🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 576.3

Radius: 12

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.9 AU - 1.18 AU

Year: 732 Days

Day: 5.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 78,606,556 km

• M1: 149,448 km (0.107 R)
• M2: 536,458 km (0.086 R)
• M3: 940,522 km (0.107 R)
• M4: 1,744,910 km (0.052 R)
• M5: 2,253,542 km (0.079 R)
• M6: 2,837,124 km (0.12 R)
• M7: 3,506,275 km (0.111 R)
• M8: 4,097,486 km (0.051 R)
• M9: 4,937,627 km (0.036 R)
• M10: 5,946,515 km (0.109 R)
• M11: 6,479,682 km (0.112 R)
• M12: 6,916,358 km (0.08 R)
• M13: 7,756,799 km (0.062 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 585.9

Radius: 8.7

Gravity: 7.74 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.14 AU - 1.48 AU

Year: 1035 Days

Day: 11.8 Hours

Environment

Temp: -196 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 78,606,556 km

• M1: 108,159 km (0.081 R)
• M2: 461,509 km (0.096 R)
• M3: 772,224 km (0.112 R)
• M4: 1,164,769 km (0.106 R)
• M5: 2,187,570 km (0.098 R)
• M6: 3,570,004 km (0.105 R)
• M7: 4,031,663 km (0.078 R)
• M8: 4,361,227 km (0.07 R)
• M9: 4,637,684 km (0.092 R)
• M10: 5,400,483 km (0.065 R)
• M11: 9,389,211 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869

Radius: 12.9

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 3.01 AU - 4.75 AU

Year: 5275 Days

Day: 10 Hours

Environment

Temp: -220 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 78,606,556 km

• M1: 160,369 km (0.095 R)
• M2: 650,302 km (0.103 R)
• M3: 1,052,720 km (0.036 R)
• M4: 1,581,399 km (0.108 R)
• M5: 2,069,537 km (0.056 R)
• M6: 2,484,222 km (0.076 R)
• M7: 3,485,331 km (0.043 R)
• M8: 4,739,111 km (0.075 R)
• M9: 5,440,276 km (0.106 R)
• M10: 6,404,584 km (0.112 R)
• M11: 7,085,254 km (0.088 R)
• M12: 7,516,395 km (0.103 R)
• M13: 10,903,142 km (0.109 R)
• M14: 13,878,942 km (0.101 R)
• M15: 14,441,879 km (0.086 R)
• M16: 14,903,239 km (0.089 R)
• M17: 16,533,257 km (0.086 R)
• M18: 17,618,740 km (0.098 R)
• M19: 19,579,369 km (0.07 R)
• M20: 23,930,124 km (0.075 R)
• M21: 25,485,194 km (0.06 R)
• M22: 28,076,229 km (0.098 R)
• M23: 30,178,229 km (0.111 R)
• M24: 31,315,621 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 580.3

Radius: 15

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 4.53 AU - 6.03 AU

Year: 8375 Days

Day: 13.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 78,606,556 km

• M1: 186,549 km (0.084 R)
• M2: 828,473 km (0.113 R)
• M3: 1,302,249 km (0.113 R)
• M4: 1,833,621 km (0.086 R)
• M5: 2,529,401 km (0.094 R)
• M6: 3,115,974 km (0.099 R)
• M7: 3,817,139 km (0.069 R)
• M8: 4,404,161 km (0.09 R)
• M9: 5,793,776 km (0.111 R)
• M10: 8,382,417 km (0.05 R)
• M11: 10,899,402 km (0.117 R)
• M12: 11,406,239 km (0.078 R)
• M13: 11,981,892 km (0.099 R)
• M14: 14,181,280 km (0.119 R)
• M15: 14,909,223 km (0.053 R)
• M16: 16,047,663 km (0.049 R)
• M17: 17,585,978 km (0.057 R)
• M18: 18,073,068 km (0.111 R)
• M19: 18,640,942 km (0.102 R)
• M20: 20,416,070 km (0.045 R)
• M21: 20,954,473 km (0.073 R)
• M22: 24,129,837 km (0.065 R)
• M23: 26,781,310 km (0.077 R)
• M24: 28,462,491 km (0.107 R)
• M25: 31,317,566 km (0.075 R)
• M26: 34,902,230 km (0.117 R)
• M27: 38,518,011 km (0.075 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 38.2

Radius: 5.9

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 4.77 AU - 6.43 AU

Year: 9147 Days

Day: 23.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 78,606,556 km

• M1: 74,350 km (0.119 R)
• M2: 269,127 km (0.062 R)
• M3: 986,748 km (0.056 R)
• M4: 2,475,546 km (0.083 R)
• M5: 10,514,636 km (0.107 R)
• M6: 11,002,774 km (0.104 R)
• M7: 11,427,632 km (0.116 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 998.9

Radius: 6.2

Gravity: 25.99 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 6.72 AU - 9.54 AU

Year: 16001 Days

Day: 23.6 Hours

Environment

Temp: -241 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 78,606,556 km

• M1: 77,342 km (0.115 R)
• M2: 510,278 km (0.08 R)
• M3: 1,638,845 km (0.101 R)
• M4: 2,268,801 km (0.116 R)
• M5: 3,809,360 km (0.108 R)
• M6: 4,025,828 km (0.049 R)
• M7: 5,779,564 km (0.107 R)
• M8: 6,491,500 km (0.103 R)
• M9: 8,604,122 km (0.08 R)
• M10: 10,764,764 km (0.073 R)
• M11: 12,035,897 km (0.041 R)
• M12: 13,979,173 km (0.039 R)
• M13: 14,570,683 km (0.103 R)
• M14: 15,567,304 km (0.083 R)
• M15: 16,690,485 km (0.089 R)
• M16: 20,196,012 km (0.077 R)
• M17: 32,428,929 km (0.085 R)
• M18: 44,737,094 km (0.07 R)
• M19: 49,841,074 km (0.075 R)
• M20: 67,873,452 km (0.084 R)
• M21: 71,067,516 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 872.7

Radius: 5.3

Gravity: 31.07 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 8.33 AU - 9.65 AU

Year: 18606 Days

Day: 20.6 Hours

Environment

Temp: -239 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 78,606,556 km

• M1: 65,973 km (0.103 R)
• M2: 259,104 km (0.102 R)
• M3: 508,932 km (0.066 R)
• M4: 913,594 km (0.117 R)
• M5: 2,186,522 km (0.089 R)
• M6: 2,497,536 km (0.086 R)
• M7: 3,885,057 km (0.052 R)
• M8: 4,341,629 km (0.071 R)
• M9: 6,894,068 km (0.107 R)
• M10: 7,513,104 km (0.097 R)
• M11: 8,483,246 km (0.117 R)
• M12: 9,476,876 km (0.086 R)
• M13: 12,850,008 km (0.111 R)
• M14: 15,469,467 km (0.055 R)
• M15: 19,518,333 km (0.108 R)
• M16: 20,751,469 km (0.117 R)
• M17: 24,220,793 km (0.081 R)
• M18: 24,980,152 km (0.077 R)
• M19: 32,281,126 km (0.085 R)
• M20: 39,678,591 km (0.098 R)
• M21: 47,621,939 km (0.062 R)
• M22: 51,607,077 km (0.115 R)
• M23: 53,406,889 km (0.084 R)
• M24: 54,876,538 km (0.062 R)
• M25: 55,248,139 km (0.056 R)
• M26: 56,751,448 km (0.059 R)
• M27: 60,035,720 km (0.087 R)
• M28: 60,232,890 km (0.113 R)
• M29: 71,747,887 km (0.118 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 418 - 11,229 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit