🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 856.7

Radius: 12.3

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.64 AU - 0.74 AU

Year: 382 Days

Day: 12.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 30,381,363 km

• M1: 153,039 km (0.074 R)
• M2: 597,195 km (0.114 R)
• M3: 1,002,605 km (0.073 R)
• M4: 1,506,451 km (0.101 R)
• M5: 2,093,622 km (0.1 R)
• M6: 2,503,221 km (0.115 R)
• M7: 2,966,675 km (0.084 R)
• M8: 3,910,937 km (0.117 R)
• M9: 4,684,358 km (0.1 R)
• M10: 5,092,312 km (0.104 R)
• M11: 5,474,983 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 92.7

Radius: 14.7

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.75 AU - 0.81 AU

Year: 459 Days

Day: 8.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 30,381,363 km

• M1: 182,809 km (0.074 R)
• M2: 834,756 km (0.092 R)
• M3: 1,339,649 km (0.1 R)
• M4: 2,621,403 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.1

Radius: 10.3

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.8 AU - 0.86 AU

Year: 504 Days

Day: 8.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 30,381,363 km

• M1: 128,205 km (0.096 R)
• M2: 465,100 km (0.1 R)
• M3: 930,050 km (0.083 R)
• M4: 1,620,145 km (0.08 R)
• M5: 1,940,434 km (0.085 R)
• M6: 2,303,658 km (0.079 R)
• M7: 2,632,773 km (0.085 R)
• M8: 3,259,738 km (0.071 R)
• M9: 5,732,890 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 432.5

Radius: 13

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.85 AU - 1.05 AU

Year: 617 Days

Day: 6.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 30,381,363 km

• M1: 161,715 km (0.119 R)
• M2: 609,312 km (0.117 R)
• M3: 1,352,215 km (0.092 R)
• M4: 1,929,513 km (0.049 R)
• M5: 2,846,099 km (0.11 R)
• M6: 3,900,016 km (0.101 R)
• M7: 4,313,954 km (0.054 R)
• M8: 4,788,029 km (0.114 R)
• M9: 5,496,974 km (0.039 R)
• M10: 6,073,823 km (0.058 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253

Radius: 14

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.08 AU - 1.26 AU

Year: 844 Days

Day: 6.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 30,381,363 km

• M1: 174,132 km (0.112 R)
• M2: 682,765 km (0.097 R)
• M3: 1,257,819 km (0.032 R)
• M4: 1,959,882 km (0.086 R)
• M5: 3,326,608 km (0.083 R)
• M6: 5,785,548 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.9

Radius: 11.8

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.32 AU - 1.5 AU

Year: 1116 Days

Day: 11.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 30,381,363 km

• M1: 146,756 km (0.1 R)
• M2: 630,555 km (0.05 R)
• M3: 1,227,899 km (0.097 R)
• M4: 2,195,050 km (0.113 R)
• M5: 2,589,090 km (0.077 R)
• M6: 2,976,100 km (0.09 R)
• M7: 3,446,735 km (0.1 R)
• M8: 4,413,137 km (0.046 R)
• M9: 4,854,900 km (0.089 R)
• M10: 5,614,857 km (0.119 R)
• M11: 6,853,228 km (0.09 R)
• M12: 8,431,037 km (0.102 R)
• M13: 8,997,564 km (0.066 R)
• M14: 9,499,016 km (0.068 R)
• M15: 9,956,935 km (0.115 R)
• M16: 10,785,558 km (0.082 R)
• M17: 11,250,508 km (0.085 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 722.9

Radius: 13.1

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.38 AU - 2.14 AU

Year: 1557 Days

Day: 6.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 30,381,363 km

• M1: 163,361 km (0.108 R)
• M2: 582,833 km (0.11 R)
• M3: 1,204,712 km (0.117 R)
• M4: 2,435,453 km (0.103 R)
• M5: 2,929,426 km (0.105 R)
• M6: 3,474,261 km (0.115 R)
• M7: 4,809,422 km (0.069 R)
• M8: 5,373,855 km (0.073 R)
• M9: 7,125,047 km (0.105 R)
• M10: 9,356,449 km (0.052 R)
• M11: 9,905,922 km (0.086 R)
• M12: 10,545,603 km (0.108 R)
• M13: 12,322,975 km (0.101 R)
• M14: 13,023,542 km (0.062 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.6

Radius: 8.9

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.89 AU - 2.51 AU

Year: 2176 Days

Day: 10.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 30,381,363 km

• M1: 118,332 km (0.082 R)
• M2: 487,240 km (0.089 R)
• M3: 1,085,333 km (0.111 R)
• M4: 1,732,493 km (0.11 R)
• M5: 2,114,865 km (0.095 R)
• M6: 3,137,666 km (0.059 R)
• M7: 3,995,011 km (0.089 R)
• M8: 5,142,427 km (0.101 R)
• M9: 5,983,017 km (0.095 R)
• M10: 10,018,569 km (0.084 R)
• M11: 11,535,941 km (0.097 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.2

Radius: 11.3

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 3.19 AU - 4.95 AU

Year: 5475 Days

Day: 13.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 30,381,363 km

• M1: 141,071 km (0.053 R)
• M2: 554,111 km (0.047 R)
• M3: 1,175,690 km (0.062 R)
• M4: 1,711,549 km (0.027 R)
• M5: 2,275,982 km (0.086 R)
• M6: 2,791,945 km (0.074 R)
• M7: 3,406,344 km (0.112 R)
• M8: 4,181,709 km (0.118 R)
• M9: 5,472,141 km (0.089 R)
• M10: 5,987,655 km (0.111 R)
• M11: 6,942,239 km (0.025 R)
• M12: 7,329,697 km (0.099 R)
• M13: 9,319,648 km (0.107 R)
• M14: 9,923,724 km (0.101 R)
• M15: 11,548,656 km (0.078 R)
• M16: 12,296,646 km (0.098 R)
• M17: 12,918,225 km (0.093 R)
• M18: 13,506,145 km (0.105 R)
• M19: 14,506,805 km (0.025 R)
• M20: 18,068,431 km (0.086 R)
• M21: 18,669,066 km (0.116 R)
• M22: 19,076,720 km (0.061 R)
• M23: 19,699,347 km (0.064 R)
• M24: 20,839,881 km (0.119 R)
• M25: 22,326,734 km (0.109 R)
• M26: 24,606,606 km (0.109 R)
• M27: 28,445,138 km (0.079 R)
• M28: 32,960,899 km (0.09 R)

Planet 10 - Gas Giant

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 299.2

Radius: 8.7

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 4.76 AU - 5.4 AU

Year: 7635 Days

Day: 6.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 30,381,363 km

• M1: 223,050 km (0.037 R)
• M2: 1,462,618 km (0.055 R)
• M3: 1,945,670 km (0.063 R)
• M4: 3,757,749 km (0.113 R)
• M5: 4,928,352 km (0.083 R)
• M6: 8,576,446 km (0.063 R)
• M7: 10,053,276 km (0.12 R)
• M8: 12,828,616 km (0.089 R)
• M9: 14,419,140 km (0.083 R)
• M10: 15,549,951 km (0.089 R)
• M11: 20,458,406 km (0.101 R)
• M12: 22,845,988 km (0.049 R)
• M13: 23,528,155 km (0.088 R)
• M14: 29,839,689 km (0.064 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: 325 - 14,046 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit