🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.9

Radius: 13.3

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.62 AU - 0.72 AU

Year: 372 Days

Day: 9.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 21,806,872 km

• M1: 177,872 km (0.045 R)
• M2: 669,899 km (0.043 R)
• M3: 1,135,448 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 602.3

Radius: 9.4

Gravity: 6.82 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.51 AU - 0.83 AU

Year: 372 Days

Day: 5.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,806,872 km

• M1: 116,836 km (0.096 R)
• M2: 639,381 km (0.074 R)
• M3: 967,001 km (0.082 R)
• M4: 1,373,159 km (0.043 R)
• M5: 1,716,935 km (0.094 R)
• M6: 2,696,202 km (0.11 R)
• M7: 4,138,775 km (0.117 R)
• M8: 4,554,507 km (0.116 R)
• M9: 4,851,758 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 318.3

Radius: 10.2

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.59 AU - 0.85 AU

Year: 414 Days

Day: 13.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 21,806,872 km

• M1: 126,859 km (0.107 R)
• M2: 477,516 km (0.114 R)
• M3: 1,018,313 km (0.117 R)
• M4: 1,419,983 km (0.029 R)
• M5: 1,970,802 km (0.082 R)
• M6: 2,826,203 km (0.114 R)
• M7: 3,161,302 km (0.096 R)
• M8: 3,500,889 km (0.058 R)
• M9: 3,912,134 km (0.038 R)
• M10: 4,445,750 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 897.6

Radius: 10.1

Gravity: 8.8 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.15 AU - 1.37 AU

Year: 959 Days

Day: 8.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 21,806,872 km

• M1: 125,812 km (0.079 R)
• M2: 740,809 km (0.106 R)
• M3: 1,225,207 km (0.114 R)
• M4: 1,671,158 km (0.079 R)
• M5: 2,116,810 km (0.086 R)
• M6: 2,579,815 km (0.092 R)
• M7: 4,335,346 km (0.081 R)
• M8: 4,709,640 km (0.082 R)
• M9: 5,183,566 km (0.107 R)
• M10: 5,815,168 km (0.108 R)
• M11: 6,138,749 km (0.064 R)
• M12: 6,542,962 km (0.074 R)
• M13: 7,631,885 km (0.105 R)
• M14: 8,073,348 km (0.079 R)
• M15: 8,614,444 km (0.058 R)
• M16: 9,007,437 km (0.045 R)
• M17: 9,709,201 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 306.5

Radius: 8.8

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.28 AU - 1.5 AU

Year: 1112 Days

Day: 5.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 21,806,872 km

• M1: 109,506 km (0.053 R)
• M2: 388,805 km (0.03 R)
• M3: 856,597 km (0.1 R)
• M4: 1,142,629 km (0.07 R)
• M5: 1,586,485 km (0.061 R)
• M6: 2,074,474 km (0.071 R)
• M7: 2,569,643 km (0.046 R)
• M8: 2,881,704 km (0.101 R)
• M9: 3,582,570 km (0.118 R)
• M10: 4,003,688 km (0.114 R)
• M11: 4,392,792 km (0.108 R)
• M12: 4,722,057 km (0.069 R)
• M13: 5,174,890 km (0.057 R)
• M14: 5,869,024 km (0.113 R)
• M15: 6,816,876 km (0.069 R)
• M16: 7,441,896 km (0.114 R)
• M17: 7,839,527 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 51.7

Radius: 10.1

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 3.23 AU - 4.17 AU

Year: 4827 Days

Day: 8.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 21,806,872 km

• M1: 136,134 km (0.112 R)
• M2: 468,840 km (0.079 R)
• M3: 797,357 km (0.094 R)
• M4: 4,074,448 km (0.039 R)
• M5: 4,693,035 km (0.072 R)
• M6: 6,467,116 km (0.096 R)
• M7: 7,181,147 km (0.105 R)
• M8: 7,865,258 km (0.039 R)
• M9: 8,620,876 km (0.116 R)
• M10: 9,393,699 km (0.095 R)
• M11: 12,280,938 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.6

Radius: 12

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 3.78 AU - 5.02 AU

Year: 6260 Days

Day: 13.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 21,806,872 km

• M1: 149,299 km (0.111 R)
• M2: 751,729 km (0.073 R)
• M3: 1,176,587 km (0.037 R)
• M4: 2,243,519 km (0.098 R)
• M5: 2,744,373 km (0.096 R)
• M6: 3,428,634 km (0.117 R)
• M7: 5,137,939 km (0.093 R)
• M8: 5,616,353 km (0.045 R)
• M9: 6,319,313 km (0.113 R)
• M10: 7,705,936 km (0.081 R)
• M11: 8,199,310 km (0.098 R)
• M12: 8,996,816 km (0.086 R)
• M13: 9,544,344 km (0.097 R)
• M14: 10,990,357 km (0.086 R)
• M15: 11,960,051 km (0.053 R)
• M16: 15,572,091 km (0.03 R)
• M17: 17,625,920 km (0.106 R)
• M18: 18,894,361 km (0.105 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 425 - 12,485 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit