🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.2

Radius: 15

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.7 AU - 0.76 AU

Year: 403 Days

Day: 5.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 32,331,180 km

• M1: 188,045 km (0.098 R)
• M2: 658,829 km (0.097 R)
• M3: 1,215,034 km (0.093 R)
• M4: 1,748,650 km (0.084 R)
• M5: 2,255,188 km (0.073 R)
• M6: 3,054,789 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.7

Radius: 8

Gravity: 10.21 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.73 AU - 0.79 AU

Year: 428 Days

Day: 5.1 Hours

Environment

Temp: -135 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 32,331,180 km

• M1: 99,483 km (0.098 R)
• M2: 413,189 km (0.107 R)
• M3: 883,375 km (0.111 R)
• M4: 1,144,573 km (0.083 R)
• M5: 1,538,315 km (0.049 R)
• M6: 2,279,273 km (0.113 R)
• M7: 2,639,206 km (0.05 R)
• M8: 2,907,135 km (0.102 R)
• M9: 3,343,213 km (0.064 R)
• M10: 4,781,298 km (0.109 R)
• M11: 5,260,908 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.9

Radius: 8.7

Gravity: 10.36 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.65 AU - 0.89 AU

Year: 436 Days

Day: 14.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,331,180 km

• M1: 108,159 km (0.067 R)
• M2: 484,398 km (0.116 R)
• M3: 956,828 km (0.075 R)
• M4: 1,262,756 km (0.072 R)
• M5: 1,895,555 km (0.04 R)
• M6: 2,238,433 km (0.049 R)
• M7: 2,652,969 km (0.069 R)
• M8: 3,016,491 km (0.097 R)
• M9: 3,688,036 km (0.109 R)
• M10: 4,240,352 km (0.105 R)
• M11: 4,648,455 km (0.094 R)
• M12: 5,942,626 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901

Radius: 15

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.75 AU - 0.97 AU

Year: 515 Days

Day: 6.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 32,331,180 km

• M1: 186,549 km (0.05 R)
• M2: 745,745 km (0.063 R)
• M3: 1,364,931 km (0.07 R)
• M4: 1,899,145 km (0.098 R)
• M5: 2,513,244 km (0.076 R)
• M6: 3,407,391 km (0.077 R)
• M7: 3,950,581 km (0.104 R)
• M8: 4,597,891 km (0.116 R)
• M9: 5,332,566 km (0.065 R)
• M10: 6,433,307 km (0.084 R)
• M11: 7,100,513 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198.3

Radius: 11

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.94 AU - 0.98 AU

Year: 607 Days

Day: 9.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 32,331,180 km

• M1: 153,487 km (0.05 R)
• M2: 512,822 km (0.06 R)
• M3: 907,760 km (0.086 R)
• M4: 1,255,425 km (0.073 R)
• M5: 1,756,279 km (0.057 R)
• M6: 2,869,736 km (0.047 R)
• M7: 4,029,568 km (0.114 R)
• M8: 4,496,762 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.6

Radius: 10

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.07 AU - 1.73 AU

Year: 1070 Days

Day: 13.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 32,331,180 km

• M1: 124,615 km (0.097 R)
• M2: 446,699 km (0.071 R)
• M3: 826,528 km (0.061 R)
• M4: 1,215,333 km (0.095 R)
• M5: 1,718,281 km (0.11 R)
• M6: 2,257,432 km (0.074 R)
• M7: 2,691,864 km (0.067 R)
• M8: 3,071,843 km (0.116 R)
• M9: 3,799,188 km (0.11 R)
• M10: 4,386,210 km (0.095 R)
• M11: 5,414,396 km (0.095 R)
• M12: 6,295,378 km (0.102 R)
• M13: 6,884,943 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 575.7

Radius: 12.8

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.11 AU - 1.81 AU

Year: 1139 Days

Day: 7.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 32,331,180 km

• M1: 159,172 km (0.12 R)
• M2: 619,784 km (0.114 R)
• M3: 1,218,624 km (0.057 R)
• M4: 1,656,946 km (0.092 R)
• M5: 2,108,432 km (0.066 R)
• M6: 2,570,839 km (0.113 R)
• M7: 3,480,394 km (0.095 R)
• M8: 4,248,879 km (0.036 R)
• M9: 4,700,963 km (0.086 R)
• M10: 6,543,710 km (0.087 R)
• M11: 8,553,707 km (0.073 R)
• M12: 9,567,831 km (0.042 R)
• M13: 10,104,139 km (0.078 R)
• M14: 10,629,078 km (0.065 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266

Radius: 11.5

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.18 AU - 1.92 AU

Year: 1246 Days

Day: 7.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,331,180 km

• M1: 143,165 km (0.062 R)
• M2: 588,368 km (0.084 R)
• M3: 1,000,211 km (0.084 R)
• M4: 1,406,070 km (0.111 R)
• M5: 1,914,254 km (0.04 R)
• M6: 2,413,612 km (0.105 R)
• M7: 2,925,237 km (0.092 R)
• M8: 5,525,098 km (0.106 R)
• M9: 7,974,464 km (0.06 R)
• M10: 8,368,355 km (0.045 R)

Planet 9 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 405.5

Radius: 9.5

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.88 AU - 2 AU

Year: 1745 Days

Day: 14.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 32,331,180 km

• M1: 118,182 km (0.106 R)
• M2: 450,888 km (0.119 R)
• M3: 862,282 km (0.114 R)
• M4: 1,171,351 km (0.112 R)
• M5: 1,674,150 km (0.114 R)
• M6: 2,133,266 km (0.096 R)
• M7: 2,460,137 km (0.088 R)
• M8: 3,745,931 km (0.112 R)
• M9: 4,066,968 km (0.071 R)
• M10: 4,764,393 km (0.102 R)
• M11: 6,002,764 km (0.055 R)
• M12: 7,159,006 km (0.058 R)
• M13: 7,549,157 km (0.052 R)
• M14: 8,982,903 km (0.053 R)
• M15: 10,034,427 km (0.093 R)
• M16: 10,892,371 km (0.112 R)
• M17: 11,762,731 km (0.074 R)
• M18: 12,306,818 km (0.096 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 150.2

Radius: 7.6

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 5.73 AU - 8.17 AU

Year: 11830 Days

Day: 18.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 32,331,180 km

• M1: 128,654 km (0.109 R)
• M2: 401,670 km (0.101 R)
• M3: 661,073 km (0.116 R)
• M4: 939,026 km (0.065 R)
• M5: 1,180,776 km (0.113 R)
• M6: 1,476,681 km (0.109 R)
• M7: 1,727,407 km (0.087 R)
• M8: 3,232,361 km (0.12 R)
• M9: 3,571,200 km (0.085 R)
• M10: 3,980,799 km (0.109 R)
• M11: 7,304,266 km (0.095 R)
• M12: 7,556,488 km (0.091 R)
• M13: 8,744,744 km (0.111 R)
• M14: 10,638,503 km (0.093 R)
• M15: 12,126,852 km (0.066 R)
• M16: 12,635,186 km (0.096 R)
• M17: 13,210,689 km (0.091 R)
• M18: 13,968,103 km (0.112 R)
• M19: 16,599,679 km (0.089 R)
• M20: 27,299,367 km (0.12 R)
• M21: 27,646,285 km (0.045 R)
• M22: 27,996,045 km (0.066 R)
• M23: 32,331,241 km (0.084 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 272 - 12,772 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit