🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 841.9

Radius: 13.8

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.5 AU - 0.78 AU

Year: 360 Days

Day: 10.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,972,094 km

• M1: 171,888 km (0.119 R)
• M2: 686,056 km (0.072 R)
• M3: 1,230,143 km (0.088 R)
• M4: 1,731,296 km (0.108 R)
• M5: 2,239,031 km (0.079 R)
• M6: 2,939,000 km (0.09 R)
• M7: 3,421,752 km (0.069 R)
• M8: 3,932,180 km (0.107 R)
• M9: 4,368,707 km (0.086 R)
• M10: 4,852,506 km (0.109 R)
• M11: 5,531,980 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 457.2

Radius: 14.3

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.73 AU - 0.73 AU

Year: 438 Days

Day: 6.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,972,094 km

• M1: 177,872 km (0.091 R)
• M2: 642,373 km (0.114 R)
• M3: 1,253,630 km (0.11 R)
• M4: 1,718,132 km (0.074 R)
• M5: 2,528,503 km (0.115 R)
• M6: 3,002,579 km (0.096 R)
• M7: 3,931,282 km (0.115 R)
• M8: 4,726,545 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.3

Radius: 12.6

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.13 AU - 1.53 AU

Year: 1078 Days

Day: 8.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,972,094 km

• M1: 156,779 km (0.079 R)
• M2: 684,261 km (0.042 R)
• M3: 1,516,922 km (0.075 R)
• M4: 2,274,785 km (0.088 R)
• M5: 3,015,295 km (0.032 R)
• M6: 3,816,690 km (0.097 R)
• M7: 4,586,372 km (0.079 R)
• M8: 5,321,495 km (0.063 R)
• M9: 6,096,861 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.3

Radius: 14.6

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.98 AU - 2.24 AU

Year: 2154 Days

Day: 12.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 55,972,094 km

• M1: 181,761 km (0.114 R)
• M2: 941,569 km (0.045 R)
• M3: 1,589,926 km (0.103 R)
• M4: 2,062,057 km (0.075 R)
• M5: 2,731,508 km (0.074 R)
• M6: 3,250,612 km (0.055 R)
• M7: 3,892,237 km (0.074 R)
• M8: 5,013,473 km (0.099 R)
• M9: 5,874,110 km (0.115 R)
• M10: 7,347,948 km (0.095 R)
• M11: 9,751,986 km (0.085 R)
• M12: 10,297,121 km (0.038 R)
• M13: 10,862,451 km (0.034 R)
• M14: 11,973,365 km (0.075 R)
• M15: 12,641,319 km (0.1 R)
• M16: 14,098,103 km (0.102 R)
• M17: 14,890,822 km (0.09 R)
• M18: 16,565,720 km (0.081 R)
• M19: 17,929,006 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.3

Radius: 9.7

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 2.96 AU - 3.32 AU

Year: 3911 Days

Day: 12.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 55,972,094 km

• M1: 124,914 km (0.033 R)
• M2: 917,334 km (0.116 R)
• M3: 1,322,296 km (0.079 R)
• M4: 3,605,309 km (0.116 R)
• M5: 5,465,409 km (0.065 R)
• M6: 9,670,006 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 986.5

Radius: 10.7

Gravity: 8.62 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 3.24 AU - 4.08 AU

Year: 4922 Days

Day: 12.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 55,972,094 km

• M1: 136,732 km (0.053 R)
• M2: 621,280 km (0.067 R)
• M3: 1,004,699 km (0.115 R)
• M4: 1,442,423 km (0.083 R)
• M5: 2,126,833 km (0.11 R)
• M6: 2,483,624 km (0.071 R)
• M7: 2,957,251 km (0.106 R)
• M8: 3,622,662 km (0.116 R)
• M9: 4,436,026 km (0.087 R)
• M10: 4,831,712 km (0.075 R)
• M11: 5,664,224 km (0.101 R)
• M12: 6,758,981 km (0.107 R)
• M13: 7,875,131 km (0.05 R)
• M14: 8,221,151 km (0.076 R)
• M15: 10,196,591 km (0.114 R)
• M16: 10,747,859 km (0.087 R)
• M17: 11,222,383 km (0.107 R)
• M18: 12,782,839 km (0.098 R)
• M19: 16,144,303 km (0.09 R)
• M20: 18,127,672 km (0.087 R)
• M21: 18,462,023 km (0.113 R)
• M22: 20,268,268 km (0.06 R)
• M23: 20,846,912 km (0.036 R)
• M24: 22,341,993 km (0.111 R)
• M25: 23,987,420 km (0.094 R)
• M26: 25,796,358 km (0.09 R)
• M27: 30,430,451 km (0.119 R)
• M28: 30,998,474 km (0.085 R)
• M29: 33,042,579 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 592.5

Radius: 13.2

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 3.71 AU - 4.91 AU

Year: 6290 Days

Day: 6 Hours

Environment

Temp: -212 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 55,972,094 km

• M1: 165,006 km (0.115 R)
• M2: 685,457 km (0.102 R)
• M3: 1,110,764 km (0.12 R)
• M4: 1,773,184 km (0.055 R)
• M5: 2,600,759 km (0.084 R)
• M6: 3,496,850 km (0.095 R)
• M7: 3,970,178 km (0.034 R)
• M8: 5,867,528 km (0.115 R)
• M9: 6,946,577 km (0.057 R)
• M10: 9,453,538 km (0.12 R)
• M11: 10,243,116 km (0.037 R)
• M12: 16,118,273 km (0.063 R)
• M13: 21,162,863 km (0.069 R)
• M14: 22,821,903 km (0.033 R)
• M15: 24,892,637 km (0.085 R)
• M16: 26,568,582 km (0.108 R)
• M17: 29,772,968 km (0.078 R)
• M18: 31,564,104 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836.1

Radius: 13.2

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 4.54 AU - 4.74 AU

Year: 7026 Days

Day: 8.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 55,972,094 km

• M1: 164,109 km (0.115 R)
• M2: 587,620 km (0.105 R)
• M3: 1,068,278 km (0.116 R)
• M4: 2,429,320 km (0.042 R)
• M5: 2,963,384 km (0.087 R)
• M6: 3,838,233 km (0.088 R)
• M7: 4,512,620 km (0.11 R)
• M8: 6,373,019 km (0.076 R)
• M9: 7,207,027 km (0.104 R)
• M10: 8,487,136 km (0.093 R)
• M11: 8,916,781 km (0.109 R)
• M12: 9,497,071 km (0.108 R)
• M13: 10,293,979 km (0.105 R)
• M14: 11,703,191 km (0.109 R)
• M15: 14,963,826 km (0.118 R)
• M16: 17,863,482 km (0.056 R)
• M17: 19,077,917 km (0.102 R)
• M18: 20,653,332 km (0.086 R)
• M19: 22,071,221 km (0.075 R)
• M20: 23,301,813 km (0.112 R)
• M21: 25,012,914 km (0.081 R)
• M22: 25,899,131 km (0.097 R)
• M23: 30,248,241 km (0.028 R)
• M24: 33,439,612 km (0.085 R)
• M25: 37,996,513 km (0.075 R)
• M26: 39,404,827 km (0.101 R)
• M27: 40,242,276 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 329.3

Radius: 6.9

Gravity: 6.92 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 6.92 AU - 8.68 AU

Year: 15313 Days

Day: 19.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 47.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 55,972,094 km

• M1: 87,664 km (0.107 R)
• M2: 521,199 km (0.072 R)
• M3: 774,169 km (0.099 R)
• M4: 1,351,318 km (0.114 R)
• M5: 2,467,766 km (0.086 R)
• M6: 2,754,097 km (0.077 R)
• M7: 6,348,036 km (0.092 R)
• M8: 6,614,320 km (0.076 R)
• M9: 8,925,308 km (0.109 R)
• M10: 10,209,755 km (0.094 R)
• M11: 12,243,688 km (0.062 R)
• M12: 14,015,825 km (0.112 R)
• M13: 19,698,300 km (0.116 R)
• M14: 19,940,050 km (0.117 R)
• M15: 22,293,374 km (0.107 R)
• M16: 24,452,670 km (0.076 R)
• M17: 29,286,626 km (0.101 R)
• M18: 29,601,828 km (0.105 R)
• M19: 36,631,731 km (0.086 R)
• M20: 44,282,466 km (0.043 R)
• M21: 46,384,615 km (0.104 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 403.3

Radius: 7.8

Gravity: 6.63 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 7.9 AU - 8.46 AU

Year: 16445 Days

Day: 22.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,972,094 km

• M1: 96,939 km (0.082 R)
• M2: 386,262 km (0.099 R)
• M3: 660,026 km (0.082 R)
• M4: 1,473,838 km (0.079 R)
• M5: 2,431,564 km (0.066 R)
• M6: 3,211,717 km (0.051 R)
• M7: 3,566,862 km (0.103 R)
• M8: 3,891,938 km (0.06 R)
• M9: 4,296,152 km (0.069 R)
• M10: 5,054,014 km (0.073 R)
• M11: 6,792,192 km (0.106 R)
• M12: 7,081,365 km (0.099 R)
• M13: 8,228,631 km (0.082 R)
• M14: 9,292,122 km (0.05 R)
• M15: 16,602,970 km (0.046 R)
• M16: 18,293,276 km (0.041 R)
• M17: 20,435,219 km (0.099 R)
• M18: 24,916,423 km (0.095 R)
• M19: 26,714,739 km (0.097 R)
• M20: 30,122,429 km (0.11 R)
• M21: 41,787,772 km (0.112 R)
• M22: 43,464,614 km (0.117 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 191 - 13,668 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit