🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385.9

Radius: 12.6

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.85 AU - 1.13 AU

Year: 636 Days

Day: 12.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,825,797 km

• M1: 157,078 km (0.097 R)
• M2: 556,354 km (0.082 R)
• M3: 977,472 km (0.088 R)
• M4: 1,485,357 km (0.086 R)
• M5: 2,065,348 km (0.096 R)
• M6: 2,569,343 km (0.1 R)
• M7: 3,008,862 km (0.108 R)
• M8: 3,712,122 km (0.073 R)
• M9: 4,151,491 km (0.063 R)
• M10: 4,946,454 km (0.05 R)
• M11: 5,380,587 km (0.059 R)
• M12: 5,981,521 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488.1

Radius: 9.6

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.77 AU - 1.24 AU

Year: 646 Days

Day: 13.4 Hours

Environment

Temp: -151 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 69,825,797 km

• M1: 119,529 km (0.103 R)
• M2: 427,401 km (0.04 R)
• M3: 791,373 km (0.108 R)
• M4: 1,191,547 km (0.091 R)
• M5: 1,987,557 km (0.115 R)
• M6: 2,305,303 km (0.115 R)
• M7: 2,731,807 km (0.06 R)
• M8: 3,115,226 km (0.093 R)
• M9: 3,678,013 km (0.094 R)
• M10: 4,190,236 km (0.088 R)
• M11: 4,702,310 km (0.099 R)
• M12: 5,121,633 km (0.073 R)
• M13: 5,979,876 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.9

Radius: 10.5

Gravity: 6.34 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.06 AU - 1.4 AU

Year: 881 Days

Day: 5.3 Hours

Environment

Temp: -175 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 69,825,797 km

• M1: 130,599 km (0.097 R)
• M2: 702,512 km (0.047 R)
• M3: 1,047,634 km (0.063 R)
• M4: 1,557,314 km (0.059 R)
• M5: 1,988,006 km (0.028 R)
• M6: 2,612,128 km (0.05 R)
• M7: 3,015,444 km (0.066 R)
• M8: 3,474,411 km (0.105 R)
• M9: 3,811,006 km (0.063 R)
• M10: 4,201,606 km (0.116 R)
• M11: 4,954,681 km (0.062 R)
• M12: 5,459,724 km (0.087 R)
• M13: 7,539,433 km (0.105 R)
• M14: 8,031,610 km (0.091 R)
• M15: 8,545,030 km (0.102 R)
• M16: 8,944,307 km (0.068 R)
• M17: 9,468,049 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712

Radius: 13.6

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.3 AU - 2.14 AU

Year: 1456 Days

Day: 10.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 115.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 69,825,797 km

• M1: 169,195 km (0.037 R)
• M2: 646,113 km (0.096 R)
• M3: 1,284,298 km (0.092 R)
• M4: 1,818,213 km (0.042 R)
• M5: 2,626,939 km (0.048 R)
• M6: 3,241,337 km (0.097 R)
• M7: 3,780,338 km (0.119 R)
• M8: 4,360,778 km (0.104 R)
• M9: 5,374,752 km (0.102 R)
• M10: 6,228,208 km (0.1 R)
• M11: 7,460,147 km (0.083 R)
• M12: 8,148,446 km (0.116 R)
• M13: 9,652,204 km (0.093 R)
• M14: 11,052,440 km (0.079 R)
• M15: 12,698,914 km (0.119 R)
• M16: 13,401,276 km (0.049 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 841.6

Radius: 8.8

Gravity: 10.87 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.65 AU - 1.99 AU

Year: 1585 Days

Day: 8.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 69,825,797 km

• M1: 109,655 km (0.068 R)
• M2: 484,996 km (0.108 R)
• M3: 909,405 km (0.107 R)
• M4: 1,381,088 km (0.087 R)
• M5: 1,909,168 km (0.113 R)
• M6: 2,620,356 km (0.105 R)
• M7: 3,128,839 km (0.103 R)
• M8: 4,059,637 km (0.078 R)
• M9: 4,420,916 km (0.116 R)
• M10: 5,497,722 km (0.066 R)
• M11: 6,766,611 km (0.114 R)
• M12: 8,340,530 km (0.039 R)
• M13: 9,505,748 km (0.092 R)
• M14: 13,317,202 km (0.115 R)
• M15: 14,726,564 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.7

Radius: 12.8

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 2.71 AU - 4.03 AU

Year: 3994 Days

Day: 14.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 69,825,797 km

• M1: 160,070 km (0.075 R)
• M2: 586,424 km (0.08 R)
• M3: 1,160,730 km (0.097 R)
• M4: 1,666,819 km (0.077 R)
• M5: 2,348,238 km (0.094 R)
• M6: 2,770,852 km (0.079 R)
• M7: 3,832,398 km (0.047 R)
• M8: 5,870,071 km (0.086 R)
• M9: 7,325,658 km (0.09 R)
• M10: 8,171,784 km (0.065 R)
• M11: 9,375,448 km (0.115 R)
• M12: 10,452,553 km (0.063 R)
• M13: 10,856,766 km (0.115 R)
• M14: 11,956,759 km (0.067 R)
• M15: 13,036,706 km (0.119 R)
• M16: 13,840,346 km (0.032 R)
• M17: 16,127,548 km (0.105 R)
• M18: 17,445,356 km (0.115 R)
• M19: 19,012,393 km (0.083 R)
• M20: 22,358,299 km (0.04 R)

Asteroid Belt

Center: 4.3 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 525.7

Radius: 8

Gravity: 8.21 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 5.07 AU - 5.37 AU

Year: 7701 Days

Day: 5.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 69,825,797 km

• M1: 103,821 km (0.087 R)
• M2: 363,822 km (0.092 R)
• M3: 620,682 km (0.072 R)
• M4: 898,036 km (0.112 R)
• M5: 1,350,121 km (0.063 R)
• M6: 2,417,651 km (0.111 R)
• M7: 3,274,548 km (0.113 R)
• M8: 4,559,145 km (0.073 R)
• M9: 5,511,934 km (0.074 R)
• M10: 6,019,070 km (0.041 R)
• M11: 6,487,910 km (0.081 R)
• M12: 7,612,886 km (0.05 R)
• M13: 8,778,253 km (0.076 R)
• M14: 9,033,467 km (0.045 R)
• M15: 9,425,563 km (0.091 R)
• M16: 10,912,716 km (0.118 R)
• M17: 12,126,254 km (0.085 R)
• M18: 13,709,598 km (0.088 R)
• M19: 14,999,431 km (0.114 R)
• M20: 16,951,533 km (0.099 R)
• M21: 17,818,453 km (0.07 R)
• M22: 22,049,081 km (0.112 R)
• M23: 26,108,419 km (0.074 R)
• M24: 28,359,717 km (0.116 R)
• M25: 31,724,472 km (0.07 R)
• M26: 32,125,245 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 678.5

Radius: 6.9

Gravity: 14.25 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 7.77 AU - 10.39 AU

Year: 17666 Days

Day: 21.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 69,825,797 km

• M1: 87,216 km (0.036 R)
• M2: 945,459 km (0.094 R)
• M3: 1,175,540 km (0.086 R)
• M4: 1,649,765 km (0.072 R)
• M5: 2,592,082 km (0.119 R)
• M6: 4,515,761 km (0.119 R)
• M7: 4,927,604 km (0.075 R)
• M8: 6,148,921 km (0.087 R)
• M9: 10,945,777 km (0.084 R)
• M10: 14,924,781 km (0.082 R)
• M11: 18,367,776 km (0.097 R)
• M12: 18,799,516 km (0.095 R)
• M13: 21,534,165 km (0.106 R)
• M14: 22,797,369 km (0.071 R)
• M15: 25,364,319 km (0.037 R)
• M16: 26,333,713 km (0.039 R)
• M17: 28,003,824 km (0.053 R)
• M18: 43,066,235 km (0.08 R)
• M19: 48,919,701 km (0.053 R)
• M20: 65,123,543 km (0.062 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 212 - 10,993 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit