🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 665.3

Radius: 9.6

Gravity: 7.22 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.63 AU - 0.83 AU

Year: 403 Days

Day: 8.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 32,302,483 km

• M1: 119,379 km (0.054 R)
• M2: 430,842 km (0.119 R)
• M3: 864,825 km (0.078 R)
• M4: 1,178,682 km (0.091 R)
• M5: 1,484,011 km (0.071 R)
• M6: 1,975,440 km (0.05 R)
• M7: 2,348,986 km (0.104 R)
• M8: 3,063,016 km (0.076 R)
• M9: 3,388,990 km (0.111 R)
• M10: 3,825,966 km (0.066 R)
• M11: 4,124,712 km (0.106 R)
• M12: 5,146,915 km (0.085 R)
• M13: 5,479,471 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 941.8

Radius: 13.1

Gravity: 5.49 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.85 AU - 1.05 AU

Year: 598 Days

Day: 6.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,302,483 km

• M1: 171,140 km (0.061 R)
• M2: 622,178 km (0.048 R)
• M3: 1,046,138 km (0.077 R)
• M4: 1,845,290 km (0.109 R)
• M5: 2,376,512 km (0.087 R)
• M6: 3,696,563 km (0.062 R)
• M7: 4,190,984 km (0.119 R)
• M8: 4,712,931 km (0.103 R)
• M9: 5,172,197 km (0.067 R)
• M10: 6,967,072 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 677.3

Radius: 13.7

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.84 AU - 1.17 AU

Year: 646 Days

Day: 13.4 Hours

Environment

Temp: -167 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 32,302,483 km

• M1: 170,542 km (0.093 R)
• M2: 629,957 km (0.106 R)
• M3: 1,301,950 km (0.091 R)
• M4: 1,944,174 km (0.112 R)
• M5: 2,748,113 km (0.113 R)
• M6: 3,587,955 km (0.117 R)
• M7: 4,344,322 km (0.039 R)
• M8: 4,834,704 km (0.107 R)
• M9: 5,540,058 km (0.055 R)
• M10: 6,573,031 km (0.079 R)
• M11: 7,157,361 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.8

Radius: 12.3

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.99 AU - 1.35 AU

Year: 817 Days

Day: 10 Hours

Environment

Temp: -175 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 32,302,483 km

• M1: 153,188 km (0.064 R)
• M2: 541,245 km (0.086 R)
• M3: 1,093,560 km (0.065 R)
• M4: 1,607,728 km (0.091 R)
• M5: 2,325,798 km (0.102 R)
• M6: 3,621,465 km (0.106 R)
• M7: 4,469,835 km (0.059 R)
• M8: 4,919,077 km (0.11 R)
• M9: 5,494,730 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.8

Radius: 11

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.37 AU - 1.57 AU

Year: 1151 Days

Day: 12.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 32,302,483 km

• M1: 137,032 km (0.096 R)
• M2: 671,395 km (0.111 R)
• M3: 1,294,321 km (0.055 R)
• M4: 1,820,008 km (0.105 R)
• M5: 2,394,763 km (0.105 R)
• M6: 2,744,074 km (0.079 R)
• M7: 3,831,650 km (0.097 R)
• M8: 6,433,307 km (0.078 R)
• M9: 9,397,140 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 100.6

Radius: 10.4

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 4.32 AU - 6.5 AU

Year: 8125 Days

Day: 12.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 32,302,483 km

• M1: 140,173 km (0.099 R)
• M2: 546,032 km (0.072 R)
• M3: 923,168 km (0.114 R)
• M4: 1,417,889 km (0.082 R)
• M5: 2,246,212 km (0.066 R)
• M6: 5,975,986 km (0.036 R)
• M7: 7,541,528 km (0.099 R)
• M8: 8,368,056 km (0.083 R)
• M9: 10,840,311 km (0.113 R)
• M10: 12,600,778 km (0.085 R)
• M11: 14,494,538 km (0.11 R)
• M12: 16,193,970 km (0.093 R)
• M13: 20,231,915 km (0.102 R)
• M14: 20,669,339 km (0.056 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 314.1

Radius: 10.9

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 4.57 AU - 6.29 AU

Year: 8170 Days

Day: 8 Hours

Environment

Temp: -221 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,302,483 km

• M1: 137,181 km (0.072 R)
• M2: 511,774 km (0.102 R)
• M3: 1,093,860 km (0.05 R)
• M4: 1,971,251 km (0.115 R)
• M5: 2,838,470 km (0.118 R)
• M6: 4,427,648 km (0.078 R)
• M7: 5,061,345 km (0.116 R)
• M8: 5,754,432 km (0.117 R)
• M9: 10,794,833 km (0.08 R)
• M10: 11,795,044 km (0.109 R)
• M11: 12,700,560 km (0.1 R)
• M12: 14,367,828 km (0.032 R)
• M13: 15,108,787 km (0.093 R)
• M14: 16,481,796 km (0.071 R)
• M15: 17,936,336 km (0.082 R)
• M16: 19,337,470 km (0.059 R)
• M17: 20,738,603 km (0.077 R)
• M18: 21,099,134 km (0.101 R)
• M19: 24,696,664 km (0.103 R)
• M20: 27,109,528 km (0.107 R)
• M21: 28,064,561 km (0.116 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: 512 - 17,774 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit