🌌 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 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.8

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.54 AU - 0.66 AU

Year: 305 Days

Day: 30.7 Hours

Environment

Temp: -122 °C

Axial Tilt: 25.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.66

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.47 AU - 0.75 AU

Year: 313 Days

Day: 22.4 Hours

Environment

Temp: -130 °C

Axial Tilt: 25 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 59,843,139 km

• M1: 287,527 km (0.055 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885.7

Radius: 9.2

Gravity: 10.46 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.66 AU - 0.7 AU

Year: 368 Days

Day: 12.9 Hours

Environment

Temp: -137 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 59,843,139 km

• M1: 117,135 km (0.072 R)
• M2: 417,827 km (0.118 R)
• M3: 780,452 km (0.069 R)
• M4: 1,098,048 km (0.087 R)
• M5: 2,089,733 km (0.054 R)
• M6: 2,639,056 km (0.096 R)
• M7: 2,927,032 km (0.061 R)
• M8: 3,494,008 km (0.059 R)
• M9: 4,214,172 km (0.066 R)
• M10: 4,846,821 km (0.071 R)
• M11: 5,345,581 km (0.03 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 709

Radius: 12.8

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.55 AU - 2.57 AU

Year: 1940 Days

Day: 7 Hours

Environment

Temp: -200 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 59,843,139 km

• M1: 160,668 km (0.114 R)
• M2: 721,660 km (0.064 R)
• M3: 1,128,267 km (0.036 R)
• M4: 1,538,913 km (0.045 R)
• M5: 2,017,327 km (0.105 R)
• M6: 2,513,843 km (0.117 R)
• M7: 3,792,755 km (0.106 R)
• M8: 4,435,876 km (0.104 R)
• M9: 5,796,170 km (0.064 R)
• M10: 6,366,137 km (0.098 R)
• M11: 6,811,191 km (0.09 R)
• M12: 8,211,876 km (0.076 R)
• M13: 9,225,401 km (0.104 R)
• M14: 9,865,531 km (0.119 R)
• M15: 10,284,854 km (0.109 R)
• M16: 10,752,646 km (0.114 R)
• M17: 13,435,983 km (0.101 R)
• M18: 13,951,946 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210.3

Radius: 9.9

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 3.01 AU - 3.33 AU

Year: 3703 Days

Day: 14 Hours

Environment

Temp: -204 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 59,843,139 km

• M1: 123,119 km (0.119 R)
• M2: 438,172 km (0.056 R)
• M3: 1,457,382 km (0.1 R)
• M4: 1,819,559 km (0.068 R)
• M5: 2,191,908 km (0.072 R)
• M6: 3,626,851 km (0.116 R)
• M7: 4,029,419 km (0.09 R)
• M8: 4,710,239 km (0.027 R)
• M9: 5,751,290 km (0.105 R)
• M10: 6,351,926 km (0.087 R)
• M11: 6,802,365 km (0.062 R)
• M12: 8,313,902 km (0.031 R)
• M13: 8,951,039 km (0.073 R)
• M14: 9,382,479 km (0.117 R)
• M15: 9,862,389 km (0.118 R)
• M16: 12,309,062 km (0.079 R)
• M17: 13,825,386 km (0.113 R)
• M18: 14,628,577 km (0.081 R)
• M19: 14,949,166 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202.7

Radius: 8.9

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 4.62 AU - 6.44 AU

Year: 8531 Days

Day: 7.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,843,139 km

• M1: 110,702 km (0.03 R)
• M2: 1,255,575 km (0.104 R)
• M3: 2,083,300 km (0.114 R)
• M4: 2,499,182 km (0.117 R)
• M5: 5,523,303 km (0.106 R)
• M6: 6,078,909 km (0.098 R)
• M7: 12,330,455 km (0.109 R)
• M8: 15,604,105 km (0.087 R)
• M9: 16,593,994 km (0.072 R)
• M10: 21,324,728 km (0.09 R)
• M11: 25,038,644 km (0.086 R)
• M12: 27,881,004 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 872.8

Radius: 6.2

Gravity: 22.71 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 6.8 AU - 7.36 AU

Year: 12358 Days

Day: 24.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 59,843,139 km

• M1: 77,641 km (0.102 R)
• M2: 308,321 km (0.087 R)
• M3: 607,218 km (0.108 R)
• M4: 1,202,019 km (0.043 R)
• M5: 1,431,652 km (0.034 R)
• M6: 1,909,766 km (0.08 R)
• M7: 2,166,925 km (0.102 R)
• M8: 4,410,893 km (0.096 R)
• M9: 5,379,390 km (0.081 R)
• M10: 5,932,453 km (0.097 R)
• M11: 10,405,130 km (0.115 R)
• M12: 10,742,623 km (0.075 R)
• M13: 13,051,217 km (0.095 R)
• M14: 14,528,796 km (0.118 R)
• M15: 15,235,945 km (0.106 R)
• M16: 15,744,428 km (0.032 R)
• M17: 16,189,182 km (0.1 R)
• M18: 17,573,860 km (0.114 R)
• M19: 19,119,206 km (0.103 R)
• M20: 20,576,888 km (0.071 R)
• M21: 23,327,095 km (0.104 R)
• M22: 24,591,496 km (0.074 R)
• M23: 28,988,178 km (0.105 R)
• M24: 29,432,334 km (0.058 R)
• M25: 29,881,127 km (0.086 R)
• M26: 36,780,880 km (0.093 R)
• M27: 37,827,018 km (0.119 R)
• M28: 39,027,541 km (0.091 R)
• M29: 43,646,525 km (0.104 R)
• M30: 46,464,650 km (0.072 R)
• M31: 47,379,142 km (0.078 R)
• M32: 52,460,084 km (0.116 R)
• M33: 53,617,971 km (0.115 R)
• M34: 56,500,722 km (0.101 R)
• M35: 59,843,187 km (0.066 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: 270 - 11,109 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit