🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.61 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.9

Radius: 8.8

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1.15 AU - 1.27 AU

Year: 873 Days

Day: 9.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 138.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,996,102 km

• M1: 109,506 km (0.108 R)
• M2: 457,769 km (0.034 R)
• M3: 764,445 km (0.107 R)
• M4: 1,071,869 km (0.113 R)
• M5: 1,373,608 km (0.034 R)
• M6: 1,846,187 km (0.078 R)
• M7: 2,219,135 km (0.094 R)
• M8: 3,105,801 km (0.05 R)
• M9: 3,812,502 km (0.057 R)
• M10: 4,482,551 km (0.115 R)
• M11: 4,862,230 km (0.118 R)
• M12: 5,228,894 km (0.115 R)
• M13: 5,758,620 km (0.093 R)
• M14: 6,112,419 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 691.8

Radius: 8.1

Gravity: 10.54 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.18 AU - 1.42 AU

Year: 972 Days

Day: 10.9 Hours

Environment

Temp: -174 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,996,102 km

• M1: 102,774 km (0.101 R)
• M2: 372,648 km (0.095 R)
• M3: 657,632 km (0.07 R)
• M4: 1,012,030 km (0.117 R)
• M5: 1,336,807 km (0.111 R)
• M6: 2,137,155 km (0.044 R)
• M7: 2,442,634 km (0.089 R)
• M8: 3,437,161 km (0.112 R)
• M9: 4,147,601 km (0.065 R)
• M10: 5,140,632 km (0.094 R)
• M11: 5,652,107 km (0.078 R)
• M12: 6,305,849 km (0.036 R)
• M13: 8,787,678 km (0.06 R)
• M14: 9,092,259 km (0.048 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 941

Radius: 13.3

Gravity: 5.32 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.16 AU - 1.52 AU

Year: 1018 Days

Day: 10.8 Hours

Environment

Temp: -163 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,996,102 km

• M1: 165,455 km (0.064 R)
• M2: 591,959 km (0.027 R)
• M3: 1,069,326 km (0.048 R)
• M4: 1,657,395 km (0.107 R)
• M5: 2,480,931 km (0.077 R)
• M6: 3,749,371 km (0.071 R)
• M7: 4,582,482 km (0.11 R)
• M8: 5,432,796 km (0.092 R)
• M9: 5,983,167 km (0.071 R)
• M10: 6,431,661 km (0.051 R)
• M11: 7,346,153 km (0.093 R)
• M12: 8,679,369 km (0.1 R)
• M13: 9,196,978 km (0.118 R)
• M14: 9,613,758 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 718.7

Radius: 14.8

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.42 AU - 1.7 AU

Year: 1278 Days

Day: 12.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,996,102 km

• M1: 184,604 km (0.08 R)
• M2: 776,114 km (0.108 R)
• M3: 1,346,082 km (0.104 R)
• M4: 1,827,787 km (0.104 R)
• M5: 2,608,987 km (0.099 R)
• M6: 3,127,942 km (0.067 R)
• M7: 3,589,751 km (0.078 R)
• M8: 4,709,491 km (0.102 R)
• M9: 5,917,344 km (0.101 R)
• M10: 7,120,410 km (0.09 R)
• M11: 9,030,027 km (0.066 R)
• M12: 9,695,438 km (0.114 R)
• M13: 10,721,679 km (0.118 R)
• M14: 11,748,519 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 81.9

Radius: 13.9

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.39 AU - 2.27 AU

Year: 1624 Days

Day: 11 Hours

Environment

Temp: -176 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 53,996,102 km

• M1: 172,935 km (0.093 R)
• M2: 691,741 km (0.032 R)
• M3: 1,216,829 km (0.1 R)
• M4: 3,266,470 km (0.114 R)
• M5: 3,925,448 km (0.102 R)
• M6: 6,276,678 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.6

Radius: 10

Gravity: 8.6 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.88 AU - 1.98 AU

Year: 1759 Days

Day: 9.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 53,996,102 km

• M1: 128,804 km (0.065 R)
• M2: 452,085 km (0.053 R)
• M3: 774,319 km (0.065 R)
• M4: 1,101,938 km (0.089 R)
• M5: 2,273,439 km (0.073 R)
• M6: 2,731,657 km (0.092 R)
• M7: 3,315,837 km (0.087 R)
• M8: 4,267,878 km (0.11 R)
• M9: 4,818,248 km (0.075 R)
• M10: 5,791,981 km (0.098 R)
• M11: 6,545,655 km (0.12 R)
• M12: 6,864,897 km (0.098 R)
• M13: 8,495,065 km (0.096 R)
• M14: 9,201,167 km (0.098 R)
• M15: 9,945,865 km (0.096 R)
• M16: 10,512,392 km (0.097 R)
• M17: 14,240,820 km (0.089 R)
• M18: 15,704,784 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832

Radius: 11.9

Gravity: 5.88 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 4.67 AU - 5.71 AU

Year: 7756 Days

Day: 11.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 53,996,102 km

• M1: 148,102 km (0.063 R)
• M2: 618,737 km (0.078 R)
• M3: 1,042,847 km (0.081 R)
• M4: 1,544,748 km (0.095 R)
• M5: 2,172,161 km (0.079 R)
• M6: 2,819,770 km (0.078 R)
• M7: 3,714,066 km (0.104 R)
• M8: 5,334,959 km (0.061 R)
• M9: 8,456,319 km (0.119 R)
• M10: 10,352,621 km (0.077 R)
• M11: 11,693,318 km (0.063 R)
• M12: 13,557,606 km (0.077 R)
• M13: 14,716,840 km (0.12 R)
• M14: 15,096,370 km (0.045 R)
• M15: 19,637,862 km (0.096 R)
• M16: 22,509,244 km (0.118 R)
• M17: 23,870,883 km (0.094 R)
• M18: 28,382,905 km (0.093 R)
• M19: 32,039,376 km (0.104 R)
• M20: 35,656,802 km (0.051 R)
• M21: 36,573,089 km (0.047 R)
• M22: 37,504,934 km (0.053 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 983

Radius: 6.8

Gravity: 21.26 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 5.55 AU - 6.73 AU

Year: 9981 Days

Day: 15.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 53,996,102 km

• M1: 84,822 km (0.119 R)
• M2: 393,742 km (0.118 R)
• M3: 1,032,076 km (0.084 R)
• M4: 1,496,876 km (0.046 R)
• M5: 1,867,729 km (0.091 R)
• M6: 2,093,323 km (0.039 R)
• M7: 3,746,080 km (0.09 R)
• M8: 4,021,939 km (0.095 R)
• M9: 6,945,530 km (0.049 R)
• M10: 7,621,264 km (0.064 R)
• M11: 8,247,779 km (0.054 R)
• M12: 8,763,742 km (0.098 R)
• M13: 12,023,031 km (0.08 R)
• M14: 30,137,089 km (0.093 R)
• M15: 33,309,911 km (0.088 R)
• M16: 34,735,429 km (0.104 R)
• M17: 36,077,471 km (0.098 R)
• M18: 38,218,815 km (0.054 R)
• M19: 41,384,157 km (0.063 R)
• M20: 44,719,890 km (0.119 R)
• M21: 45,725,636 km (0.032 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 428 - 16,977 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit