🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.5

Radius: 10.3

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.53 AU - 0.73 AU

Year: 339 Days

Day: 13.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,719,098 km

• M1: 128,654 km (0.092 R)
• M2: 474,674 km (0.114 R)
• M3: 814,860 km (0.107 R)
• M4: 1,421,479 km (0.074 R)
• M5: 1,885,831 km (0.043 R)
• M6: 2,217,788 km (0.083 R)
• M7: 2,690,368 km (0.083 R)
• M8: 3,171,325 km (0.098 R)
• M9: 3,655,723 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.4

Radius: 13.2

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.67 AU - 0.85 AU

Year: 449 Days

Day: 5.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 57,719,098 km

• M1: 164,558 km (0.107 R)
• M2: 595,998 km (0.117 R)
• M3: 1,327,831 km (0.093 R)
• M4: 1,824,496 km (0.109 R)
• M5: 2,348,387 km (0.072 R)
• M6: 3,386,297 km (0.11 R)
• M7: 4,056,645 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.4

Radius: 11.7

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.83 AU - 1.13 AU

Year: 658 Days

Day: 6.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,719,098 km

• M1: 147,354 km (0.078 R)
• M2: 643,271 km (0.052 R)
• M3: 1,307,785 km (0.03 R)
• M4: 1,870,721 km (0.094 R)
• M5: 2,350,183 km (0.114 R)
• M6: 3,048,655 km (0.1 R)
• M7: 3,656,621 km (0.104 R)
• M8: 4,482,999 km (0.101 R)
• M9: 4,873,599 km (0.077 R)
• M10: 5,413,947 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 946

Radius: 10.5

Gravity: 8.58 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.92 AU - 1.1 AU

Year: 688 Days

Day: 5.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 57,719,098 km

• M1: 130,599 km (0.085 R)
• M2: 459,864 km (0.105 R)
• M3: 799,301 km (0.119 R)
• M4: 1,151,156 km (0.089 R)
• M5: 1,608,626 km (0.116 R)
• M6: 2,216,143 km (0.061 R)
• M7: 2,788,056 km (0.102 R)
• M8: 3,624,607 km (0.109 R)
• M9: 4,164,356 km (0.12 R)
• M10: 4,896,189 km (0.087 R)
• M11: 5,969,105 km (0.09 R)
• M12: 6,486,414 km (0.109 R)
• M13: 6,855,023 km (0.12 R)
• M14: 7,422,747 km (0.118 R)
• M15: 7,754,106 km (0.054 R)
• M16: 8,095,339 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 453.5

Radius: 10.3

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.43 AU - 1.59 AU

Year: 1259 Days

Day: 11.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,719,098 km

• M1: 128,205 km (0.06 R)
• M2: 781,499 km (0.093 R)
• M3: 1,384,977 km (0.068 R)
• M4: 1,987,408 km (0.112 R)
• M5: 2,377,709 km (0.104 R)
• M6: 2,819,321 km (0.071 R)
• M7: 3,301,176 km (0.057 R)
• M8: 4,623,621 km (0.051 R)
• M9: 5,296,064 km (0.096 R)
• M10: 5,635,651 km (0.1 R)
• M11: 9,041,396 km (0.089 R)
• M12: 10,429,365 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.8

Radius: 11.5

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.46 AU - 2.2 AU

Year: 1679 Days

Day: 5.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,719,098 km

• M1: 143,165 km (0.1 R)
• M2: 505,940 km (0.095 R)
• M3: 904,768 km (0.092 R)
• M4: 2,202,081 km (0.073 R)
• M5: 2,600,460 km (0.113 R)
• M6: 3,216,653 km (0.105 R)
• M7: 3,765,079 km (0.095 R)
• M8: 4,592,655 km (0.085 R)
• M9: 5,129,113 km (0.103 R)
• M10: 5,622,038 km (0.098 R)
• M11: 6,168,818 km (0.111 R)
• M12: 7,142,251 km (0.049 R)
• M13: 8,464,696 km (0.059 R)
• M14: 9,392,802 km (0.096 R)
• M15: 9,850,571 km (0.06 R)
• M16: 10,355,314 km (0.057 R)
• M17: 10,778,078 km (0.068 R)
• M18: 11,178,551 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470.7

Radius: 13.6

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.7 AU - 2.72 AU

Year: 2228 Days

Day: 7.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,719,098 km

• M1: 169,195 km (0.117 R)
• M2: 658,979 km (0.03 R)
• M3: 1,153,250 km (0.051 R)
• M4: 1,838,109 km (0.095 R)
• M5: 2,318,917 km (0.053 R)
• M6: 2,797,929 km (0.049 R)
• M7: 3,311,349 km (0.078 R)
• M8: 4,106,462 km (0.062 R)
• M9: 4,650,699 km (0.071 R)
• M10: 5,133,451 km (0.113 R)
• M11: 6,053,478 km (0.096 R)
• M12: 6,919,500 km (0.084 R)
• M13: 7,551,102 km (0.096 R)
• M14: 8,311,209 km (0.094 R)
• M15: 9,316,058 km (0.081 R)
• M16: 9,848,177 km (0.029 R)
• M17: 10,612,772 km (0.119 R)
• M18: 12,618,132 km (0.069 R)
• M19: 14,598,059 km (0.115 R)
• M20: 15,454,657 km (0.116 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.9

Radius: 12.7

Gravity: 4.98 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 4.28 AU - 4.98 AU

Year: 6757 Days

Day: 14.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 57,719,098 km

• M1: 159,771 km (0.103 R)
• M2: 587,770 km (0.097 R)
• M3: 1,008,738 km (0.073 R)
• M4: 1,628,223 km (0.11 R)
• M5: 2,185,475 km (0.066 R)
• M6: 3,282,776 km (0.079 R)
• M7: 3,857,231 km (0.096 R)
• M8: 6,466,667 km (0.051 R)
• M9: 7,449,675 km (0.058 R)
• M10: 8,037,445 km (0.084 R)
• M11: 8,571,659 km (0.113 R)
• M12: 10,558,169 km (0.1 R)
• M13: 11,049,448 km (0.078 R)
• M14: 14,030,036 km (0.096 R)
• M15: 15,927,536 km (0.026 R)
• M16: 17,578,049 km (0.101 R)
• M17: 18,480,124 km (0.093 R)
• M18: 20,376,726 km (0.106 R)
• M19: 20,832,102 km (0.093 R)
• M20: 22,080,047 km (0.101 R)
• M21: 22,560,705 km (0.045 R)
• M22: 29,268,973 km (0.077 R)
• M23: 32,866,503 km (0.054 R)
• M24: 37,879,228 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 884.1

Radius: 7.4

Gravity: 16.14 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 5.46 AU - 7.84 AU

Year: 11631 Days

Day: 23.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 57,719,098 km

• M1: 106,364 km (0.038 R)
• M2: 581,188 km (0.087 R)
• M3: 949,946 km (0.106 R)
• M4: 1,277,416 km (0.118 R)
• M5: 1,541,606 km (0.057 R)
• M6: 2,377,110 km (0.073 R)
• M7: 3,697,760 km (0.118 R)
• M8: 4,641,872 km (0.116 R)
• M9: 5,811,728 km (0.113 R)
• M10: 7,123,851 km (0.091 R)
• M11: 7,871,990 km (0.109 R)
• M12: 10,933,510 km (0.092 R)
• M13: 12,415,426 km (0.108 R)
• M14: 15,127,935 km (0.105 R)
• M15: 17,039,048 km (0.087 R)
• M16: 22,509,992 km (0.043 R)
• M17: 22,973,745 km (0.082 R)
• M18: 36,746,024 km (0.094 R)
• M19: 41,405,848 km (0.09 R)
• M20: 45,258,891 km (0.098 R)
• M21: 52,038,667 km (0.051 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: 239 - 13,331 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit