🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.7

Radius: 14.9

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.69 AU - 1.01 AU

Year: 498 Days

Day: 8.1 Hours

Environment

Temp: -146 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 15,770,222 km

• M1: 185,352 km (0.091 R)
• M2: 699,669 km (0.102 R)
• M3: 1,166,415 km (0.059 R)
• M4: 1,702,573 km (0.05 R)
• M5: 2,550,045 km (0.119 R)
• M6: 4,243,344 km (0.118 R)
• M7: 4,757,960 km (0.115 R)
• M8: 5,464,361 km (0.025 R)
• M9: 6,388,876 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387.9

Radius: 13.2

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.66 AU - 1.08 AU

Year: 516 Days

Day: 14.2 Hours

Environment

Temp: -154 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 15,770,222 km

• M1: 166,802 km (0.114 R)
• M2: 600,037 km (0.049 R)
• M3: 2,096,764 km (0.096 R)
• M4: 3,847,508 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.5

Radius: 9.6

Gravity: 8.09 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 2.22 AU - 2.72 AU

Year: 2468 Days

Day: 9.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 15,770,222 km

• M1: 119,379 km (0.109 R)
• M2: 775,216 km (0.112 R)
• M3: 1,371,962 km (0.107 R)
• M4: 1,996,084 km (0.107 R)
• M5: 2,443,681 km (0.061 R)
• M6: 2,877,665 km (0.083 R)
• M7: 4,263,240 km (0.092 R)
• M8: 6,371,074 km (0.081 R)
• M9: 6,904,241 km (0.105 R)
• M10: 8,156,226 km (0.097 R)
• M11: 8,516,607 km (0.071 R)
• M12: 9,163,917 km (0.082 R)
• M13: 10,403,934 km (0.082 R)
• M14: 11,024,765 km (0.094 R)
• M15: 12,685,002 km (0.106 R)
• M16: 13,213,980 km (0.101 R)
• M17: 13,895,847 km (0.119 R)
• M18: 14,316,067 km (0.068 R)
• M19: 15,728,271 km (0.088 R)
• M20: 16,031,656 km (0.048 R)
• M21: 16,494,063 km (0.078 R)
• M22: 16,859,979 km (0.059 R)
• M23: 18,433,450 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 59.8

Radius: 14.4

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 2.72 AU - 2.88 AU

Year: 2979 Days

Day: 5.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 15,770,222 km

• M1: 179,069 km (0.11 R)
• M2: 658,081 km (0.084 R)
• M3: 1,420,731 km (0.096 R)
• M4: 1,994,738 km (0.108 R)
• M5: 2,652,969 km (0.091 R)
• M6: 3,130,934 km (0.089 R)
• M7: 4,089,108 km (0.077 R)
• M8: 5,161,127 km (0.112 R)
• M9: 5,635,651 km (0.119 R)
• M10: 6,563,906 km (0.104 R)
• M11: 7,076,428 km (0.109 R)
• M12: 7,858,825 km (0.088 R)
• M13: 9,018,059 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615.6

Radius: 14.1

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 2.31 AU - 3.77 AU

Year: 3370 Days

Day: 7.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 15,770,222 km

• M1: 175,478 km (0.087 R)
• M2: 1,025,942 km (0.071 R)
• M3: 1,857,557 km (0.032 R)
• M4: 2,395,660 km (0.098 R)
• M5: 3,228,920 km (0.072 R)
• M6: 5,345,132 km (0.066 R)
• M7: 7,319,076 km (0.09 R)
• M8: 8,892,696 km (0.116 R)
• M9: 10,008,995 km (0.077 R)
• M10: 12,340,328 km (0.066 R)
• M11: 14,460,429 km (0.118 R)
• M12: 16,323,820 km (0.049 R)
• M13: 17,595,253 km (0.078 R)
• M14: 18,168,213 km (0.057 R)
• M15: 18,635,556 km (0.118 R)
• M16: 20,522,733 km (0.087 R)
• M17: 21,806,134 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.5

Radius: 9

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 3.46 AU - 3.74 AU

Year: 4343 Days

Day: 12.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 15,770,222 km

• M1: 112,049 km (0.104 R)
• M2: 989,141 km (0.112 R)
• M3: 1,916,199 km (0.114 R)
• M4: 2,217,639 km (0.088 R)
• M5: 4,684,807 km (0.057 R)
• M6: 6,418,197 km (0.104 R)
• M7: 7,308,305 km (0.053 R)
• M8: 10,020,664 km (0.091 R)
• M9: 14,689,165 km (0.109 R)
• M10: 16,024,026 km (0.065 R)
• M11: 16,486,433 km (0.103 R)
• M12: 18,258,570 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.9

Radius: 14.2

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 5.34 AU - 5.5 AU

Year: 8023 Days

Day: 13.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 15,770,222 km

• M1: 178,919 km (0.093 R)
• M2: 1,212,491 km (0.032 R)
• M3: 3,379,266 km (0.064 R)
• M4: 4,972,334 km (0.091 R)
• M5: 12,598,385 km (0.088 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 160 - 15,438 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit