🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.25

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.44 AU - 0.66 AU

Year: 268 Days

Day: 45 Hours

Environment

Temp: -113 °C

Axial Tilt: 36.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 71,949,035 km

• M1: 548,426 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 367.1

Radius: 8.2

Gravity: 5.46 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.81 AU - 1.21 AU

Year: 666 Days

Day: 9.6 Hours

Environment

Temp: -155 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 71,949,035 km

• M1: 102,026 km (0.08 R)
• M2: 433,834 km (0.076 R)
• M3: 714,629 km (0.097 R)
• M4: 1,441,226 km (0.076 R)
• M5: 2,242,472 km (0.11 R)
• M6: 2,530,448 km (0.098 R)
• M7: 2,975,502 km (0.039 R)
• M8: 3,240,739 km (0.094 R)
• M9: 3,547,115 km (0.078 R)
• M10: 4,105,564 km (0.113 R)
• M11: 4,659,974 km (0.068 R)
• M12: 4,955,429 km (0.114 R)
• M13: 5,846,584 km (0.075 R)
• M14: 6,320,959 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.9

Radius: 12.9

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.21 AU - 1.23 AU

Year: 884 Days

Day: 12.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,949,035 km

• M1: 160,519 km (0.099 R)
• M2: 757,564 km (0.107 R)
• M3: 1,205,011 km (0.043 R)
• M4: 1,644,978 km (0.028 R)
• M5: 2,097,213 km (0.119 R)
• M6: 3,165,790 km (0.04 R)
• M7: 4,065,921 km (0.114 R)
• M8: 5,065,533 km (0.09 R)
• M9: 5,649,564 km (0.091 R)
• M10: 6,093,869 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.4

Radius: 9.5

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.35 AU - 1.77 AU

Year: 1278 Days

Day: 12.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 71,949,035 km

• M1: 119,080 km (0.081 R)
• M2: 429,346 km (0.043 R)
• M3: 1,390,512 km (0.077 R)
• M4: 2,391,023 km (0.106 R)
• M5: 4,816,154 km (0.112 R)
• M6: 5,150,505 km (0.083 R)
• M7: 5,467,952 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.7

Radius: 8

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.81 AU - 2.23 AU

Year: 1883 Days

Day: 7.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 71,949,035 km

• M1: 189,391 km (0.101 R)
• M2: 444,006 km (0.112 R)
• M3: 747,840 km (0.098 R)
• M4: 1,419,684 km (0.085 R)
• M5: 2,320,562 km (0.055 R)
• M6: 2,767,411 km (0.09 R)
• M7: 6,103,444 km (0.081 R)
• M8: 7,216,751 km (0.049 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124

Radius: 12.9

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.65 AU - 2.65 AU

Year: 2068 Days

Day: 10.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 71,949,035 km

• M1: 170,093 km (0.097 R)
• M2: 866,022 km (0.047 R)
• M3: 1,595,910 km (0.057 R)
• M4: 2,036,326 km (0.103 R)
• M5: 2,650,276 km (0.118 R)
• M6: 3,262,879 km (0.113 R)
• M7: 3,999,499 km (0.092 R)
• M8: 6,256,781 km (0.098 R)
• M9: 9,042,144 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885.3

Radius: 12.7

Gravity: 5.49 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 3.2 AU - 3.98 AU

Year: 4462 Days

Day: 8.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 71,949,035 km

• M1: 157,975 km (0.068 R)
• M2: 556,654 km (0.106 R)
• M3: 1,133,353 km (0.105 R)
• M4: 1,770,192 km (0.076 R)
• M5: 3,033,845 km (0.056 R)
• M6: 3,618,174 km (0.071 R)
• M7: 4,398,028 km (0.106 R)
• M8: 4,854,750 km (0.091 R)
• M9: 9,077,449 km (0.118 R)
• M10: 10,876,513 km (0.117 R)
• M11: 11,384,697 km (0.082 R)
• M12: 13,211,138 km (0.064 R)
• M13: 14,112,914 km (0.079 R)
• M14: 14,829,936 km (0.089 R)
• M15: 17,752,480 km (0.03 R)
• M16: 18,392,909 km (0.102 R)
• M17: 18,850,379 km (0.106 R)
• M18: 21,181,563 km (0.113 R)
• M19: 22,788,692 km (0.052 R)
• M20: 23,316,773 km (0.097 R)
• M21: 27,329,137 km (0.073 R)
• M22: 27,754,145 km (0.084 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 420.1

Radius: 5.9

Gravity: 12.07 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 6.24 AU - 6.5 AU

Year: 10547 Days

Day: 24.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 71,949,035 km

• M1: 73,453 km (0.094 R)
• M2: 269,575 km (0.057 R)
• M3: 585,825 km (0.099 R)
• M4: 893,249 km (0.091 R)
• M5: 1,292,226 km (0.119 R)
• M6: 1,879,398 km (0.085 R)
• M7: 2,071,631 km (0.087 R)
• M8: 2,294,682 km (0.036 R)
• M9: 2,591,334 km (0.096 R)
• M10: 4,173,332 km (0.072 R)
• M11: 4,418,822 km (0.055 R)
• M12: 5,433,993 km (0.065 R)
• M13: 6,780,075 km (0.104 R)
• M14: 7,235,451 km (0.083 R)
• M15: 8,506,285 km (0.062 R)
• M16: 8,812,661 km (0.1 R)
• M17: 9,823,643 km (0.112 R)
• M18: 19,005,362 km (0.037 R)
• M19: 20,999,352 km (0.103 R)
• M20: 23,554,035 km (0.095 R)
• M21: 24,861,371 km (0.099 R)
• M22: 27,430,116 km (0.12 R)
• M23: 30,678,185 km (0.087 R)
• M24: 33,411,039 km (0.025 R)
• M25: 34,283,643 km (0.078 R)
• M26: 37,925,753 km (0.081 R)
• M27: 38,161,519 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 374.5

Radius: 5.6

Gravity: 11.94 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 6.67 AU - 7.71 AU

Year: 12647 Days

Day: 22.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 71,949,035 km

• M1: 70,909 km (0.107 R)
• M2: 458,218 km (0.066 R)
• M3: 641,176 km (0.118 R)
• M4: 931,097 km (0.039 R)
• M5: 1,342,790 km (0.055 R)
• M6: 2,204,923 km (0.098 R)
• M7: 4,102,722 km (0.081 R)
• M8: 4,553,610 km (0.106 R)
• M9: 5,999,024 km (0.102 R)
• M10: 6,467,864 km (0.11 R)
• M11: 7,276,440 km (0.06 R)
• M12: 7,560,377 km (0.082 R)
• M13: 10,612,174 km (0.099 R)
• M14: 11,843,963 km (0.098 R)
• M15: 12,067,462 km (0.111 R)
• M16: 14,270,889 km (0.066 R)
• M17: 14,780,419 km (0.085 R)
• M18: 14,974,448 km (0.092 R)
• M19: 15,500,434 km (0.12 R)
• M20: 17,152,443 km (0.111 R)
• M21: 17,728,245 km (0.107 R)
• M22: 18,020,859 km (0.104 R)
• M23: 19,610,635 km (0.101 R)
• M24: 20,559,834 km (0.052 R)
• M25: 21,045,728 km (0.114 R)
• M26: 21,291,517 km (0.105 R)
• M27: 21,872,555 km (0.087 R)
• M28: 25,397,081 km (0.112 R)
• M29: 28,675,817 km (0.1 R)
• M30: 30,625,676 km (0.094 R)
• M31: 32,226,074 km (0.06 R)
• M32: 34,901,333 km (0.103 R)
• M33: 36,528,359 km (0.101 R)
• M34: 38,205,202 km (0.115 R)
• M35: 40,562,266 km (0.11 R)
• M36: 44,209,761 km (0.074 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 423.8

Radius: 3.3

Gravity: 38.92 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 10.59 AU - 11.07 AU

Year: 23380 Days

Day: 19.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 71,949,035 km

• M1: 42,336 km (0.035 R)
• M2: 419,921 km (0.114 R)
• M3: 1,456,335 km (0.115 R)
• M4: 1,619,547 km (0.084 R)
• M5: 1,924,876 km (0.102 R)
• M6: 2,142,092 km (0.105 R)
• M7: 4,112,745 km (0.119 R)
• M8: 4,574,404 km (0.119 R)
• M9: 4,853,404 km (0.053 R)
• M10: 5,678,885 km (0.091 R)
• M11: 7,086,002 km (0.066 R)
• M12: 9,083,583 km (0.054 R)
• M13: 12,804,979 km (0.116 R)
• M14: 14,143,880 km (0.044 R)
• M15: 14,734,493 km (0.078 R)
• M16: 15,341,411 km (0.035 R)
• M17: 15,495,647 km (0.088 R)
• M18: 16,362,716 km (0.071 R)
• M19: 16,604,765 km (0.081 R)
• M20: 18,627,478 km (0.075 R)
• M21: 22,057,907 km (0.047 R)
• M22: 23,560,917 km (0.112 R)
• M23: 26,546,441 km (0.118 R)
• M24: 28,014,445 km (0.038 R)
• M25: 28,360,764 km (0.111 R)
• M26: 30,377,194 km (0.105 R)
• M27: 31,111,121 km (0.052 R)
• M28: 31,358,406 km (0.11 R)
• M29: 33,125,905 km (0.119 R)
• M30: 36,719,994 km (0.085 R)
• M31: 41,754,411 km (0.077 R)
• M32: 41,904,608 km (0.107 R)
• M33: 45,301,526 km (0.112 R)
• M34: 50,563,332 km (0.053 R)
• M35: 51,420,528 km (0.083 R)
• M36: 58,818,592 km (0.044 R)
• M37: 59,007,384 km (0.076 R)
• M38: 61,693,115 km (0.119 R)
• M39: 63,066,124 km (0.085 R)
• M40: 64,258,868 km (0.104 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: 465 - 12,306 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit