🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 612.7

Radius: 11.8

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.41 AU - 0.67 AU

Year: 274 Days

Day: 6.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 15,074,741 km

• M1: 146,756 km (0.09 R)
• M2: 594,652 km (0.111 R)
• M3: 961,615 km (0.105 R)
• M4: 1,386,772 km (0.057 R)
• M5: 1,807,890 km (0.112 R)
• M6: 2,677,951 km (0.075 R)
• M7: 3,393,628 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56.3

Radius: 10.3

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.49 AU - 0.77 AU

Year: 345 Days

Day: 12.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 15,074,741 km

• M1: 128,056 km (0.1 R)
• M2: 612,154 km (0.111 R)
• M3: 1,085,632 km (0.079 R)
• M4: 1,470,397 km (0.034 R)
• M5: 1,823,748 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 201.6

Radius: 8.7

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.82 AU - 0.84 AU

Year: 522 Days

Day: 10.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 15,074,741 km

• M1: 108,159 km (0.065 R)
• M2: 439,369 km (0.062 R)
• M3: 784,790 km (0.085 R)
• M4: 1,065,586 km (0.039 R)
• M5: 1,504,655 km (0.06 R)
• M6: 1,819,260 km (0.104 R)
• M7: 2,655,811 km (0.106 R)
• M8: 2,988,965 km (0.025 R)
• M9: 3,328,702 km (0.095 R)
• M10: 4,122,768 km (0.063 R)
• M11: 4,401,020 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256.8

Radius: 14.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.73 AU - 0.95 AU

Year: 531 Days

Day: 12.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 15,074,741 km

• M1: 183,257 km (0.094 R)
• M2: 653,443 km (0.08 R)
• M3: 1,191,547 km (0.077 R)
• M4: 1,907,373 km (0.091 R)
• M5: 2,841,462 km (0.049 R)
• M6: 3,587,357 km (0.098 R)
• M7: 4,731,781 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.3

Radius: 14.2

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.93 AU - 1.07 AU

Year: 690 Days

Day: 9.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 15,074,741 km

• M1: 176,675 km (0.054 R)
• M2: 646,263 km (0.084 R)
• M3: 1,644,978 km (0.083 R)
• M4: 2,429,469 km (0.12 R)
• M5: 3,036,538 km (0.1 R)
• M6: 4,941,068 km (0.049 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.2

Radius: 12.8

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.6 AU - 2.06 AU

Year: 1709 Days

Day: 14.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 15,074,741 km

• M1: 159,172 km (0.104 R)
• M2: 564,882 km (0.104 R)
• M3: 1,101,938 km (0.101 R)
• M4: 1,829,283 km (0.1 R)
• M5: 2,453,106 km (0.062 R)
• M6: 2,974,305 km (0.102 R)
• M7: 3,421,154 km (0.112 R)
• M8: 4,569,766 km (0.04 R)
• M9: 5,796,020 km (0.092 R)
• M10: 6,448,566 km (0.102 R)
• M11: 7,284,968 km (0.082 R)
• M12: 7,701,298 km (0.088 R)
• M13: 8,551,463 km (0.099 R)
• M14: 9,528,636 km (0.053 R)
• M15: 9,960,077 km (0.071 R)
• M16: 10,755,189 km (0.079 R)
• M17: 12,629,950 km (0.091 R)
• M18: 14,626,184 km (0.072 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319.2

Radius: 9

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.75 AU - 2.31 AU

Year: 1996 Days

Day: 13.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 15,074,741 km

• M1: 112,049 km (0.111 R)
• M2: 483,201 km (0.081 R)
• M3: 1,183,768 km (0.094 R)
• M4: 1,637,947 km (0.084 R)
• M5: 1,942,977 km (0.117 R)
• M6: 4,050,662 km (0.059 R)
• M7: 4,483,299 km (0.047 R)
• M8: 5,569,978 km (0.11 R)
• M9: 5,900,888 km (0.091 R)
• M10: 6,553,883 km (0.075 R)
• M11: 6,848,142 km (0.106 R)
• M12: 8,981,856 km (0.107 R)
• M13: 9,655,944 km (0.099 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.5

Radius: 13.9

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 4.1 AU - 4.7 AU

Year: 6371 Days

Day: 8.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 15,074,741 km

• M1: 179,218 km (0.099 R)
• M2: 728,093 km (0.118 R)
• M3: 1,936,844 km (0.065 R)
• M4: 2,860,610 km (0.105 R)
• M5: 3,707,185 km (0.081 R)
• M6: 7,576,085 km (0.087 R)
• M7: 9,918,339 km (0.102 R)
• M8: 12,471,226 km (0.115 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: 397 - 15,226 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit