🌌 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: 125

Radius: 11.8

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.6 AU - 0.72 AU

Year: 358 Days

Day: 10.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 29,173,742 km

• M1: 146,756 km (0.06 R)
• M2: 708,047 km (0.079 R)
• M3: 1,129,314 km (0.082 R)
• M4: 1,587,832 km (0.034 R)
• M5: 1,974,243 km (0.09 R)
• M6: 2,650,874 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.6

Radius: 12.8

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.89 AU - 1.43 AU

Year: 833 Days

Day: 6.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 29,173,742 km

• M1: 161,566 km (0.112 R)
• M2: 607,816 km (0.076 R)
• M3: 1,364,183 km (0.064 R)
• M4: 1,845,589 km (0.054 R)
• M5: 2,631,726 km (0.097 R)
• M6: 3,201,245 km (0.079 R)
• M7: 3,822,076 km (0.071 R)
• M8: 4,488,535 km (0.119 R)
• M9: 5,231,138 km (0.058 R)
• M10: 6,283,709 km (0.106 R)
• M11: 7,214,208 km (0.075 R)
• M12: 7,688,583 km (0.085 R)
• M13: 8,439,414 km (0.077 R)
• M14: 8,966,597 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.4

Radius: 12.1

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.1 AU - 1.4 AU

Year: 932 Days

Day: 10.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 29,173,742 km

• M1: 157,826 km (0.091 R)
• M2: 619,784 km (0.078 R)
• M3: 1,009,636 km (0.078 R)
• M4: 1,763,161 km (0.091 R)
• M5: 2,167,673 km (0.084 R)
• M6: 2,982,982 km (0.085 R)
• M7: 3,846,161 km (0.051 R)
• M8: 4,392,193 km (0.111 R)
• M9: 6,721,881 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.4

Radius: 12.2

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.41 AU - 2.05 AU

Year: 1517 Days

Day: 5.5 Hours

Environment

Temp: -186 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 29,173,742 km

• M1: 151,842 km (0.119 R)
• M2: 667,655 km (0.051 R)
• M3: 1,327,980 km (0.116 R)
• M4: 1,833,771 km (0.043 R)
• M5: 2,565,304 km (0.091 R)
• M6: 3,013,500 km (0.088 R)
• M7: 3,482,938 km (0.09 R)
• M8: 3,984,390 km (0.104 R)
• M9: 4,441,710 km (0.118 R)
• M10: 4,914,440 km (0.082 R)
• M11: 5,420,679 km (0.036 R)
• M12: 6,187,966 km (0.062 R)
• M13: 7,408,236 km (0.083 R)
• M14: 8,297,446 km (0.116 R)
• M15: 10,483,669 km (0.087 R)
• M16: 11,429,577 km (0.102 R)
• M17: 11,995,056 km (0.115 R)
• M18: 12,394,632 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239

Radius: 13.7

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.76 AU - 1.96 AU

Year: 1692 Days

Day: 5.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 29,173,742 km

• M1: 174,132 km (0.112 R)
• M2: 613,052 km (0.099 R)
• M3: 1,083,089 km (0.117 R)
• M4: 1,573,171 km (0.12 R)
• M5: 2,601,357 km (0.061 R)
• M6: 3,223,385 km (0.094 R)
• M7: 3,849,752 km (0.065 R)
• M8: 5,156,190 km (0.086 R)
• M9: 6,448,416 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 303.1

Radius: 14.4

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 2.41 AU - 3.59 AU

Year: 3465 Days

Day: 5.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 29,173,742 km

• M1: 179,517 km (0.101 R)
• M2: 731,384 km (0.064 R)
• M3: 1,577,809 km (0.098 R)
• M4: 2,091,079 km (0.029 R)
• M5: 3,098,920 km (0.08 R)
• M6: 3,588,404 km (0.053 R)
• M7: 4,555,554 km (0.08 R)
• M8: 5,763,856 km (0.09 R)
• M9: 6,219,980 km (0.068 R)
• M10: 8,483,396 km (0.062 R)
• M11: 9,836,808 km (0.031 R)
• M12: 10,866,789 km (0.06 R)
• M13: 11,447,528 km (0.081 R)
• M14: 12,048,912 km (0.066 R)
• M15: 13,578,700 km (0.058 R)
• M16: 14,902,491 km (0.118 R)
• M17: 15,668,881 km (0.077 R)
• M18: 16,562,279 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212.2

Radius: 13.6

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 5.25 AU - 5.69 AU

Year: 8531 Days

Day: 10.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 103.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 29,173,742 km

• M1: 169,195 km (0.102 R)
• M2: 627,862 km (0.112 R)
• M3: 1,614,610 km (0.081 R)
• M4: 2,168,122 km (0.042 R)
• M5: 3,066,607 km (0.091 R)
• M6: 4,223,896 km (0.071 R)
• M7: 7,352,735 km (0.113 R)
• M8: 9,049,774 km (0.091 R)
• M9: 11,222,084 km (0.061 R)
• M10: 13,307,778 km (0.098 R)
• M11: 14,361,246 km (0.099 R)
• M12: 16,753,615 km (0.097 R)
• M13: 19,137,308 km (0.11 R)
• M14: 20,137,818 km (0.113 R)
• M15: 23,274,138 km (0.1 R)
• M16: 24,336,881 km (0.115 R)
• M17: 25,194,376 km (0.09 R)
• M18: 26,395,946 km (0.088 R)
• M19: 27,301,312 km (0.081 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 435 - 17,029 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit