🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.84

Radius: 1.28

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.41 AU - 0.67 AU

Year: 256 Days

Day: 47 Hours

Environment

Temp: -121 °C

Axial Tilt: 32.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.8

Radius: 11.3

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.79 AU - 1.11 AU

Year: 598 Days

Day: 11.6 Hours

Environment

Temp: -149 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,272,793 km

• M1: 140,472 km (0.099 R)
• M2: 527,632 km (0.076 R)
• M3: 1,042,697 km (0.091 R)
• M4: 1,571,974 km (0.093 R)
• M5: 2,133,864 km (0.117 R)
• M6: 2,826,502 km (0.052 R)
• M7: 3,575,090 km (0.105 R)
• M8: 4,044,079 km (0.107 R)
• M9: 4,748,386 km (0.102 R)
• M10: 5,515,673 km (0.093 R)
• M11: 5,911,809 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888.2

Radius: 12.4

Gravity: 5.78 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.85 AU - 1.21 AU

Year: 675 Days

Day: 9.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 54,272,793 km

• M1: 154,235 km (0.101 R)
• M2: 606,619 km (0.092 R)
• M3: 1,323,492 km (0.058 R)
• M4: 1,755,381 km (0.12 R)
• M5: 2,162,886 km (0.092 R)
• M6: 2,877,665 km (0.087 R)
• M7: 3,264,974 km (0.085 R)
• M8: 3,687,438 km (0.097 R)
• M9: 4,677,028 km (0.111 R)
• M10: 5,894,754 km (0.087 R)
• M11: 6,781,271 km (0.11 R)
• M12: 7,707,282 km (0.082 R)
• M13: 8,188,838 km (0.046 R)
• M14: 8,639,277 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.1

Radius: 15

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.4 AU - 2.14 AU

Year: 1520 Days

Day: 12.6 Hours

Environment

Temp: -176 °C

Axial Tilt: 169.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 54,272,793 km

• M1: 186,549 km (0.093 R)
• M2: 976,724 km (0.076 R)
• M3: 1,711,998 km (0.104 R)
• M4: 3,181,348 km (0.09 R)
• M5: 3,802,329 km (0.09 R)
• M6: 5,343,636 km (0.109 R)
• M7: 6,426,425 km (0.108 R)
• M8: 7,742,587 km (0.026 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 113.9

Radius: 13.9

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.83 AU - 1.93 AU

Year: 1664 Days

Day: 8.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 54,272,793 km

• M1: 172,935 km (0.054 R)
• M2: 683,513 km (0.117 R)
• M3: 1,289,085 km (0.091 R)
• M4: 1,943,875 km (0.109 R)
• M5: 3,024,869 km (0.06 R)
• M6: 3,721,097 km (0.104 R)
• M7: 7,928,538 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 602.8

Radius: 10.7

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 2.09 AU - 2.25 AU

Year: 2064 Days

Day: 8.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 54,272,793 km

• M1: 134,189 km (0.071 R)
• M2: 1,631,664 km (0.048 R)
• M3: 1,981,873 km (0.093 R)
• M4: 2,318,767 km (0.069 R)
• M5: 3,017,688 km (0.082 R)
• M6: 4,149,097 km (0.093 R)
• M7: 4,481,952 km (0.059 R)
• M8: 5,636,848 km (0.115 R)
• M9: 6,817,923 km (0.077 R)
• M10: 7,624,854 km (0.108 R)
• M11: 9,098,842 km (0.103 R)
• M12: 10,146,625 km (0.117 R)
• M13: 10,537,225 km (0.046 R)
• M14: 11,273,097 km (0.111 R)
• M15: 12,042,928 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.8

Radius: 11.7

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 2.75 AU - 2.81 AU

Year: 2993 Days

Day: 10 Hours

Environment

Temp: -210 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 54,272,793 km

• M1: 145,559 km (0.117 R)
• M2: 814,411 km (0.097 R)
• M3: 1,282,353 km (0.083 R)
• M4: 1,695,243 km (0.09 R)
• M5: 2,466,121 km (0.071 R)
• M6: 3,361,913 km (0.093 R)
• M7: 4,090,006 km (0.069 R)
• M8: 4,697,822 km (0.112 R)
• M9: 5,721,819 km (0.085 R)
• M10: 6,734,747 km (0.068 R)
• M11: 9,399,234 km (0.05 R)
• M12: 10,019,467 km (0.073 R)
• M13: 11,269,806 km (0.102 R)
• M14: 12,235,460 km (0.116 R)
• M15: 13,662,624 km (0.092 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.5

Radius: 9.7

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 3.34 AU - 3.94 AU

Year: 4484 Days

Day: 13.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 54,272,793 km

• M1: 121,025 km (0.104 R)
• M2: 925,412 km (0.089 R)
• M3: 3,215,905 km (0.107 R)
• M4: 3,708,232 km (0.117 R)
• M5: 6,989,213 km (0.055 R)
• M6: 8,582,280 km (0.118 R)
• M7: 10,621,598 km (0.089 R)
• M8: 11,215,801 km (0.108 R)
• M9: 13,174,336 km (0.078 R)
• M10: 15,585,555 km (0.119 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.4

Radius: 12.3

Gravity: 5.05 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 4.18 AU - 4.5 AU

Year: 5838 Days

Day: 5.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 54,272,793 km

• M1: 153,039 km (0.077 R)
• M2: 630,705 km (0.058 R)
• M3: 1,040,154 km (0.08 R)
• M4: 1,847,384 km (0.065 R)
• M5: 2,315,326 km (0.117 R)
• M6: 2,862,555 km (0.062 R)
• M7: 3,560,878 km (0.12 R)
• M8: 4,395,634 km (0.112 R)
• M9: 5,125,373 km (0.054 R)
• M10: 6,620,753 km (0.038 R)
• M11: 7,178,903 km (0.076 R)
• M12: 8,074,695 km (0.047 R)
• M13: 8,835,699 km (0.047 R)
• M14: 9,556,611 km (0.118 R)
• M15: 11,855,182 km (0.117 R)
• M16: 12,314,298 km (0.082 R)
• M17: 13,106,120 km (0.106 R)
• M18: 17,192,236 km (0.092 R)
• M19: 19,700,244 km (0.098 R)
• M20: 24,516,398 km (0.116 R)
• M21: 25,431,040 km (0.084 R)
• M22: 26,454,588 km (0.08 R)
• M23: 32,680,253 km (0.119 R)
• M24: 33,787,876 km (0.071 R)
• M25: 34,196,727 km (0.079 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 362.2

Radius: 6.3

Gravity: 9.13 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 6.77 AU - 10.63 AU

Year: 16569 Days

Day: 17.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 54,272,793 km

• M1: 83,027 km (0.056 R)
• M2: 358,885 km (0.061 R)
• M3: 846,425 km (0.11 R)
• M4: 1,585,887 km (0.043 R)
• M5: 2,323,105 km (0.117 R)
• M6: 2,757,238 km (0.079 R)
• M7: 3,813,549 km (0.09 R)
• M8: 5,849,875 km (0.064 R)
• M9: 17,804,391 km (0.098 R)
• M10: 23,309,443 km (0.043 R)
• M11: 27,721,981 km (0.096 R)
• M12: 32,085,003 km (0.097 R)
• M13: 45,235,255 km (0.102 R)
• M14: 46,690,243 km (0.094 R)
• M15: 52,186,619 km (0.081 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 503 - 14,182 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit