🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 597.2

Radius: 12.8

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.48 AU - 0.56 AU

Year: 250 Days

Day: 12.7 Hours

Environment

Temp: -136 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,334,135 km

• M1: 159,172 km (0.036 R)
• M2: 654,491 km (0.046 R)
• M3: 1,063,192 km (0.042 R)
• M4: 1,526,497 km (0.084 R)
• M5: 1,948,662 km (0.099 R)
• M6: 2,401,644 km (0.12 R)
• M7: 2,852,233 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 700

Radius: 14.3

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.54 AU - 0.7 AU

Year: 326 Days

Day: 7.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 42,334,135 km

• M1: 177,872 km (0.119 R)
• M2: 657,931 km (0.085 R)
• M3: 1,147,266 km (0.118 R)
• M4: 1,598,453 km (0.025 R)
• M5: 2,139,698 km (0.098 R)
• M6: 2,708,619 km (0.102 R)
• M7: 3,174,616 km (0.062 R)
• M8: 3,636,724 km (0.083 R)
• M9: 4,106,013 km (0.098 R)
• M10: 4,561,837 km (0.026 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.4

Radius: 9

Gravity: 6.46 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.61 AU - 0.65 AU

Year: 333 Days

Day: 11.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 42,334,135 km

• M1: 113,096 km (0.12 R)
• M2: 432,936 km (0.057 R)
• M3: 767,437 km (0.111 R)
• M4: 1,102,237 km (0.086 R)
• M5: 1,676,693 km (0.117 R)
• M6: 2,086,591 km (0.095 R)
• M7: 3,027,711 km (0.085 R)
• M8: 3,708,082 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.1

Radius: 9.6

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.61 AU - 0.83 AU

Year: 407 Days

Day: 13.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,334,135 km

• M1: 119,379 km (0.077 R)
• M2: 428,897 km (0.049 R)
• M3: 798,254 km (0.098 R)
• M4: 1,502,860 km (0.098 R)
• M5: 2,046,948 km (0.078 R)
• M6: 2,569,343 km (0.064 R)
• M7: 2,881,255 km (0.084 R)
• M8: 3,454,364 km (0.107 R)
• M9: 3,892,686 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.5

Radius: 8

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.42 AU - 1.46 AU

Year: 1152 Days

Day: 12.9 Hours

Environment

Temp: -193 °C

Axial Tilt: 172.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 42,334,135 km

• M1: 99,483 km (0.108 R)
• M2: 361,578 km (0.1 R)
• M3: 648,806 km (0.071 R)
• M4: 939,175 km (0.055 R)
• M5: 1,520,812 km (0.11 R)
• M6: 1,778,419 km (0.12 R)
• M7: 2,120,999 km (0.09 R)
• M8: 3,292,649 km (0.105 R)
• M9: 3,756,253 km (0.098 R)
• M10: 4,651,895 km (0.075 R)
• M11: 6,900,950 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.5

Radius: 10.6

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 3.87 AU - 5.59 AU

Year: 6860 Days

Day: 6.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 42,334,135 km

• M1: 132,544 km (0.083 R)
• M2: 616,642 km (0.11 R)
• M3: 1,028,785 km (0.072 R)
• M4: 1,855,014 km (0.102 R)
• M5: 2,190,711 km (0.084 R)
• M6: 2,680,495 km (0.094 R)
• M7: 3,967,036 km (0.119 R)
• M8: 4,674,485 km (0.105 R)
• M9: 6,018,921 km (0.057 R)
• M10: 7,740,792 km (0.12 R)
• M11: 8,298,194 km (0.107 R)
• M12: 11,407,586 km (0.089 R)
• M13: 14,171,556 km (0.102 R)
• M14: 14,742,122 km (0.106 R)
• M15: 16,151,484 km (0.091 R)
• M16: 18,067,384 km (0.114 R)
• M17: 21,184,704 km (0.117 R)
• M18: 22,345,284 km (0.091 R)
• M19: 23,260,823 km (0.085 R)
• M20: 24,569,805 km (0.082 R)
• M21: 25,242,397 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599.5

Radius: 12.5

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 4.86 AU - 6.22 AU

Year: 8695 Days

Day: 5.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 42,334,135 km

• M1: 156,928 km (0.062 R)
• M2: 642,224 km (0.098 R)
• M3: 1,139,188 km (0.075 R)
• M4: 1,610,571 km (0.048 R)
• M5: 2,350,033 km (0.034 R)
• M6: 3,129,737 km (0.098 R)
• M7: 4,101,226 km (0.095 R)
• M8: 5,839,553 km (0.098 R)
• M9: 9,009,981 km (0.093 R)
• M10: 10,511,494 km (0.107 R)
• M11: 11,849,498 km (0.117 R)
• M12: 12,840,434 km (0.095 R)
• M13: 14,005,203 km (0.06 R)
• M14: 14,490,499 km (0.11 R)
• M15: 16,211,472 km (0.101 R)
• M16: 17,501,604 km (0.035 R)
• M17: 18,279,364 km (0.072 R)
• M18: 18,932,658 km (0.088 R)
• M19: 20,751,020 km (0.117 R)
• M20: 21,223,151 km (0.064 R)
• M21: 22,435,193 km (0.07 R)
• M22: 23,864,152 km (0.055 R)
• M23: 25,892,699 km (0.046 R)
• M24: 28,611,191 km (0.082 R)
• M25: 29,196,568 km (0.042 R)
• M26: 30,391,256 km (0.025 R)
• M27: 32,034,589 km (0.113 R)
• M28: 34,499,513 km (0.096 R)
• M29: 37,667,846 km (0.086 R)
• M30: 41,396,424 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 543.9

Radius: 4.8

Gravity: 23.61 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 4.56 AU - 7.04 AU

Year: 9315 Days

Day: 17.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 42,334,135 km

• M1: 59,690 km (0.12 R)
• M2: 340,634 km (0.057 R)
• M3: 574,007 km (0.032 R)
• M4: 891,753 km (0.092 R)
• M5: 1,919,191 km (0.119 R)
• M6: 3,236,700 km (0.116 R)
• M7: 4,448,741 km (0.114 R)
• M8: 5,063,738 km (0.057 R)
• M9: 5,733,638 km (0.119 R)
• M10: 5,969,553 km (0.052 R)
• M11: 6,424,929 km (0.117 R)
• M12: 7,603,761 km (0.034 R)
• M13: 7,971,323 km (0.083 R)
• M14: 8,786,182 km (0.116 R)
• M15: 13,766,894 km (0.047 R)
• M16: 15,838,525 km (0.119 R)
• M17: 26,389,663 km (0.118 R)
• M18: 29,065,370 km (0.045 R)
• M19: 31,602,401 km (0.117 R)
• M20: 37,695,671 km (0.031 R)
• M21: 39,604,989 km (0.12 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: 533 - 20,250 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit