🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.63

Radius: 0.83

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.6 AU - 0.6 AU

Year: 300 Days

Day: 33.2 Hours

Environment

Temp: -123 °C

Axial Tilt: 7.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 943.4

Radius: 14.7

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.69 AU - 0.81 AU

Year: 419 Days

Day: 11.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 50,162,204 km

• M1: 182,809 km (0.109 R)
• M2: 642,822 km (0.115 R)
• M3: 1,229,096 km (0.095 R)
• M4: 1,997,431 km (0.107 R)
• M5: 2,576,225 km (0.088 R)
• M6: 3,409,186 km (0.078 R)
• M7: 4,010,270 km (0.09 R)
• M8: 4,577,246 km (0.115 R)
• M9: 5,149,009 km (0.12 R)
• M10: 6,214,894 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 446.1

Radius: 12.9

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.11 AU - 1.17 AU

Year: 786 Days

Day: 11.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,162,204 km

• M1: 160,369 km (0.053 R)
• M2: 582,983 km (0.111 R)
• M3: 1,258,866 km (0.118 R)
• M4: 1,669,811 km (0.099 R)
• M5: 2,590,736 km (0.06 R)
• M6: 3,895,977 km (0.094 R)
• M7: 5,007,190 km (0.045 R)
• M8: 5,636,997 km (0.067 R)
• M9: 6,299,566 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381.9

Radius: 10.2

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 2.87 AU - 3.73 AU

Year: 3871 Days

Day: 6.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 50,162,204 km

• M1: 127,457 km (0.088 R)
• M2: 480,359 km (0.042 R)
• M3: 841,787 km (0.097 R)
• M4: 1,572,722 km (0.102 R)
• M5: 1,986,959 km (0.111 R)
• M6: 2,330,735 km (0.112 R)
• M7: 2,668,078 km (0.12 R)
• M8: 3,298,035 km (0.105 R)
• M9: 5,042,346 km (0.082 R)
• M10: 5,535,271 km (0.106 R)
• M11: 6,791,444 km (0.092 R)
• M12: 7,209,121 km (0.069 R)
• M13: 7,835,488 km (0.102 R)
• M14: 8,948,047 km (0.096 R)
• M15: 9,783,551 km (0.109 R)
• M16: 10,910,173 km (0.115 R)
• M17: 11,525,918 km (0.08 R)
• M18: 12,207,934 km (0.087 R)
• M19: 13,419,677 km (0.107 R)
• M20: 14,611,523 km (0.114 R)
• M21: 16,503,039 km (0.115 R)
• M22: 18,152,206 km (0.097 R)
• M23: 18,609,975 km (0.105 R)
• M24: 18,958,389 km (0.11 R)
• M25: 19,311,140 km (0.119 R)
• M26: 19,728,219 km (0.085 R)
• M27: 20,580,329 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 965.8

Radius: 9.9

Gravity: 9.85 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 5.26 AU - 5.84 AU

Year: 8442 Days

Day: 6 Hours

Environment

Temp: -220 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 50,162,204 km

• M1: 123,568 km (0.1 R)
• M2: 506,239 km (0.1 R)
• M3: 853,605 km (0.12 R)
• M4: 1,442,123 km (0.095 R)
• M5: 1,767,050 km (0.072 R)
• M6: 3,096,826 km (0.079 R)
• M7: 3,721,845 km (0.066 R)
• M8: 4,969,043 km (0.053 R)
• M9: 5,419,033 km (0.099 R)
• M10: 6,037,471 km (0.105 R)
• M11: 6,934,460 km (0.104 R)
• M12: 9,661,180 km (0.116 R)
• M13: 10,466,765 km (0.1 R)
• M14: 11,646,793 km (0.088 R)
• M15: 12,384,609 km (0.111 R)
• M16: 13,032,817 km (0.075 R)
• M17: 14,397,299 km (0.091 R)
• M18: 14,785,356 km (0.055 R)
• M19: 15,923,048 km (0.113 R)
• M20: 18,905,581 km (0.106 R)
• M21: 20,084,113 km (0.086 R)
• M22: 23,111,375 km (0.106 R)
• M23: 23,913,220 km (0.089 R)
• M24: 25,010,969 km (0.085 R)
• M25: 27,405,582 km (0.118 R)
• M26: 28,506,173 km (0.083 R)
• M27: 29,221,550 km (0.085 R)
• M28: 29,635,787 km (0.11 R)
• M29: 34,339,443 km (0.117 R)
• M30: 36,328,646 km (0.109 R)
• M31: 47,295,666 km (0.082 R)
• M32: 47,866,831 km (0.111 R)

Asteroid Belt

Center: 5.84 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 6.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 856.8

Radius: 6.6

Gravity: 19.67 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 5.1 AU - 7.16 AU

Year: 9800 Days

Day: 17.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 50,162,204 km

• M1: 82,279 km (0.092 R)
• M2: 294,409 km (0.112 R)
• M3: 501,302 km (0.11 R)
• M4: 867,368 km (0.062 R)
• M5: 1,151,604 km (0.091 R)
• M6: 1,877,154 km (0.054 R)
• M7: 2,207,616 km (0.079 R)
• M8: 2,743,326 km (0.026 R)
• M9: 3,193,466 km (0.102 R)
• M10: 3,461,396 km (0.089 R)
• M11: 3,878,026 km (0.106 R)
• M12: 4,474,772 km (0.073 R)
• M13: 6,103,743 km (0.113 R)
• M14: 6,555,977 km (0.092 R)
• M15: 8,362,371 km (0.103 R)
• M16: 9,753,033 km (0.115 R)
• M17: 10,743,820 km (0.077 R)
• M18: 13,796,065 km (0.108 R)
• M19: 14,052,476 km (0.106 R)
• M20: 15,177,452 km (0.119 R)
• M21: 15,936,661 km (0.105 R)
• M22: 16,648,597 km (0.076 R)
• M23: 17,233,226 km (0.05 R)
• M24: 18,911,714 km (0.079 R)
• M25: 20,116,575 km (0.096 R)
• M26: 21,032,114 km (0.077 R)
• M27: 22,149,610 km (0.045 R)
• M28: 23,035,828 km (0.084 R)
• M29: 25,068,115 km (0.06 R)
• M30: 25,450,039 km (0.08 R)
• M31: 27,620,554 km (0.113 R)
• M32: 30,557,459 km (0.078 R)
• M33: 31,103,043 km (0.073 R)
• M34: 32,101,160 km (0.119 R)
• M35: 34,395,692 km (0.045 R)
• M36: 39,565,346 km (0.066 R)
• M37: 43,559,609 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 134.4

Radius: 3.4

Gravity: 11.63 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 8.5 AU - 13.88 AU

Year: 24169 Days

Day: 22.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 50,162,204 km

• M1: 47,423 km (0.085 R)
• M2: 195,076 km (0.088 R)
• M3: 324,927 km (0.107 R)
• M4: 561,590 km (0.088 R)
• M5: 779,405 km (0.103 R)
• M6: 985,551 km (0.095 R)
• M7: 1,762,861 km (0.078 R)
• M8: 2,706,525 km (0.05 R)
• M9: 2,902,498 km (0.106 R)
• M10: 3,322,718 km (0.053 R)
• M11: 4,139,373 km (0.114 R)
• M12: 4,429,144 km (0.057 R)
• M13: 7,089,593 km (0.117 R)
• M14: 7,253,402 km (0.062 R)
• M15: 8,022,335 km (0.084 R)
• M16: 8,986,344 km (0.11 R)
• M17: 9,922,827 km (0.095 R)
• M18: 11,196,204 km (0.107 R)
• M19: 14,386,229 km (0.059 R)
• M20: 18,285,647 km (0.109 R)
• M21: 20,683,252 km (0.093 R)
• M22: 22,657,346 km (0.115 R)
• M23: 30,067,975 km (0.118 R)
• M24: 31,478,534 km (0.082 R)
• M25: 32,256,143 km (0.076 R)
• M26: 33,965,299 km (0.104 R)
• M27: 34,081,237 km (0.05 R)
• M28: 35,137,548 km (0.112 R)
• M29: 35,256,329 km (0.095 R)
• M30: 36,579,671 km (0.117 R)
• M31: 39,709,857 km (0.107 R)
• M32: 44,802,169 km (0.101 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: 529 - 13,490 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit