🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.19

Radius: 0.51

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.53 AU - 0.75 AU

Year: 336 Days

Day: 39.3 Hours

Environment

Temp: -126 °C

Axial Tilt: 10.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,599,415 km

• M1: 43,084 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.6

Radius: 11.5

Gravity: 6.18 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.7 AU - 0.76 AU

Year: 409 Days

Day: 5.3 Hours

Environment

Temp: -133 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 58,599,415 km

• M1: 143,016 km (0.077 R)
• M2: 540,348 km (0.109 R)
• M3: 938,727 km (0.101 R)
• M4: 1,365,978 km (0.106 R)
• M5: 2,004,611 km (0.092 R)
• M6: 2,379,953 km (0.085 R)
• M7: 2,876,169 km (0.112 R)
• M8: 3,997,704 km (0.05 R)
• M9: 5,054,463 km (0.117 R)
• M10: 5,776,123 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.4

Radius: 12.8

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 2.45 AU - 3.83 AU

Year: 3650 Days

Day: 11.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 58,599,415 km

• M1: 166,802 km (0.057 R)
• M2: 591,959 km (0.098 R)
• M3: 1,055,712 km (0.083 R)
• M4: 1,479,523 km (0.118 R)
• M5: 1,993,392 km (0.108 R)
• M6: 2,641,450 km (0.092 R)
• M7: 3,148,886 km (0.113 R)
• M8: 3,969,131 km (0.062 R)
• M9: 4,902,771 km (0.051 R)
• M10: 5,408,711 km (0.096 R)
• M11: 6,676,104 km (0.103 R)
• M12: 7,203,437 km (0.085 R)
• M13: 11,359,714 km (0.078 R)
• M14: 12,113,089 km (0.049 R)
• M15: 14,067,286 km (0.095 R)
• M16: 15,251,503 km (0.091 R)
• M17: 16,058,883 km (0.096 R)
• M18: 20,017,541 km (0.101 R)
• M19: 20,465,438 km (0.063 R)
• M20: 22,530,038 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.9

Radius: 14.5

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 5.09 AU - 5.99 AU

Year: 8554 Days

Day: 10.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 58,599,415 km

• M1: 181,013 km (0.105 R)
• M2: 776,712 km (0.112 R)
• M3: 1,686,417 km (0.098 R)
• M4: 3,064,363 km (0.109 R)
• M5: 5,494,281 km (0.049 R)
• M6: 8,790,072 km (0.097 R)
• M7: 10,340,953 km (0.036 R)
• M8: 10,830,287 km (0.076 R)
• M9: 14,578,911 km (0.091 R)
• M10: 21,707,399 km (0.091 R)
• M11: 29,677,226 km (0.12 R)
• M12: 32,092,184 km (0.042 R)
• M13: 33,030,611 km (0.096 R)
• M14: 37,769,274 km (0.103 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 980.7

Radius: 6.2

Gravity: 25.51 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 7.13 AU - 7.25 AU

Year: 12647 Days

Day: 20.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 58,599,415 km

• M1: 77,641 km (0.064 R)
• M2: 281,693 km (0.089 R)
• M3: 620,682 km (0.08 R)
• M4: 1,680,732 km (0.11 R)
• M5: 2,782,670 km (0.102 R)
• M6: 4,207,291 km (0.072 R)
• M7: 5,982,120 km (0.089 R)
• M8: 7,823,969 km (0.114 R)
• M9: 8,301,036 km (0.094 R)
• M10: 8,797,252 km (0.08 R)
• M11: 10,013,633 km (0.06 R)
• M12: 11,825,113 km (0.089 R)
• M13: 12,389,396 km (0.063 R)
• M14: 14,470,901 km (0.113 R)
• M15: 17,647,911 km (0.088 R)
• M16: 19,312,337 km (0.109 R)
• M17: 22,950,109 km (0.09 R)
• M18: 24,625,455 km (0.087 R)
• M19: 26,486,453 km (0.067 R)
• M20: 27,997,242 km (0.11 R)
• M21: 29,678,871 km (0.033 R)
• M22: 30,836,459 km (0.106 R)
• M23: 32,386,144 km (0.06 R)
• M24: 35,125,580 km (0.054 R)
• M25: 37,345,313 km (0.059 R)
• M26: 39,518,522 km (0.063 R)
• M27: 42,496,566 km (0.062 R)
• M28: 51,327,628 km (0.113 R)
• M29: 51,657,940 km (0.06 R)
• M30: 56,432,057 km (0.031 R)
• M31: 57,137,261 km (0.09 R)
• M32: 58,205,988 km (0.119 R)
• M33: 60,383,385 km (0.106 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 344.8

Radius: 4.7

Gravity: 15.61 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 5.79 AU - 8.69 AU

Year: 12780 Days

Day: 22.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 117.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 58,599,415 km

• M1: 59,989 km (0.086 R)
• M2: 361,279 km (0.027 R)
• M3: 693,985 km (0.034 R)
• M4: 931,396 km (0.118 R)
• M5: 1,293,573 km (0.107 R)
• M6: 1,487,003 km (0.118 R)
• M7: 1,714,392 km (0.026 R)
• M8: 2,366,938 km (0.103 R)
• M9: 2,885,593 km (0.1 R)
• M10: 5,238,020 km (0.102 R)
• M11: 5,399,137 km (0.085 R)
• M12: 6,621,950 km (0.064 R)
• M13: 6,887,037 km (0.112 R)
• M14: 8,276,203 km (0.086 R)
• M15: 8,583,776 km (0.079 R)
• M16: 9,939,731 km (0.103 R)
• M17: 11,006,663 km (0.113 R)
• M18: 11,649,485 km (0.096 R)
• M19: 12,091,697 km (0.063 R)
• M20: 13,305,683 km (0.066 R)
• M21: 13,911,555 km (0.042 R)
• M22: 14,409,117 km (0.051 R)
• M23: 15,177,751 km (0.046 R)
• M24: 17,147,506 km (0.108 R)
• M25: 20,691,181 km (0.114 R)
• M26: 23,191,260 km (0.053 R)
• M27: 23,539,075 km (0.056 R)
• M28: 25,978,717 km (0.033 R)
• M29: 27,598,264 km (0.103 R)
• M30: 28,383,204 km (0.088 R)
• M31: 28,581,720 km (0.051 R)
• M32: 29,792,566 km (0.116 R)
• M33: 33,187,540 km (0.113 R)
• M34: 34,864,233 km (0.072 R)
• M35: 36,831,744 km (0.098 R)
• M36: 40,356,718 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 289.1

Radius: 3.5

Gravity: 23.6 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 9.9 AU - 10.14 AU

Year: 20807 Days

Day: 15.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 58,599,415 km

• M1: 46,675 km (0.046 R)
• M2: 306,526 km (0.074 R)
• M3: 526,136 km (0.093 R)
• M4: 667,057 km (0.048 R)
• M5: 883,675 km (0.054 R)
• M6: 1,413,401 km (0.119 R)
• M7: 1,546,842 km (0.11 R)
• M8: 1,944,324 km (0.096 R)
• M9: 2,053,680 km (0.066 R)
• M10: 2,730,161 km (0.106 R)
• M11: 3,206,182 km (0.066 R)
• M12: 3,437,460 km (0.106 R)
• M13: 6,600,557 km (0.115 R)
• M14: 6,932,515 km (0.071 R)
• M15: 7,765,476 km (0.047 R)
• M16: 8,041,783 km (0.1 R)
• M17: 11,826,759 km (0.094 R)
• M18: 13,139,480 km (0.12 R)
• M19: 15,756,246 km (0.099 R)
• M20: 17,263,594 km (0.099 R)
• M21: 17,576,254 km (0.047 R)
• M22: 19,447,424 km (0.115 R)
• M23: 20,214,412 km (0.073 R)
• M24: 21,090,009 km (0.053 R)
• M25: 23,104,793 km (0.059 R)
• M26: 24,255,948 km (0.096 R)
• M27: 25,646,760 km (0.1 R)
• M28: 26,156,141 km (0.085 R)
• M29: 26,985,062 km (0.045 R)
• M30: 28,477,600 km (0.04 R)
• M31: 29,799,896 km (0.062 R)
• M32: 32,211,414 km (0.053 R)
• M33: 34,626,073 km (0.097 R)
• M34: 40,220,435 km (0.114 R)
• M35: 41,184,593 km (0.047 R)
• M36: 47,143,375 km (0.081 R)
• M37: 49,931,431 km (0.112 R)
• M38: 54,987,390 km (0.112 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: 347 - 16,794 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit