🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.87

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.5 AU - 0.74 AU

Year: 320 Days

Day: 42 Hours

Environment

Temp: -133 °C

Axial Tilt: 10.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 34,187,060 km

• M1: 30,069 km (0.071 R)
• M2: 581,786 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728.8

Radius: 12.2

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.57 AU - 0.89 AU

Year: 409 Days

Day: 9.9 Hours

Environment

Temp: -140 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 34,187,060 km

• M1: 151,692 km (0.047 R)
• M2: 821,592 km (0.109 R)
• M3: 1,233,135 km (0.073 R)
• M4: 1,720,076 km (0.115 R)
• M5: 2,255,038 km (0.118 R)
• M6: 2,685,132 km (0.093 R)
• M7: 3,283,075 km (0.071 R)
• M8: 3,788,716 km (0.11 R)
• M9: 4,222,101 km (0.111 R)
• M10: 4,674,036 km (0.104 R)
• M11: 5,220,966 km (0.1 R)
• M12: 5,725,859 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740

Radius: 9

Gravity: 9.14 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.94 AU - 1.08 AU

Year: 666 Days

Day: 5.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 34,187,060 km

• M1: 111,899 km (0.116 R)
• M2: 408,851 km (0.03 R)
• M3: 772,374 km (0.047 R)
• M4: 1,168,958 km (0.093 R)
• M5: 1,893,909 km (0.074 R)
• M6: 2,595,224 km (0.087 R)
• M7: 3,061,221 km (0.1 R)
• M8: 4,055,449 km (0.094 R)
• M9: 4,457,119 km (0.097 R)
• M10: 4,817,799 km (0.084 R)
• M11: 5,144,820 km (0.099 R)
• M12: 5,998,426 km (0.056 R)
• M13: 6,541,765 km (0.083 R)
• M14: 7,073,735 km (0.089 R)
• M15: 7,497,097 km (0.034 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.7

Radius: 9.5

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.73 AU - 2.01 AU

Year: 1678 Days

Day: 5.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 34,187,060 km

• M1: 118,781 km (0.12 R)
• M2: 430,692 km (0.104 R)
• M3: 910,752 km (0.094 R)
• M4: 1,380,788 km (0.102 R)
• M5: 1,710,203 km (0.097 R)
• M6: 2,060,262 km (0.09 R)
• M7: 2,618,860 km (0.084 R)
• M8: 3,144,398 km (0.094 R)
• M9: 3,787,668 km (0.072 R)
• M10: 4,298,994 km (0.104 R)
• M11: 5,397,192 km (0.084 R)
• M12: 6,250,049 km (0.069 R)
• M13: 7,189,973 km (0.11 R)
• M14: 7,575,636 km (0.116 R)
• M15: 7,894,130 km (0.081 R)
• M16: 9,409,108 km (0.109 R)
• M17: 9,965,163 km (0.089 R)
• M18: 11,348,046 km (0.026 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.3

Radius: 8

Gravity: 9.93 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 2.39 AU - 2.87 AU

Year: 2798 Days

Day: 5.1 Hours

Environment

Temp: -207 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 34,187,060 km

• M1: 99,632 km (0.068 R)
• M2: 406,607 km (0.089 R)
• M3: 680,820 km (0.061 R)
• M4: 974,780 km (0.114 R)
• M5: 1,261,708 km (0.073 R)
• M6: 1,626,877 km (0.063 R)
• M7: 2,913,419 km (0.083 R)
• M8: 3,391,833 km (0.097 R)
• M9: 3,764,930 km (0.049 R)
• M10: 4,165,254 km (0.092 R)
• M11: 5,716,434 km (0.111 R)
• M12: 6,137,552 km (0.106 R)
• M13: 6,438,992 km (0.119 R)
• M14: 6,692,859 km (0.106 R)
• M15: 7,131,031 km (0.101 R)
• M16: 7,903,704 km (0.073 R)
• M17: 8,833,904 km (0.065 R)
• M18: 9,505,449 km (0.105 R)
• M19: 10,134,807 km (0.111 R)
• M20: 10,634,613 km (0.093 R)
• M21: 12,189,982 km (0.072 R)
• M22: 13,383,474 km (0.106 R)
• M23: 13,938,183 km (0.094 R)
• M24: 14,316,367 km (0.097 R)
• M25: 17,758,314 km (0.084 R)
• M26: 19,405,686 km (0.066 R)
• M27: 19,937,058 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 716.2

Radius: 10.2

Gravity: 6.88 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 2.9 AU - 3.78 AU

Year: 4004 Days

Day: 5.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 34,187,060 km

• M1: 129,103 km (0.078 R)
• M2: 528,080 km (0.079 R)
• M3: 964,757 km (0.079 R)
• M4: 1,364,333 km (0.073 R)
• M5: 1,913,357 km (0.115 R)
• M6: 2,337,018 km (0.111 R)
• M7: 2,771,450 km (0.101 R)
• M8: 3,164,893 km (0.076 R)
• M9: 3,514,353 km (0.069 R)
• M10: 4,361,376 km (0.114 R)
• M11: 5,285,592 km (0.045 R)
• M12: 5,611,865 km (0.11 R)
• M13: 6,830,040 km (0.101 R)
• M14: 9,541,053 km (0.067 R)
• M15: 9,862,988 km (0.118 R)
• M16: 10,443,577 km (0.071 R)
• M17: 13,144,716 km (0.075 R)
• M18: 13,899,437 km (0.065 R)
• M19: 14,366,033 km (0.111 R)
• M20: 16,567,216 km (0.098 R)
• M21: 17,032,914 km (0.047 R)
• M22: 18,795,177 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.8

Radius: 10

Gravity: 7.43 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 3.72 AU - 4.04 AU

Year: 5014 Days

Day: 7.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 34,187,060 km

• M1: 127,308 km (0.1 R)
• M2: 674,686 km (0.072 R)
• M3: 1,309,131 km (0.088 R)
• M4: 2,289,147 km (0.077 R)
• M5: 2,815,432 km (0.047 R)
• M6: 3,358,771 km (0.067 R)
• M7: 4,134,586 km (0.072 R)
• M8: 5,359,194 km (0.083 R)
• M9: 9,900,387 km (0.11 R)
• M10: 10,515,833 km (0.116 R)
• M11: 11,156,560 km (0.088 R)
• M12: 11,726,229 km (0.094 R)
• M13: 13,027,282 km (0.11 R)
• M14: 16,032,553 km (0.081 R)
• M15: 16,819,737 km (0.103 R)
• M16: 20,228,175 km (0.076 R)
• M17: 26,832,024 km (0.107 R)
• M18: 28,375,724 km (0.052 R)
• M19: 29,169,341 km (0.088 R)
• M20: 29,706,696 km (0.107 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.2

Radius: 10.7

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 4.47 AU - 5.03 AU

Year: 6791 Days

Day: 12.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 34,187,060 km

• M1: 133,292 km (0.109 R)
• M2: 472,580 km (0.087 R)
• M3: 1,038,808 km (0.059 R)
• M4: 1,425,967 km (0.087 R)
• M5: 2,128,778 km (0.105 R)
• M6: 2,645,040 km (0.096 R)
• M7: 4,307,970 km (0.041 R)
• M8: 4,850,262 km (0.065 R)
• M9: 5,201,219 km (0.069 R)
• M10: 6,504,665 km (0.049 R)
• M11: 7,166,785 km (0.07 R)
• M12: 8,418,471 km (0.095 R)
• M13: 9,875,703 km (0.108 R)
• M14: 13,243,451 km (0.117 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 422.8

Radius: 12.9

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 4.41 AU - 5.89 AU

Year: 7667 Days

Day: 9.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 34,187,060 km

• M1: 168,597 km (0.1 R)
• M2: 737,966 km (0.117 R)
• M3: 1,145,022 km (0.101 R)
• M4: 4,090,604 km (0.11 R)
• M5: 6,903,044 km (0.102 R)
• M6: 8,587,965 km (0.096 R)
• M7: 10,486,362 km (0.107 R)
• M8: 12,134,182 km (0.108 R)
• M9: 14,400,889 km (0.115 R)
• M10: 20,836,590 km (0.109 R)
• M11: 22,336,009 km (0.035 R)
• M12: 23,826,154 km (0.031 R)
• M13: 24,229,170 km (0.113 R)
• M14: 29,797,053 km (0.103 R)
• M15: 33,780,396 km (0.043 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 492 - 19,886 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit