🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.48 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833

Radius: 9.9

Gravity: 8.5 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.88 AU - 1.02 AU

Year: 598 Days

Day: 7.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,067,649 km

• M1: 123,269 km (0.064 R)
• M2: 579,841 km (0.08 R)
• M3: 912,397 km (0.092 R)
• M4: 1,288,935 km (0.036 R)
• M5: 2,459,688 km (0.092 R)
• M6: 2,949,322 km (0.094 R)
• M7: 3,707,185 km (0.11 R)
• M8: 4,493,770 km (0.081 R)
• M9: 4,868,214 km (0.103 R)
• M10: 5,514,477 km (0.076 R)
• M11: 6,871,479 km (0.103 R)
• M12: 7,822,622 km (0.035 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 722.9

Radius: 13.3

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1 AU - 1.22 AU

Year: 755 Days

Day: 9.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,067,649 km

• M1: 166,054 km (0.118 R)
• M2: 700,567 km (0.101 R)
• M3: 1,177,784 km (0.107 R)
• M4: 2,397,007 km (0.062 R)
• M5: 3,317,931 km (0.069 R)
• M6: 3,773,606 km (0.114 R)
• M7: 4,271,169 km (0.104 R)
• M8: 4,863,876 km (0.094 R)
• M9: 5,605,432 km (0.089 R)
• M10: 6,589,337 km (0.078 R)
• M11: 7,383,253 km (0.086 R)
• M12: 8,364,017 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.4

Radius: 9.3

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 1.43 AU - 1.77 AU

Year: 1307 Days

Day: 14.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,067,649 km

• M1: 115,639 km (0.113 R)
• M2: 618,737 km (0.115 R)
• M3: 908,059 km (0.027 R)
• M4: 1,700,778 km (0.119 R)
• M5: 2,734,350 km (0.112 R)
• M6: 4,240,352 km (0.109 R)
• M7: 4,583,978 km (0.113 R)
• M8: 8,067,813 km (0.108 R)
• M9: 8,435,974 km (0.114 R)
• M10: 8,925,757 km (0.092 R)
• M11: 9,666,715 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832

Radius: 13.5

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.94 AU - 2.08 AU

Year: 1840 Days

Day: 12.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 35,067,649 km

• M1: 170,093 km (0.044 R)
• M2: 699,520 km (0.097 R)
• M3: 1,255,725 km (0.077 R)
• M4: 2,997,941 km (0.09 R)
• M5: 3,497,149 km (0.102 R)
• M6: 8,029,367 km (0.064 R)
• M7: 8,774,663 km (0.092 R)
• M8: 9,805,093 km (0.085 R)
• M9: 11,596,528 km (0.096 R)
• M10: 12,266,277 km (0.084 R)
• M11: 14,702,030 km (0.109 R)
• M12: 15,160,547 km (0.091 R)
• M13: 16,300,034 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797.8

Radius: 9

Gravity: 9.85 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.81 AU - 2.83 AU

Year: 2282 Days

Day: 10.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,067,649 km

• M1: 112,348 km (0.108 R)
• M2: 518,506 km (0.094 R)
• M3: 1,022,202 km (0.091 R)
• M4: 2,465,822 km (0.105 R)
• M5: 3,524,077 km (0.096 R)
• M6: 3,821,178 km (0.071 R)
• M7: 4,195,771 km (0.038 R)
• M8: 4,530,123 km (0.113 R)
• M9: 4,973,082 km (0.113 R)
• M10: 6,422,985 km (0.092 R)
• M11: 7,758,894 km (0.039 R)
• M12: 8,361,474 km (0.104 R)
• M13: 8,691,038 km (0.116 R)
• M14: 9,341,041 km (0.118 R)
• M15: 10,470,654 km (0.109 R)
• M16: 11,365,848 km (0.116 R)
• M17: 12,738,259 km (0.117 R)
• M18: 13,621,933 km (0.118 R)
• M19: 15,363,552 km (0.12 R)
• M20: 18,055,416 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.2

Radius: 12.6

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 4.5 AU - 5.76 AU

Year: 7502 Days

Day: 10.5 Hours

Environment

Temp: -209 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 35,067,649 km

• M1: 156,928 km (0.111 R)
• M2: 555,606 km (0.106 R)
• M3: 1,294,321 km (0.029 R)
• M4: 1,721,871 km (0.119 R)
• M5: 3,032,349 km (0.088 R)
• M6: 3,502,385 km (0.083 R)
• M7: 4,247,832 km (0.1 R)
• M8: 7,465,383 km (0.105 R)
• M9: 10,491,448 km (0.1 R)
• M10: 10,975,098 km (0.099 R)
• M11: 12,515,956 km (0.117 R)
• M12: 14,196,688 km (0.109 R)
• M13: 14,728,958 km (0.073 R)
• M14: 16,342,221 km (0.096 R)
• M15: 21,420,919 km (0.105 R)
• M16: 22,043,246 km (0.117 R)
• M17: 22,757,875 km (0.059 R)
• M18: 24,316,984 km (0.087 R)
• M19: 24,738,850 km (0.064 R)
• M20: 26,121,733 km (0.098 R)
• M21: 27,011,840 km (0.086 R)
• M22: 27,464,523 km (0.089 R)
• M23: 31,269,845 km (0.103 R)
• M24: 31,970,112 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 498.2

Radius: 3.8

Gravity: 34.5 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 5.88 AU - 6.46 AU

Year: 9896 Days

Day: 24.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 35,067,649 km

• M1: 47,273 km (0.1 R)
• M2: 206,445 km (0.093 R)
• M3: 340,485 km (0.1 R)
• M4: 1,156,092 km (0.089 R)
• M5: 1,296,565 km (0.105 R)
• M6: 2,702,486 km (0.118 R)
• M7: 3,037,585 km (0.065 R)
• M8: 3,260,635 km (0.05 R)
• M9: 3,689,532 km (0.081 R)
• M10: 3,943,549 km (0.093 R)
• M11: 4,374,242 km (0.078 R)
• M12: 4,865,222 km (0.035 R)
• M13: 6,059,462 km (0.068 R)
• M14: 7,278,236 km (0.104 R)
• M15: 10,840,909 km (0.096 R)
• M16: 12,284,229 km (0.099 R)
• M17: 16,749,426 km (0.114 R)
• M18: 21,289,273 km (0.11 R)
• M19: 22,186,711 km (0.078 R)
• M20: 22,939,487 km (0.029 R)
• M21: 27,243,867 km (0.115 R)
• M22: 28,593,838 km (0.093 R)
• M23: 30,292,222 km (0.065 R)
• M24: 32,056,729 km (0.104 R)
• M25: 36,939,155 km (0.087 R)
• M26: 41,159,610 km (0.116 R)
• M27: 42,549,524 km (0.081 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 199.3

Radius: 3.2

Gravity: 19.46 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 6.67 AU - 7.05 AU

Year: 11601 Days

Day: 17.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,067,649 km

• M1: 40,092 km (0.051 R)
• M2: 354,996 km (0.091 R)
• M3: 1,033,572 km (0.119 R)
• M4: 1,503,309 km (0.098 R)
• M5: 2,182,184 km (0.085 R)
• M6: 3,383,006 km (0.1 R)
• M7: 5,678,885 km (0.071 R)
• M8: 6,290,590 km (0.092 R)
• M9: 7,758,146 km (0.096 R)
• M10: 8,187,641 km (0.069 R)
• M11: 9,793,125 km (0.046 R)
• M12: 9,928,212 km (0.117 R)
• M13: 11,298,379 km (0.114 R)
• M14: 16,156,121 km (0.09 R)
• M15: 17,706,404 km (0.11 R)
• M16: 22,164,421 km (0.066 R)
• M17: 22,631,764 km (0.072 R)
• M18: 24,816,641 km (0.083 R)
• M19: 29,226,338 km (0.087 R)
• M20: 33,108,702 km (0.082 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: 449 - 20,242 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit