🌌 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: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482.2

Radius: 10.2

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.5 AU - 0.8 AU

Year: 349 Days

Day: 9.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 84,744,328 km

• M1: 126,859 km (0.035 R)
• M2: 533,316 km (0.096 R)
• M3: 868,116 km (0.103 R)
• M4: 1,203,365 km (0.106 R)
• M5: 1,753,287 km (0.091 R)
• M6: 2,110,527 km (0.089 R)
• M7: 2,847,895 km (0.082 R)
• M8: 3,166,987 km (0.116 R)
• M9: 3,702,398 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 512.6

Radius: 14.5

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.9 AU - 1.04 AU

Year: 637 Days

Day: 13.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 84,744,328 km

• M1: 180,415 km (0.09 R)
• M2: 748,438 km (0.03 R)
• M3: 1,452,296 km (0.112 R)
• M4: 1,903,334 km (0.037 R)
• M5: 2,372,622 km (0.108 R)
• M6: 3,426,090 km (0.114 R)
• M7: 4,004,585 km (0.118 R)
• M8: 4,756,614 km (0.094 R)
• M9: 5,342,888 km (0.049 R)
• M10: 6,013,834 km (0.035 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.9

Radius: 11.8

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.95 AU - 1.41 AU

Year: 855 Days

Day: 10.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 84,744,328 km

• M1: 149,747 km (0.106 R)
• M2: 518,656 km (0.093 R)
• M3: 1,148,912 km (0.044 R)
• M4: 1,576,014 km (0.082 R)
• M5: 2,021,366 km (0.049 R)
• M6: 2,957,101 km (0.095 R)
• M7: 3,396,470 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 777.3

Radius: 10.4

Gravity: 7.19 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.33 AU - 1.61 AU

Year: 1189 Days

Day: 5.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 84,744,328 km

• M1: 129,701 km (0.053 R)
• M2: 455,376 km (0.109 R)
• M3: 833,111 km (0.065 R)
• M4: 1,197,232 km (0.09 R)
• M5: 1,588,281 km (0.091 R)
• M6: 1,950,008 km (0.117 R)
• M7: 2,426,178 km (0.054 R)
• M8: 3,020,381 km (0.109 R)
• M9: 3,645,401 km (0.087 R)
• M10: 4,499,605 km (0.079 R)
• M11: 5,315,960 km (0.053 R)
• M12: 5,891,015 km (0.082 R)
• M13: 6,459,935 km (0.076 R)
• M14: 7,140,306 km (0.103 R)
• M15: 8,305,075 km (0.104 R)
• M16: 9,439,626 km (0.111 R)
• M17: 10,283,507 km (0.082 R)
• M18: 11,177,055 km (0.098 R)
• M19: 11,660,406 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.1

Radius: 8.5

Gravity: 11.42 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.42 AU - 1.98 AU

Year: 1478 Days

Day: 5.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 84,744,328 km

• M1: 105,766 km (0.049 R)
• M2: 556,504 km (0.109 R)
• M3: 938,727 km (0.071 R)
• M4: 1,238,670 km (0.065 R)
• M5: 2,072,678 km (0.044 R)
• M6: 2,460,137 km (0.088 R)
• M7: 2,982,682 km (0.089 R)
• M8: 3,494,756 km (0.051 R)
• M9: 3,992,169 km (0.114 R)
• M10: 5,679,184 km (0.109 R)
• M11: 6,718,590 km (0.097 R)
• M12: 7,056,532 km (0.098 R)
• M13: 8,403,960 km (0.073 R)
• M14: 10,699,838 km (0.106 R)
• M15: 11,089,541 km (0.11 R)
• M16: 11,636,171 km (0.066 R)
• M17: 12,162,606 km (0.119 R)
• M18: 12,862,425 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615.6

Radius: 9.3

Gravity: 7.12 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.43 AU - 2.25 AU

Year: 1664 Days

Day: 14.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 84,744,328 km

• M1: 115,938 km (0.053 R)
• M2: 417,079 km (0.104 R)
• M3: 1,227,002 km (0.058 R)
• M4: 1,538,465 km (0.11 R)
• M5: 1,830,031 km (0.119 R)
• M6: 2,158,847 km (0.082 R)
• M7: 2,795,984 km (0.065 R)
• M8: 3,520,786 km (0.114 R)
• M9: 3,910,040 km (0.112 R)
• M10: 4,216,117 km (0.098 R)
• M11: 5,318,055 km (0.073 R)
• M12: 6,136,953 km (0.09 R)
• M13: 6,652,169 km (0.111 R)
• M14: 7,881,414 km (0.114 R)
• M15: 8,196,617 km (0.099 R)
• M16: 8,700,313 km (0.058 R)
• M17: 12,243,389 km (0.108 R)
• M18: 13,340,390 km (0.04 R)
• M19: 13,830,174 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 318.1

Radius: 14.8

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 2.55 AU - 2.85 AU

Year: 2959 Days

Day: 9.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 84,744,328 km

• M1: 188,493 km (0.104 R)
• M2: 841,638 km (0.114 R)
• M3: 1,497,923 km (0.107 R)
• M4: 2,148,674 km (0.08 R)
• M5: 2,764,419 km (0.078 R)
• M6: 3,651,534 km (0.094 R)
• M7: 4,143,711 km (0.036 R)
• M8: 7,769,814 km (0.098 R)
• M9: 9,038,703 km (0.087 R)
• M10: 10,658,399 km (0.113 R)
• M11: 11,365,698 km (0.095 R)
• M12: 13,250,033 km (0.101 R)
• M13: 14,024,352 km (0.077 R)
• M14: 15,149,776 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 953.2

Radius: 6.9

Gravity: 20.02 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 8.82 AU - 10.44 AU

Year: 19928 Days

Day: 22.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 84,744,328 km

• M1: 86,916 km (0.069 R)
• M2: 383,120 km (0.048 R)
• M3: 666,459 km (0.088 R)
• M4: 927,208 km (0.116 R)
• M5: 1,361,490 km (0.083 R)
• M6: 1,865,785 km (0.094 R)
• M7: 2,150,619 km (0.111 R)
• M8: 2,487,813 km (0.11 R)
• M9: 2,808,251 km (0.05 R)
• M10: 3,502,086 km (0.12 R)
• M11: 7,596,430 km (0.091 R)
• M12: 7,851,794 km (0.083 R)
• M13: 8,272,463 km (0.105 R)
• M14: 8,488,482 km (0.04 R)
• M15: 9,044,687 km (0.061 R)
• M16: 13,195,579 km (0.085 R)
• M17: 13,639,885 km (0.095 R)
• M18: 13,941,624 km (0.077 R)
• M19: 18,280,710 km (0.109 R)
• M20: 20,458,257 km (0.086 R)
• M21: 23,228,061 km (0.1 R)
• M22: 23,875,820 km (0.104 R)
• M23: 25,434,181 km (0.078 R)
• M24: 26,238,120 km (0.063 R)
• M25: 32,347,248 km (0.058 R)
• M26: 37,987,238 km (0.062 R)
• M27: 44,084,398 km (0.037 R)
• M28: 45,915,177 km (0.049 R)
• M29: 48,667,628 km (0.089 R)
• M30: 51,164,566 km (0.092 R)
• M31: 60,373,063 km (0.082 R)
• M32: 61,391,376 km (0.112 R)
• M33: 63,882,031 km (0.11 R)
• M34: 66,008,415 km (0.052 R)
• M35: 68,401,382 km (0.096 R)
• M36: 80,745,451 km (0.092 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 324 - 18,544 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit