🌌 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: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 160.3

Radius: 9.5

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.52 AU - 0.54 AU

Year: 262 Days

Day: 6.6 Hours

Environment

Temp: -136 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 6,271,827 km

• M1: 118,182 km (0.093 R)
• M2: 486,043 km (0.104 R)
• M3: 849,118 km (0.032 R)
• M4: 1,293,124 km (0.102 R)
• M5: 1,788,891 km (0.108 R)
• M6: 2,235,740 km (0.032 R)
• M7: 2,603,601 km (0.051 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.2

Radius: 10.3

Gravity: 7.62 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.61 AU - 0.65 AU

Year: 339 Days

Day: 6.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 6,271,827 km

• M1: 128,505 km (0.12 R)
• M2: 487,689 km (0.116 R)
• M3: 975,677 km (0.063 R)
• M4: 1,320,949 km (0.088 R)
• M5: 1,671,756 km (0.067 R)
• M6: 2,021,067 km (0.052 R)
• M7: 2,392,519 km (0.053 R)
• M8: 3,036,089 km (0.026 R)
• M9: 3,376,424 km (0.047 R)
• M10: 3,890,891 km (0.116 R)
• M11: 4,596,395 km (0.109 R)
• M12: 5,183,566 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73.4

Radius: 11.4

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.54 AU - 0.84 AU

Year: 389 Days

Day: 11.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 6,271,827 km

• M1: 141,819 km (0.043 R)
• M2: 507,586 km (0.067 R)
• M3: 1,139,038 km (0.114 R)
• M4: 1,697,038 km (0.086 R)
• M5: 2,078,363 km (0.037 R)
• M6: 2,446,075 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.5

Radius: 8.6

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.64 AU - 0.78 AU

Year: 406 Days

Day: 12.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 6,271,827 km

• M1: 106,962 km (0.097 R)
• M2: 378,782 km (0.08 R)
• M3: 857,794 km (0.076 R)
• M4: 1,702,873 km (0.094 R)
• M5: 2,077,914 km (0.101 R)
• M6: 2,812,290 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 49.6

Radius: 13.7

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.61 AU - 0.95 AU

Year: 467 Days

Day: 10.1 Hours

Environment

Temp: -171 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 6,271,827 km

• M1: 170,542 km (0.087 R)
• M2: 597,943 km (0.109 R)
• M3: 1,037,012 km (0.063 R)
• M4: 1,544,897 km (0.088 R)
• M5: 1,995,037 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.6

Radius: 10.2

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.84 AU - 0.96 AU

Year: 579 Days

Day: 6.9 Hours

Environment

Temp: -172 °C

Axial Tilt: 156 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 6,271,827 km

• M1: 127,158 km (0.042 R)
• M2: 447,447 km (0.1 R)
• M3: 995,275 km (0.03 R)
• M4: 1,369,419 km (0.05 R)
• M5: 1,714,840 km (0.101 R)
• M6: 2,227,662 km (0.101 R)
• M7: 2,740,932 km (0.098 R)
• M8: 3,079,173 km (0.082 R)
• M9: 3,434,019 km (0.078 R)
• M10: 3,992,169 km (0.119 R)
• M11: 4,415,531 km (0.07 R)
• M12: 4,883,174 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.3

Radius: 8.3

Gravity: 11.86 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.78 AU - 1.2 AU

Year: 668 Days

Day: 12.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 6,271,827 km

• M1: 103,223 km (0.112 R)
• M2: 400,324 km (0.045 R)
• M3: 681,418 km (0.111 R)
• M4: 961,615 km (0.047 R)
• M5: 1,369,269 km (0.084 R)
• M6: 1,666,819 km (0.064 R)
• M7: 2,035,728 km (0.068 R)
• M8: 2,332,081 km (0.054 R)
• M9: 2,645,788 km (0.099 R)
• M10: 3,099,967 km (0.086 R)
• M11: 3,549,359 km (0.077 R)
• M12: 4,102,422 km (0.073 R)
• M13: 4,432,136 km (0.036 R)
• M14: 4,745,544 km (0.077 R)
• M15: 5,234,429 km (0.086 R)
• M16: 5,833,868 km (0.104 R)
• M17: 6,731,755 km (0.104 R)
• M18: 7,036,037 km (0.08 R)
• M19: 7,648,640 km (0.07 R)
• M20: 7,932,277 km (0.092 R)
• M21: 8,247,331 km (0.05 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 968.4

Radius: 8.7

Gravity: 12.79 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.14 AU - 1.74 AU

Year: 1172 Days

Day: 6 Hours

Environment

Temp: -196 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 6,271,827 km

• M1: 110,254 km (0.097 R)
• M2: 407,056 km (0.111 R)
• M3: 704,307 km (0.041 R)
• M4: 1,159,832 km (0.041 R)
• M5: 1,451,548 km (0.083 R)
• M6: 1,988,754 km (0.103 R)
• M7: 2,461,783 km (0.093 R)
• M8: 2,826,502 km (0.068 R)
• M9: 3,916,323 km (0.082 R)
• M10: 5,562,797 km (0.119 R)
• M11: 6,431,063 km (0.114 R)
• M12: 6,922,941 km (0.093 R)
• M13: 7,953,969 km (0.076 R)
• M14: 8,579,139 km (0.109 R)
• M15: 9,483,907 km (0.118 R)
• M16: 10,417,547 km (0.055 R)
• M17: 10,855,420 km (0.103 R)
• M18: 11,732,213 km (0.08 R)
• M19: 12,429,339 km (0.118 R)

Planet 9 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.1

Radius: 12.3

Gravity: 5.75 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.53 AU - 1.79 AU

Year: 1451 Days

Day: 10.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 6,271,827 km

• M1: 154,086 km (0.068 R)
• M2: 621,878 km (0.086 R)
• M3: 1,173,745 km (0.105 R)
• M4: 1,569,431 km (0.114 R)
• M5: 2,022,713 km (0.113 R)
• M6: 2,737,491 km (0.05 R)
• M7: 3,230,865 km (0.102 R)
• M8: 4,303,781 km (0.034 R)
• M9: 4,730,285 km (0.051 R)
• M10: 5,945,169 km (0.117 R)
• M11: 6,327,990 km (0.118 R)
• M12: 7,011,652 km (0.077 R)
• M13: 7,604,658 km (0.074 R)
• M14: 8,738,012 km (0.091 R)
• M15: 9,329,671 km (0.087 R)
• M16: 10,523,761 km (0.104 R)
• M17: 11,594,433 km (0.068 R)
• M18: 13,173,588 km (0.112 R)

Planet 10 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 46.4

Radius: 10.2

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.52 AU - 2.34 AU

Year: 1819 Days

Day: 10.6 Hours

Environment

Temp: -204 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 6,271,827 km

• M1: 128,505 km (0.105 R)
• M2: 595,250 km (0.043 R)
• M3: 975,977 km (0.118 R)
• M4: 1,619,846 km (0.103 R)
• M5: 2,234,543 km (0.108 R)
• M6: 4,062,779 km (0.1 R)
• M7: 4,591,607 km (0.085 R)
• M8: 5,362,186 km (0.095 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: 165 - 13,739 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit