🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 498

Radius: 9.6

Gravity: 5.4 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.6 AU - 0.98 AU

Year: 453 Days

Day: 5.2 Hours

Environment

Temp: -144 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 14,225,434 km

• M1: 119,977 km (0.045 R)
• M2: 432,487 km (0.073 R)
• M3: 789,428 km (0.113 R)
• M4: 1,101,788 km (0.083 R)
• M5: 1,459,776 km (0.08 R)
• M6: 2,362,898 km (0.078 R)
• M7: 2,722,382 km (0.116 R)
• M8: 3,173,420 km (0.114 R)
• M9: 3,747,726 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.9

Radius: 14.8

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.79 AU - 1.31 AU

Year: 695 Days

Day: 13.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 14,225,434 km

• M1: 192,981 km (0.094 R)
• M2: 694,433 km (0.065 R)
• M3: 1,247,945 km (0.049 R)
• M4: 1,749,697 km (0.108 R)
• M5: 2,276,880 km (0.086 R)
• M6: 2,758,884 km (0.067 R)
• M7: 3,375,526 km (0.078 R)
• M8: 4,008,325 km (0.069 R)
• M9: 5,702,671 km (0.076 R)
• M10: 6,775,138 km (0.045 R)
• M11: 7,577,731 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.7

Radius: 9.2

Gravity: 5.08 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.89 AU - 1.31 AU

Year: 745 Days

Day: 7.3 Hours

Environment

Temp: -156 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 14,225,434 km

• M1: 114,891 km (0.096 R)
• M2: 442,511 km (0.077 R)
• M3: 748,737 km (0.076 R)
• M4: 1,040,752 km (0.094 R)
• M5: 1,390,363 km (0.082 R)
• M6: 1,705,565 km (0.115 R)
• M7: 2,226,615 km (0.091 R)
• M8: 2,861,658 km (0.099 R)
• M9: 3,203,788 km (0.106 R)
• M10: 3,900,166 km (0.088 R)
• M11: 5,188,952 km (0.052 R)
• M12: 6,129,174 km (0.094 R)
• M13: 7,094,081 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 689.2

Radius: 10.5

Gravity: 6.25 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.64 AU - 1.96 AU

Year: 1559 Days

Day: 13.7 Hours

Environment

Temp: -177 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 14,225,434 km

• M1: 130,599 km (0.053 R)
• M2: 537,206 km (0.04 R)
• M3: 999,613 km (0.066 R)
• M4: 1,655,001 km (0.05 R)
• M5: 2,148,076 km (0.119 R)
• M6: 2,904,293 km (0.08 R)
• M7: 3,243,880 km (0.114 R)
• M8: 4,560,940 km (0.097 R)
• M9: 5,105,775 km (0.044 R)
• M10: 5,514,776 km (0.065 R)
• M11: 6,086,389 km (0.1 R)
• M12: 7,647,443 km (0.096 R)
• M13: 8,069,160 km (0.065 R)
• M14: 8,625,514 km (0.082 R)
• M15: 11,253,649 km (0.12 R)
• M16: 11,799,981 km (0.051 R)
• M17: 12,402,112 km (0.057 R)
• M18: 13,263,347 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901.4

Radius: 9.2

Gravity: 10.65 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 2.18 AU - 2.8 AU

Year: 2537 Days

Day: 11.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 14,225,434 km

• M1: 114,442 km (0.104 R)
• M2: 414,835 km (0.104 R)
• M3: 768,783 km (0.11 R)
• M4: 1,245,103 km (0.104 R)
• M5: 1,546,842 km (0.085 R)
• M6: 1,885,681 km (0.066 R)
• M7: 2,219,434 km (0.058 R)
• M8: 2,731,358 km (0.088 R)
• M9: 3,109,392 km (0.048 R)
• M10: 3,635,677 km (0.028 R)
• M11: 4,889,756 km (0.074 R)
• M12: 5,274,821 km (0.099 R)
• M13: 6,215,792 km (0.08 R)
• M14: 6,668,175 km (0.113 R)
• M15: 7,481,539 km (0.105 R)
• M16: 9,709,500 km (0.074 R)
• M17: 10,397,351 km (0.102 R)
• M18: 11,912,927 km (0.11 R)
• M19: 12,390,593 km (0.109 R)
• M20: 14,043,650 km (0.077 R)
• M21: 14,626,034 km (0.086 R)
• M22: 15,325,703 km (0.073 R)
• M23: 17,782,100 km (0.073 R)
• M24: 20,000,338 km (0.087 R)
• M25: 20,613,390 km (0.105 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 457.9

Radius: 4.4

Gravity: 23.65 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 4.96 AU - 7.3 AU

Year: 9800 Days

Day: 20.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 14,225,434 km

• M1: 54,902 km (0.118 R)
• M2: 254,017 km (0.033 R)
• M3: 604,375 km (0.076 R)
• M4: 961,166 km (0.117 R)
• M5: 1,370,167 km (0.092 R)
• M6: 1,511,836 km (0.076 R)
• M7: 2,079,261 km (0.111 R)
• M8: 2,356,615 km (0.043 R)
• M9: 3,027,562 km (0.112 R)
• M10: 3,596,333 km (0.062 R)
• M11: 5,794,225 km (0.073 R)
• M12: 8,974,227 km (0.106 R)
• M13: 10,930,518 km (0.104 R)
• M14: 11,765,424 km (0.045 R)
• M15: 12,811,113 km (0.108 R)
• M16: 14,218,679 km (0.074 R)
• M17: 16,720,404 km (0.067 R)
• M18: 20,647,199 km (0.093 R)
• M19: 21,676,582 km (0.066 R)
• M20: 23,326,497 km (0.105 R)
• M21: 23,751,654 km (0.088 R)
• M22: 25,146,953 km (0.075 R)
• M23: 25,684,010 km (0.079 R)
• M24: 26,780,861 km (0.091 R)
• M25: 27,435,053 km (0.1 R)
• M26: 28,099,716 km (0.068 R)
• M27: 34,134,494 km (0.111 R)
• M28: 35,236,133 km (0.079 R)
• M29: 39,039,659 km (0.089 R)
• M30: 40,855,328 km (0.046 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 140.6

Radius: 7.6

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 5.45 AU - 8.31 AU

Year: 11652 Days

Day: 15.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 14,225,434 km

• M1: 96,640 km (0.032 R)
• M2: 515,365 km (0.1 R)
• M3: 772,374 km (0.07 R)
• M4: 1,793,828 km (0.105 R)
• M5: 3,482,190 km (0.116 R)
• M6: 4,358,085 km (0.055 R)
• M7: 4,955,130 km (0.12 R)
• M8: 5,664,823 km (0.102 R)
• M9: 6,184,825 km (0.097 R)
• M10: 6,472,651 km (0.065 R)
• M11: 7,110,088 km (0.101 R)
• M12: 8,946,551 km (0.105 R)
• M13: 9,996,130 km (0.04 R)
• M14: 15,309,547 km (0.056 R)
• M15: 16,196,363 km (0.043 R)
• M16: 16,621,670 km (0.108 R)
• M17: 16,992,074 km (0.072 R)
• M18: 21,511,426 km (0.09 R)
• M19: 22,025,444 km (0.096 R)
• M20: 25,773,020 km (0.11 R)
• M21: 28,494,804 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 12

Radius: 4.2

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 5.62 AU - 8.58 AU

Year: 12215 Days

Day: 18.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 14,225,434 km

• M1: 55,501 km (0.111 R)
• M2: 2,138,502 km (0.101 R)
• M3: 2,296,477 km (0.086 R)
• M4: 4,201,456 km (0.072 R)
• M5: 6,079,508 km (0.104 R)
• M6: 6,830,040 km (0.104 R)
• M7: 7,866,903 km (0.11 R)
• M8: 9,289,130 km (0.092 R)
• M9: 12,907,903 km (0.083 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 548 - 18,308 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit