🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.4

Radius: 14.7

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.67 AU - 0.91 AU

Year: 461 Days

Day: 5.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,533,454 km

• M1: 182,809 km (0.105 R)
• M2: 675,285 km (0.096 R)
• M3: 1,133,802 km (0.066 R)
• M4: 1,678,189 km (0.077 R)
• M5: 2,295,879 km (0.116 R)
• M6: 2,875,720 km (0.041 R)
• M7: 3,515,400 km (0.075 R)
• M8: 4,094,494 km (0.119 R)
• M9: 4,814,209 km (0.095 R)
• M10: 5,463,464 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 259.8

Radius: 14.2

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.2 AU - 2 AU

Year: 1328 Days

Day: 8.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,533,454 km

• M1: 180,565 km (0.048 R)
• M2: 1,296,565 km (0.101 R)
• M3: 1,798,914 km (0.115 R)
• M4: 2,541,219 km (0.087 R)
• M5: 4,934,037 km (0.047 R)
• M6: 5,405,121 km (0.054 R)
• M7: 6,006,355 km (0.086 R)
• M8: 6,695,253 km (0.11 R)
• M9: 7,389,985 km (0.053 R)
• M10: 8,923,962 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 107.8

Radius: 11.8

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.26 AU - 2.04 AU

Year: 1390 Days

Day: 9.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,533,454 km

• M1: 146,756 km (0.111 R)
• M2: 528,679 km (0.038 R)
• M3: 1,059,303 km (0.084 R)
• M4: 1,432,549 km (0.066 R)
• M5: 2,559,620 km (0.112 R)
• M6: 3,385,549 km (0.025 R)
• M7: 4,062,330 km (0.086 R)
• M8: 4,608,213 km (0.119 R)
• M9: 5,119,538 km (0.085 R)
• M10: 6,604,596 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 412.9

Radius: 14.8

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.99 AU - 2.97 AU

Year: 2562 Days

Day: 6.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,533,454 km

• M1: 187,745 km (0.081 R)
• M2: 698,472 km (0.074 R)
• M3: 1,186,910 km (0.104 R)
• M4: 1,925,773 km (0.093 R)
• M5: 3,004,972 km (0.09 R)
• M6: 3,500,740 km (0.113 R)
• M7: 3,995,759 km (0.095 R)
• M8: 4,639,628 km (0.097 R)
• M9: 5,172,795 km (0.086 R)
• M10: 5,939,634 km (0.109 R)
• M11: 6,888,683 km (0.088 R)
• M12: 7,528,064 km (0.09 R)
• M13: 8,298,493 km (0.083 R)
• M14: 11,040,024 km (0.034 R)
• M15: 11,800,579 km (0.07 R)
• M16: 13,215,775 km (0.097 R)
• M17: 14,338,358 km (0.085 R)
• M18: 15,853,784 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.4

Radius: 14.2

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 3.55 AU - 5.57 AU

Year: 6388 Days

Day: 9.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 40,533,454 km

• M1: 176,525 km (0.062 R)
• M2: 1,227,600 km (0.094 R)
• M3: 4,215,967 km (0.065 R)
• M4: 5,418,884 km (0.116 R)
• M5: 12,513,862 km (0.03 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.4

Radius: 9.2

Gravity: 6.4 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 4.55 AU - 5.25 AU

Year: 7115 Days

Day: 14.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 40,533,454 km

• M1: 114,442 km (0.117 R)
• M2: 445,203 km (0.093 R)
• M3: 904,020 km (0.06 R)
• M4: 1,438,084 km (0.072 R)
• M5: 2,123,542 km (0.062 R)
• M6: 2,505,615 km (0.1 R)
• M7: 2,913,718 km (0.093 R)
• M8: 3,541,430 km (0.108 R)
• M9: 5,238,169 km (0.094 R)
• M10: 7,090,939 km (0.08 R)
• M11: 9,171,845 km (0.051 R)
• M12: 9,783,252 km (0.036 R)
• M13: 10,328,686 km (0.116 R)
• M14: 10,942,336 km (0.08 R)
• M15: 11,332,039 km (0.061 R)
• M16: 13,200,815 km (0.112 R)
• M17: 14,731,202 km (0.06 R)
• M18: 20,833,448 km (0.031 R)
• M19: 23,944,186 km (0.051 R)
• M20: 25,186,447 km (0.093 R)
• M21: 25,609,959 km (0.099 R)
• M22: 27,799,174 km (0.073 R)
• M23: 30,779,612 km (0.106 R)
• M24: 31,851,481 km (0.104 R)
• M25: 32,346,949 km (0.033 R)
• M26: 33,556,747 km (0.072 R)
• M27: 34,172,791 km (0.111 R)
• M28: 35,111,219 km (0.048 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 46.2

Radius: 12.4

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 4.76 AU - 5.34 AU

Year: 7445 Days

Day: 5.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,533,454 km

• M1: 154,235 km (0.064 R)
• M2: 645,664 km (0.108 R)
• M3: 1,032,076 km (0.085 R)
• M4: 1,562,400 km (0.09 R)
• M5: 2,114,566 km (0.063 R)
• M6: 3,992,318 km (0.068 R)
• M7: 4,864,324 km (0.096 R)
• M8: 5,763,557 km (0.073 R)
• M9: 6,508,255 km (0.087 R)
• M10: 11,193,661 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 188.7

Radius: 3

Gravity: 20.97 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 7.93 AU - 8.05 AU

Year: 14816 Days

Day: 23.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 40,533,454 km

• M1: 38,147 km (0.098 R)
• M2: 171,290 km (0.106 R)
• M3: 439,818 km (0.118 R)
• M4: 782,397 km (0.115 R)
• M5: 898,036 km (0.077 R)
• M6: 1,141,731 km (0.039 R)
• M7: 1,532,630 km (0.102 R)
• M8: 2,207,167 km (0.076 R)
• M9: 2,571,139 km (0.113 R)
• M10: 2,931,669 km (0.091 R)
• M11: 3,146,043 km (0.101 R)
• M12: 3,463,490 km (0.074 R)
• M13: 4,860,285 km (0.086 R)
• M14: 5,314,913 km (0.102 R)
• M15: 7,857,179 km (0.083 R)
• M16: 9,139,084 km (0.051 R)
• M17: 10,115,060 km (0.041 R)
• M18: 10,653,164 km (0.12 R)
• M19: 12,381,318 km (0.06 R)
• M20: 13,514,971 km (0.056 R)
• M21: 16,116,927 km (0.073 R)
• M22: 19,402,993 km (0.11 R)
• M23: 19,626,792 km (0.103 R)
• M24: 19,776,839 km (0.06 R)
• M25: 21,162,564 km (0.109 R)
• M26: 21,959,621 km (0.059 R)
• M27: 24,557,538 km (0.08 R)
• M28: 25,348,462 km (0.091 R)
• M29: 25,975,277 km (0.113 R)
• M30: 28,202,639 km (0.083 R)
• M31: 28,393,825 km (0.054 R)
• M32: 29,460,757 km (0.119 R)
• M33: 29,756,213 km (0.043 R)
• M34: 32,505,673 km (0.046 R)
• M35: 33,672,686 km (0.113 R)
• M36: 36,997,049 km (0.046 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: 221 - 20,163 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit