🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.19

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.51 AU - 0.65 AU

Year: 285 Days

Day: 46.3 Hours

Environment

Temp: -130 °C

Axial Tilt: 35.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 552.6

Radius: 8.6

Gravity: 7.47 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.82 AU - 0.94 AU

Year: 533 Days

Day: 12.5 Hours

Environment

Temp: -162 °C

Axial Tilt: 109.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,264,413 km

• M1: 106,962 km (0.089 R)
• M2: 401,670 km (0.116 R)
• M3: 1,074,412 km (0.055 R)
• M4: 1,675,347 km (0.083 R)
• M5: 2,077,765 km (0.064 R)
• M6: 2,454,901 km (0.108 R)
• M7: 2,802,118 km (0.105 R)
• M8: 3,216,803 km (0.113 R)
• M9: 3,828,958 km (0.11 R)
• M10: 4,141,916 km (0.112 R)
• M11: 4,472,079 km (0.113 R)
• M12: 4,928,951 km (0.115 R)
• M13: 5,450,449 km (0.058 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 823.8

Radius: 11.1

Gravity: 6.69 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.89 AU - 1.03 AU

Year: 607 Days

Day: 8.7 Hours

Environment

Temp: -157 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,264,413 km

• M1: 138,079 km (0.113 R)
• M2: 555,906 km (0.084 R)
• M3: 1,170,454 km (0.102 R)
• M4: 1,563,447 km (0.118 R)
• M5: 1,991,148 km (0.102 R)
• M6: 2,413,612 km (0.102 R)
• M7: 3,098,920 km (0.1 R)
• M8: 3,588,554 km (0.104 R)
• M9: 4,326,819 km (0.117 R)
• M10: 5,797,665 km (0.075 R)
• M11: 6,341,903 km (0.114 R)
• M12: 6,962,435 km (0.108 R)
• M13: 7,354,082 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 680.7

Radius: 14.6

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 2.06 AU - 2.12 AU

Year: 1951 Days

Day: 10 Hours

Environment

Temp: -199 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,264,413 km

• M1: 182,659 km (0.071 R)
• M2: 795,861 km (0.104 R)
• M3: 1,573,919 km (0.072 R)
• M4: 2,053,081 km (0.107 R)
• M5: 2,536,581 km (0.068 R)
• M6: 3,035,490 km (0.107 R)
• M7: 3,845,862 km (0.118 R)
• M8: 4,410,744 km (0.103 R)
• M9: 5,851,222 km (0.114 R)
• M10: 6,601,754 km (0.074 R)
• M11: 7,557,834 km (0.109 R)
• M12: 8,449,288 km (0.116 R)
• M13: 9,081,788 km (0.098 R)
• M14: 10,370,723 km (0.104 R)
• M15: 11,170,922 km (0.089 R)
• M16: 13,184,808 km (0.113 R)
• M17: 13,863,833 km (0.117 R)
• M18: 14,700,384 km (0.12 R)
• M19: 15,805,015 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 131

Radius: 8.7

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.67 AU - 3.39 AU

Year: 3405 Days

Day: 14.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,264,413 km

• M1: 152,440 km (0.055 R)
• M2: 541,843 km (0.119 R)
• M3: 1,069,924 km (0.115 R)
• M4: 1,341,893 km (0.077 R)
• M5: 1,679,834 km (0.099 R)
• M6: 2,211,805 km (0.088 R)
• M7: 3,709,578 km (0.102 R)
• M8: 5,178,031 km (0.044 R)
• M9: 6,326,644 km (0.076 R)
• M10: 8,546,227 km (0.114 R)
• M11: 9,088,519 km (0.119 R)
• M12: 9,462,514 km (0.063 R)
• M13: 10,578,813 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 887.9

Radius: 10.4

Gravity: 8.21 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 3.99 AU - 5.71 AU

Year: 6896 Days

Day: 9 Hours

Environment

Temp: -225 °C

Axial Tilt: 65.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 72,264,413 km

• M1: 131,197 km (0.036 R)
• M2: 550,670 km (0.077 R)
• M3: 903,422 km (0.111 R)
• M4: 1,260,661 km (0.026 R)
• M5: 1,770,341 km (0.062 R)
• M6: 2,830,841 km (0.115 R)
• M7: 3,407,839 km (0.101 R)
• M8: 3,985,287 km (0.12 R)
• M9: 4,487,637 km (0.086 R)
• M10: 5,002,104 km (0.079 R)
• M11: 5,716,284 km (0.05 R)
• M12: 6,895,115 km (0.114 R)
• M13: 7,502,932 km (0.102 R)
• M14: 8,438,816 km (0.085 R)
• M15: 9,681,226 km (0.075 R)
• M16: 10,990,806 km (0.094 R)
• M17: 11,714,710 km (0.104 R)
• M18: 13,142,921 km (0.094 R)
• M19: 16,408,493 km (0.099 R)
• M20: 18,264,105 km (0.107 R)
• M21: 18,622,392 km (0.117 R)
• M22: 20,562,377 km (0.112 R)
• M23: 22,551,281 km (0.12 R)
• M24: 25,457,518 km (0.055 R)
• M25: 26,085,530 km (0.033 R)
• M26: 26,631,862 km (0.08 R)
• M27: 27,653,466 km (0.087 R)
• M28: 29,381,321 km (0.065 R)
• M29: 31,281,962 km (0.09 R)
• M30: 36,673,020 km (0.093 R)
• M31: 38,169,897 km (0.11 R)
• M32: 39,827,142 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 172.8

Radius: 4.9

Gravity: 7.2 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 7.22 AU - 10.28 AU

Year: 16712 Days

Day: 21.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 72,264,413 km

• M1: 132,693 km (0.051 R)
• M2: 348,413 km (0.112 R)
• M3: 3,664,250 km (0.079 R)
• M4: 4,654,289 km (0.08 R)
• M5: 5,102,484 km (0.099 R)
• M6: 7,824,567 km (0.062 R)
• M7: 10,211,551 km (0.087 R)
• M8: 22,113,707 km (0.114 R)
• M9: 26,402,079 km (0.106 R)
• M10: 27,056,570 km (0.066 R)
• M11: 32,368,192 km (0.073 R)
• M12: 34,098,591 km (0.095 R)
• M13: 34,540,652 km (0.073 R)
• M14: 34,874,555 km (0.101 R)
• M15: 35,775,882 km (0.058 R)
• M16: 37,978,561 km (0.093 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 752.1

Radius: 3.9

Gravity: 49.45 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 7.7 AU - 10.46 AU

Year: 17666 Days

Day: 23.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 72,264,413 km

• M1: 49,068 km (0.1 R)
• M2: 617,540 km (0.108 R)
• M3: 796,609 km (0.096 R)
• M4: 973,733 km (0.102 R)
• M5: 1,423,125 km (0.038 R)
• M6: 2,077,316 km (0.057 R)
• M7: 2,262,967 km (0.051 R)
• M8: 2,620,207 km (0.068 R)
• M9: 3,013,948 km (0.113 R)
• M10: 3,736,207 km (0.072 R)
• M11: 4,499,156 km (0.059 R)
• M12: 5,135,695 km (0.099 R)
• M13: 5,322,692 km (0.113 R)
• M14: 6,673,112 km (0.075 R)
• M15: 7,123,701 km (0.11 R)
• M16: 7,450,872 km (0.109 R)
• M17: 8,441,060 km (0.112 R)
• M18: 8,701,659 km (0.08 R)
• M19: 9,129,808 km (0.05 R)
• M20: 9,348,969 km (0.08 R)
• M21: 13,004,543 km (0.083 R)
• M22: 13,634,649 km (0.119 R)
• M23: 13,777,365 km (0.094 R)
• M24: 13,993,385 km (0.109 R)
• M25: 15,414,265 km (0.046 R)
• M26: 19,607,494 km (0.078 R)
• M27: 20,156,668 km (0.087 R)
• M28: 22,555,769 km (0.063 R)
• M29: 23,669,076 km (0.067 R)
• M30: 24,187,133 km (0.098 R)
• M31: 37,440,607 km (0.067 R)
• M32: 37,861,276 km (0.073 R)
• M33: 43,465,512 km (0.086 R)
• M34: 44,869,338 km (0.08 R)
• M35: 50,958,420 km (0.095 R)
• M36: 52,693,905 km (0.066 R)
• M37: 54,110,298 km (0.092 R)
• M38: 57,948,680 km (0.112 R)
• M39: 67,809,723 km (0.072 R)
• M40: 69,695,703 km (0.097 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 443 - 10,942 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit