🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 55.3

Radius: 13.4

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.75 AU - 1.07 AU

Year: 561 Days

Day: 11.6 Hours

Environment

Temp: -152 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 81,172,803 km

• M1: 187,895 km (0.059 R)
• M2: 623,225 km (0.068 R)
• M3: 1,048,531 km (0.111 R)
• M4: 1,656,946 km (0.042 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 587.3

Radius: 9.7

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.13 AU - 1.59 AU

Year: 1024 Days

Day: 5.9 Hours

Environment

Temp: -164 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 81,172,803 km

• M1: 120,576 km (0.091 R)
• M2: 539,151 km (0.112 R)
• M3: 948,002 km (0.047 R)
• M4: 1,982,770 km (0.098 R)
• M5: 2,501,576 km (0.079 R)
• M6: 3,003,327 km (0.072 R)
• M7: 3,674,722 km (0.086 R)
• M8: 4,324,725 km (0.089 R)
• M9: 5,771,187 km (0.09 R)
• M10: 6,082,649 km (0.073 R)
• M11: 6,449,314 km (0.115 R)
• M12: 7,038,729 km (0.069 R)
• M13: 8,221,001 km (0.074 R)
• M14: 8,805,031 km (0.081 R)
• M15: 9,530,731 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 556.8

Radius: 12.3

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.48 AU - 1.74 AU

Year: 1319 Days

Day: 14.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,172,803 km

• M1: 153,039 km (0.087 R)
• M2: 626,815 km (0.105 R)
• M3: 1,024,895 km (0.062 R)
• M4: 1,482,216 km (0.079 R)
• M5: 1,884,933 km (0.075 R)
• M6: 3,456,459 km (0.102 R)
• M7: 3,910,638 km (0.058 R)
• M8: 4,788,179 km (0.111 R)
• M9: 5,395,397 km (0.069 R)
• M10: 6,299,716 km (0.117 R)
• M11: 7,607,650 km (0.05 R)
• M12: 8,189,586 km (0.034 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 44.4

Radius: 12.6

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 2.22 AU - 2.5 AU

Year: 2341 Days

Day: 5.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,172,803 km

• M1: 156,779 km (0.08 R)
• M2: 635,641 km (0.106 R)
• M3: 1,271,133 km (0.034 R)
• M4: 1,946,268 km (0.105 R)
• M5: 2,590,437 km (0.082 R)
• M6: 4,016,703 km (0.054 R)
• M7: 4,708,743 km (0.102 R)
• M8: 6,830,938 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.8

Radius: 14.8

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.69 AU - 3.69 AU

Year: 3679 Days

Day: 10.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 81,172,803 km

• M1: 184,005 km (0.118 R)
• M2: 658,530 km (0.031 R)
• M3: 1,437,486 km (0.072 R)
• M4: 1,943,576 km (0.101 R)
• M5: 2,601,058 km (0.091 R)
• M6: 3,166,987 km (0.085 R)
• M7: 3,855,885 km (0.06 R)
• M8: 4,953,335 km (0.084 R)
• M9: 5,940,831 km (0.089 R)
• M10: 6,749,706 km (0.039 R)
• M11: 7,533,150 km (0.114 R)
• M12: 9,357,048 km (0.089 R)
• M13: 14,922,088 km (0.118 R)
• M14: 16,253,061 km (0.091 R)
• M15: 16,975,768 km (0.084 R)
• M16: 17,488,589 km (0.05 R)
• M17: 20,337,083 km (0.114 R)
• M18: 21,046,027 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385.6

Radius: 8.1

Gravity: 5.88 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 2.84 AU - 4.12 AU

Year: 4192 Days

Day: 8.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 81,172,803 km

• M1: 100,829 km (0.105 R)
• M2: 398,230 km (0.111 R)
• M3: 733,030 km (0.105 R)
• M4: 1,264,401 km (0.053 R)
• M5: 1,555,818 km (0.045 R)
• M6: 1,980,377 km (0.092 R)
• M7: 2,875,570 km (0.083 R)
• M8: 3,221,291 km (0.114 R)
• M9: 4,017,600 km (0.092 R)
• M10: 4,383,816 km (0.06 R)
• M11: 5,410,805 km (0.054 R)
• M12: 5,939,634 km (0.059 R)
• M13: 6,502,571 km (0.105 R)
• M14: 6,767,209 km (0.111 R)
• M15: 9,188,301 km (0.049 R)
• M16: 10,096,360 km (0.088 R)
• M17: 10,531,989 km (0.059 R)
• M18: 11,272,050 km (0.063 R)
• M19: 12,626,958 km (0.094 R)
• M20: 13,132,748 km (0.078 R)
• M21: 15,709,123 km (0.106 R)
• M22: 17,171,592 km (0.026 R)
• M23: 18,487,155 km (0.063 R)
• M24: 20,177,761 km (0.056 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 718.7

Radius: 10.5

Gravity: 6.52 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 4.26 AU - 5.76 AU

Year: 7241 Days

Day: 10.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 81,172,803 km

• M1: 130,599 km (0.104 R)
• M2: 756,965 km (0.064 R)
• M3: 1,896,602 km (0.091 R)
• M4: 2,261,471 km (0.084 R)
• M5: 3,009,909 km (0.11 R)
• M6: 3,352,488 km (0.11 R)
• M7: 3,745,183 km (0.102 R)
• M8: 4,820,791 km (0.086 R)
• M9: 6,362,996 km (0.084 R)
• M10: 7,572,046 km (0.119 R)
• M11: 7,967,134 km (0.083 R)
• M12: 9,103,030 km (0.051 R)
• M13: 9,871,664 km (0.092 R)
• M14: 11,180,646 km (0.026 R)
• M15: 12,330,156 km (0.097 R)
• M16: 12,989,434 km (0.055 R)
• M17: 14,140,290 km (0.101 R)
• M18: 14,740,626 km (0.107 R)
• M19: 16,643,960 km (0.107 R)
• M20: 17,586,127 km (0.046 R)
• M21: 19,356,468 km (0.075 R)
• M22: 20,549,960 km (0.066 R)
• M23: 21,009,974 km (0.109 R)
• M24: 27,539,622 km (0.075 R)
• M25: 29,822,485 km (0.108 R)
• M26: 33,796,852 km (0.046 R)
• M27: 38,457,274 km (0.09 R)
• M28: 38,922,374 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 184.3

Radius: 5.4

Gravity: 6.32 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 6 AU - 7.14 AU

Year: 10873 Days

Day: 24.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 81,172,803 km

• M1: 67,319 km (0.092 R)
• M2: 439,070 km (0.084 R)
• M3: 975,528 km (0.09 R)
• M4: 1,503,459 km (0.064 R)
• M5: 1,901,688 km (0.118 R)
• M6: 2,172,759 km (0.117 R)
• M7: 3,371,487 km (0.111 R)
• M8: 4,347,913 km (0.118 R)
• M9: 4,579,490 km (0.079 R)
• M10: 4,956,028 km (0.034 R)
• M11: 5,295,017 km (0.082 R)
• M12: 5,589,276 km (0.108 R)
• M13: 5,925,422 km (0.1 R)
• M14: 6,146,229 km (0.075 R)
• M15: 7,515,348 km (0.071 R)
• M16: 8,993,226 km (0.112 R)
• M17: 9,540,455 km (0.104 R)
• M18: 9,888,120 km (0.111 R)
• M19: 10,562,507 km (0.107 R)
• M20: 11,076,376 km (0.116 R)
• M21: 11,557,782 km (0.119 R)
• M22: 12,613,943 km (0.07 R)
• M23: 13,245,545 km (0.043 R)
• M24: 13,514,821 km (0.085 R)
• M25: 14,008,793 km (0.083 R)
• M26: 16,412,382 km (0.026 R)
• M27: 18,335,912 km (0.103 R)
• M28: 19,768,611 km (0.062 R)
• M29: 21,054,704 km (0.114 R)
• M30: 22,701,028 km (0.035 R)
• M31: 26,247,545 km (0.065 R)
• M32: 27,623,696 km (0.042 R)
• M33: 31,654,760 km (0.102 R)
• M34: 32,622,658 km (0.058 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 685.4

Radius: 7.2

Gravity: 13.22 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 9.04 AU - 12 AU

Year: 22031 Days

Day: 24.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 115.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 81,172,803 km

• M1: 90,208 km (0.056 R)
• M2: 487,839 km (0.096 R)
• M3: 808,726 km (0.113 R)
• M4: 1,418,188 km (0.077 R)
• M5: 2,006,407 km (0.115 R)
• M6: 3,536,344 km (0.026 R)
• M7: 6,996,543 km (0.073 R)
• M8: 8,085,316 km (0.071 R)
• M9: 9,112,904 km (0.061 R)
• M10: 11,359,415 km (0.088 R)
• M11: 12,999,606 km (0.073 R)
• M12: 16,405,950 km (0.061 R)
• M13: 19,134,764 km (0.066 R)
• M14: 19,413,914 km (0.09 R)
• M15: 22,357,103 km (0.109 R)
• M16: 27,192,106 km (0.078 R)
• M17: 29,356,039 km (0.102 R)
• M18: 30,733,536 km (0.06 R)
• M19: 33,079,829 km (0.093 R)
• M20: 41,138,816 km (0.086 R)
• M21: 43,661,036 km (0.115 R)
• M22: 48,147,925 km (0.1 R)
• M23: 49,709,278 km (0.102 R)
• M24: 52,750,004 km (0.09 R)
• M25: 53,115,771 km (0.082 R)
• M26: 53,483,184 km (0.082 R)
• M27: 58,414,677 km (0.058 R)
• M28: 60,589,232 km (0.068 R)
• M29: 62,000,838 km (0.115 R)
• M30: 66,367,001 km (0.112 R)
• M31: 71,379,427 km (0.12 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 310 - 11,347 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit