🌌 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 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 718.3

Radius: 10.8

Gravity: 6.16 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.51 AU - 0.69 AU

Year: 321 Days

Day: 12.6 Hours

Environment

Temp: -157 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 23,934,240 km

• M1: 134,339 km (0.101 R)
• M2: 493,673 km (0.12 R)
• M3: 1,141,731 km (0.05 R)
• M4: 1,725,911 km (0.103 R)
• M5: 2,619,758 km (0.118 R)
• M6: 3,316,136 km (0.098 R)
• M7: 4,055,897 km (0.079 R)
• M8: 4,859,388 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.4

Radius: 13.1

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.55 AU - 0.79 AU

Year: 379 Days

Day: 9.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 23,934,240 km

• M1: 167,849 km (0.112 R)
• M2: 590,014 km (0.039 R)
• M3: 1,373,757 km (0.057 R)
• M4: 1,911,113 km (0.087 R)
• M5: 2,468,963 km (0.114 R)
• M6: 3,689,981 km (0.112 R)
• M7: 4,176,623 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351

Radius: 12.3

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.86 AU - 1.1 AU

Year: 670 Days

Day: 12.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 23,934,240 km

• M1: 153,039 km (0.098 R)
• M2: 553,961 km (0.105 R)
• M3: 1,077,105 km (0.086 R)
• M4: 1,472,941 km (0.108 R)
• M5: 1,984,565 km (0.12 R)
• M6: 2,371,425 km (0.115 R)
• M7: 2,851,784 km (0.098 R)
• M8: 5,545,743 km (0.089 R)
• M9: 6,015,779 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.7

Radius: 14.3

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.78 AU - 1.18 AU

Year: 670 Days

Day: 11.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 23,934,240 km

• M1: 177,872 km (0.073 R)
• M2: 660,026 km (0.063 R)
• M3: 1,415,495 km (0.118 R)
• M4: 1,918,742 km (0.081 R)
• M5: 2,510,103 km (0.05 R)
• M6: 3,094,731 km (0.056 R)
• M7: 3,669,486 km (0.077 R)
• M8: 4,299,144 km (0.102 R)
• M9: 4,895,740 km (0.087 R)
• M10: 5,566,238 km (0.082 R)
• M11: 6,256,333 km (0.07 R)
• M12: 6,783,665 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.8

Radius: 12.8

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.34 AU - 1.62 AU

Year: 1243 Days

Day: 6.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 23,934,240 km

• M1: 159,172 km (0.06 R)
• M2: 890,107 km (0.114 R)
• M3: 1,297,462 km (0.105 R)
• M4: 1,862,493 km (0.114 R)
• M5: 2,455,799 km (0.06 R)
• M6: 2,883,948 km (0.102 R)
• M7: 3,347,252 km (0.063 R)
• M8: 3,795,448 km (0.108 R)
• M9: 4,248,729 km (0.047 R)
• M10: 4,663,414 km (0.052 R)
• M11: 5,065,683 km (0.049 R)
• M12: 6,231,200 km (0.097 R)
• M13: 7,160,951 km (0.116 R)
• M14: 7,937,214 km (0.044 R)
• M15: 9,058,749 km (0.075 R)
• M16: 10,283,358 km (0.04 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163.9

Radius: 9.3

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.63 AU - 1.93 AU

Year: 1639 Days

Day: 11.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 23,934,240 km

• M1: 116,836 km (0.118 R)
• M2: 533,017 km (0.115 R)
• M3: 1,011,581 km (0.114 R)
• M4: 1,677,291 km (0.119 R)
• M5: 2,761,577 km (0.066 R)
• M6: 3,797,392 km (0.102 R)
• M7: 4,860,584 km (0.093 R)
• M8: 5,274,223 km (0.088 R)
• M9: 6,234,192 km (0.109 R)
• M10: 7,422,598 km (0.063 R)
• M11: 8,219,505 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.8

Radius: 14.6

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 3.78 AU - 6.16 AU

Year: 7648 Days

Day: 7.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 23,934,240 km

• M1: 181,612 km (0.056 R)
• M2: 638,783 km (0.087 R)
• M3: 1,123,330 km (0.056 R)
• M4: 1,866,981 km (0.034 R)
• M5: 3,079,921 km (0.106 R)
• M6: 3,638,370 km (0.118 R)
• M7: 4,176,623 km (0.12 R)
• M8: 5,389,562 km (0.096 R)
• M9: 8,973,479 km (0.116 R)
• M10: 10,983,326 km (0.081 R)
• M11: 12,618,580 km (0.097 R)
• M12: 13,616,249 km (0.068 R)
• M13: 14,159,588 km (0.036 R)
• M14: 17,210,337 km (0.084 R)
• M15: 18,497,178 km (0.082 R)
• M16: 19,102,900 km (0.106 R)
• M17: 20,482,342 km (0.082 R)
• M18: 23,721,136 km (0.106 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 310 - 17,959 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit