🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.6

Radius: 14.4

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.7 AU - 0.78 AU

Year: 432 Days

Day: 7.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 41,726,982 km

• M1: 179,069 km (0.055 R)
• M2: 860,487 km (0.114 R)
• M3: 1,383,182 km (0.073 R)
• M4: 1,959,433 km (0.095 R)
• M5: 3,168,034 km (0.065 R)
• M6: 3,847,208 km (0.097 R)
• M7: 4,902,771 km (0.082 R)
• M8: 5,614,109 km (0.032 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.1

Radius: 8.3

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.74 AU - 0.84 AU

Year: 476 Days

Day: 8.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,726,982 km

• M1: 103,223 km (0.096 R)
• M2: 362,924 km (0.107 R)
• M3: 633,547 km (0.061 R)
• M4: 1,070,971 km (0.095 R)
• M5: 1,653,206 km (0.081 R)
• M6: 2,008,501 km (0.061 R)
• M7: 2,440,540 km (0.066 R)
• M8: 2,854,776 km (0.057 R)
• M9: 3,968,981 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89.5

Radius: 8.8

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.88 AU - 1.1 AU

Year: 668 Days

Day: 10.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 41,726,982 km

• M1: 109,506 km (0.119 R)
• M2: 398,080 km (0.079 R)
• M3: 959,222 km (0.052 R)
• M4: 1,694,345 km (0.095 R)
• M5: 2,569,792 km (0.12 R)
• M6: 3,283,224 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 276.6

Radius: 12.7

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.96 AU - 1.54 AU

Year: 948 Days

Day: 6.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,726,982 km

• M1: 158,275 km (0.066 R)
• M2: 569,220 km (0.11 R)
• M3: 1,159,683 km (0.102 R)
• M4: 1,586,186 km (0.112 R)
• M5: 2,211,206 km (0.116 R)
• M6: 2,619,459 km (0.1 R)
• M7: 3,150,232 km (0.088 R)
• M8: 3,834,343 km (0.055 R)
• M9: 4,475,669 km (0.051 R)
• M10: 5,377,146 km (0.063 R)
• M11: 5,806,941 km (0.119 R)
• M12: 6,941,491 km (0.04 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 986.3

Radius: 13.9

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.59 AU - 2.01 AU

Year: 1638 Days

Day: 11 Hours

Environment

Temp: -195 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 41,726,982 km

• M1: 172,935 km (0.092 R)
• M2: 659,727 km (0.063 R)
• M3: 1,474,287 km (0.051 R)
• M4: 2,058,766 km (0.067 R)
• M5: 2,627,687 km (0.038 R)
• M6: 3,172,971 km (0.094 R)
• M7: 3,993,366 km (0.069 R)
• M8: 4,454,426 km (0.037 R)
• M9: 5,485,006 km (0.109 R)
• M10: 5,983,466 km (0.083 R)
• M11: 8,046,570 km (0.119 R)
• M12: 10,875,316 km (0.108 R)
• M13: 11,703,939 km (0.079 R)
• M14: 12,453,275 km (0.117 R)
• M15: 13,917,090 km (0.079 R)
• M16: 14,894,263 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 625.9

Radius: 12.2

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.83 AU - 2.51 AU

Year: 2168 Days

Day: 9.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 41,726,982 km

• M1: 151,842 km (0.066 R)
• M2: 661,821 km (0.098 R)
• M3: 1,093,560 km (0.116 R)
• M4: 1,549,535 km (0.053 R)
• M5: 2,073,127 km (0.1 R)
• M6: 2,586,398 km (0.094 R)
• M7: 3,120,312 km (0.069 R)
• M8: 3,533,502 km (0.118 R)
• M9: 4,594,749 km (0.085 R)
• M10: 6,130,670 km (0.1 R)
• M11: 6,622,847 km (0.087 R)
• M12: 7,030,053 km (0.076 R)
• M13: 8,198,562 km (0.076 R)
• M14: 8,959,416 km (0.098 R)
• M15: 11,410,727 km (0.096 R)
• M16: 12,522,539 km (0.12 R)
• M17: 15,240,133 km (0.106 R)
• M18: 15,712,564 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 387.3

Radius: 4.6

Gravity: 18.3 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 5.98 AU - 6.68 AU

Year: 10802 Days

Day: 17.6 Hours

Environment

Temp: -238 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 41,726,982 km

• M1: 57,296 km (0.098 R)
• M2: 316,848 km (0.105 R)
• M3: 483,052 km (0.087 R)
• M4: 731,982 km (0.097 R)
• M5: 1,541,157 km (0.036 R)
• M6: 2,548,101 km (0.099 R)
• M7: 3,370,290 km (0.052 R)
• M8: 4,166,301 km (0.119 R)
• M9: 4,551,366 km (0.102 R)
• M10: 4,989,687 km (0.089 R)
• M11: 5,141,978 km (0.031 R)
• M12: 7,065,956 km (0.086 R)
• M13: 9,749,892 km (0.117 R)
• M14: 12,201,202 km (0.105 R)
• M15: 14,349,877 km (0.105 R)
• M16: 15,352,631 km (0.104 R)
• M17: 23,201,134 km (0.103 R)
• M18: 26,193,390 km (0.076 R)
• M19: 28,453,964 km (0.085 R)
• M20: 34,667,511 km (0.105 R)
• M21: 37,619,526 km (0.065 R)
• M22: 39,396,599 km (0.071 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 401 - 11,235 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit