🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.11

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.53 AU - 0.81 AU

Year: 354 Days

Day: 32.2 Hours

Environment

Temp: -132 °C

Axial Tilt: 2.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.8

Radius: 12.2

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.77 AU - 0.89 AU

Year: 488 Days

Day: 14.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,546,693 km

• M1: 151,692 km (0.118 R)
• M2: 589,416 km (0.098 R)
• M3: 1,217,278 km (0.088 R)
• M4: 1,782,459 km (0.099 R)
• M5: 2,402,243 km (0.087 R)
• M6: 2,958,148 km (0.073 R)
• M7: 3,534,100 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 508.8

Radius: 13.5

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.83 AU - 2.07 AU

Year: 1758 Days

Day: 11.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,546,693 km

• M1: 168,148 km (0.059 R)
• M2: 604,675 km (0.057 R)
• M3: 1,035,516 km (0.071 R)
• M4: 1,656,048 km (0.091 R)
• M5: 2,115,015 km (0.102 R)
• M6: 2,620,655 km (0.104 R)
• M7: 3,088,897 km (0.114 R)
• M8: 4,269,523 km (0.117 R)
• M9: 4,743,748 km (0.114 R)
• M10: 5,232,186 km (0.028 R)
• M11: 5,687,113 km (0.093 R)
• M12: 7,425,290 km (0.096 R)
• M13: 8,228,930 km (0.112 R)
• M14: 9,337,749 km (0.086 R)
• M15: 10,108,627 km (0.068 R)
• M16: 10,956,398 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 945.9

Radius: 8.7

Gravity: 12.5 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 3.69 AU - 4.27 AU

Year: 5127 Days

Day: 10.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 66,546,693 km

• M1: 108,159 km (0.12 R)
• M2: 501,602 km (0.085 R)
• M3: 1,019,210 km (0.11 R)
• M4: 1,765,554 km (0.033 R)
• M5: 2,192,806 km (0.096 R)
• M6: 3,234,755 km (0.034 R)
• M7: 3,692,075 km (0.12 R)
• M8: 4,602,827 km (0.113 R)
• M9: 5,096,650 km (0.067 R)
• M10: 5,415,593 km (0.081 R)
• M11: 5,778,667 km (0.062 R)
• M12: 6,553,883 km (0.081 R)
• M13: 7,001,779 km (0.071 R)
• M14: 7,287,511 km (0.087 R)
• M15: 8,429,242 km (0.088 R)
• M16: 10,543,658 km (0.046 R)
• M17: 10,919,747 km (0.085 R)
• M18: 11,899,015 km (0.12 R)
• M19: 13,150,251 km (0.084 R)
• M20: 14,258,023 km (0.09 R)
• M21: 15,010,800 km (0.107 R)
• M22: 17,298,151 km (0.052 R)
• M23: 18,900,345 km (0.073 R)
• M24: 19,666,884 km (0.083 R)
• M25: 20,022,029 km (0.114 R)
• M26: 21,711,289 km (0.075 R)
• M27: 27,522,867 km (0.05 R)
• M28: 30,736,079 km (0.102 R)
• M29: 33,078,632 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.9

Radius: 9.7

Gravity: 8.82 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 4.51 AU - 4.67 AU

Year: 6349 Days

Day: 7.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 66,546,693 km

• M1: 120,725 km (0.074 R)
• M2: 464,202 km (0.089 R)
• M3: 789,578 km (0.077 R)
• M4: 1,230,742 km (0.097 R)
• M5: 1,548,039 km (0.11 R)
• M6: 1,995,935 km (0.04 R)
• M7: 2,546,904 km (0.032 R)
• M8: 2,908,482 km (0.099 R)
• M9: 3,549,509 km (0.047 R)
• M10: 4,656,832 km (0.05 R)
• M11: 5,442,071 km (0.102 R)
• M12: 5,980,025 km (0.118 R)
• M13: 7,274,047 km (0.052 R)
• M14: 7,576,833 km (0.06 R)
• M15: 8,370,749 km (0.055 R)
• M16: 14,818,866 km (0.044 R)
• M17: 16,250,368 km (0.063 R)
• M18: 16,769,173 km (0.083 R)
• M19: 17,299,049 km (0.114 R)
• M20: 18,253,184 km (0.068 R)
• M21: 21,172,587 km (0.117 R)
• M22: 24,643,407 km (0.104 R)
• M23: 30,976,633 km (0.118 R)
• M24: 34,996,477 km (0.032 R)
• M25: 35,644,385 km (0.062 R)
• M26: 36,630,983 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.6

Radius: 12.5

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 4.23 AU - 6.57 AU

Year: 8102 Days

Day: 6.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 66,546,693 km

• M1: 155,881 km (0.105 R)
• M2: 552,016 km (0.117 R)
• M3: 1,116,449 km (0.113 R)
• M4: 1,507,049 km (0.066 R)
• M5: 2,141,194 km (0.063 R)
• M6: 3,422,500 km (0.092 R)
• M7: 4,555,854 km (0.065 R)
• M8: 5,005,545 km (0.11 R)
• M9: 8,536,354 km (0.103 R)
• M10: 10,603,198 km (0.047 R)
• M11: 11,451,268 km (0.109 R)
• M12: 12,401,514 km (0.103 R)
• M13: 13,103,277 km (0.081 R)
• M14: 14,974,148 km (0.114 R)
• M15: 16,664,156 km (0.04 R)
• M16: 17,088,116 km (0.115 R)
• M17: 19,239,333 km (0.102 R)
• M18: 22,238,920 km (0.045 R)
• M19: 26,769,941 km (0.059 R)
• M20: 29,455,970 km (0.049 R)
• M21: 29,972,532 km (0.117 R)
• M22: 33,871,202 km (0.044 R)
• M23: 36,888,741 km (0.099 R)
• M24: 38,095,696 km (0.077 R)
• M25: 38,708,898 km (0.051 R)
• M26: 39,578,510 km (0.06 R)
• M27: 40,715,604 km (0.052 R)
• M28: 43,586,985 km (0.082 R)
• M29: 44,123,144 km (0.082 R)
• M30: 44,528,105 km (0.053 R)
• M31: 46,451,186 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 57.1

Radius: 6.3

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 6.52 AU - 6.9 AU

Year: 11223 Days

Day: 16 Hours

Environment

Temp: -224 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,546,693 km

• M1: 78,389 km (0.057 R)
• M2: 925,562 km (0.099 R)
• M3: 1,324,689 km (0.082 R)
• M4: 1,700,629 km (0.119 R)
• M5: 2,912,072 km (0.086 R)
• M6: 5,606,330 km (0.117 R)
• M7: 13,434,338 km (0.117 R)
• M8: 13,771,082 km (0.098 R)
• M9: 16,505,731 km (0.092 R)
• M10: 16,947,644 km (0.065 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 482.8

Radius: 6.8

Gravity: 10.44 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 7.06 AU - 9.24 AU

Year: 15023 Days

Day: 20.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 66,546,693 km

• M1: 84,523 km (0.071 R)
• M2: 486,193 km (0.038 R)
• M3: 764,296 km (0.039 R)
• M4: 1,021,903 km (0.111 R)
• M5: 1,967,212 km (0.119 R)
• M6: 2,626,490 km (0.065 R)
• M7: 2,914,466 km (0.07 R)
• M8: 3,348,000 km (0.037 R)
• M9: 3,768,520 km (0.088 R)
• M10: 4,495,566 km (0.065 R)
• M11: 4,715,026 km (0.1 R)
• M12: 5,522,555 km (0.12 R)
• M13: 6,617,312 km (0.093 R)
• M14: 9,178,428 km (0.109 R)
• M15: 10,107,730 km (0.112 R)
• M16: 11,558,829 km (0.099 R)
• M17: 13,724,408 km (0.103 R)
• M18: 14,187,862 km (0.072 R)
• M19: 14,593,422 km (0.09 R)
• M20: 19,002,221 km (0.119 R)
• M21: 22,087,527 km (0.064 R)
• M22: 23,654,266 km (0.082 R)
• M23: 24,320,425 km (0.076 R)
• M24: 25,392,294 km (0.117 R)
• M25: 26,495,428 km (0.089 R)
• M26: 27,317,469 km (0.109 R)
• M27: 30,888,819 km (0.095 R)
• M28: 40,272,345 km (0.107 R)
• M29: 41,358,426 km (0.064 R)
• M30: 47,532,779 km (0.057 R)
• M31: 52,026,699 km (0.072 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 667.7

Radius: 3.7

Gravity: 48.77 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 7.53 AU - 9.87 AU

Year: 16569 Days

Day: 20.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 66,546,693 km

• M1: 46,525 km (0.074 R)
• M2: 232,475 km (0.119 R)
• M3: 546,780 km (0.112 R)
• M4: 716,125 km (0.114 R)
• M5: 1,384,229 km (0.043 R)
• M6: 1,859,502 km (0.076 R)
• M7: 2,008,052 km (0.113 R)
• M8: 2,392,668 km (0.06 R)
• M9: 2,946,330 km (0.081 R)
• M10: 3,200,646 km (0.085 R)
• M11: 3,333,190 km (0.104 R)
• M12: 3,930,385 km (0.098 R)
• M13: 6,065,595 km (0.044 R)
• M14: 6,351,477 km (0.112 R)
• M15: 6,689,269 km (0.092 R)
• M16: 9,289,130 km (0.092 R)
• M17: 10,870,380 km (0.113 R)
• M18: 11,976,656 km (0.093 R)
• M19: 19,514,444 km (0.094 R)
• M20: 23,847,397 km (0.097 R)
• M21: 24,049,054 km (0.087 R)
• M22: 25,387,955 km (0.045 R)
• M23: 27,988,864 km (0.103 R)
• M24: 33,839,637 km (0.083 R)
• M25: 36,578,325 km (0.086 R)
• M26: 38,207,895 km (0.104 R)
• M27: 38,900,832 km (0.089 R)
• M28: 39,040,407 km (0.118 R)
• M29: 48,363,645 km (0.06 R)
• M30: 49,174,316 km (0.117 R)
• M31: 50,324,425 km (0.109 R)
• M32: 50,989,537 km (0.086 R)
• M33: 54,229,527 km (0.094 R)
• M34: 54,928,598 km (0.108 R)
• M35: 56,344,841 km (0.039 R)
• M36: 57,603,857 km (0.114 R)
• M37: 64,571,527 km (0.081 R)
• M38: 65,751,855 km (0.113 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 271 - 11,351 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit