🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488.7

Radius: 14.5

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.73 AU - 1.09 AU

Year: 589 Days

Day: 7.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,063,228 km

• M1: 180,415 km (0.075 R)
• M2: 709,842 km (0.107 R)
• M3: 1,189,303 km (0.105 R)
• M4: 1,778,719 km (0.086 R)
• M5: 2,512,945 km (0.05 R)
• M6: 2,968,620 km (0.086 R)
• M7: 4,174,678 km (0.095 R)
• M8: 4,668,052 km (0.107 R)
• M9: 5,232,934 km (0.063 R)
• M10: 5,721,071 km (0.094 R)
• M11: 6,257,978 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.1

Radius: 11.8

Gravity: 5.17 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.92 AU - 1.18 AU

Year: 730 Days

Day: 8.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,063,228 km

• M1: 146,756 km (0.102 R)
• M2: 639,082 km (0.095 R)
• M3: 1,020,706 km (0.075 R)
• M4: 1,463,815 km (0.097 R)
• M5: 2,179,043 km (0.112 R)
• M6: 2,846,997 km (0.085 R)
• M7: 3,675,470 km (0.102 R)
• M8: 4,877,639 km (0.098 R)
• M9: 5,301,599 km (0.031 R)
• M10: 5,983,915 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 443.8

Radius: 11.9

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.98 AU - 1.22 AU

Year: 782 Days

Day: 6.8 Hours

Environment

Temp: -174 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,063,228 km

• M1: 147,952 km (0.083 R)
• M2: 634,893 km (0.113 R)
• M3: 1,117,646 km (0.101 R)
• M4: 1,803,702 km (0.106 R)
• M5: 2,210,009 km (0.118 R)
• M6: 2,602,704 km (0.096 R)
• M7: 3,401,108 km (0.118 R)
• M8: 3,830,154 km (0.063 R)
• M9: 6,347,138 km (0.117 R)
• M10: 7,128,937 km (0.038 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 422.3

Radius: 10.6

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.28 AU - 1.38 AU

Year: 1040 Days

Day: 5.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,063,228 km

• M1: 131,796 km (0.102 R)
• M2: 466,147 km (0.091 R)
• M3: 809,624 km (0.117 R)
• M4: 1,152,502 km (0.068 R)
• M5: 1,804,749 km (0.093 R)
• M6: 2,473,750 km (0.054 R)
• M7: 2,854,327 km (0.077 R)
• M8: 3,260,934 km (0.062 R)
• M9: 3,619,520 km (0.088 R)
• M10: 3,958,659 km (0.088 R)
• M11: 4,319,190 km (0.033 R)
• M12: 5,106,673 km (0.118 R)
• M13: 5,439,827 km (0.038 R)
• M14: 6,358,209 km (0.095 R)
• M15: 7,033,344 km (0.09 R)
• M16: 7,493,806 km (0.118 R)
• M17: 8,655,583 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 754.4

Radius: 13.5

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.54 AU - 1.64 AU

Year: 1360 Days

Day: 7.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,063,228 km

• M1: 171,439 km (0.108 R)
• M2: 712,535 km (0.111 R)
• M3: 1,188,106 km (0.057 R)
• M4: 1,678,787 km (0.086 R)
• M5: 2,862,406 km (0.037 R)
• M6: 3,716,460 km (0.083 R)
• M7: 4,339,385 km (0.117 R)
• M8: 5,446,709 km (0.08 R)
• M9: 5,907,620 km (0.094 R)
• M10: 9,003,697 km (0.116 R)
• M11: 10,262,713 km (0.085 R)
• M12: 11,281,774 km (0.115 R)
• M13: 12,935,279 km (0.068 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339

Radius: 13.7

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 2.06 AU - 2.28 AU

Year: 2168 Days

Day: 14 Hours

Environment

Temp: -212 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,063,228 km

• M1: 170,542 km (0.036 R)
• M2: 1,345,184 km (0.056 R)
• M3: 1,890,019 km (0.057 R)
• M4: 2,672,865 km (0.117 R)
• M5: 5,341,242 km (0.041 R)
• M6: 6,832,733 km (0.107 R)
• M7: 7,298,581 km (0.073 R)
• M8: 9,696,485 km (0.104 R)
• M9: 11,109,886 km (0.105 R)
• M10: 12,427,095 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 677

Radius: 13.2

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 2.43 AU - 2.61 AU

Year: 2713 Days

Day: 8.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 36,063,228 km

• M1: 164,109 km (0.111 R)
• M2: 845,378 km (0.079 R)
• M3: 1,542,055 km (0.119 R)
• M4: 1,984,715 km (0.092 R)
• M5: 2,812,290 km (0.048 R)
• M6: 3,649,590 km (0.055 R)
• M7: 4,096,887 km (0.065 R)
• M8: 5,056,109 km (0.091 R)
• M9: 5,974,341 km (0.101 R)
• M10: 6,826,600 km (0.111 R)
• M11: 8,536,952 km (0.088 R)
• M12: 8,979,911 km (0.094 R)
• M13: 9,728,050 km (0.107 R)
• M14: 12,309,362 km (0.08 R)
• M15: 14,632,168 km (0.103 R)
• M16: 15,070,639 km (0.077 R)
• M17: 16,438,712 km (0.056 R)
• M18: 17,558,900 km (0.119 R)
• M19: 18,165,669 km (0.037 R)
• M20: 19,304,708 km (0.098 R)
• M21: 19,891,730 km (0.101 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 760.3

Radius: 9.2

Gravity: 8.98 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 3.68 AU - 4.08 AU

Year: 5184 Days

Day: 12.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 97.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 36,063,228 km

• M1: 115,190 km (0.064 R)
• M2: 876,644 km (0.09 R)
• M3: 1,357,601 km (0.064 R)
• M4: 2,249,952 km (0.092 R)
• M5: 3,002,878 km (0.064 R)
• M6: 4,008,325 km (0.113 R)
• M7: 5,195,235 km (0.073 R)
• M8: 6,634,965 km (0.081 R)
• M9: 7,429,030 km (0.09 R)
• M10: 8,797,252 km (0.071 R)
• M11: 9,841,446 km (0.104 R)
• M12: 11,583,962 km (0.09 R)
• M13: 14,853,722 km (0.089 R)
• M14: 15,433,115 km (0.088 R)
• M15: 19,573,535 km (0.051 R)
• M16: 28,170,925 km (0.063 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 130.1

Radius: 5.1

Gravity: 5 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 7.54 AU - 8.2 AU

Year: 14975 Days

Day: 20.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 36,063,228 km

• M1: 63,429 km (0.074 R)
• M2: 284,086 km (0.107 R)
• M3: 446,699 km (0.114 R)
• M4: 653,294 km (0.067 R)
• M5: 845,228 km (0.117 R)
• M6: 1,156,840 km (0.043 R)
• M7: 2,581,012 km (0.045 R)
• M8: 3,026,664 km (0.103 R)
• M9: 3,343,961 km (0.109 R)
• M10: 3,753,560 km (0.076 R)
• M11: 4,272,814 km (0.109 R)
• M12: 5,038,157 km (0.064 R)
• M13: 6,184,526 km (0.094 R)
• M14: 7,344,807 km (0.108 R)
• M15: 11,283,270 km (0.105 R)
• M16: 12,305,771 km (0.032 R)
• M17: 15,311,641 km (0.108 R)
• M18: 18,015,772 km (0.114 R)
• M19: 18,843,049 km (0.098 R)
• M20: 21,630,057 km (0.109 R)
• M21: 24,346,305 km (0.114 R)
• M22: 24,680,058 km (0.119 R)
• M23: 25,785,886 km (0.087 R)
• M24: 26,570,527 km (0.1 R)
• M25: 28,095,976 km (0.064 R)
• M26: 29,489,630 km (0.074 R)
• M27: 32,313,589 km (0.11 R)
• M28: 33,842,479 km (0.101 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 273 - 18,255 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit