🌌 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: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.57

Radius: 1.2

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.47 AU - 0.71 AU

Year: 293 Days

Day: 42.8 Hours

Environment

Temp: -130 °C

Axial Tilt: 16.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,708,314 km

• M1: 45,627 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 661.5

Radius: 14.3

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.69 AU - 0.97 AU

Year: 488 Days

Day: 13.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,708,314 km

• M1: 177,872 km (0.062 R)
• M2: 828,772 km (0.096 R)
• M3: 1,486,704 km (0.091 R)
• M4: 1,994,888 km (0.064 R)
• M5: 2,570,690 km (0.094 R)
• M6: 3,108,195 km (0.092 R)
• M7: 3,707,783 km (0.085 R)
• M8: 4,256,359 km (0.117 R)
• M9: 4,752,276 km (0.068 R)
• M10: 5,303,245 km (0.087 R)
• M11: 5,931,855 km (0.046 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 324.6

Radius: 13.2

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.97 AU - 1.05 AU

Year: 655 Days

Day: 14 Hours

Environment

Temp: -161 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 45,708,314 km

• M1: 164,109 km (0.114 R)
• M2: 608,265 km (0.115 R)
• M3: 1,039,107 km (0.085 R)
• M4: 1,492,538 km (0.066 R)
• M5: 2,039,019 km (0.072 R)
• M6: 2,862,406 km (0.079 R)
• M7: 3,679,808 km (0.083 R)
• M8: 4,233,321 km (0.105 R)
• M9: 4,706,798 km (0.098 R)
• M10: 5,136,144 km (0.106 R)
• M11: 5,591,968 km (0.087 R)
• M12: 6,003,961 km (0.042 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572.8

Radius: 8.7

Gravity: 7.57 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.68 AU - 1.72 AU

Year: 1431 Days

Day: 12.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 45,708,314 km

• M1: 108,458 km (0.075 R)
• M2: 391,647 km (0.108 R)
• M3: 665,411 km (0.057 R)
• M4: 996,322 km (0.105 R)
• M5: 1,300,305 km (0.084 R)
• M6: 1,790,836 km (0.107 R)
• M7: 2,190,711 km (0.109 R)
• M8: 2,510,252 km (0.026 R)
• M9: 2,971,014 km (0.073 R)
• M10: 3,333,789 km (0.046 R)
• M11: 3,629,244 km (0.099 R)
• M12: 4,454,725 km (0.106 R)
• M13: 5,548,435 km (0.106 R)
• M14: 5,920,186 km (0.082 R)
• M15: 6,985,323 km (0.027 R)
• M16: 7,576,683 km (0.113 R)
• M17: 10,345,740 km (0.064 R)
• M18: 10,876,364 km (0.036 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.6

Radius: 8

Gravity: 12.98 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.83 AU - 1.91 AU

Year: 1651 Days

Day: 10.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 45,708,314 km

• M1: 101,128 km (0.082 R)
• M2: 449,542 km (0.102 R)
• M3: 716,275 km (0.06 R)
• M4: 1,055,862 km (0.111 R)
• M5: 1,520,214 km (0.048 R)
• M6: 2,261,022 km (0.104 R)
• M7: 2,560,068 km (0.034 R)
• M8: 2,885,444 km (0.045 R)
• M9: 3,175,065 km (0.12 R)
• M10: 4,493,621 km (0.119 R)
• M11: 4,841,885 km (0.112 R)
• M12: 5,686,215 km (0.115 R)
• M13: 6,267,852 km (0.049 R)
• M14: 6,861,905 km (0.062 R)
• M15: 7,606,453 km (0.073 R)
• M16: 8,191,979 km (0.108 R)
• M17: 8,619,381 km (0.11 R)
• M18: 9,652,354 km (0.118 R)
• M19: 10,765,512 km (0.086 R)
• M20: 13,537,411 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.9

Radius: 10.8

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 2.3 AU - 3.04 AU

Year: 2817 Days

Day: 9.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 70.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 45,708,314 km

• M1: 134,638 km (0.047 R)
• M2: 516,561 km (0.106 R)
• M3: 1,777,223 km (0.077 R)
• M4: 2,223,174 km (0.055 R)
• M5: 2,920,001 km (0.029 R)
• M6: 3,404,548 km (0.11 R)
• M7: 4,098,533 km (0.114 R)
• M8: 5,548,136 km (0.1 R)
• M9: 7,313,840 km (0.114 R)
• M10: 7,740,343 km (0.112 R)
• M11: 8,098,930 km (0.101 R)
• M12: 8,613,845 km (0.077 R)
• M13: 9,868,523 km (0.077 R)
• M14: 10,963,878 km (0.083 R)
• M15: 11,311,394 km (0.091 R)
• M16: 12,138,521 km (0.066 R)
• M17: 12,928,547 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 895.3

Radius: 10.2

Gravity: 8.61 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 3.18 AU - 3.6 AU

Year: 4030 Days

Day: 13.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 45,708,314 km

• M1: 127,009 km (0.075 R)
• M2: 535,261 km (0.06 R)
• M3: 887,863 km (0.109 R)
• M4: 1,751,342 km (0.083 R)
• M5: 2,312,185 km (0.099 R)
• M6: 2,635,316 km (0.103 R)
• M7: 3,558,634 km (0.062 R)
• M8: 5,206,903 km (0.092 R)
• M9: 5,855,261 km (0.064 R)
• M10: 7,278,834 km (0.08 R)
• M11: 8,726,941 km (0.092 R)
• M12: 9,724,460 km (0.1 R)
• M13: 10,186,867 km (0.084 R)
• M14: 10,840,759 km (0.057 R)
• M15: 12,623,068 km (0.094 R)
• M16: 15,822,518 km (0.109 R)
• M17: 16,227,928 km (0.062 R)
• M18: 16,878,978 km (0.102 R)
• M19: 20,603,666 km (0.065 R)
• M20: 23,098,210 km (0.117 R)
• M21: 23,545,209 km (0.094 R)
• M22: 24,920,911 km (0.11 R)
• M23: 26,027,486 km (0.111 R)
• M24: 28,423,147 km (0.029 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 929.5

Radius: 13.1

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 4 AU - 5.62 AU

Year: 6811 Days

Day: 5.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 45,708,314 km

• M1: 164,558 km (0.058 R)
• M2: 667,356 km (0.085 R)
• M3: 1,160,879 km (0.087 R)
• M4: 1,619,995 km (0.11 R)
• M5: 2,218,836 km (0.115 R)
• M6: 2,861,059 km (0.041 R)
• M7: 4,068,314 km (0.045 R)
• M8: 4,575,900 km (0.072 R)
• M9: 5,065,833 km (0.112 R)
• M10: 5,495,478 km (0.118 R)
• M11: 6,117,805 km (0.103 R)
• M12: 8,023,233 km (0.037 R)
• M13: 8,738,760 km (0.087 R)
• M14: 9,680,777 km (0.103 R)
• M15: 10,152,759 km (0.111 R)
• M16: 10,990,208 km (0.093 R)
• M17: 11,767,069 km (0.113 R)
• M18: 13,958,678 km (0.098 R)
• M19: 14,932,111 km (0.106 R)
• M20: 16,015,499 km (0.094 R)
• M21: 19,580,716 km (0.114 R)
• M22: 22,313,719 km (0.113 R)
• M23: 23,306,600 km (0.101 R)
• M24: 26,008,039 km (0.069 R)
• M25: 27,952,512 km (0.118 R)
• M26: 28,911,883 km (0.119 R)
• M27: 30,794,722 km (0.07 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842.5

Radius: 10.2

Gravity: 8.1 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 4.98 AU - 6.08 AU

Year: 8397 Days

Day: 9.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 45,708,314 km

• M1: 127,457 km (0.09 R)
• M2: 555,008 km (0.088 R)
• M3: 873,801 km (0.106 R)
• M4: 3,222,637 km (0.114 R)
• M5: 3,957,013 km (0.11 R)
• M6: 5,655,248 km (0.096 R)
• M7: 7,028,706 km (0.12 R)
• M8: 9,440,822 km (0.094 R)
• M9: 19,126,686 km (0.07 R)
• M10: 19,978,496 km (0.09 R)
• M11: 20,373,884 km (0.086 R)
• M12: 23,029,695 km (0.092 R)
• M13: 25,628,658 km (0.118 R)
• M14: 27,143,187 km (0.075 R)
• M15: 31,936,453 km (0.078 R)
• M16: 37,265,727 km (0.081 R)
• M17: 40,202,932 km (0.103 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: 525 - 16,624 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit