🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.24

Radius: 0.57

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.5 AU - 0.82 AU

Year: 352 Days

Day: 45.6 Hours

Environment

Temp: -141 °C

Axial Tilt: 36.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.97

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.62 AU - 0.7 AU

Year: 352 Days

Day: 44.8 Hours

Environment

Temp: -124 °C

Axial Tilt: 49.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 67,547,632 km

• M1: 106,962 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 284.7

Radius: 8.6

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.64 AU - 1.06 AU

Year: 514 Days

Day: 8.6 Hours

Environment

Temp: -157 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 67,547,632 km

• M1: 106,962 km (0.112 R)
• M2: 398,379 km (0.099 R)
• M3: 726,447 km (0.091 R)
• M4: 1,080,695 km (0.116 R)
• M5: 1,411,456 km (0.074 R)
• M6: 3,753,261 km (0.118 R)
• M7: 4,591,757 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885.7

Radius: 11.7

Gravity: 6.47 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.94 AU - 1.2 AU

Year: 726 Days

Day: 10.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 67,547,632 km

• M1: 145,559 km (0.045 R)
• M2: 587,620 km (0.082 R)
• M3: 960,418 km (0.059 R)
• M4: 1,522,607 km (0.076 R)
• M5: 1,991,596 km (0.034 R)
• M6: 2,446,224 km (0.115 R)
• M7: 3,045,214 km (0.079 R)
• M8: 3,769,418 km (0.104 R)
• M9: 4,707,097 km (0.107 R)
• M10: 5,637,596 km (0.099 R)
• M11: 6,054,824 km (0.069 R)
• M12: 6,513,940 km (0.116 R)
• M13: 6,951,514 km (0.118 R)
• M14: 7,620,815 km (0.065 R)
• M15: 8,008,273 km (0.119 R)
• M16: 8,408,896 km (0.086 R)
• M17: 9,061,592 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 664.4

Radius: 10.3

Gravity: 6.26 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.39 AU - 1.55 AU

Year: 1169 Days

Day: 6.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 67,547,632 km

• M1: 128,056 km (0.055 R)
• M2: 502,649 km (0.066 R)
• M3: 845,976 km (0.032 R)
• M4: 1,277,865 km (0.105 R)
• M5: 1,826,590 km (0.103 R)
• M6: 2,932,866 km (0.104 R)
• M7: 3,309,105 km (0.094 R)
• M8: 3,686,241 km (0.117 R)
• M9: 4,841,286 km (0.084 R)
• M10: 5,430,702 km (0.094 R)
• M11: 8,636,734 km (0.08 R)
• M12: 9,005,792 km (0.117 R)
• M13: 10,945,927 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 417.8

Radius: 14.3

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 3 AU - 3.84 AU

Year: 4149 Days

Day: 15 Hours

Environment

Temp: -201 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 67,547,632 km

• M1: 197,020 km (0.12 R)
• M2: 686,355 km (0.06 R)
• M3: 2,088,985 km (0.114 R)
• M4: 2,582,209 km (0.03 R)
• M5: 3,829,705 km (0.115 R)
• M6: 4,927,604 km (0.11 R)
• M7: 7,388,938 km (0.045 R)
• M8: 9,680,628 km (0.109 R)
• M9: 11,155,513 km (0.039 R)
• M10: 14,053,374 km (0.097 R)
• M11: 15,571,194 km (0.1 R)
• M12: 16,478,654 km (0.034 R)
• M13: 21,164,658 km (0.072 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914.4

Radius: 8.9

Gravity: 11.54 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 3.95 AU - 4.95 AU

Year: 6158 Days

Day: 8.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 67,547,632 km

• M1: 110,702 km (0.105 R)
• M2: 420,071 km (0.12 R)
• M3: 974,032 km (0.111 R)
• M4: 1,674,898 km (0.079 R)
• M5: 1,993,541 km (0.074 R)
• M6: 2,318,468 km (0.106 R)
• M7: 3,203,040 km (0.11 R)
• M8: 3,558,634 km (0.092 R)
• M9: 5,845,986 km (0.082 R)
• M10: 6,142,040 km (0.098 R)
• M11: 7,090,789 km (0.049 R)
• M12: 8,629,703 km (0.051 R)
• M13: 10,284,405 km (0.111 R)
• M14: 10,814,729 km (0.071 R)
• M15: 12,407,498 km (0.064 R)
• M16: 12,953,231 km (0.109 R)
• M17: 13,975,583 km (0.094 R)
• M18: 14,626,333 km (0.113 R)
• M19: 15,050,892 km (0.11 R)
• M20: 16,831,705 km (0.052 R)
• M21: 17,772,825 km (0.058 R)
• M22: 18,819,711 km (0.076 R)
• M23: 20,579,581 km (0.046 R)
• M24: 20,959,559 km (0.083 R)
• M25: 22,848,980 km (0.025 R)
• M26: 27,054,177 km (0.1 R)
• M27: 28,157,610 km (0.101 R)
• M28: 31,346,289 km (0.118 R)
• M29: 34,447,004 km (0.075 R)
• M30: 36,735,253 km (0.092 R)
• M31: 37,294,749 km (0.054 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886

Radius: 8.4

Gravity: 12.56 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 4.44 AU - 6.04 AU

Year: 7869 Days

Day: 12.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 67,547,632 km

• M1: 117,883 km (0.051 R)
• M2: 552,016 km (0.053 R)
• M3: 903,122 km (0.108 R)
• M4: 1,505,703 km (0.073 R)
• M5: 2,317,570 km (0.076 R)
• M6: 2,579,965 km (0.104 R)
• M7: 4,863,726 km (0.03 R)
• M8: 15,931,575 km (0.039 R)
• M9: 18,026,992 km (0.111 R)
• M10: 18,914,257 km (0.087 R)
• M11: 20,220,845 km (0.032 R)
• M12: 21,097,638 km (0.062 R)
• M13: 24,500,391 km (0.071 R)
• M14: 25,222,201 km (0.116 R)
• M15: 25,772,871 km (0.112 R)
• M16: 26,708,456 km (0.083 R)
• M17: 30,161,623 km (0.058 R)
• M18: 31,095,413 km (0.099 R)
• M19: 32,694,465 km (0.079 R)
• M20: 38,905,021 km (0.1 R)
• M21: 40,509,607 km (0.071 R)
• M22: 40,885,996 km (0.094 R)
• M23: 42,933,243 km (0.117 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 553.8

Radius: 8

Gravity: 8.65 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 9.09 AU - 9.51 AU

Year: 18605 Days

Day: 22 Hours

Environment

Temp: -227 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 67,547,632 km

• M1: 99,782 km (0.101 R)
• M2: 639,082 km (0.052 R)
• M3: 1,298,659 km (0.075 R)
• M4: 1,761,515 km (0.076 R)
• M5: 2,167,673 km (0.061 R)
• M6: 2,457,893 km (0.075 R)
• M7: 5,575,064 km (0.107 R)
• M8: 5,923,627 km (0.088 R)
• M9: 6,327,990 km (0.098 R)
• M10: 7,889,792 km (0.054 R)
• M11: 8,181,358 km (0.119 R)
• M12: 8,632,096 km (0.046 R)
• M13: 10,720,183 km (0.027 R)
• M14: 12,524,783 km (0.115 R)
• M15: 14,887,980 km (0.074 R)
• M16: 16,408,792 km (0.09 R)
• M17: 20,659,167 km (0.102 R)
• M18: 22,064,639 km (0.096 R)
• M19: 27,431,163 km (0.035 R)
• M20: 28,782,481 km (0.103 R)
• M21: 29,242,494 km (0.036 R)
• M22: 30,295,813 km (0.039 R)
• M23: 33,227,931 km (0.12 R)
• M24: 42,108,659 km (0.114 R)
• M25: 44,361,304 km (0.039 R)
• M26: 45,284,472 km (0.094 R)
• M27: 47,969,604 km (0.044 R)
• M28: 49,433,270 km (0.084 R)
• M29: 52,620,602 km (0.072 R)
• M30: 58,293,802 km (0.091 R)
• M31: 59,030,422 km (0.099 R)
• M32: 65,346,295 km (0.118 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 198 - 13,181 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit