🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.72

Radius: 1.49

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.49 AU - 0.57 AU

Year: 253 Days

Day: 33.6 Hours

Environment

Temp: -124 °C

Axial Tilt: 6.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589.5

Radius: 13.4

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1 AU - 1.24 AU

Year: 778 Days

Day: 8.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 40,728,967 km

• M1: 166,652 km (0.116 R)
• M2: 588,967 km (0.117 R)
• M3: 1,100,891 km (0.048 R)
• M4: 1,603,689 km (0.095 R)
• M5: 2,115,912 km (0.057 R)
• M6: 2,647,733 km (0.104 R)
• M7: 3,385,250 km (0.095 R)
• M8: 3,868,003 km (0.103 R)
• M9: 4,334,000 km (0.056 R)
• M10: 5,271,829 km (0.105 R)
• M11: 6,021,464 km (0.117 R)
• M12: 6,819,718 km (0.089 R)
• M13: 7,255,796 km (0.092 R)
• M14: 8,281,589 km (0.046 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 510.9

Radius: 13.2

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.04 AU - 1.48 AU

Year: 928 Days

Day: 8.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 40,728,967 km

• M1: 164,258 km (0.109 R)
• M2: 610,659 km (0.092 R)
• M3: 1,400,834 km (0.074 R)
• M4: 1,951,055 km (0.048 R)
• M5: 2,655,512 km (0.042 R)
• M6: 3,510,464 km (0.116 R)
• M7: 4,018,049 km (0.11 R)
• M8: 4,709,042 km (0.095 R)
• M9: 6,022,511 km (0.085 R)
• M10: 6,560,315 km (0.05 R)
• M11: 7,404,197 km (0.058 R)
• M12: 8,419,817 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 223.8

Radius: 13

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.74 AU - 2.68 AU

Year: 2155 Days

Day: 8.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 40,728,967 km

• M1: 161,715 km (0.104 R)
• M2: 621,729 km (0.087 R)
• M3: 1,172,399 km (0.09 R)
• M4: 1,624,932 km (0.043 R)
• M5: 2,162,736 km (0.072 R)
• M6: 3,102,660 km (0.081 R)
• M7: 3,826,115 km (0.098 R)
• M8: 4,245,887 km (0.112 R)
• M9: 4,752,874 km (0.063 R)
• M10: 5,867,528 km (0.064 R)
• M11: 6,428,819 km (0.06 R)
• M12: 6,903,343 km (0.079 R)
• M13: 7,949,930 km (0.114 R)
• M14: 9,187,852 km (0.075 R)
• M15: 10,166,222 km (0.082 R)
• M16: 10,713,601 km (0.111 R)
• M17: 11,867,449 km (0.048 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 432.6

Radius: 10.9

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.98 AU - 2.44 AU

Year: 2155 Days

Day: 6.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 40,728,967 km

• M1: 137,480 km (0.06 R)
• M2: 531,072 km (0.1 R)
• M3: 1,190,051 km (0.039 R)
• M4: 1,775,727 km (0.034 R)
• M5: 2,612,577 km (0.073 R)
• M6: 3,833,146 km (0.084 R)
• M7: 4,482,102 km (0.067 R)
• M8: 5,740,519 km (0.098 R)
• M9: 6,901,099 km (0.032 R)
• M10: 7,329,996 km (0.12 R)
• M11: 8,510,772 km (0.099 R)
• M12: 11,246,469 km (0.104 R)
• M13: 11,879,417 km (0.118 R)
• M14: 12,457,463 km (0.117 R)
• M15: 12,853,299 km (0.099 R)
• M16: 14,048,586 km (0.119 R)
• M17: 14,477,633 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 776

Radius: 13.7

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 3.51 AU - 4.09 AU

Year: 4859 Days

Day: 7.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 40,728,967 km

• M1: 170,392 km (0.045 R)
• M2: 627,563 km (0.097 R)
• M3: 1,112,260 km (0.041 R)
• M4: 1,544,448 km (0.086 R)
• M5: 2,006,407 km (0.099 R)
• M6: 3,359,220 km (0.08 R)
• M7: 4,244,690 km (0.096 R)
• M8: 4,743,000 km (0.072 R)
• M9: 5,739,622 km (0.037 R)
• M10: 7,039,627 km (0.106 R)
• M11: 9,000,705 km (0.116 R)
• M12: 9,827,982 km (0.094 R)
• M13: 10,615,465 km (0.058 R)
• M14: 11,303,466 km (0.03 R)
• M15: 12,167,992 km (0.111 R)
• M16: 13,547,134 km (0.053 R)
• M17: 17,417,082 km (0.119 R)
• M18: 18,375,106 km (0.113 R)
• M19: 19,502,775 km (0.066 R)
• M20: 20,676,221 km (0.077 R)
• M21: 22,861,247 km (0.043 R)
• M22: 23,316,025 km (0.111 R)
• M23: 30,335,456 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 556

Radius: 5.2

Gravity: 20.56 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 6.49 AU - 7.99 AU

Year: 12780 Days

Day: 19.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 40,728,967 km

• M1: 74,350 km (0.069 R)
• M2: 314,006 km (0.119 R)
• M3: 551,717 km (0.04 R)
• M4: 738,565 km (0.11 R)
• M5: 906,264 km (0.102 R)
• M6: 1,206,806 km (0.055 R)
• M7: 1,661,883 km (0.112 R)
• M8: 2,224,221 km (0.037 R)
• M9: 3,330,497 km (0.117 R)
• M10: 3,558,185 km (0.046 R)
• M11: 3,742,490 km (0.068 R)
• M12: 3,933,227 km (0.093 R)
• M13: 5,183,566 km (0.067 R)
• M14: 6,176,447 km (0.102 R)
• M15: 6,520,822 km (0.075 R)
• M16: 6,797,428 km (0.106 R)
• M17: 7,206,279 km (0.103 R)
• M18: 7,849,999 km (0.055 R)
• M19: 8,672,039 km (0.049 R)
• M20: 9,499,764 km (0.056 R)
• M21: 10,272,736 km (0.037 R)
• M22: 13,915,594 km (0.089 R)
• M23: 14,978,936 km (0.041 R)
• M24: 16,673,879 km (0.115 R)
• M25: 17,042,339 km (0.117 R)
• M26: 18,414,152 km (0.069 R)
• M27: 21,986,100 km (0.08 R)
• M28: 22,697,887 km (0.049 R)
• M29: 23,150,570 km (0.093 R)
• M30: 26,191,146 km (0.088 R)
• M31: 30,681,925 km (0.1 R)
• M32: 31,682,585 km (0.119 R)
• M33: 35,055,119 km (0.083 R)
• M34: 41,016,146 km (0.077 R)
• M35: 41,418,115 km (0.069 R)
• M36: 42,639,582 km (0.059 R)
• M37: 43,052,023 km (0.108 R)
• M38: 47,324,090 km (0.091 R)
• M39: 51,402,876 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 232.4

Radius: 3.2

Gravity: 22.7 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 6.35 AU - 8.63 AU

Year: 13447 Days

Day: 19.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 40,728,967 km

• M1: 41,588 km (0.037 R)
• M2: 236,215 km (0.084 R)
• M3: 350,807 km (0.075 R)
• M4: 473,028 km (0.058 R)
• M5: 771,626 km (0.057 R)
• M6: 1,032,225 km (0.035 R)
• M7: 1,251,985 km (0.106 R)
• M8: 1,462,469 km (0.104 R)
• M9: 1,814,473 km (0.09 R)
• M10: 2,084,198 km (0.117 R)
• M11: 2,927,032 km (0.111 R)
• M12: 4,104,517 km (0.096 R)
• M13: 7,856,132 km (0.113 R)
• M14: 7,978,802 km (0.078 R)
• M15: 8,654,087 km (0.072 R)
• M16: 9,504,402 km (0.093 R)
• M17: 11,791,005 km (0.116 R)
• M18: 15,674,267 km (0.071 R)
• M19: 18,543,404 km (0.114 R)
• M20: 19,126,985 km (0.073 R)
• M21: 20,025,021 km (0.073 R)
• M22: 21,904,868 km (0.072 R)
• M23: 23,137,555 km (0.069 R)
• M24: 24,329,102 km (0.095 R)
• M25: 25,382,420 km (0.091 R)
• M26: 37,060,928 km (0.088 R)
• M27: 37,637,029 km (0.117 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 452 - 14,848 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit