🌌 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: 3.06

Radius: 1.56

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.55 AU - 0.65 AU

Year: 296 Days

Day: 47 Hours

Environment

Temp: -121 °C

Axial Tilt: 25.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.5

Radius: 13.7

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.72 AU - 1 AU

Year: 507 Days

Day: 5.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,996,500 km

• M1: 170,392 km (0.098 R)
• M2: 623,225 km (0.107 R)
• M3: 1,437,935 km (0.084 R)
• M4: 1,891,366 km (0.051 R)
• M5: 2,433,658 km (0.112 R)
• M6: 2,957,999 km (0.047 R)
• M7: 3,433,570 km (0.094 R)
• M8: 3,859,625 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.1

Radius: 8.1

Gravity: 11.11 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.13 AU - 1.23 AU

Year: 815 Days

Day: 7.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 55,996,500 km

• M1: 100,679 km (0.074 R)
• M2: 401,670 km (0.044 R)
• M3: 746,344 km (0.06 R)
• M4: 1,164,619 km (0.114 R)
• M5: 1,494,034 km (0.085 R)
• M6: 1,785,750 km (0.066 R)
• M7: 2,046,499 km (0.117 R)
• M8: 2,430,517 km (0.09 R)
• M9: 2,728,516 km (0.117 R)
• M10: 4,032,261 km (0.071 R)
• M11: 4,418,672 km (0.063 R)
• M12: 5,026,339 km (0.114 R)
• M13: 5,378,941 km (0.12 R)
• M14: 5,969,254 km (0.07 R)
• M15: 6,301,362 km (0.113 R)
• M16: 6,711,708 km (0.105 R)
• M17: 8,000,793 km (0.039 R)
• M18: 9,009,831 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.4

Radius: 13.8

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.45 AU - 1.57 AU

Year: 1180 Days

Day: 8.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,996,500 km

• M1: 171,589 km (0.058 R)
• M2: 967,150 km (0.111 R)
• M3: 1,397,244 km (0.091 R)
• M4: 2,009,847 km (0.033 R)
• M5: 2,798,527 km (0.034 R)
• M6: 3,345,158 km (0.053 R)
• M7: 4,935,832 km (0.052 R)
• M8: 5,781,958 km (0.088 R)
• M9: 6,375,412 km (0.082 R)
• M10: 7,379,663 km (0.113 R)
• M11: 7,920,010 km (0.039 R)
• M12: 9,022,846 km (0.12 R)
• M13: 9,491,686 km (0.097 R)
• M14: 10,256,879 km (0.063 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 993.5

Radius: 12.4

Gravity: 6.46 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.7 AU - 2.34 AU

Year: 1825 Days

Day: 7.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 55,996,500 km

• M1: 154,385 km (0.051 R)
• M2: 576,251 km (0.107 R)
• M3: 1,045,091 km (0.102 R)
• M4: 1,638,396 km (0.119 R)
• M5: 2,104,094 km (0.104 R)
• M6: 2,504,268 km (0.092 R)
• M7: 3,033,396 km (0.109 R)
• M8: 3,690,280 km (0.093 R)
• M9: 5,312,520 km (0.057 R)
• M10: 6,064,548 km (0.098 R)
• M11: 6,721,582 km (0.069 R)
• M12: 8,948,197 km (0.116 R)
• M13: 9,871,365 km (0.065 R)
• M14: 11,510,509 km (0.096 R)
• M15: 11,907,093 km (0.107 R)
• M16: 12,353,942 km (0.082 R)
• M17: 13,717,676 km (0.05 R)
• M18: 14,991,352 km (0.114 R)
• M19: 16,441,853 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261.6

Radius: 11.1

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.97 AU - 2.99 AU

Year: 2483 Days

Day: 8.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,996,500 km

• M1: 138,079 km (0.117 R)
• M2: 516,412 km (0.061 R)
• M3: 884,423 km (0.027 R)
• M4: 1,699,282 km (0.083 R)
• M5: 2,413,313 km (0.114 R)
• M6: 2,846,997 km (0.059 R)
• M7: 3,317,183 km (0.056 R)
• M8: 4,664,611 km (0.03 R)
• M9: 6,061,556 km (0.054 R)
• M10: 6,542,962 km (0.115 R)
• M11: 8,971,384 km (0.072 R)
• M12: 10,053,127 km (0.067 R)
• M13: 11,652,477 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 330.5

Radius: 6.5

Gravity: 7.82 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 8.17 AU - 10.53 AU

Year: 18178 Days

Day: 21.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 55,996,500 km

• M1: 87,365 km (0.102 R)
• M2: 495,468 km (0.12 R)
• M3: 965,056 km (0.067 R)
• M4: 1,218,475 km (0.116 R)
• M5: 1,811,929 km (0.07 R)
• M6: 2,201,931 km (0.099 R)
• M7: 2,959,345 km (0.071 R)
• M8: 3,173,270 km (0.115 R)
• M9: 4,843,979 km (0.12 R)
• M10: 7,943,049 km (0.038 R)
• M11: 9,743,609 km (0.101 R)
• M12: 11,564,813 km (0.037 R)
• M13: 13,087,271 km (0.074 R)
• M14: 14,129,070 km (0.071 R)
• M15: 14,465,665 km (0.089 R)
• M16: 14,876,611 km (0.056 R)
• M17: 15,865,901 km (0.083 R)
• M18: 17,585,080 km (0.102 R)
• M19: 18,290,434 km (0.092 R)
• M20: 19,424,835 km (0.081 R)
• M21: 21,477,318 km (0.064 R)
• M22: 23,670,273 km (0.062 R)
• M23: 30,462,016 km (0.063 R)
• M24: 31,822,160 km (0.094 R)
• M25: 33,104,064 km (0.113 R)
• M26: 37,155,922 km (0.118 R)
• M27: 37,411,735 km (0.093 R)
• M28: 42,356,393 km (0.074 R)
• M29: 46,375,490 km (0.056 R)
• M30: 47,268,589 km (0.082 R)
• M31: 55,328,174 km (0.078 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 440 - 17,068 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit