🌌 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: 493.4

Radius: 12.7

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.67 AU - 0.91 AU

Year: 476 Days

Day: 14.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 73,999,844 km

• M1: 158,125 km (0.086 R)
• M2: 657,931 km (0.09 R)
• M3: 1,267,842 km (0.084 R)
• M4: 1,757,177 km (0.031 R)
• M5: 2,301,414 km (0.084 R)
• M6: 2,782,072 km (0.101 R)
• M7: 3,205,733 km (0.08 R)
• M8: 3,834,044 km (0.108 R)
• M9: 4,892,449 km (0.045 R)
• M10: 5,354,257 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.2

Radius: 13

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.91 AU - 1.27 AU

Year: 772 Days

Day: 9.8 Hours

Environment

Temp: -174 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,999,844 km

• M1: 161,715 km (0.091 R)
• M2: 606,320 km (0.102 R)
• M3: 1,059,303 km (0.068 R)
• M4: 1,619,098 km (0.082 R)
• M5: 2,312,633 km (0.033 R)
• M6: 3,417,713 km (0.054 R)
• M7: 4,022,537 km (0.034 R)
• M8: 4,615,543 km (0.068 R)
• M9: 5,284,246 km (0.109 R)
• M10: 5,765,352 km (0.09 R)
• M11: 6,688,521 km (0.114 R)
• M12: 7,119,811 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.4

Radius: 8.4

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.77 AU - 2.41 AU

Year: 2049 Days

Day: 5.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 73,999,844 km

• M1: 106,813 km (0.026 R)
• M2: 596,447 km (0.054 R)
• M3: 1,834,818 km (0.099 R)
• M4: 2,269,848 km (0.102 R)
• M5: 2,825,455 km (0.096 R)
• M6: 3,323,167 km (0.107 R)
• M7: 4,276,704 km (0.038 R)
• M8: 4,748,087 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.2

Radius: 8.7

Gravity: 12.77 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.8 AU - 2.48 AU

Year: 2123 Days

Day: 7.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 73,999,844 km

• M1: 109,206 km (0.083 R)
• M2: 381,175 km (0.112 R)
• M3: 686,056 km (0.06 R)
• M4: 1,210,845 km (0.106 R)
• M5: 1,548,039 km (0.102 R)
• M6: 2,225,268 km (0.109 R)
• M7: 2,587,445 km (0.111 R)
• M8: 3,631,339 km (0.095 R)
• M9: 4,775,014 km (0.086 R)
• M10: 5,778,816 km (0.117 R)
• M11: 6,249,750 km (0.095 R)
• M12: 7,297,983 km (0.106 R)
• M13: 9,595,058 km (0.053 R)
• M14: 10,106,383 km (0.066 R)
• M15: 10,635,960 km (0.094 R)
• M16: 11,874,032 km (0.108 R)
• M17: 12,678,868 km (0.113 R)
• M18: 13,072,610 km (0.086 R)
• M19: 14,634,113 km (0.113 R)
• M20: 15,858,870 km (0.107 R)
• M21: 18,961,530 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 538

Radius: 8.8

Gravity: 6.95 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 2.16 AU - 2.82 AU

Year: 2665 Days

Day: 11.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 73,999,844 km

• M1: 110,104 km (0.094 R)
• M2: 390,450 km (0.072 R)
• M3: 944,711 km (0.086 R)
• M4: 1,516,773 km (0.069 R)
• M5: 1,916,349 km (0.112 R)
• M6: 2,398,802 km (0.099 R)
• M7: 3,056,434 km (0.119 R)
• M8: 4,511,423 km (0.112 R)
• M9: 5,511,634 km (0.039 R)
• M10: 5,986,458 km (0.067 R)
• M11: 6,326,943 km (0.111 R)
• M12: 6,847,843 km (0.086 R)
• M13: 7,162,447 km (0.087 R)
• M14: 7,944,245 km (0.114 R)
• M15: 10,220,676 km (0.061 R)
• M16: 10,556,374 km (0.108 R)
• M17: 11,329,047 km (0.073 R)
• M18: 12,056,092 km (0.118 R)
• M19: 12,943,357 km (0.097 R)
• M20: 13,292,519 km (0.109 R)
• M21: 16,115,431 km (0.102 R)
• M22: 17,934,690 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 877.4

Radius: 10.9

Gravity: 7.38 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 2.57 AU - 3.87 AU

Year: 3919 Days

Day: 7.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 73,999,844 km

• M1: 136,433 km (0.098 R)
• M2: 1,245,253 km (0.1 R)
• M3: 2,835,777 km (0.117 R)
• M4: 3,459,600 km (0.11 R)
• M5: 5,382,083 km (0.103 R)
• M6: 8,220,553 km (0.093 R)
• M7: 9,610,317 km (0.049 R)
• M8: 10,318,513 km (0.075 R)
• M9: 10,927,676 km (0.072 R)
• M10: 12,313,550 km (0.113 R)
• M11: 12,653,138 km (0.111 R)
• M12: 12,999,008 km (0.086 R)
• M13: 18,028,339 km (0.1 R)
• M14: 21,179,169 km (0.032 R)
• M15: 21,667,456 km (0.065 R)
• M16: 24,679,759 km (0.035 R)
• M17: 25,220,555 km (0.074 R)
• M18: 25,848,418 km (0.082 R)
• M19: 26,809,434 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 722.8

Radius: 10.1

Gravity: 7.09 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 3.98 AU - 6 AU

Year: 7560 Days

Day: 14.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 73,999,844 km

• M1: 126,410 km (0.088 R)
• M2: 561,441 km (0.118 R)
• M3: 965,205 km (0.12 R)
• M4: 2,220,780 km (0.033 R)
• M5: 3,032,050 km (0.04 R)
• M6: 4,425,105 km (0.097 R)
• M7: 6,068,438 km (0.099 R)
• M8: 8,125,708 km (0.111 R)
• M9: 9,887,970 km (0.082 R)
• M10: 14,032,879 km (0.034 R)
• M11: 15,574,485 km (0.099 R)
• M12: 16,819,438 km (0.112 R)
• M13: 18,991,300 km (0.085 R)
• M14: 20,258,544 km (0.055 R)
• M15: 22,878,002 km (0.1 R)
• M16: 24,484,534 km (0.115 R)
• M17: 25,359,681 km (0.115 R)
• M18: 26,987,157 km (0.102 R)
• M19: 28,875,979 km (0.113 R)
• M20: 32,182,541 km (0.05 R)
• M21: 34,631,009 km (0.057 R)
• M22: 37,315,693 km (0.06 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 653.3

Radius: 6.5

Gravity: 15.46 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 4.83 AU - 7.15 AU

Year: 9943 Days

Day: 24.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 73,999,844 km

• M1: 88,263 km (0.073 R)
• M2: 345,421 km (0.072 R)
• M3: 560,244 km (0.105 R)
• M4: 1,078,152 km (0.093 R)
• M5: 1,492,239 km (0.079 R)
• M6: 1,813,425 km (0.097 R)
• M7: 2,233,795 km (0.06 R)
• M8: 2,696,502 km (0.068 R)
• M9: 3,410,383 km (0.102 R)
• M10: 3,969,879 km (0.03 R)
• M11: 4,413,885 km (0.084 R)
• M12: 7,428,432 km (0.063 R)
• M13: 10,783,763 km (0.102 R)
• M14: 11,536,539 km (0.098 R)
• M15: 12,496,957 km (0.115 R)
• M16: 14,067,436 km (0.099 R)
• M17: 14,383,835 km (0.104 R)
• M18: 16,037,640 km (0.111 R)
• M19: 16,452,774 km (0.118 R)
• M20: 21,922,521 km (0.111 R)
• M21: 23,657,557 km (0.092 R)
• M22: 25,202,604 km (0.075 R)
• M23: 25,763,596 km (0.079 R)
• M24: 28,291,201 km (0.048 R)
• M25: 29,203,300 km (0.093 R)
• M26: 34,287,383 km (0.112 R)
• M27: 35,323,797 km (0.08 R)
• M28: 36,738,095 km (0.043 R)
• M29: 37,459,157 km (0.12 R)
• M30: 37,945,201 km (0.11 R)
• M31: 38,312,314 km (0.038 R)
• M32: 38,929,704 km (0.116 R)
• M33: 39,805,001 km (0.088 R)
• M34: 41,078,079 km (0.072 R)
• M35: 41,724,641 km (0.089 R)
• M36: 43,973,995 km (0.11 R)
• M37: 44,379,256 km (0.1 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 944.5

Radius: 7

Gravity: 19.28 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 7.56 AU - 9.12 AU

Year: 16336 Days

Day: 15.6 Hours

Environment

Temp: -243 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 73,999,844 km

• M1: 87,515 km (0.081 R)
• M2: 389,852 km (0.113 R)
• M3: 618,438 km (0.098 R)
• M4: 929,003 km (0.1 R)
• M5: 1,327,083 km (0.05 R)
• M6: 1,624,184 km (0.101 R)
• M7: 2,816,330 km (0.098 R)
• M8: 3,506,873 km (0.096 R)
• M9: 3,891,938 km (0.079 R)
• M10: 4,471,480 km (0.115 R)
• M11: 5,369,816 km (0.084 R)
• M12: 6,087,437 km (0.101 R)
• M13: 8,363,867 km (0.115 R)
• M14: 9,381,731 km (0.085 R)
• M15: 10,782,416 km (0.093 R)
• M16: 11,532,799 km (0.106 R)
• M17: 16,373,637 km (0.119 R)
• M18: 17,029,474 km (0.07 R)
• M19: 19,101,853 km (0.09 R)
• M20: 19,920,452 km (0.089 R)
• M21: 20,573,298 km (0.112 R)
• M22: 21,240,205 km (0.093 R)
• M23: 23,021,317 km (0.092 R)
• M24: 27,104,142 km (0.052 R)
• M25: 27,560,117 km (0.054 R)
• M26: 28,370,339 km (0.097 R)
• M27: 30,281,751 km (0.094 R)
• M28: 37,085,312 km (0.102 R)
• M29: 37,365,659 km (0.071 R)
• M30: 37,647,351 km (0.034 R)
• M31: 40,840,219 km (0.083 R)
• M32: 42,349,362 km (0.076 R)
• M33: 51,146,465 km (0.119 R)
• M34: 52,017,872 km (0.113 R)
• M35: 61,477,843 km (0.09 R)
• M36: 65,684,984 km (0.096 R)
• M37: 66,714,218 km (0.04 R)
• M38: 69,228,060 km (0.082 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 229 - 10,362 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit