🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.89

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.53 AU - 0.65 AU

Year: 297 Days

Day: 17.9 Hours

Environment

Temp: -133 °C

Axial Tilt: 19.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.68

Radius: 1.85

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.66 AU - 0.68 AU

Year: 360 Days

Day: 14.3 Hours

Environment

Temp: -139 °C

Axial Tilt: 20.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561.2

Radius: 10.5

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.7 AU - 0.82 AU

Year: 435 Days

Day: 7.4 Hours

Environment

Temp: -141 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,166,005 km

• M1: 130,749 km (0.077 R)
• M2: 466,745 km (0.078 R)
• M3: 807,380 km (0.099 R)
• M4: 1,192,445 km (0.053 R)
• M5: 1,708,408 km (0.093 R)
• M6: 2,117,857 km (0.082 R)
• M7: 2,525,960 km (0.116 R)
• M8: 3,203,938 km (0.074 R)
• M9: 3,985,886 km (0.115 R)
• M10: 4,684,957 km (0.084 R)
• M11: 5,133,152 km (0.107 R)
• M12: 5,463,763 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658

Radius: 15

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.74 AU - 0.92 AU

Year: 496 Days

Day: 8.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,166,005 km

• M1: 186,549 km (0.078 R)
• M2: 774,319 km (0.077 R)
• M3: 1,340,547 km (0.063 R)
• M4: 1,811,481 km (0.117 R)
• M5: 2,405,085 km (0.071 R)
• M6: 2,896,813 km (0.119 R)
• M7: 3,705,240 km (0.095 R)
• M8: 4,425,105 km (0.099 R)
• M9: 5,967,160 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385.5

Radius: 11.6

Gravity: 2.86 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.74 AU - 0.98 AU

Year: 523 Days

Day: 6.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 21,166,005 km

• M1: 144,362 km (0.046 R)
• M2: 513,121 km (0.081 R)
• M3: 969,843 km (0.095 R)
• M4: 1,338,153 km (0.118 R)
• M5: 1,780,364 km (0.088 R)
• M6: 2,320,263 km (0.114 R)
• M7: 2,693,061 km (0.065 R)
• M8: 3,171,774 km (0.076 R)
• M9: 4,523,092 km (0.062 R)
• M10: 5,049,826 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102.6

Radius: 13.8

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.3 AU - 2.16 AU

Year: 1493 Days

Day: 12.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 21,166,005 km

• M1: 171,589 km (0.059 R)
• M2: 605,722 km (0.109 R)
• M3: 1,115,551 km (0.057 R)
• M4: 1,894,956 km (0.065 R)
• M5: 3,264,974 km (0.097 R)
• M6: 3,928,590 km (0.093 R)
• M7: 5,615,904 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 132.5

Radius: 12.9

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 2.04 AU - 2.48 AU

Year: 2229 Days

Day: 10.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 21,166,005 km

• M1: 161,117 km (0.062 R)
• M2: 693,536 km (0.111 R)
• M3: 1,730,997 km (0.104 R)
• M4: 2,876,917 km (0.069 R)
• M5: 3,412,627 km (0.096 R)
• M6: 4,014,309 km (0.094 R)
• M7: 4,545,980 km (0.031 R)
• M8: 5,916,147 km (0.116 R)
• M9: 6,629,430 km (0.106 R)
• M10: 7,278,984 km (0.064 R)
• M11: 8,280,242 km (0.078 R)
• M12: 8,759,853 km (0.072 R)
• M13: 9,286,138 km (0.116 R)
• M14: 9,687,509 km (0.107 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.4

Radius: 8.8

Gravity: 10.43 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 2.44 AU - 2.7 AU

Year: 2703 Days

Day: 10.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 21,166,005 km

• M1: 109,954 km (0.107 R)
• M2: 396,883 km (0.094 R)
• M3: 706,850 km (0.114 R)
• M4: 1,193,342 km (0.079 R)
• M5: 1,497,923 km (0.03 R)
• M6: 1,842,597 km (0.05 R)
• M7: 2,119,203 km (0.087 R)
• M8: 2,409,124 km (0.081 R)
• M9: 2,869,886 km (0.11 R)
• M10: 3,612,789 km (0.075 R)
• M11: 5,079,446 km (0.102 R)
• M12: 5,707,308 km (0.092 R)
• M13: 6,301,810 km (0.074 R)
• M14: 6,847,843 km (0.049 R)
• M15: 7,519,088 km (0.11 R)
• M16: 9,722,515 km (0.111 R)
• M17: 10,140,342 km (0.088 R)
• M18: 10,649,573 km (0.087 R)
• M19: 13,224,153 km (0.072 R)
• M20: 13,502,554 km (0.119 R)
• M21: 14,507,852 km (0.067 R)
• M22: 18,219,824 km (0.116 R)
• M23: 20,789,317 km (0.113 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: 252 - 10,282 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit