🌌 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: 168

Radius: 8.2

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.65 AU - 1.05 AU

Year: 532 Days

Day: 8.2 Hours

Environment

Temp: -169 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 22,582,992 km

• M1: 103,073 km (0.05 R)
• M2: 404,363 km (0.071 R)
• M3: 786,885 km (0.093 R)
• M4: 1,254,677 km (0.099 R)
• M5: 2,707,422 km (0.108 R)
• M6: 3,399,462 km (0.102 R)
• M7: 3,764,331 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.4

Radius: 9.2

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.78 AU - 0.98 AU

Year: 560 Days

Day: 9 Hours

Environment

Temp: -174 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 22,582,992 km

• M1: 114,592 km (0.11 R)
• M2: 840,590 km (0.07 R)
• M3: 1,407,866 km (0.041 R)
• M4: 2,003,265 km (0.093 R)
• M5: 2,687,675 km (0.057 R)
• M6: 3,355,031 km (0.104 R)
• M7: 5,202,715 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256.7

Radius: 9.8

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.89 AU - 0.95 AU

Year: 599 Days

Day: 5.5 Hours

Environment

Temp: -166 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 22,582,992 km

• M1: 121,922 km (0.111 R)
• M2: 442,660 km (0.105 R)
• M3: 748,438 km (0.111 R)
• M4: 1,088,624 km (0.119 R)
• M5: 2,897,711 km (0.08 R)
• M6: 3,950,880 km (0.095 R)
• M7: 4,385,162 km (0.094 R)
• M8: 5,272,128 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.1

Radius: 13.4

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.88 AU - 1.13 AU

Year: 678 Days

Day: 14 Hours

Environment

Temp: -180 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 22,582,992 km

• M1: 166,652 km (0.027 R)
• M2: 654,191 km (0.104 R)
• M3: 1,071,869 km (0.095 R)
• M4: 1,879,697 km (0.1 R)
• M5: 2,362,898 km (0.105 R)
• M6: 2,798,378 km (0.097 R)
• M7: 3,888,198 km (0.113 R)
• M8: 4,652,643 km (0.1 R)
• M9: 5,549,483 km (0.095 R)
• M10: 6,048,840 km (0.079 R)
• M11: 6,558,670 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 947.2

Radius: 9.8

Gravity: 9.86 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.49 AU - 1.59 AU

Year: 1296 Days

Day: 9.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 22,582,992 km

• M1: 121,922 km (0.068 R)
• M2: 566,078 km (0.074 R)
• M3: 938,427 km (0.08 R)
• M4: 1,245,402 km (0.105 R)
• M5: 1,668,315 km (0.116 R)
• M6: 2,174,405 km (0.094 R)
• M7: 2,645,489 km (0.027 R)
• M8: 2,977,297 km (0.048 R)
• M9: 3,609,049 km (0.069 R)
• M10: 6,579,314 km (0.106 R)
• M11: 7,088,246 km (0.08 R)
• M12: 7,568,605 km (0.104 R)
• M13: 8,564,628 km (0.112 R)
• M14: 9,359,441 km (0.101 R)
• M15: 10,506,109 km (0.103 R)
• M16: 11,416,711 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 556.5

Radius: 12.4

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.29 AU - 1.89 AU

Year: 1360 Days

Day: 6.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 22,582,992 km

• M1: 156,928 km (0.108 R)
• M2: 581,337 km (0.081 R)
• M3: 1,019,061 km (0.071 R)
• M4: 1,613,263 km (0.061 R)
• M5: 2,149,721 km (0.062 R)
• M6: 2,764,868 km (0.058 R)
• M7: 3,185,687 km (0.085 R)
• M8: 4,140,869 km (0.064 R)
• M9: 5,177,882 km (0.073 R)
• M10: 5,779,265 km (0.078 R)
• M11: 6,380,798 km (0.078 R)
• M12: 7,197,154 km (0.079 R)
• M13: 7,656,868 km (0.118 R)
• M14: 8,109,102 km (0.104 R)
• M15: 8,522,740 km (0.103 R)
• M16: 9,604,183 km (0.1 R)
• M17: 10,611,426 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 645.8

Radius: 10.6

Gravity: 5.75 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 2.11 AU - 2.15 AU

Year: 2108 Days

Day: 12.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 22,582,992 km

• M1: 136,583 km (0.114 R)
• M2: 673,041 km (0.111 R)
• M3: 1,111,662 km (0.089 R)
• M4: 1,567,935 km (0.117 R)
• M5: 2,732,854 km (0.107 R)
• M6: 3,321,522 km (0.079 R)
• M7: 6,043,754 km (0.119 R)
• M8: 6,663,837 km (0.062 R)
• M9: 7,212,413 km (0.119 R)
• M10: 8,684,605 km (0.091 R)
• M11: 9,239,314 km (0.059 R)
• M12: 10,528,698 km (0.089 R)
• M13: 11,084,155 km (0.078 R)
• M14: 15,207,372 km (0.078 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 369.5

Radius: 14.2

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.85 AU - 4.11 AU

Year: 4403 Days

Day: 11.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 22,582,992 km

• M1: 180,265 km (0.118 R)
• M2: 684,410 km (0.112 R)
• M3: 1,330,075 km (0.076 R)
• M4: 1,884,484 km (0.08 R)
• M5: 2,716,997 km (0.081 R)
• M6: 3,272,902 km (0.05 R)
• M7: 4,153,884 km (0.031 R)
• M8: 4,685,405 km (0.074 R)
• M9: 6,386,931 km (0.052 R)
• M10: 7,315,485 km (0.067 R)
• M11: 8,857,241 km (0.118 R)
• M12: 10,445,821 km (0.093 R)
• M13: 11,392,476 km (0.05 R)
• M14: 14,378,599 km (0.095 R)
• M15: 15,550,250 km (0.085 R)
• M16: 17,172,938 km (0.112 R)
• M17: 18,786,949 km (0.059 R)
• M18: 19,266,261 km (0.094 R)
• M19: 19,815,136 km (0.1 R)
• M20: 22,448,806 km (0.102 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 443 - 19,597 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit