🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.45

Radius: 0.73

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.6 AU - 0.7 AU

Year: 333 Days

Day: 37 Hours

Environment

Temp: -137 °C

Axial Tilt: 34.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822

Radius: 14.4

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.04 AU - 1.18 AU

Year: 744 Days

Day: 11.4 Hours

Environment

Temp: -170 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,805,717 km

• M1: 179,069 km (0.114 R)
• M2: 756,816 km (0.066 R)
• M3: 1,309,281 km (0.039 R)
• M4: 1,779,766 km (0.118 R)
• M5: 2,242,472 km (0.11 R)
• M6: 2,810,495 km (0.104 R)
• M7: 3,641,511 km (0.062 R)
• M8: 4,240,800 km (0.026 R)
• M9: 4,784,140 km (0.101 R)
• M10: 5,638,793 km (0.109 R)
• M11: 6,235,987 km (0.115 R)
• M12: 8,641,222 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403.9

Radius: 9.3

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.06 AU - 1.26 AU

Year: 794 Days

Day: 12.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,805,717 km

• M1: 115,639 km (0.116 R)
• M2: 456,722 km (0.09 R)
• M3: 813,513 km (0.097 R)
• M4: 1,149,660 km (0.118 R)
• M5: 1,469,799 km (0.066 R)
• M6: 1,816,417 km (0.067 R)
• M7: 2,151,666 km (0.107 R)
• M8: 3,188,080 km (0.075 R)
• M9: 3,532,455 km (0.065 R)
• M10: 4,206,393 km (0.1 R)
• M11: 4,831,562 km (0.086 R)
• M12: 5,680,381 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 87.1

Radius: 9

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.71 AU - 2.17 AU

Year: 1718 Days

Day: 14.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,805,717 km

• M1: 113,545 km (0.095 R)
• M2: 480,508 km (0.078 R)
• M3: 854,353 km (0.104 R)
• M4: 1,736,682 km (0.08 R)
• M5: 2,053,380 km (0.063 R)
• M6: 2,907,883 km (0.111 R)
• M7: 3,383,904 km (0.119 R)
• M8: 3,854,389 km (0.082 R)
• M9: 4,142,664 km (0.067 R)
• M10: 4,523,092 km (0.113 R)
• M11: 5,659,138 km (0.119 R)
• M12: 6,766,910 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 641.8

Radius: 12.1

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 3.57 AU - 3.73 AU

Year: 4434 Days

Day: 10.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 50,805,717 km

• M1: 157,527 km (0.118 R)
• M2: 638,185 km (0.117 R)
• M3: 1,557,912 km (0.056 R)
• M4: 2,460,735 km (0.043 R)
• M5: 3,093,983 km (0.052 R)
• M6: 5,333,463 km (0.087 R)
• M7: 6,067,540 km (0.118 R)
• M8: 6,867,739 km (0.116 R)
• M9: 7,983,290 km (0.105 R)
• M10: 8,528,724 km (0.116 R)
• M11: 9,533,124 km (0.111 R)
• M12: 11,096,272 km (0.095 R)
• M13: 13,573,314 km (0.104 R)
• M14: 15,602,310 km (0.084 R)
• M15: 16,398,470 km (0.12 R)
• M16: 19,529,254 km (0.092 R)
• M17: 19,922,098 km (0.083 R)
• M18: 20,588,557 km (0.081 R)
• M19: 23,403,839 km (0.036 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 498.3

Radius: 8.7

Gravity: 6.58 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 4.19 AU - 6.71 AU

Year: 8090 Days

Day: 8.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 50,805,717 km

• M1: 108,159 km (0.09 R)
• M2: 380,727 km (0.095 R)
• M3: 1,156,691 km (0.038 R)
• M4: 1,523,804 km (0.105 R)
• M5: 1,922,931 km (0.032 R)
• M6: 2,425,729 km (0.091 R)
• M7: 2,853,430 km (0.05 R)
• M8: 3,287,114 km (0.054 R)
• M9: 3,670,085 km (0.117 R)
• M10: 4,082,526 km (0.079 R)
• M11: 5,446,858 km (0.103 R)
• M12: 6,249,601 km (0.097 R)
• M13: 6,522,617 km (0.119 R)
• M14: 7,165,888 km (0.096 R)
• M15: 8,209,482 km (0.035 R)
• M16: 9,306,932 km (0.119 R)
• M17: 11,585,457 km (0.039 R)
• M18: 12,582,228 km (0.083 R)
• M19: 13,635,098 km (0.101 R)
• M20: 17,345,424 km (0.103 R)
• M21: 19,072,532 km (0.036 R)
• M22: 19,794,491 km (0.027 R)
• M23: 21,991,037 km (0.042 R)
• M24: 22,306,389 km (0.081 R)
• M25: 26,594,612 km (0.101 R)
• M26: 27,586,595 km (0.092 R)
• M27: 28,045,562 km (0.061 R)
• M28: 30,514,824 km (0.118 R)
• M29: 31,203,722 km (0.092 R)
• M30: 32,612,336 km (0.1 R)
• M31: 34,804,094 km (0.1 R)
• M32: 35,772,740 km (0.045 R)
• M33: 36,099,612 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846.8

Radius: 10.7

Gravity: 7.4 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 5.8 AU - 6.18 AU

Year: 9321 Days

Day: 11.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 50,805,717 km

• M1: 133,142 km (0.056 R)
• M2: 474,225 km (0.053 R)
• M3: 1,173,595 km (0.117 R)
• M4: 1,619,846 km (0.05 R)
• M5: 1,957,189 km (0.088 R)
• M6: 2,474,648 km (0.105 R)
• M7: 3,556,689 km (0.114 R)
• M8: 4,929,399 km (0.085 R)
• M9: 6,703,780 km (0.094 R)
• M10: 7,056,382 km (0.089 R)
• M11: 8,189,436 km (0.04 R)
• M12: 8,776,608 km (0.078 R)
• M13: 9,294,965 km (0.086 R)
• M14: 10,290,090 km (0.078 R)
• M15: 13,453,785 km (0.049 R)
• M16: 14,791,190 km (0.117 R)
• M17: 15,526,165 km (0.072 R)
• M18: 17,507,140 km (0.1 R)
• M19: 21,538,653 km (0.116 R)
• M20: 24,087,052 km (0.062 R)
• M21: 25,861,881 km (0.105 R)
• M22: 27,125,535 km (0.111 R)
• M23: 29,461,057 km (0.109 R)
• M24: 34,995,280 km (0.101 R)
• M25: 47,922,930 km (0.116 R)
• M26: 48,503,370 km (0.085 R)
• M27: 49,088,447 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 769.7

Radius: 6.5

Gravity: 18.22 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 6.2 AU - 6.6 AU

Year: 10294 Days

Day: 19.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 50,805,717 km

• M1: 80,932 km (0.037 R)
• M2: 288,574 km (0.091 R)
• M3: 689,945 km (0.118 R)
• M4: 1,369,868 km (0.072 R)
• M5: 1,696,739 km (0.049 R)
• M6: 2,145,682 km (0.089 R)
• M7: 2,864,201 km (0.077 R)
• M8: 3,732,616 km (0.118 R)
• M9: 4,170,340 km (0.119 R)
• M10: 5,148,112 km (0.093 R)
• M11: 6,613,572 km (0.119 R)
• M12: 7,675,418 km (0.074 R)
• M13: 8,157,273 km (0.07 R)
• M14: 9,977,879 km (0.114 R)
• M15: 11,822,421 km (0.056 R)
• M16: 12,405,553 km (0.093 R)
• M17: 12,885,613 km (0.076 R)
• M18: 13,253,773 km (0.116 R)
• M19: 14,863,745 km (0.078 R)
• M20: 18,544,451 km (0.119 R)
• M21: 21,652,048 km (0.117 R)
• M22: 24,338,078 km (0.051 R)
• M23: 24,806,319 km (0.112 R)
• M24: 25,664,412 km (0.103 R)
• M25: 26,247,246 km (0.095 R)
• M26: 30,360,888 km (0.092 R)
• M27: 32,008,260 km (0.09 R)
• M28: 36,936,163 km (0.058 R)
• M29: 37,306,418 km (0.041 R)
• M30: 37,803,831 km (0.112 R)
• M31: 42,346,669 km (0.099 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 187 - 13,276 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit