🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644.9

Radius: 10.4

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.39 AU - 0.63 AU

Year: 251 Days

Day: 10.9 Hours

Environment

Temp: -137 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,806,720 km

• M1: 129,402 km (0.118 R)
• M2: 452,833 km (0.107 R)
• M3: 778,507 km (0.044 R)
• M4: 1,241,064 km (0.11 R)
• M5: 1,883,288 km (0.095 R)
• M6: 2,392,968 km (0.081 R)
• M7: 3,050,600 km (0.084 R)
• M8: 3,380,912 km (0.093 R)
• M9: 3,712,870 km (0.037 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.3

Radius: 14.3

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.54 AU - 0.58 AU

Year: 289 Days

Day: 12.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 21,806,720 km

• M1: 177,872 km (0.083 R)
• M2: 624,721 km (0.079 R)
• M3: 1,417,889 km (0.091 R)
• M4: 1,901,389 km (0.077 R)
• M5: 2,791,496 km (0.091 R)
• M6: 3,578,381 km (0.074 R)
• M7: 4,131,444 km (0.116 R)
• M8: 4,590,261 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.3

Radius: 12

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.57 AU - 0.61 AU

Year: 313 Days

Day: 6.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 21,806,720 km

• M1: 149,299 km (0.092 R)
• M2: 534,812 km (0.06 R)
• M3: 1,205,460 km (0.104 R)
• M4: 1,581,997 km (0.111 R)
• M5: 1,960,031 km (0.075 R)
• M6: 2,591,634 km (0.045 R)
• M7: 3,043,868 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464.1

Radius: 12.3

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.16 AU - 1.36 AU

Year: 976 Days

Day: 11.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 21,806,720 km

• M1: 153,188 km (0.108 R)
• M2: 579,542 km (0.111 R)
• M3: 1,023,698 km (0.052 R)
• M4: 1,604,587 km (0.109 R)
• M5: 1,991,596 km (0.111 R)
• M6: 2,378,157 km (0.103 R)
• M7: 3,551,753 km (0.073 R)
• M8: 4,158,073 km (0.044 R)
• M9: 4,849,813 km (0.054 R)
• M10: 5,446,110 km (0.103 R)
• M11: 6,172,259 km (0.098 R)
• M12: 6,655,609 km (0.046 R)
• M13: 7,914,625 km (0.055 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 109.3

Radius: 12.2

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.13 AU - 1.63 AU

Year: 1119 Days

Day: 9.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,806,720 km

• M1: 153,487 km (0.045 R)
• M2: 548,575 km (0.096 R)
• M3: 1,174,194 km (0.049 R)
• M4: 1,813,126 km (0.118 R)
• M5: 2,488,561 km (0.109 R)
• M6: 2,870,185 km (0.078 R)
• M7: 3,640,015 km (0.069 R)
• M8: 4,630,802 km (0.12 R)
• M9: 5,759,069 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 66.9

Radius: 11.4

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.99 AU - 2.39 AU

Year: 2237 Days

Day: 14.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 21,806,720 km

• M1: 143,764 km (0.059 R)
• M2: 499,358 km (0.109 R)
• M3: 1,252,733 km (0.099 R)
• M4: 1,973,944 km (0.09 R)
• M5: 3,567,909 km (0.05 R)
• M6: 5,190,149 km (0.065 R)
• M7: 6,654,113 km (0.114 R)
• M8: 7,346,602 km (0.088 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 931.9

Radius: 8.1

Gravity: 14.2 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.36 AU - 2.52 AU

Year: 2631 Days

Day: 8.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 21,806,720 km

• M1: 100,679 km (0.1 R)
• M2: 692,638 km (0.073 R)
• M3: 1,015,470 km (0.096 R)
• M4: 2,105,141 km (0.04 R)
• M5: 2,623,348 km (0.097 R)
• M6: 2,912,820 km (0.06 R)
• M7: 3,277,689 km (0.104 R)
• M8: 4,141,767 km (0.043 R)
• M9: 5,925,272 km (0.081 R)
• M10: 7,324,761 km (0.05 R)
• M11: 8,270,219 km (0.094 R)
• M12: 9,184,860 km (0.115 R)
• M13: 9,629,166 km (0.112 R)
• M14: 10,843,302 km (0.033 R)
• M15: 11,550,900 km (0.112 R)
• M16: 14,149,116 km (0.119 R)
• M17: 15,248,511 km (0.103 R)
• M18: 16,296,444 km (0.106 R)
• M19: 18,710,954 km (0.094 R)
• M20: 19,727,920 km (0.116 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 333 - 16,064 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit