🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 768.4

Radius: 8.1

Gravity: 11.71 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.46 AU - 0.72 AU

Year: 302 Days

Day: 9.7 Hours

Environment

Temp: -146 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,408,462 km

• M1: 100,679 km (0.093 R)
• M2: 392,395 km (0.054 R)
• M3: 710,141 km (0.039 R)
• M4: 1,148,463 km (0.072 R)
• M5: 1,794,127 km (0.114 R)
• M6: 2,235,591 km (0.102 R)
• M7: 2,532,243 km (0.106 R)
• M8: 2,806,007 km (0.064 R)
• M9: 3,078,724 km (0.034 R)
• M10: 3,425,043 km (0.117 R)
• M11: 4,080,880 km (0.1 R)
• M12: 4,365,715 km (0.108 R)
• M13: 4,649,951 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.5

Radius: 13

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.73 AU - 0.81 AU

Year: 451 Days

Day: 10.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,408,462 km

• M1: 161,715 km (0.051 R)
• M2: 701,614 km (0.118 R)
• M3: 1,164,320 km (0.069 R)
• M4: 1,767,499 km (0.079 R)
• M5: 2,719,390 km (0.099 R)
• M6: 3,501,338 km (0.103 R)
• M7: 4,415,381 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328.6

Radius: 10.3

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.78 AU - 1.12 AU

Year: 617 Days

Day: 5.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 42,408,462 km

• M1: 128,056 km (0.065 R)
• M2: 603,328 km (0.089 R)
• M3: 1,035,965 km (0.088 R)
• M4: 1,776,475 km (0.101 R)
• M5: 3,074,835 km (0.047 R)
• M6: 3,478,150 km (0.025 R)
• M7: 3,916,771 km (0.098 R)
• M8: 4,607,465 km (0.119 R)
• M9: 5,013,174 km (0.104 R)
• M10: 5,508,194 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.9

Radius: 10.8

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.4 AU - 1.7 AU

Year: 1287 Days

Day: 6.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,408,462 km

• M1: 134,788 km (0.099 R)
• M2: 510,428 km (0.084 R)
• M3: 1,126,023 km (0.079 R)
• M4: 1,787,545 km (0.085 R)
• M5: 2,211,057 km (0.116 R)
• M6: 2,665,984 km (0.116 R)
• M7: 3,334,985 km (0.068 R)
• M8: 3,676,517 km (0.109 R)
• M9: 4,088,809 km (0.073 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 258

Radius: 7.5

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 5.81 AU - 9.09 AU

Year: 13560 Days

Day: 20.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 42,408,462 km

• M1: 93,349 km (0.116 R)
• M2: 1,157,588 km (0.09 R)
• M3: 1,390,811 km (0.069 R)
• M4: 4,132,043 km (0.107 R)
• M5: 5,772,683 km (0.093 R)
• M6: 6,905,587 km (0.114 R)
• M7: 8,179,862 km (0.053 R)
• M8: 11,875,677 km (0.078 R)
• M9: 12,258,648 km (0.093 R)
• M10: 15,756,097 km (0.087 R)
• M11: 25,173,582 km (0.062 R)
• M12: 27,575,376 km (0.091 R)
• M13: 29,225,889 km (0.083 R)
• M14: 35,577,216 km (0.078 R)
• M15: 37,297,592 km (0.11 R)
• M16: 37,765,534 km (0.117 R)
• M17: 39,676,646 km (0.113 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 500 - 14,675 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit