🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 422.3

Radius: 12.1

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.67 AU - 0.85 AU

Year: 435 Days

Day: 10.5 Hours

Environment

Temp: -141 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 22,480,665 km

• M1: 150,495 km (0.101 R)
• M2: 611,406 km (0.106 R)
• M3: 1,037,611 km (0.101 R)
• M4: 1,569,880 km (0.045 R)
• M5: 2,038,121 km (0.09 R)
• M6: 2,508,158 km (0.109 R)
• M7: 2,978,494 km (0.062 R)
• M8: 3,428,185 km (0.092 R)
• M9: 3,849,602 km (0.085 R)
• M10: 4,629,605 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 166.8

Radius: 9.7

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.91 AU - 1.03 AU

Year: 627 Days

Day: 9.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 22,480,665 km

• M1: 121,473 km (0.034 R)
• M2: 607,667 km (0.113 R)
• M3: 1,217,427 km (0.067 R)
• M4: 1,599,800 km (0.077 R)
• M5: 1,940,434 km (0.075 R)
• M6: 2,602,704 km (0.066 R)
• M7: 3,224,732 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568

Radius: 13.3

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.83 AU - 1.23 AU

Year: 686 Days

Day: 14.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 22,480,665 km

• M1: 165,605 km (0.096 R)
• M2: 589,864 km (0.104 R)
• M3: 1,179,130 km (0.086 R)
• M4: 1,704,219 km (0.076 R)
• M5: 2,345,246 km (0.099 R)
• M6: 3,873,089 km (0.118 R)
• M7: 4,586,072 km (0.083 R)
• M8: 6,817,175 km (0.093 R)
• M9: 7,260,433 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569.4

Radius: 11.7

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.26 AU - 1.4 AU

Year: 1006 Days

Day: 12.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 22,480,665 km

• M1: 145,559 km (0.113 R)
• M2: 536,458 km (0.118 R)
• M3: 958,025 km (0.107 R)
• M4: 1,442,123 km (0.119 R)
• M5: 1,859,502 km (0.047 R)
• M6: 3,496,551 km (0.089 R)
• M7: 4,037,497 km (0.092 R)
• M8: 5,383,130 km (0.115 R)
• M9: 6,064,698 km (0.095 R)
• M10: 6,780,224 km (0.106 R)
• M11: 7,407,039 km (0.072 R)
• M12: 7,870,942 km (0.036 R)
• M13: 8,328,113 km (0.041 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842.2

Radius: 12.5

Gravity: 5.39 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.92 AU - 2.06 AU

Year: 1842 Days

Day: 13.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 22,480,665 km

• M1: 156,629 km (0.113 R)
• M2: 595,549 km (0.113 R)
• M3: 1,201,420 km (0.059 R)
• M4: 1,706,463 km (0.104 R)
• M5: 2,648,780 km (0.064 R)
• M6: 3,156,964 km (0.052 R)
• M7: 3,694,319 km (0.084 R)
• M8: 4,371,549 km (0.116 R)
• M9: 4,889,307 km (0.074 R)
• M10: 5,851,820 km (0.091 R)
• M11: 6,456,195 km (0.09 R)
• M12: 7,469,571 km (0.05 R)
• M13: 8,120,621 km (0.055 R)
• M14: 10,303,404 km (0.107 R)
• M15: 10,738,734 km (0.092 R)
• M16: 12,159,165 km (0.117 R)
• M17: 12,810,814 km (0.069 R)
• M18: 14,095,411 km (0.092 R)
• M19: 14,497,081 km (0.066 R)
• M20: 15,137,061 km (0.106 R)
• M21: 15,891,483 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.2

Radius: 13.6

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 2.4 AU - 2.64 AU

Year: 2624 Days

Day: 12.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 22,480,665 km

• M1: 169,195 km (0.106 R)
• M2: 706,700 km (0.076 R)
• M3: 1,470,846 km (0.052 R)
• M4: 2,217,489 km (0.114 R)
• M5: 3,030,703 km (0.046 R)
• M6: 3,647,944 km (0.1 R)
• M7: 4,130,846 km (0.117 R)
• M8: 4,958,122 km (0.111 R)
• M9: 5,553,223 km (0.049 R)
• M10: 6,043,156 km (0.076 R)
• M11: 7,749,020 km (0.119 R)
• M12: 9,041,396 km (0.072 R)
• M13: 9,861,940 km (0.057 R)
• M14: 11,494,801 km (0.026 R)
• M15: 12,050,408 km (0.095 R)
• M16: 15,196,451 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 986.4

Radius: 12.2

Gravity: 6.63 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 2.54 AU - 2.56 AU

Year: 2671 Days

Day: 5.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 22,480,665 km

• M1: 151,692 km (0.041 R)
• M2: 595,549 km (0.113 R)
• M3: 975,079 km (0.117 R)
• M4: 1,394,701 km (0.038 R)
• M5: 2,571,887 km (0.069 R)
• M6: 4,046,922 km (0.082 R)
• M7: 4,754,819 km (0.065 R)
• M8: 5,138,836 km (0.11 R)
• M9: 5,595,858 km (0.077 R)
• M10: 5,997,379 km (0.06 R)
• M11: 7,866,155 km (0.065 R)
• M12: 8,474,869 km (0.077 R)
• M13: 8,969,888 km (0.105 R)
• M14: 9,409,407 km (0.077 R)
• M15: 10,652,715 km (0.075 R)
• M16: 11,568,852 km (0.106 R)
• M17: 12,810,215 km (0.037 R)
• M18: 13,894,650 km (0.112 R)
• M19: 15,872,035 km (0.032 R)
• M20: 16,680,312 km (0.118 R)
• M21: 17,915,243 km (0.09 R)
• M22: 19,270,450 km (0.118 R)
• M23: 19,880,659 km (0.116 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 348.7

Radius: 14.5

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 3.06 AU - 3.64 AU

Year: 4022 Days

Day: 5.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 22,480,665 km

• M1: 180,265 km (0.105 R)
• M2: 634,145 km (0.077 R)
• M3: 1,227,600 km (0.099 R)
• M4: 1,812,677 km (0.105 R)
• M5: 2,657,606 km (0.032 R)
• M6: 3,619,969 km (0.085 R)
• M7: 4,298,246 km (0.1 R)
• M8: 4,919,376 km (0.039 R)
• M9: 5,374,603 km (0.073 R)
• M10: 6,016,677 km (0.097 R)
• M11: 7,800,931 km (0.118 R)
• M12: 8,972,282 km (0.089 R)
• M13: 9,766,796 km (0.108 R)
• M14: 10,373,565 km (0.064 R)
• M15: 12,654,334 km (0.059 R)
• M16: 13,841,543 km (0.085 R)
• M17: 15,352,631 km (0.031 R)
• M18: 16,018,192 km (0.1 R)
• M19: 16,543,131 km (0.074 R)
• M20: 18,074,564 km (0.101 R)
• M21: 20,240,742 km (0.087 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 329.5

Radius: 13.5

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 3.67 AU - 3.69 AU

Year: 4631 Days

Day: 11 Hours

Environment

Temp: -209 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 22,480,665 km

• M1: 172,187 km (0.07 R)
• M2: 1,029,533 km (0.097 R)
• M3: 2,017,178 km (0.11 R)
• M4: 2,681,991 km (0.058 R)
• M5: 3,779,889 km (0.061 R)
• M6: 4,867,915 km (0.117 R)
• M7: 5,827,286 km (0.104 R)
• M8: 8,919,474 km (0.046 R)
• M9: 13,298,503 km (0.089 R)
• M10: 16,706,492 km (0.096 R)
• M11: 19,970,568 km (0.115 R)
• M12: 22,213,937 km (0.046 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: 406 - 14,698 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit