🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939.7

Radius: 8.1

Gravity: 14.32 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.52 AU - 0.8 AU

Year: 370 Days

Day: 12.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 60,063,742 km

• M1: 100,679 km (0.115 R)
• M2: 354,248 km (0.082 R)
• M3: 823,087 km (0.104 R)
• M4: 1,427,014 km (0.105 R)
• M5: 2,061,010 km (0.106 R)
• M6: 2,881,105 km (0.053 R)
• M7: 3,401,257 km (0.099 R)
• M8: 3,798,888 km (0.062 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 367.4

Radius: 11.6

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.18 AU - 1.28 AU

Year: 942 Days

Day: 5.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,063,742 km

• M1: 146,307 km (0.097 R)
• M2: 585,526 km (0.116 R)
• M3: 1,157,738 km (0.054 R)
• M4: 1,688,810 km (0.112 R)
• M5: 2,114,267 km (0.099 R)
• M6: 2,882,901 km (0.083 R)
• M7: 3,744,285 km (0.12 R)
• M8: 6,168,967 km (0.074 R)
• M9: 7,082,562 km (0.102 R)
• M10: 7,732,714 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.8

Radius: 8.7

Gravity: 10.67 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.38 AU - 1.66 AU

Year: 1294 Days

Day: 8 Hours

Environment

Temp: -197 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,063,742 km

• M1: 108,309 km (0.112 R)
• M2: 414,984 km (0.084 R)
• M3: 764,146 km (0.107 R)
• M4: 1,059,751 km (0.095 R)
• M5: 1,872,816 km (0.119 R)
• M6: 2,486,915 km (0.047 R)
• M7: 3,199,150 km (0.117 R)
• M8: 3,750,718 km (0.03 R)
• M9: 4,129,051 km (0.047 R)
• M10: 5,187,456 km (0.118 R)
• M11: 5,614,109 km (0.109 R)
• M12: 7,885,453 km (0.079 R)
• M13: 9,947,810 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.9

Radius: 14.6

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.55 AU - 2.03 AU

Year: 1653 Days

Day: 7.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,063,742 km

• M1: 182,659 km (0.082 R)
• M2: 669,899 km (0.053 R)
• M3: 1,310,777 km (0.065 R)
• M4: 2,014,485 km (0.065 R)
• M5: 2,646,087 km (0.047 R)
• M6: 4,267,728 km (0.118 R)
• M7: 5,145,120 km (0.103 R)
• M8: 5,889,519 km (0.074 R)
• M9: 7,325,808 km (0.057 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723.5

Radius: 15

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 3.04 AU - 3.76 AU

Year: 4327 Days

Day: 10.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,063,742 km

• M1: 189,391 km (0.102 R)
• M2: 1,325,736 km (0.063 R)
• M3: 2,002,218 km (0.095 R)
• M4: 3,140,807 km (0.066 R)
• M5: 4,132,342 km (0.109 R)
• M6: 6,360,153 km (0.082 R)
• M7: 7,561,424 km (0.114 R)
• M8: 8,053,751 km (0.091 R)
• M9: 8,794,260 km (0.096 R)
• M10: 9,379,188 km (0.12 R)
• M11: 10,670,816 km (0.117 R)
• M12: 14,550,487 km (0.087 R)
• M13: 15,038,775 km (0.052 R)
• M14: 17,223,053 km (0.081 R)
• M15: 19,743,179 km (0.106 R)
• M16: 22,000,312 km (0.059 R)
• M17: 26,617,351 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 538.3

Radius: 12

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 2.74 AU - 4.24 AU

Year: 4500 Days

Day: 5.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,063,742 km

• M1: 150,495 km (0.115 R)
• M2: 562,488 km (0.094 R)
• M3: 1,256,622 km (0.069 R)
• M4: 2,231,402 km (0.07 R)
• M5: 2,987,619 km (0.05 R)
• M6: 3,495,205 km (0.094 R)
• M7: 4,516,958 km (0.051 R)
• M8: 5,059,250 km (0.086 R)
• M9: 5,480,518 km (0.045 R)
• M10: 6,793,539 km (0.112 R)
• M11: 8,127,652 km (0.085 R)
• M12: 9,122,329 km (0.107 R)
• M13: 10,572,680 km (0.101 R)
• M14: 14,810,339 km (0.073 R)
• M15: 15,954,314 km (0.112 R)
• M16: 17,629,959 km (0.082 R)
• M17: 20,789,766 km (0.091 R)
• M18: 22,292,775 km (0.06 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 237.4

Radius: 6.4

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 6.16 AU - 9.36 AU

Year: 14921 Days

Day: 18.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 60,063,742 km

• M1: 79,586 km (0.087 R)
• M2: 283,937 km (0.101 R)
• M3: 572,810 km (0.094 R)
• M4: 905,516 km (0.082 R)
• M5: 1,172,249 km (0.105 R)
• M6: 1,671,008 km (0.1 R)
• M7: 2,545,109 km (0.056 R)
• M8: 4,052,008 km (0.078 R)
• M9: 4,872,403 km (0.082 R)
• M10: 8,955,826 km (0.04 R)
• M11: 10,287,546 km (0.085 R)
• M12: 11,529,807 km (0.057 R)
• M13: 12,131,340 km (0.106 R)
• M14: 12,581,929 km (0.046 R)
• M15: 14,433,502 km (0.106 R)
• M16: 15,786,315 km (0.063 R)
• M17: 17,221,707 km (0.12 R)
• M18: 18,225,658 km (0.096 R)
• M19: 19,343,902 km (0.098 R)
• M20: 20,270,960 km (0.073 R)
• M21: 20,745,335 km (0.116 R)
• M22: 27,508,655 km (0.066 R)
• M23: 27,895,365 km (0.063 R)
• M24: 39,027,392 km (0.089 R)
• M25: 39,271,087 km (0.115 R)
• M26: 40,629,435 km (0.083 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 371.7

Radius: 6.9

Gravity: 7.81 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 7.11 AU - 11.15 AU

Year: 19042 Days

Day: 21.5 Hours

Environment

Temp: -241 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 60,063,742 km

• M1: 89,908 km (0.116 R)
• M2: 304,880 km (0.077 R)
• M3: 551,418 km (0.078 R)
• M4: 815,608 km (0.07 R)
• M5: 1,080,396 km (0.03 R)
• M6: 1,319,603 km (0.029 R)
• M7: 1,925,025 km (0.106 R)
• M8: 2,182,932 km (0.1 R)
• M9: 2,884,097 km (0.111 R)
• M10: 3,274,099 km (0.112 R)
• M11: 3,535,297 km (0.109 R)
• M12: 4,954,981 km (0.11 R)
• M13: 5,514,926 km (0.075 R)
• M14: 5,961,924 km (0.105 R)
• M15: 6,473,249 km (0.079 R)
• M16: 7,228,868 km (0.051 R)
• M17: 8,616,837 km (0.101 R)
• M18: 10,339,307 km (0.106 R)
• M19: 10,618,906 km (0.049 R)
• M20: 13,566,133 km (0.079 R)
• M21: 16,709,783 km (0.101 R)
• M22: 17,095,147 km (0.102 R)
• M23: 18,286,993 km (0.059 R)
• M24: 21,102,276 km (0.076 R)
• M25: 22,472,443 km (0.076 R)
• M26: 30,794,572 km (0.036 R)
• M27: 31,373,965 km (0.108 R)
• M28: 31,842,655 km (0.102 R)
• M29: 32,794,097 km (0.075 R)
• M30: 41,942,306 km (0.118 R)
• M31: 43,809,736 km (0.115 R)
• M32: 46,486,042 km (0.117 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 226 - 13,979 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit