🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.6 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89.3

Radius: 8.7

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.11 AU - 1.29 AU

Year: 877 Days

Day: 7.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 47,974,803 km

• M1: 108,159 km (0.113 R)
• M2: 388,356 km (0.076 R)
• M3: 719,117 km (0.061 R)
• M4: 1,041,949 km (0.038 R)
• M5: 1,480,570 km (0.118 R)
• M6: 1,836,164 km (0.072 R)
• M7: 3,390,785 km (0.078 R)
• M8: 3,818,486 km (0.108 R)
• M9: 4,217,014 km (0.119 R)
• M10: 4,574,703 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 756.1

Radius: 9

Gravity: 9.33 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.67 AU - 1.91 AU

Year: 1597 Days

Day: 9.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 47,974,803 km

• M1: 112,348 km (0.056 R)
• M2: 468,541 km (0.061 R)
• M3: 792,719 km (0.062 R)
• M4: 1,176,288 km (0.059 R)
• M5: 1,529,489 km (0.046 R)
• M6: 1,866,832 km (0.104 R)
• M7: 2,428,572 km (0.111 R)
• M8: 2,735,547 km (0.115 R)
• M9: 3,284,421 km (0.109 R)
• M10: 3,764,630 km (0.098 R)
• M11: 5,557,860 km (0.115 R)
• M12: 5,975,388 km (0.069 R)
• M13: 6,339,210 km (0.08 R)
• M14: 7,548,110 km (0.1 R)
• M15: 8,177,917 km (0.061 R)
• M16: 8,811,165 km (0.052 R)
• M17: 9,155,838 km (0.115 R)
• M18: 9,607,325 km (0.119 R)
• M19: 10,837,019 km (0.067 R)
• M20: 12,130,143 km (0.1 R)
• M21: 12,596,290 km (0.115 R)
• M22: 14,581,454 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444.4

Radius: 12.2

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 1.76 AU - 2.44 AU

Year: 2029 Days

Day: 9.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 47,974,803 km

• M1: 152,291 km (0.099 R)
• M2: 713,881 km (0.103 R)
• M3: 1,367,773 km (0.095 R)
• M4: 2,641,599 km (0.092 R)
• M5: 3,385,699 km (0.037 R)
• M6: 3,781,984 km (0.065 R)
• M7: 4,302,435 km (0.108 R)
• M8: 7,088,994 km (0.1 R)
• M9: 11,445,733 km (0.095 R)
• M10: 12,192,675 km (0.09 R)
• M11: 13,091,459 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239.7

Radius: 9.7

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 2.32 AU - 3.52 AU

Year: 3327 Days

Day: 13.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 47,974,803 km

• M1: 120,576 km (0.068 R)
• M2: 521,498 km (0.113 R)
• M3: 840,890 km (0.11 R)
• M4: 1,627,026 km (0.118 R)
• M5: 2,281,368 km (0.097 R)
• M6: 2,741,082 km (0.09 R)
• M7: 3,310,601 km (0.119 R)
• M8: 3,721,097 km (0.092 R)
• M9: 4,897,685 km (0.115 R)
• M10: 6,129,324 km (0.117 R)
• M11: 7,243,379 km (0.092 R)
• M12: 7,967,732 km (0.088 R)
• M13: 8,301,485 km (0.086 R)
• M14: 9,425,713 km (0.11 R)
• M15: 9,730,593 km (0.082 R)
• M16: 10,182,678 km (0.05 R)
• M17: 10,648,676 km (0.073 R)
• M18: 11,317,229 km (0.026 R)
• M19: 13,069,618 km (0.093 R)
• M20: 13,749,540 km (0.114 R)
• M21: 15,646,591 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 894.6

Radius: 14.6

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 2.59 AU - 3.77 AU

Year: 3782 Days

Day: 13.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 47,974,803 km

• M1: 181,761 km (0.097 R)
• M2: 1,008,140 km (0.091 R)
• M3: 1,549,086 km (0.116 R)
• M4: 2,515,787 km (0.071 R)
• M5: 3,210,370 km (0.091 R)
• M6: 6,001,867 km (0.109 R)
• M7: 7,655,970 km (0.093 R)
• M8: 9,597,152 km (0.119 R)
• M9: 10,425,176 km (0.114 R)
• M10: 14,221,372 km (0.058 R)
• M11: 18,289,985 km (0.03 R)
• M12: 20,556,543 km (0.111 R)
• M13: 21,792,371 km (0.105 R)
• M14: 22,357,402 km (0.103 R)
• M15: 23,223,125 km (0.112 R)
• M16: 24,186,236 km (0.059 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.3

Radius: 9

Gravity: 5.78 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 4.03 AU - 4.31 AU

Year: 5679 Days

Day: 5.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 47,974,803 km

• M1: 112,049 km (0.114 R)
• M2: 467,493 km (0.116 R)
• M3: 882,927 km (0.069 R)
• M4: 1,265,748 km (0.079 R)
• M5: 2,042,310 km (0.111 R)
• M6: 2,326,097 km (0.056 R)
• M7: 2,619,608 km (0.115 R)
• M8: 3,402,604 km (0.111 R)
• M9: 3,983,343 km (0.086 R)
• M10: 4,729,836 km (0.089 R)
• M11: 6,157,149 km (0.119 R)
• M12: 6,467,565 km (0.076 R)
• M13: 6,755,989 km (0.08 R)
• M14: 8,254,511 km (0.118 R)
• M15: 11,895,125 km (0.114 R)
• M16: 15,384,047 km (0.096 R)
• M17: 16,964,698 km (0.105 R)
• M18: 20,445,840 km (0.073 R)
• M19: 22,866,483 km (0.034 R)
• M20: 23,688,823 km (0.094 R)
• M21: 24,145,695 km (0.077 R)
• M22: 27,509,552 km (0.12 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 92.8

Radius: 5

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 4.66 AU - 7.76 AU

Year: 10320 Days

Day: 23.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 47,974,803 km

• M1: 62,682 km (0.091 R)
• M2: 566,826 km (0.08 R)
• M3: 2,140,746 km (0.106 R)
• M4: 2,551,242 km (0.087 R)
• M5: 3,428,035 km (0.108 R)
• M6: 3,989,177 km (0.068 R)
• M7: 8,812,212 km (0.101 R)
• M8: 9,777,866 km (0.088 R)
• M9: 10,812,037 km (0.115 R)
• M10: 12,286,174 km (0.104 R)
• M11: 14,714,596 km (0.046 R)
• M12: 16,012,956 km (0.087 R)
• M13: 19,781,626 km (0.076 R)
• M14: 20,298,785 km (0.108 R)
• M15: 20,758,649 km (0.096 R)
• M16: 20,957,914 km (0.055 R)
• M17: 22,042,049 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 137.3

Radius: 5.2

Gravity: 5.08 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 9.78 AU - 11.02 AU

Year: 22366 Days

Day: 18.8 Hours

Environment

Temp: -243 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 47,974,803 km

• M1: 84,822 km (0.082 R)
• M2: 353,500 km (0.05 R)
• M3: 727,046 km (0.119 R)
• M4: 1,294,620 km (0.087 R)
• M5: 2,570,989 km (0.103 R)
• M6: 2,950,668 km (0.048 R)
• M7: 4,145,806 km (0.067 R)
• M8: 4,343,724 km (0.09 R)
• M9: 6,646,933 km (0.052 R)
• M10: 7,278,385 km (0.097 R)
• M11: 8,299,391 km (0.089 R)
• M12: 10,055,221 km (0.077 R)
• M13: 24,228,572 km (0.071 R)
• M14: 24,411,081 km (0.116 R)
• M15: 25,337,990 km (0.114 R)
• M16: 28,258,888 km (0.071 R)
• M17: 37,615,487 km (0.087 R)
• M18: 45,157,314 km (0.117 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 341 - 16,750 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit