🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 92.7

Radius: 14.3

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.47 AU - 0.71 AU

Year: 302 Days

Day: 8.5 Hours

Environment

Temp: -140 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 52,145,557 km

• M1: 177,872 km (0.109 R)
• M2: 657,483 km (0.066 R)
• M3: 1,121,386 km (0.059 R)
• M4: 2,257,731 km (0.063 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175

Radius: 12.7

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.57 AU - 0.65 AU

Year: 318 Days

Day: 7.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 52,145,557 km

• M1: 157,975 km (0.089 R)
• M2: 618,587 km (0.114 R)
• M3: 1,265,000 km (0.088 R)
• M4: 2,043,357 km (0.1 R)
• M5: 2,507,560 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.3

Radius: 10.5

Gravity: 8.8 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.89 AU - 0.93 AU

Year: 579 Days

Day: 6.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,145,557 km

• M1: 130,599 km (0.109 R)
• M2: 515,963 km (0.042 R)
• M3: 985,252 km (0.048 R)
• M4: 1,434,793 km (0.033 R)
• M5: 1,842,447 km (0.116 R)
• M6: 2,227,662 km (0.09 R)
• M7: 2,578,768 km (0.075 R)
• M8: 3,100,865 km (0.107 R)
• M9: 3,637,023 km (0.036 R)
• M10: 4,052,756 km (0.057 R)
• M11: 4,662,068 km (0.09 R)
• M12: 5,349,321 km (0.088 R)
• M13: 5,717,481 km (0.081 R)
• M14: 6,201,580 km (0.048 R)
• M15: 6,776,185 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 117.8

Radius: 14.5

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 1.01 AU - 1.23 AU

Year: 790 Days

Day: 12.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 52,145,557 km

• M1: 180,415 km (0.044 R)
• M2: 958,623 km (0.042 R)
• M3: 1,609,075 km (0.061 R)
• M4: 2,693,510 km (0.114 R)
• M5: 4,782,794 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 650.4

Radius: 14.3

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 1.03 AU - 1.37 AU

Year: 877 Days

Day: 13.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,145,557 km

• M1: 177,872 km (0.059 R)
• M2: 654,939 km (0.106 R)
• M3: 1,257,221 km (0.058 R)
• M4: 1,711,549 km (0.042 R)
• M5: 2,319,665 km (0.106 R)
• M6: 2,994,800 km (0.078 R)
• M7: 3,441,649 km (0.107 R)
• M8: 4,811,816 km (0.043 R)
• M9: 6,434,653 km (0.104 R)
• M10: 8,500,450 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.6

Radius: 13

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.25 AU - 1.73 AU

Year: 1213 Days

Day: 5.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 52,145,557 km

• M1: 161,715 km (0.1 R)
• M2: 946,955 km (0.073 R)
• M3: 1,616,255 km (0.109 R)
• M4: 2,847,296 km (0.069 R)
• M5: 3,423,697 km (0.085 R)
• M6: 4,245,288 km (0.084 R)
• M7: 4,949,146 km (0.049 R)
• M8: 5,980,923 km (0.1 R)
• M9: 6,548,348 km (0.081 R)
• M10: 7,151,377 km (0.059 R)
• M11: 7,862,116 km (0.08 R)
• M12: 8,320,634 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 313.3

Radius: 8.7

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.27 AU - 1.93 AU

Year: 1350 Days

Day: 12.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 52,145,557 km

• M1: 108,159 km (0.113 R)
• M2: 447,298 km (0.043 R)
• M3: 785,090 km (0.045 R)
• M4: 1,459,327 km (0.101 R)
• M5: 1,841,251 km (0.117 R)
• M6: 2,163,036 km (0.086 R)
• M7: 3,050,151 km (0.115 R)
• M8: 3,432,374 km (0.052 R)
• M9: 3,754,757 km (0.117 R)
• M10: 4,563,633 km (0.077 R)
• M11: 4,936,281 km (0.076 R)
• M12: 5,367,422 km (0.119 R)
• M13: 6,156,102 km (0.084 R)
• M14: 6,611,777 km (0.097 R)
• M15: 7,325,209 km (0.06 R)
• M16: 7,688,433 km (0.105 R)
• M17: 8,242,843 km (0.097 R)
• M18: 8,689,392 km (0.055 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289

Radius: 13.9

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.59 AU - 1.67 AU

Year: 1388 Days

Day: 10.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 52,145,557 km

• M1: 190,438 km (0.091 R)
• M2: 859,141 km (0.112 R)
• M3: 1,391,709 km (0.106 R)
• M4: 2,289,296 km (0.092 R)
• M5: 2,783,717 km (0.061 R)
• M6: 5,314,764 km (0.077 R)
• M7: 5,862,441 km (0.114 R)
• M8: 7,094,679 km (0.111 R)
• M9: 8,415,329 km (0.117 R)

Planet 9 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 883.9

Radius: 11.2

Gravity: 7.05 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.66 AU - 1.82 AU

Year: 1531 Days

Day: 14.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,145,557 km

• M1: 139,276 km (0.079 R)
• M2: 575,653 km (0.078 R)
• M3: 925,562 km (0.102 R)
• M4: 1,315,414 km (0.111 R)
• M5: 3,698,957 km (0.119 R)
• M6: 4,729,237 km (0.08 R)
• M7: 5,169,654 km (0.104 R)
• M8: 5,964,916 km (0.061 R)
• M9: 6,480,131 km (0.116 R)
• M10: 7,628,145 km (0.064 R)
• M11: 8,627,908 km (0.099 R)
• M12: 9,320,097 km (0.108 R)
• M13: 10,014,979 km (0.079 R)
• M14: 11,846,655 km (0.111 R)
• M15: 12,622,620 km (0.066 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 194.8

Radius: 7.1

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 7.68 AU - 12.44 AU

Year: 21278 Days

Day: 17.9 Hours

Environment

Temp: -238 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 52,145,557 km

• M1: 89,160 km (0.052 R)
• M2: 353,201 km (0.069 R)
• M3: 681,269 km (0.086 R)
• M4: 2,027,949 km (0.098 R)
• M5: 2,397,605 km (0.042 R)
• M6: 2,746,617 km (0.05 R)
• M7: 5,845,387 km (0.109 R)
• M8: 8,194,672 km (0.055 R)
• M9: 12,138,222 km (0.072 R)
• M10: 19,518,633 km (0.113 R)
• M11: 20,590,202 km (0.104 R)
• M12: 29,639,377 km (0.117 R)
• M13: 29,961,611 km (0.091 R)
• M14: 30,613,409 km (0.064 R)
• M15: 31,497,084 km (0.111 R)
• M16: 34,368,166 km (0.087 R)
• M17: 37,159,363 km (0.104 R)
• M18: 37,911,691 km (0.089 R)
• M19: 45,287,015 km (0.073 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 398 - 15,937 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit