🌌 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: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 233.7

Radius: 14.7

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.47 AU - 0.73 AU

Year: 321 Days

Day: 14.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 16,143,740 km

• M1: 182,809 km (0.064 R)
• M2: 712,086 km (0.062 R)
• M3: 1,215,483 km (0.1 R)
• M4: 1,689,110 km (0.065 R)
• M5: 2,253,094 km (0.108 R)
• M6: 3,021,727 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.8

Radius: 13.4

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.47 AU - 0.79 AU

Year: 345 Days

Day: 5.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 16,143,740 km

• M1: 167,101 km (0.089 R)
• M2: 760,406 km (0.112 R)
• M3: 1,243,906 km (0.096 R)
• M4: 1,742,067 km (0.107 R)
• M5: 2,162,736 km (0.035 R)
• M6: 2,741,082 km (0.04 R)
• M7: 3,236,251 km (0.108 R)
• M8: 3,893,434 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.4

Radius: 11.8

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.61 AU - 0.65 AU

Year: 345 Days

Day: 11.1 Hours

Environment

Temp: -146 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 16,143,740 km

• M1: 146,756 km (0.107 R)
• M2: 537,056 km (0.075 R)
• M3: 938,577 km (0.095 R)
• M4: 1,785,151 km (0.039 R)
• M5: 2,671,070 km (0.063 R)
• M6: 3,096,227 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.5

Radius: 9

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.79 AU - 1.19 AU

Year: 680 Days

Day: 9.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 16,143,740 km

• M1: 131,048 km (0.095 R)
• M2: 575,802 km (0.098 R)
• M3: 916,586 km (0.028 R)
• M4: 1,501,215 km (0.064 R)
• M5: 1,900,641 km (0.085 R)
• M6: 2,377,709 km (0.095 R)
• M7: 2,690,966 km (0.065 R)
• M8: 3,199,001 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.9

Radius: 13

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.75 AU - 1.23 AU

Year: 680 Days

Day: 8.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 16,143,740 km

• M1: 164,109 km (0.114 R)
• M2: 592,108 km (0.117 R)
• M3: 1,086,829 km (0.104 R)
• M4: 1,517,521 km (0.08 R)
• M5: 2,019,571 km (0.088 R)
• M6: 2,494,096 km (0.1 R)
• M7: 2,971,911 km (0.06 R)
• M8: 3,405,745 km (0.118 R)
• M9: 4,026,427 km (0.077 R)
• M10: 4,953,485 km (0.112 R)
• M11: 5,531,381 km (0.119 R)
• M12: 6,272,190 km (0.12 R)
• M13: 6,971,111 km (0.113 R)
• M14: 7,495,153 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 335.3

Radius: 10.4

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 1.38 AU - 1.42 AU

Year: 1143 Days

Day: 13.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 16,143,740 km

• M1: 129,402 km (0.113 R)
• M2: 461,958 km (0.106 R)
• M3: 788,381 km (0.113 R)
• M4: 1,199,476 km (0.049 R)
• M5: 1,533,378 km (0.056 R)
• M6: 2,061,758 km (0.063 R)
• M7: 2,504,568 km (0.07 R)
• M8: 2,948,125 km (0.078 R)
• M9: 3,321,522 km (0.068 R)
• M10: 3,683,100 km (0.092 R)
• M11: 4,086,415 km (0.104 R)
• M12: 4,789,974 km (0.069 R)
• M13: 5,496,076 km (0.108 R)
• M14: 6,716,346 km (0.094 R)
• M15: 7,047,705 km (0.118 R)
• M16: 7,815,890 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 911.1

Radius: 8.8

Gravity: 11.77 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.63 AU - 2.01 AU

Year: 1695 Days

Day: 8 Hours

Environment

Temp: -202 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 16,143,740 km

• M1: 109,506 km (0.083 R)
• M2: 690,843 km (0.107 R)
• M3: 1,038,808 km (0.092 R)
• M4: 1,323,044 km (0.079 R)
• M5: 1,795,474 km (0.092 R)
• M6: 2,261,471 km (0.118 R)
• M7: 3,270,359 km (0.059 R)
• M8: 4,099,730 km (0.093 R)
• M9: 5,285,742 km (0.118 R)
• M10: 7,747,823 km (0.104 R)
• M11: 8,349,805 km (0.074 R)
• M12: 8,821,487 km (0.085 R)
• M13: 9,783,701 km (0.107 R)
• M14: 10,559,216 km (0.063 R)
• M15: 11,759,589 km (0.049 R)
• M16: 13,427,306 km (0.074 R)
• M17: 14,788,797 km (0.094 R)
• M18: 15,667,535 km (0.056 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 202 - 14,843 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit