🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 86.5

Radius: 14.3

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.49 AU - 0.81 AU

Year: 355 Days

Day: 13.3 Hours

Environment

Temp: -147 °C

Axial Tilt: 105.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 60,121,368 km

• M1: 177,872 km (0.086 R)
• M2: 886,816 km (0.046 R)
• M3: 1,628,672 km (0.057 R)
• M4: 2,132,069 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 843.1

Radius: 14

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.68 AU - 0.72 AU

Year: 397 Days

Day: 13.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 60,121,368 km

• M1: 174,132 km (0.069 R)
• M2: 638,933 km (0.068 R)
• M3: 1,119,142 km (0.035 R)
• M4: 1,790,836 km (0.072 R)
• M5: 2,269,848 km (0.083 R)
• M6: 3,422,500 km (0.115 R)
• M7: 4,844,278 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.3

Radius: 10.9

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.7 AU - 0.82 AU

Year: 449 Days

Day: 11.3 Hours

Environment

Temp: -153 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,121,368 km

• M1: 138,976 km (0.065 R)
• M2: 603,029 km (0.077 R)
• M3: 1,036,713 km (0.119 R)
• M4: 1,834,668 km (0.057 R)
• M5: 2,524,913 km (0.106 R)
• M6: 2,880,357 km (0.11 R)
• M7: 3,540,383 km (0.116 R)
• M8: 3,975,563 km (0.077 R)
• M9: 4,459,961 km (0.095 R)
• M10: 4,968,893 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.6

Radius: 11

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.1 AU - 1.32 AU

Year: 903 Days

Day: 6.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,121,368 km

• M1: 136,882 km (0.103 R)
• M2: 565,779 km (0.065 R)
• M3: 1,067,680 km (0.098 R)
• M4: 1,448,407 km (0.104 R)
• M5: 1,806,544 km (0.062 R)
• M6: 2,214,647 km (0.075 R)
• M7: 2,776,536 km (0.096 R)
• M8: 4,171,686 km (0.09 R)
• M9: 5,210,943 km (0.076 R)
• M10: 5,869,622 km (0.111 R)
• M11: 6,993,700 km (0.066 R)
• M12: 8,556,101 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339.1

Radius: 8.2

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 2.66 AU - 3.22 AU

Year: 3419 Days

Day: 12.4 Hours

Environment

Temp: -216 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 60,121,368 km

• M1: 102,026 km (0.048 R)
• M2: 369,806 km (0.076 R)
• M3: 661,971 km (0.062 R)
• M4: 1,782,159 km (0.119 R)
• M5: 2,078,064 km (0.117 R)
• M6: 3,888,797 km (0.036 R)
• M7: 4,144,759 km (0.106 R)
• M8: 4,560,491 km (0.114 R)
• M9: 4,912,944 km (0.088 R)
• M10: 6,590,385 km (0.035 R)
• M11: 6,898,407 km (0.108 R)
• M12: 7,334,036 km (0.084 R)
• M13: 10,493,243 km (0.111 R)
• M14: 11,994,308 km (0.065 R)
• M15: 12,369,799 km (0.063 R)
• M16: 13,409,654 km (0.109 R)
• M17: 13,859,794 km (0.055 R)
• M18: 14,695,148 km (0.085 R)
• M19: 15,662,448 km (0.071 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 71.7

Radius: 5.7

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 5.97 AU - 7.65 AU

Year: 12053 Days

Day: 21.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,121,368 km

• M1: 85,420 km (0.116 R)
• M2: 419,173 km (0.085 R)
• M3: 725,849 km (0.092 R)
• M4: 971,189 km (0.066 R)
• M5: 1,596,060 km (0.097 R)
• M6: 2,736,743 km (0.095 R)
• M7: 3,617,127 km (0.078 R)
• M8: 5,048,928 km (0.114 R)
• M9: 5,581,945 km (0.118 R)
• M10: 8,022,784 km (0.081 R)
• M11: 16,641,267 km (0.103 R)
• M12: 21,946,008 km (0.097 R)
• M13: 23,213,102 km (0.034 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 906.2

Radius: 5.1

Gravity: 34.84 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 5.51 AU - 8.23 AU

Year: 12213 Days

Day: 18 Hours

Environment

Temp: -240 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 60,121,368 km

• M1: 63,579 km (0.078 R)
• M2: 231,727 km (0.109 R)
• M3: 390,899 km (0.051 R)
• M4: 765,941 km (0.114 R)
• M5: 990,637 km (0.116 R)
• M6: 1,339,948 km (0.045 R)
• M7: 1,852,620 km (0.112 R)
• M8: 4,202,653 km (0.096 R)
• M9: 4,513,069 km (0.061 R)
• M10: 4,805,233 km (0.103 R)
• M11: 5,609,471 km (0.114 R)
• M12: 8,030,115 km (0.12 R)
• M13: 11,720,993 km (0.09 R)
• M14: 12,778,201 km (0.104 R)
• M15: 16,863,270 km (0.078 R)
• M16: 19,536,734 km (0.1 R)
• M17: 21,741,059 km (0.101 R)
• M18: 22,386,723 km (0.111 R)
• M19: 22,573,421 km (0.042 R)
• M20: 22,950,258 km (0.088 R)
• M21: 29,115,635 km (0.113 R)
• M22: 35,406,375 km (0.025 R)
• M23: 39,475,587 km (0.078 R)
• M24: 45,023,574 km (0.075 R)
• M25: 47,750,743 km (0.108 R)
• M26: 55,728,648 km (0.101 R)
• M27: 59,761,806 km (0.116 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 447 - 17,028 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit