🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740.7

Radius: 9.2

Gravity: 8.75 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.55 AU - 0.83 AU

Year: 376 Days

Day: 9.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 34,546,901 km

• M1: 122,221 km (0.047 R)
• M2: 427,850 km (0.086 R)
• M3: 831,764 km (0.034 R)
• M4: 1,224,907 km (0.059 R)
• M5: 1,565,392 km (0.119 R)
• M6: 2,157,949 km (0.037 R)
• M7: 4,491,975 km (0.119 R)
• M8: 4,809,272 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.4

Radius: 12.1

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.83 AU - 0.93 AU

Year: 542 Days

Day: 5.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 34,546,901 km

• M1: 150,495 km (0.07 R)
• M2: 658,231 km (0.099 R)
• M3: 1,329,626 km (0.107 R)
• M4: 1,783,655 km (0.049 R)
• M5: 2,207,167 km (0.084 R)
• M6: 3,284,870 km (0.081 R)
• M7: 3,684,296 km (0.071 R)
• M8: 4,239,903 km (0.111 R)
• M9: 4,989,239 km (0.117 R)
• M10: 5,453,590 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.4

Radius: 10.7

Gravity: 5.51 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.13 AU - 1.15 AU

Year: 798 Days

Day: 7.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 34,546,901 km

• M1: 133,142 km (0.064 R)
• M2: 626,516 km (0.097 R)
• M3: 977,921 km (0.072 R)
• M4: 1,329,925 km (0.082 R)
• M5: 1,717,832 km (0.086 R)
• M6: 2,093,921 km (0.067 R)
• M7: 2,670,472 km (0.078 R)
• M8: 3,499,244 km (0.118 R)
• M9: 4,080,132 km (0.074 R)
• M10: 4,573,656 km (0.085 R)
• M11: 5,738,425 km (0.076 R)
• M12: 6,957,947 km (0.117 R)
• M13: 7,854,038 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 406.1

Radius: 14.2

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.71 AU - 2.69 AU

Year: 2141 Days

Day: 12.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 34,546,901 km

• M1: 182,809 km (0.047 R)
• M2: 683,513 km (0.119 R)
• M3: 1,413,999 km (0.086 R)
• M4: 2,583,555 km (0.11 R)
• M5: 4,249,926 km (0.104 R)
• M6: 4,711,286 km (0.119 R)
• M7: 5,577,906 km (0.035 R)
• M8: 6,449,164 km (0.117 R)
• M9: 7,114,276 km (0.117 R)
• M10: 8,197,515 km (0.116 R)
• M11: 9,581,295 km (0.069 R)
• M12: 14,324,146 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 709.3

Radius: 13.9

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 2.28 AU - 2.56 AU

Year: 2470 Days

Day: 13.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 34,546,901 km

• M1: 172,935 km (0.107 R)
• M2: 736,321 km (0.084 R)
• M3: 1,534,575 km (0.114 R)
• M4: 2,124,290 km (0.06 R)
• M5: 2,832,486 km (0.058 R)
• M6: 3,423,996 km (0.114 R)
• M7: 4,217,912 km (0.045 R)
• M8: 4,702,759 km (0.064 R)
• M9: 5,343,636 km (0.071 R)
• M10: 6,173,156 km (0.042 R)
• M11: 8,542,038 km (0.11 R)
• M12: 9,322,939 km (0.069 R)
• M13: 9,930,456 km (0.103 R)
• M14: 10,910,472 km (0.12 R)
• M15: 11,789,359 km (0.111 R)
• M16: 15,783,623 km (0.081 R)
• M17: 16,960,359 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 992.9

Radius: 13.5

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 2.62 AU - 3.44 AU

Year: 3460 Days

Day: 7.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 34,546,901 km

• M1: 168,746 km (0.081 R)
• M2: 598,092 km (0.087 R)
• M3: 1,131,409 km (0.091 R)
• M4: 1,817,764 km (0.076 R)
• M5: 2,400,298 km (0.099 R)
• M6: 2,961,589 km (0.12 R)
• M7: 3,733,664 km (0.094 R)
• M8: 4,808,674 km (0.098 R)
• M9: 5,596,606 km (0.031 R)
• M10: 7,396,867 km (0.059 R)
• M11: 7,840,724 km (0.091 R)
• M12: 8,707,194 km (0.084 R)
• M13: 9,878,995 km (0.06 R)
• M14: 11,738,646 km (0.087 R)
• M15: 12,824,128 km (0.076 R)
• M16: 14,602,996 km (0.088 R)
• M17: 17,303,238 km (0.085 R)
• M18: 18,708,411 km (0.079 R)
• M19: 19,991,063 km (0.091 R)
• M20: 23,746,717 km (0.062 R)
• M21: 24,641,013 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 228.4

Radius: 3.9

Gravity: 15.02 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 6.38 AU - 6.4 AU

Year: 10596 Days

Day: 19.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 34,546,901 km

• M1: 52,060 km (0.088 R)
• M2: 187,147 km (0.083 R)
• M3: 457,321 km (0.049 R)
• M4: 1,116,599 km (0.099 R)
• M5: 1,254,827 km (0.112 R)
• M6: 1,867,729 km (0.113 R)
• M7: 2,987,170 km (0.101 R)
• M8: 5,420,679 km (0.094 R)
• M9: 7,763,980 km (0.099 R)
• M10: 8,430,588 km (0.117 R)
• M11: 10,424,279 km (0.113 R)
• M12: 14,602,547 km (0.1 R)
• M13: 15,312,389 km (0.073 R)
• M14: 20,132,881 km (0.082 R)
• M15: 24,286,915 km (0.106 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 380 - 19,225 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit