🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202.5

Radius: 13.6

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.63 AU - 0.69 AU

Year: 377 Days

Day: 7.3 Hours

Environment

Temp: -154 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 39,475,319 km

• M1: 169,195 km (0.105 R)
• M2: 741,257 km (0.107 R)
• M3: 1,273,377 km (0.106 R)
• M4: 1,920,388 km (0.119 R)
• M5: 2,444,728 km (0.091 R)
• M6: 2,955,904 km (0.104 R)
• M7: 3,427,886 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.8

Radius: 8.6

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.75 AU - 0.81 AU

Year: 484 Days

Day: 10.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 39,475,319 km

• M1: 107,561 km (0.028 R)
• M2: 413,040 km (0.083 R)
• M3: 707,299 km (0.061 R)
• M4: 1,087,128 km (0.08 R)
• M5: 1,517,371 km (0.107 R)
• M6: 2,145,084 km (0.12 R)
• M7: 2,509,953 km (0.12 R)
• M8: 3,109,093 km (0.102 R)
• M9: 3,612,789 km (0.12 R)
• M10: 4,672,241 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 33.2

Radius: 8.4

Gravity: 0.47 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.21 AU - 1.47 AU

Year: 1090 Days

Day: 11.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 39,475,319 km

• M1: 105,466 km (0.041 R)
• M2: 370,255 km (0.112 R)
• M3: 1,272,629 km (0.087 R)
• M4: 1,736,532 km (0.032 R)
• M5: 2,078,363 km (0.03 R)
• M6: 2,382,047 km (0.075 R)
• M7: 2,697,698 km (0.074 R)
• M8: 3,850,500 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 483.6

Radius: 9.8

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.35 AU - 1.57 AU

Year: 1240 Days

Day: 5.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 39,475,319 km

• M1: 122,820 km (0.063 R)
• M2: 431,440 km (0.118 R)
• M3: 753,824 km (0.118 R)
• M4: 1,417,589 km (0.098 R)
• M5: 1,905,727 km (0.043 R)
• M6: 2,399,400 km (0.074 R)
• M7: 2,859,264 km (0.065 R)
• M8: 3,553,548 km (0.093 R)
• M9: 3,908,693 km (0.076 R)
• M10: 4,338,937 km (0.108 R)
• M11: 5,493,533 km (0.096 R)
• M12: 7,668,686 km (0.097 R)
• M13: 8,054,050 km (0.086 R)
• M14: 8,752,822 km (0.069 R)
• M15: 9,638,142 km (0.083 R)
• M16: 9,966,210 km (0.099 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 455.9

Radius: 3.2

Gravity: 44.52 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 5.43 AU - 5.95 AU

Year: 9541 Days

Day: 16 Hours

Environment

Temp: -220 °C

Axial Tilt: 134.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 39,475,319 km

• M1: 39,793 km (0.108 R)
• M2: 477,217 km (0.119 R)
• M3: 672,891 km (0.108 R)
• M4: 891,603 km (0.088 R)
• M5: 1,380,040 km (0.06 R)
• M6: 1,549,535 km (0.056 R)
• M7: 2,075,521 km (0.057 R)
• M8: 2,316,224 km (0.045 R)
• M9: 2,711,611 km (0.113 R)
• M10: 2,811,991 km (0.116 R)
• M11: 2,998,989 km (0.117 R)
• M12: 3,261,234 km (0.12 R)
• M13: 3,514,952 km (0.084 R)
• M14: 3,756,702 km (0.029 R)
• M15: 5,836,112 km (0.1 R)
• M16: 6,037,920 km (0.117 R)
• M17: 9,327,427 km (0.06 R)
• M18: 9,696,485 km (0.094 R)
• M19: 10,268,099 km (0.102 R)
• M20: 14,912,514 km (0.07 R)
• M21: 17,756,220 km (0.113 R)
• M22: 18,973,498 km (0.116 R)
• M23: 20,629,995 km (0.03 R)
• M24: 22,626,379 km (0.096 R)
• M25: 22,957,289 km (0.045 R)
• M26: 25,099,232 km (0.116 R)
• M27: 28,796,992 km (0.11 R)
• M28: 29,676,178 km (0.111 R)
• M29: 30,977,680 km (0.11 R)
• M30: 38,292,118 km (0.096 R)
• M31: 39,235,632 km (0.062 R)
• M32: 40,315,429 km (0.081 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 399.3

Radius: 4.8

Gravity: 17.33 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 5 AU - 6.68 AU

Year: 9920 Days

Day: 18.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 39,475,319 km

• M1: 63,130 km (0.09 R)
• M2: 213,626 km (0.111 R)
• M3: 477,367 km (0.115 R)
• M4: 1,608,925 km (0.056 R)
• M5: 1,838,857 km (0.115 R)
• M6: 3,493,709 km (0.028 R)
• M7: 4,681,366 km (0.033 R)
• M8: 5,273,175 km (0.071 R)
• M9: 6,218,035 km (0.082 R)
• M10: 6,497,335 km (0.102 R)
• M11: 8,227,284 km (0.105 R)
• M12: 9,041,995 km (0.089 R)
• M13: 9,491,835 km (0.11 R)
• M14: 13,641,830 km (0.075 R)
• M15: 13,994,582 km (0.047 R)
• M16: 15,340,214 km (0.115 R)
• M17: 17,039,048 km (0.067 R)
• M18: 17,379,533 km (0.092 R)
• M19: 19,741,533 km (0.113 R)
• M20: 24,053,991 km (0.1 R)
• M21: 24,655,225 km (0.116 R)
• M22: 24,828,759 km (0.036 R)
• M23: 32,150,826 km (0.099 R)
• M24: 38,646,815 km (0.072 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 295.4

Radius: 5.1

Gravity: 11.36 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 6.25 AU - 6.55 AU

Year: 11381 Days

Day: 22.1 Hours

Environment

Temp: -238 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 39,475,319 km

• M1: 64,776 km (0.048 R)
• M2: 321,187 km (0.117 R)
• M3: 494,571 km (0.111 R)
• M4: 1,318,855 km (0.106 R)
• M5: 1,492,688 km (0.088 R)
• M6: 2,027,500 km (0.035 R)
• M7: 3,420,705 km (0.06 R)
• M8: 4,207,739 km (0.071 R)
• M9: 6,098,656 km (0.055 R)
• M10: 7,134,173 km (0.09 R)
• M11: 7,400,756 km (0.107 R)
• M12: 8,034,902 km (0.059 R)
• M13: 8,407,251 km (0.098 R)
• M14: 8,661,866 km (0.057 R)
• M15: 8,834,353 km (0.082 R)
• M16: 13,123,473 km (0.1 R)
• M17: 13,466,202 km (0.119 R)
• M18: 14,409,117 km (0.048 R)
• M19: 16,163,900 km (0.117 R)
• M20: 16,623,914 km (0.112 R)
• M21: 17,092,604 km (0.102 R)
• M22: 19,494,996 km (0.06 R)
• M23: 31,155,103 km (0.049 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 517 - 14,935 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit