🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.45 AU - 0.73 AU

Year: 297 Days

Day: 43 Hours

Environment

Temp: -132 °C

Axial Tilt: 11.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 89,953,106 km

• M1: 77,940 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381

Radius: 13.8

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.56 AU - 0.82 AU

Year: 376 Days

Day: 14 Hours

Environment

Temp: -136 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 89,953,106 km

• M1: 172,187 km (0.119 R)
• M2: 755,918 km (0.082 R)
• M3: 1,194,988 km (0.111 R)
• M4: 2,151,068 km (0.046 R)
• M5: 3,749,072 km (0.077 R)
• M6: 4,335,496 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 811.6

Radius: 10

Gravity: 8.12 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.82 AU - 1.02 AU

Year: 579 Days

Day: 9.3 Hours

Environment

Temp: -148 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 89,953,106 km

• M1: 125,513 km (0.114 R)
• M2: 543,788 km (0.111 R)
• M3: 965,654 km (0.112 R)
• M4: 1,528,890 km (0.049 R)
• M5: 1,903,633 km (0.119 R)
• M6: 2,251,298 km (0.095 R)
• M7: 2,641,450 km (0.1 R)
• M8: 3,362,960 km (0.115 R)
• M9: 3,721,995 km (0.097 R)
• M10: 5,143,025 km (0.109 R)
• M11: 5,881,141 km (0.091 R)
• M12: 6,505,114 km (0.096 R)
• M13: 7,001,480 km (0.049 R)
• M14: 7,346,452 km (0.03 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.9

Radius: 9.9

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.21 AU - 1.65 AU

Year: 1122 Days

Day: 12.9 Hours

Environment

Temp: -178 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 89,953,106 km

• M1: 123,269 km (0.087 R)
• M2: 818,151 km (0.067 R)
• M3: 1,339,948 km (0.115 R)
• M4: 1,749,248 km (0.117 R)
• M5: 2,100,803 km (0.12 R)
• M6: 2,572,934 km (0.115 R)
• M7: 3,126,745 km (0.045 R)
• M8: 3,827,312 km (0.112 R)
• M9: 6,524,113 km (0.099 R)
• M10: 6,953,459 km (0.084 R)

Asteroid Belt

Center: 1.72 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 46.2

Radius: 11.6

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.5 AU - 2.5 AU

Year: 1855 Days

Day: 6.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 132.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 89,953,106 km

• M1: 144,512 km (0.077 R)
• M2: 523,593 km (0.097 R)
• M3: 1,062,594 km (0.109 R)
• M4: 1,739,973 km (0.107 R)
• M5: 2,155,556 km (0.081 R)
• M6: 2,517,882 km (0.108 R)
• M7: 2,910,427 km (0.101 R)
• M8: 3,652,731 km (0.086 R)
• M9: 4,186,796 km (0.063 R)
• M10: 4,896,189 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.7

Radius: 15

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.54 AU - 2.48 AU

Year: 1869 Days

Day: 13.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 89,953,106 km

• M1: 186,549 km (0.106 R)
• M2: 910,004 km (0.07 R)
• M3: 2,014,784 km (0.07 R)
• M4: 2,738,090 km (0.026 R)
• M5: 3,337,080 km (0.114 R)
• M6: 4,323,229 km (0.119 R)
• M7: 5,064,337 km (0.112 R)
• M8: 7,329,847 km (0.1 R)
• M9: 9,222,858 km (0.115 R)
• M10: 10,739,482 km (0.044 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174.8

Radius: 8.9

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 2.42 AU - 2.74 AU

Year: 2719 Days

Day: 9.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 89,953,106 km

• M1: 111,750 km (0.045 R)
• M2: 435,330 km (0.047 R)
• M3: 740,958 km (0.066 R)
• M4: 1,166,265 km (0.109 R)
• M5: 1,654,104 km (0.112 R)
• M6: 2,004,312 km (0.118 R)
• M7: 2,379,803 km (0.049 R)
• M8: 2,883,798 km (0.094 R)
• M9: 3,520,487 km (0.101 R)
• M10: 4,122,917 km (0.062 R)
• M11: 4,910,700 km (0.119 R)
• M12: 5,236,075 km (0.071 R)
• M13: 6,323,053 km (0.094 R)
• M14: 6,708,717 km (0.117 R)
• M15: 7,109,938 km (0.111 R)
• M16: 7,933,175 km (0.103 R)
• M17: 9,610,616 km (0.031 R)
• M18: 9,895,450 km (0.115 R)
• M19: 10,482,472 km (0.063 R)
• M20: 11,476,700 km (0.096 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 841.4

Radius: 11

Gravity: 6.95 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 3.23 AU - 3.89 AU

Year: 4406 Days

Day: 11.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 89,953,106 km

• M1: 137,181 km (0.076 R)
• M2: 633,248 km (0.054 R)
• M3: 1,161,927 km (0.118 R)
• M4: 1,697,188 km (0.106 R)
• M5: 2,392,220 km (0.103 R)
• M6: 2,979,391 km (0.117 R)
• M7: 3,348,150 km (0.062 R)
• M8: 4,131,444 km (0.08 R)
• M9: 5,360,840 km (0.083 R)
• M10: 5,909,864 km (0.057 R)
• M11: 6,985,772 km (0.075 R)
• M12: 7,677,213 km (0.067 R)
• M13: 10,548,894 km (0.096 R)
• M14: 11,694,664 km (0.086 R)
• M15: 12,619,478 km (0.082 R)
• M16: 14,124,133 km (0.111 R)
• M17: 14,614,665 km (0.098 R)
• M18: 15,629,537 km (0.086 R)
• M19: 17,486,794 km (0.067 R)
• M20: 18,372,115 km (0.057 R)
• M21: 21,136,683 km (0.12 R)
• M22: 21,851,013 km (0.115 R)
• M23: 24,478,101 km (0.1 R)
• M24: 25,585,425 km (0.117 R)
• M25: 26,396,694 km (0.073 R)
• M26: 27,815,181 km (0.065 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 916.6

Radius: 6.4

Gravity: 22.38 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 9.79 AU - 11.15 AU

Year: 22224 Days

Day: 21.9 Hours

Environment

Temp: -239 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 89,953,106 km

• M1: 87,216 km (0.08 R)
• M2: 305,628 km (0.091 R)
• M3: 569,519 km (0.115 R)
• M4: 809,474 km (0.103 R)
• M5: 1,622,987 km (0.1 R)
• M6: 1,928,317 km (0.041 R)
• M7: 2,204,175 km (0.105 R)
• M8: 3,458,404 km (0.106 R)
• M9: 4,342,976 km (0.119 R)
• M10: 4,781,148 km (0.113 R)
• M11: 6,456,794 km (0.09 R)
• M12: 8,884,767 km (0.066 R)
• M13: 9,233,031 km (0.112 R)
• M14: 9,956,935 km (0.106 R)
• M15: 11,179,449 km (0.078 R)
• M16: 12,001,340 km (0.09 R)
• M17: 12,862,874 km (0.049 R)
• M18: 17,524,493 km (0.033 R)
• M19: 19,883,053 km (0.101 R)
• M20: 23,309,592 km (0.048 R)
• M21: 23,861,010 km (0.077 R)
• M22: 32,930,680 km (0.107 R)
• M23: 43,721,025 km (0.096 R)
• M24: 44,728,118 km (0.09 R)
• M25: 46,788,529 km (0.098 R)
• M26: 49,632,983 km (0.087 R)
• M27: 55,273,122 km (0.114 R)
• M28: 59,057,799 km (0.085 R)
• M29: 61,325,852 km (0.094 R)
• M30: 67,582,633 km (0.057 R)
• M31: 80,842,839 km (0.096 R)
• M32: 85,447,013 km (0.108 R)
• M33: 87,019,735 km (0.061 R)
• M34: 89,146,718 km (0.059 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 317 - 16,495 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit