• M10: 3,524,227 km (0.097 R)
• M11: 3,843,319 km (0.056 R)
• M12: 4,141,767 km (0.078 R)
• M13: 4,726,694 km (0.062 R)
• M14: 5,146,616 km (0.094 R)
• M15: 5,429,505 km (0.053 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.5

Radius: 9.3

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.62 AU - 1.02 AU

Year: 479 Days

Day: 10.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 159.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 74,713,387 km

• M1: 115,639 km (0.082 R)
• M2: 501,602 km (0.107 R)
• M3: 914,342 km (0.099 R)
• M4: 1,305,092 km (0.098 R)
• M5: 2,267,904 km (0.034 R)
• M6: 2,931,969 km (0.058 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16.8

Radius: 10.8

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.85 AU - 0.89 AU

Year: 524 Days

Day: 7 Hours

Environment

Temp: -142 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 74,713,387 km

• M1: 134,339 km (0.099 R)
• M2: 586,124 km (0.094 R)
• M3: 1,095,655 km (0.119 R)
• M4: 1,529,788 km (0.092 R)
• M5: 1,901,389 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 680.8

Radius: 12.2

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.83 AU - 0.97 AU

Year: 551 Days

Day: 10.3 Hours

Environment

Temp: -153 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,713,387 km

• M1: 151,692 km (0.073 R)
• M2: 538,403 km (0.096 R)
• M3: 1,126,771 km (0.082 R)
• M4: 1,645,128 km (0.108 R)
• M5: 2,030,193 km (0.119 R)
• M6: 2,546,754 km (0.091 R)
• M7: 3,306,412 km (0.115 R)
• M8: 4,676,280 km (0.114 R)
• M9: 5,108,767 km (0.112 R)
• M10: 5,691,301 km (0.032 R)
• M11: 6,147,724 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 426.7

Radius: 8.9

Gravity: 5.39 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.88 AU - 2.04 AU

Year: 1772 Days

Day: 9 Hours

Environment

Temp: -192 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 74,713,387 km

• M1: 110,852 km (0.055 R)
• M2: 466,895 km (0.078 R)
• M3: 791,223 km (0.106 R)
• M4: 1,086,529 km (0.029 R)
• M5: 1,389,615 km (0.036 R)
• M6: 2,060,262 km (0.111 R)
• M7: 3,342,615 km (0.119 R)
• M8: 3,691,926 km (0.031 R)
• M9: 4,408,649 km (0.05 R)
• M10: 4,692,885 km (0.111 R)
• M11: 5,620,542 km (0.096 R)
• M12: 7,143,897 km (0.074 R)
• M13: 8,628,955 km (0.094 R)
• M14: 9,568,878 km (0.091 R)
• M15: 9,918,488 km (0.12 R)
• M16: 10,375,510 km (0.089 R)
• M17: 10,983,775 km (0.114 R)
• M18: 11,579,922 km (0.114 R)
• M19: 12,836,844 km (0.034 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 816

Radius: 14.5

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 2.45 AU - 2.45 AU

Year: 2476 Days

Day: 6.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,713,387 km

• M1: 180,415 km (0.066 R)
• M2: 716,424 km (0.094 R)
• M3: 1,278,463 km (0.037 R)
• M4: 1,758,972 km (0.109 R)
• M5: 2,617,813 km (0.061 R)
• M6: 4,533,863 km (0.083 R)
• M7: 5,458,826 km (0.075 R)
• M8: 8,258,999 km (0.095 R)
• M9: 8,965,400 km (0.098 R)
• M10: 9,458,625 km (0.106 R)
• M11: 11,128,137 km (0.119 R)
• M12: 16,724,743 km (0.076 R)
• M13: 18,246,003 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.2

Radius: 11.8

Gravity: 5.51 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 3.08 AU - 3.74 AU

Year: 4066 Days

Day: 6.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 74,713,387 km

• M1: 146,756 km (0.078 R)
• M2: 895,194 km (0.097 R)
• M3: 1,534,276 km (0.065 R)
• M4: 1,912,010 km (0.08 R)
• M5: 2,430,068 km (0.083 R)
• M6: 2,967,872 km (0.081 R)
• M7: 4,033,907 km (0.099 R)
• M8: 5,339,447 km (0.09 R)
• M9: 5,899,392 km (0.079 R)
• M10: 6,812,537 km (0.097 R)
• M11: 7,506,223 km (0.112 R)
• M12: 8,101,622 km (0.104 R)
• M13: 9,547,037 km (0.115 R)
• M14: 11,024,316 km (0.099 R)
• M15: 13,903,177 km (0.073 R)
• M16: 14,534,032 km (0.071 R)
• M17: 15,571,642 km (0.115 R)
• M18: 16,194,568 km (0.077 R)
• M19: 17,794,368 km (0.094 R)
• M20: 24,337,928 km (0.103 R)
• M21: 24,869,898 km (0.073 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 823

Radius: 5.7

Gravity: 25.33 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 7.97 AU - 10.25 AU

Year: 17754 Days

Day: 16.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 74,713,387 km

• M1: 83,924 km (0.09 R)
• M2: 1,002,904 km (0.114 R)
• M3: 1,413,251 km (0.101 R)
• M4: 1,987,109 km (0.097 R)
• M5: 2,359,757 km (0.08 R)
• M6: 2,753,349 km (0.119 R)
• M7: 3,326,309 km (0.039 R)
• M8: 4,231,675 km (0.051 R)
• M9: 6,429,268 km (0.117 R)
• M10: 6,737,589 km (0.059 R)
• M11: 7,820,528 km (0.104 R)
• M12: 9,179,026 km (0.118 R)
• M13: 11,120,657 km (0.075 R)
• M14: 12,087,508 km (0.106 R)
• M15: 13,749,092 km (0.099 R)
• M16: 20,475,161 km (0.07 R)
• M17: 21,239,008 km (0.097 R)
• M18: 26,449,053 km (0.111 R)
• M19: 36,178,151 km (0.078 R)
• M20: 40,776,340 km (0.106 R)
• M21: 45,749,123 km (0.054 R)
• M22: 48,046,348 km (0.097 R)
• M23: 49,733,363 km (0.1 R)
• M24: 58,194,170 km (0.068 R)
• M25: 64,472,494 km (0.093 R)
• M26: 69,467,118 km (0.093 R)
• M27: 73,599,310 km (0.113 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: 170 - 16,336 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit