🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.05

Radius: 1.02

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.6 AU - 0.64 AU

Year: 320 Days

Day: 37.1 Hours

Environment

Temp: -140 °C

Axial Tilt: 20.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 41,193,719 km

• M1: 42,037 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.7

Radius: 10.4

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.66 AU - 0.74 AU

Year: 384 Days

Day: 7.3 Hours

Environment

Temp: -145 °C

Axial Tilt: 53.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 41,193,719 km

• M1: 130,449 km (0.081 R)
• M2: 1,000,361 km (0.04 R)
• M3: 2,341,655 km (0.12 R)
• M4: 2,826,801 km (0.102 R)
• M5: 3,283,075 km (0.084 R)
• M6: 3,916,622 km (0.032 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.3

Radius: 11

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.12 AU - 1.22 AU

Year: 830 Days

Day: 14.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,193,719 km

• M1: 137,032 km (0.082 R)
• M2: 499,806 km (0.041 R)
• M3: 1,002,755 km (0.115 R)
• M4: 1,989,801 km (0.119 R)
• M5: 2,630,230 km (0.076 R)
• M6: 3,548,162 km (0.074 R)
• M7: 4,414,184 km (0.058 R)
• M8: 5,066,132 km (0.111 R)
• M9: 6,623,745 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.6

Radius: 13.8

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 2.03 AU - 2.29 AU

Year: 2083 Days

Day: 11.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,193,719 km

• M1: 171,589 km (0.109 R)
• M2: 1,183,170 km (0.054 R)
• M3: 2,579,815 km (0.104 R)
• M4: 3,080,669 km (0.091 R)
• M5: 3,714,964 km (0.066 R)
• M6: 4,175,277 km (0.053 R)
• M7: 4,690,192 km (0.072 R)
• M8: 5,496,824 km (0.049 R)
• M9: 6,995,496 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 877.5

Radius: 13.4

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 2.15 AU - 2.87 AU

Year: 2609 Days

Day: 9 Hours

Environment

Temp: -204 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 41,193,719 km

• M1: 166,652 km (0.112 R)
• M2: 697,126 km (0.103 R)
• M3: 1,134,101 km (0.064 R)
• M4: 1,728,903 km (0.091 R)
• M5: 2,246,062 km (0.074 R)
• M6: 3,580,176 km (0.025 R)
• M7: 4,345,070 km (0.103 R)
• M8: 5,290,080 km (0.091 R)
• M9: 6,229,106 km (0.114 R)
• M10: 10,250,596 km (0.119 R)
• M11: 11,207,872 km (0.071 R)
• M12: 12,007,323 km (0.066 R)
• M13: 12,889,502 km (0.093 R)
• M14: 13,814,466 km (0.047 R)
• M15: 14,832,778 km (0.119 R)
• M16: 15,952,668 km (0.113 R)
• M17: 20,135,275 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 62.4

Radius: 8.7

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 3.9 AU - 4.18 AU

Year: 5327 Days

Day: 11.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 41,193,719 km

• M1: 108,159 km (0.119 R)
• M2: 454,778 km (0.106 R)
• M3: 742,753 km (0.113 R)
• M4: 1,339,200 km (0.11 R)
• M5: 1,663,678 km (0.091 R)
• M6: 2,166,776 km (0.114 R)
• M7: 3,191,970 km (0.079 R)
• M8: 3,726,483 km (0.117 R)
• M9: 6,756,887 km (0.063 R)
• M10: 7,175,013 km (0.061 R)
• M11: 7,610,343 km (0.103 R)
• M12: 8,715,123 km (0.088 R)
• M13: 9,401,628 km (0.032 R)
• M14: 10,191,205 km (0.09 R)
• M15: 10,498,479 km (0.028 R)
• M16: 11,203,534 km (0.09 R)
• M17: 11,530,854 km (0.108 R)
• M18: 12,668,546 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551

Radius: 12.5

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 5.05 AU - 6.35 AU

Year: 8927 Days

Day: 13.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 41,193,719 km

• M1: 155,432 km (0.112 R)
• M2: 683,064 km (0.083 R)
• M3: 1,128,866 km (0.111 R)
• M4: 1,731,296 km (0.103 R)
• M5: 2,141,194 km (0.088 R)
• M6: 2,616,766 km (0.063 R)
• M7: 3,475,009 km (0.064 R)
• M8: 4,242,147 km (0.1 R)
• M9: 5,553,372 km (0.08 R)
• M10: 6,216,240 km (0.09 R)
• M11: 6,747,612 km (0.068 R)
• M12: 8,398,724 km (0.076 R)
• M13: 10,353,369 km (0.102 R)
• M14: 12,988,237 km (0.092 R)
• M15: 15,205,876 km (0.077 R)
• M16: 18,087,879 km (0.044 R)
• M17: 20,225,782 km (0.094 R)
• M18: 22,857,956 km (0.091 R)
• M19: 24,647,147 km (0.099 R)
• M20: 25,352,800 km (0.071 R)
• M21: 27,082,600 km (0.092 R)
• M22: 32,637,767 km (0.082 R)
• M23: 36,584,309 km (0.025 R)
• M24: 39,625,035 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 460.8

Radius: 3.3

Gravity: 42.31 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 4.59 AU - 7.47 AU

Year: 9714 Days

Day: 23.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 41,193,719 km

• M1: 41,439 km (0.095 R)
• M2: 212,728 km (0.087 R)
• M3: 461,509 km (0.074 R)
• M4: 624,272 km (0.082 R)
• M5: 824,284 km (0.118 R)
• M6: 954,135 km (0.111 R)
• M7: 1,820,606 km (0.097 R)
• M8: 2,371,276 km (0.036 R)
• M9: 2,538,975 km (0.101 R)
• M10: 3,267,517 km (0.063 R)
• M11: 3,475,308 km (0.103 R)
• M12: 3,594,538 km (0.101 R)
• M13: 4,232,273 km (0.116 R)
• M14: 4,620,629 km (0.059 R)
• M15: 6,202,477 km (0.088 R)
• M16: 7,152,573 km (0.094 R)
• M17: 7,306,958 km (0.063 R)
• M18: 8,841,384 km (0.102 R)
• M19: 11,872,237 km (0.084 R)
• M20: 14,217,034 km (0.073 R)
• M21: 15,465,278 km (0.034 R)
• M22: 16,182,002 km (0.071 R)
• M23: 16,582,176 km (0.101 R)
• M24: 18,177,488 km (0.096 R)
• M25: 18,755,534 km (0.092 R)
• M26: 19,271,198 km (0.096 R)
• M27: 19,420,347 km (0.084 R)
• M28: 23,913,519 km (0.117 R)
• M29: 24,085,556 km (0.082 R)
• M30: 25,224,894 km (0.098 R)
• M31: 29,742,301 km (0.082 R)
• M32: 31,257,428 km (0.058 R)
• M33: 31,773,690 km (0.088 R)
• M34: 36,678,256 km (0.098 R)
• M35: 37,483,990 km (0.033 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 209 - 11,095 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit