🌌 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 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 123

Radius: 9.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.6 AU - 0.72 AU

Year: 370 Days

Day: 13.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 45,503,751 km

• M1: 120,725 km (0.074 R)
• M2: 459,714 km (0.082 R)
• M3: 941,868 km (0.115 R)
• M4: 1,279,361 km (0.098 R)
• M5: 2,278,525 km (0.095 R)
• M6: 2,631,277 km (0.083 R)
• M7: 2,951,716 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.3

Radius: 12.9

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.51 AU - 0.81 AU

Year: 370 Days

Day: 10.2 Hours

Environment

Temp: -159 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 45,503,751 km

• M1: 160,519 km (0.072 R)
• M2: 562,488 km (0.064 R)
• M3: 964,158 km (0.09 R)
• M4: 1,383,780 km (0.085 R)
• M5: 1,798,466 km (0.03 R)
• M6: 2,734,499 km (0.118 R)
• M7: 3,318,978 km (0.026 R)
• M8: 5,027,835 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.2

Radius: 14.4

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.7 AU - 0.82 AU

Year: 457 Days

Day: 15 Hours

Environment

Temp: -167 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,503,751 km

• M1: 179,069 km (0.064 R)
• M2: 674,686 km (0.082 R)
• M3: 1,191,248 km (0.089 R)
• M4: 1,685,818 km (0.111 R)
• M5: 2,237,984 km (0.096 R)
• M6: 2,761,876 km (0.08 R)
• M7: 3,403,950 km (0.05 R)
• M8: 3,912,882 km (0.04 R)
• M9: 4,912,046 km (0.085 R)
• M10: 5,514,477 km (0.112 R)
• M11: 6,202,627 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 900.7

Radius: 8.5

Gravity: 12.47 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.2 AU - 1.54 AU

Year: 1107 Days

Day: 12.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 45,503,751 km

• M1: 105,915 km (0.078 R)
• M2: 413,788 km (0.078 R)
• M3: 764,146 km (0.104 R)
• M4: 1,059,751 km (0.102 R)
• M5: 1,441,076 km (0.116 R)
• M6: 2,069,687 km (0.082 R)
• M7: 2,495,891 km (0.106 R)
• M8: 2,763,073 km (0.119 R)
• M9: 3,266,170 km (0.088 R)
• M10: 4,168,993 km (0.09 R)
• M11: 4,437,073 km (0.073 R)
• M12: 4,948,698 km (0.119 R)
• M13: 5,249,688 km (0.064 R)
• M14: 5,584,189 km (0.06 R)
• M15: 6,180,935 km (0.092 R)
• M16: 6,482,973 km (0.069 R)
• M17: 6,967,222 km (0.103 R)
• M18: 7,475,256 km (0.059 R)
• M19: 8,144,856 km (0.05 R)
• M20: 9,089,118 km (0.03 R)
• M21: 9,480,466 km (0.12 R)
• M22: 9,851,768 km (0.118 R)
• M23: 10,590,482 km (0.103 R)
• M24: 10,855,869 km (0.117 R)
• M25: 11,365,549 km (0.117 R)
• M26: 11,678,956 km (0.063 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 721.1

Radius: 14.2

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.4 AU - 1.96 AU

Year: 1503 Days

Day: 14 Hours

Environment

Temp: -203 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 45,503,751 km

• M1: 176,525 km (0.064 R)
• M2: 635,193 km (0.073 R)
• M3: 1,296,714 km (0.098 R)
• M4: 1,748,350 km (0.089 R)
• M5: 2,696,651 km (0.107 R)
• M6: 3,983,043 km (0.116 R)
• M7: 5,690,703 km (0.08 R)
• M8: 7,275,244 km (0.094 R)
• M9: 8,013,659 km (0.12 R)
• M10: 9,075,654 km (0.079 R)
• M11: 9,545,092 km (0.058 R)
• M12: 13,062,587 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.1

Radius: 11.4

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.67 AU - 2.15 AU

Year: 1822 Days

Day: 11.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 45,503,751 km

• M1: 143,764 km (0.093 R)
• M2: 705,055 km (0.088 R)
• M3: 1,086,380 km (0.114 R)
• M4: 1,717,234 km (0.107 R)
• M5: 2,094,221 km (0.081 R)
• M6: 3,125,848 km (0.101 R)
• M7: 4,014,160 km (0.08 R)
• M8: 4,371,250 km (0.102 R)
• M9: 4,915,188 km (0.109 R)
• M10: 5,617,998 km (0.114 R)
• M11: 6,615,218 km (0.076 R)
• M12: 7,278,834 km (0.053 R)
• M13: 7,698,007 km (0.089 R)
• M14: 8,708,242 km (0.106 R)
• M15: 9,407,612 km (0.068 R)
• M16: 9,804,644 km (0.098 R)
• M17: 10,421,287 km (0.102 R)
• M18: 11,027,308 km (0.109 R)
• M19: 11,618,818 km (0.103 R)
• M20: 12,153,780 km (0.116 R)
• M21: 13,815,363 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 757.6

Radius: 9.2

Gravity: 8.95 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.8 AU - 2.74 AU

Year: 2361 Days

Day: 12.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 45,503,751 km

• M1: 114,442 km (0.113 R)
• M2: 554,709 km (0.049 R)
• M3: 867,219 km (0.115 R)
• M4: 1,163,423 km (0.119 R)
• M5: 1,695,841 km (0.12 R)
• M6: 2,248,157 km (0.034 R)
• M7: 2,596,271 km (0.054 R)
• M8: 3,045,065 km (0.081 R)
• M9: 3,824,470 km (0.089 R)
• M10: 4,933,139 km (0.11 R)
• M11: 5,825,640 km (0.108 R)
• M12: 6,459,636 km (0.039 R)
• M13: 7,022,423 km (0.119 R)
• M14: 7,587,155 km (0.092 R)
• M15: 7,927,640 km (0.108 R)
• M16: 8,246,134 km (0.114 R)
• M17: 9,079,843 km (0.073 R)
• M18: 11,550,302 km (0.113 R)
• M19: 12,210,627 km (0.036 R)
• M20: 15,497,891 km (0.106 R)
• M21: 16,199,205 km (0.053 R)
• M22: 16,817,194 km (0.11 R)
• M23: 17,557,853 km (0.108 R)
• M24: 18,597,558 km (0.036 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 857

Radius: 12.4

Gravity: 5.57 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 2.33 AU - 3.65 AU

Year: 3569 Days

Day: 12.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 45,503,751 km

• M1: 154,684 km (0.114 R)
• M2: 715,227 km (0.115 R)
• M3: 1,473,240 km (0.111 R)
• M4: 2,369,780 km (0.113 R)
• M5: 2,870,484 km (0.044 R)
• M6: 4,176,773 km (0.043 R)
• M7: 4,570,215 km (0.113 R)
• M8: 5,486,502 km (0.111 R)
• M9: 7,648,490 km (0.098 R)
• M10: 8,348,459 km (0.069 R)
• M11: 9,014,618 km (0.084 R)
• M12: 10,286,050 km (0.049 R)
• M13: 11,008,459 km (0.074 R)
• M14: 13,281,149 km (0.083 R)
• M15: 14,606,586 km (0.11 R)
• M16: 15,850,942 km (0.105 R)
• M17: 16,584,719 km (0.11 R)
• M18: 17,106,068 km (0.049 R)
• M19: 18,488,053 km (0.097 R)
• M20: 20,203,791 km (0.052 R)
• M21: 22,512,385 km (0.114 R)
• M22: 25,294,906 km (0.117 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 985.4

Radius: 8.1

Gravity: 15.02 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 2.75 AU - 3.57 AU

Year: 3877 Days

Day: 9.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 45,503,751 km

• M1: 100,679 km (0.117 R)
• M2: 458,817 km (0.096 R)
• M3: 723,455 km (0.112 R)
• M4: 1,031,477 km (0.106 R)
• M5: 1,762,562 km (0.088 R)
• M6: 2,928,079 km (0.086 R)
• M7: 3,212,465 km (0.096 R)
• M8: 3,494,606 km (0.102 R)
• M9: 4,039,741 km (0.1 R)
• M10: 4,321,134 km (0.052 R)
• M11: 5,135,844 km (0.06 R)
• M12: 5,410,506 km (0.116 R)
• M13: 7,269,858 km (0.107 R)
• M14: 8,723,949 km (0.079 R)
• M15: 9,275,966 km (0.098 R)
• M16: 9,977,131 km (0.076 R)
• M17: 10,362,495 km (0.056 R)
• M18: 10,846,893 km (0.069 R)
• M19: 11,813,445 km (0.027 R)
• M20: 12,293,355 km (0.06 R)
• M21: 14,725,367 km (0.085 R)
• M22: 15,225,174 km (0.103 R)
• M23: 16,141,610 km (0.105 R)
• M24: 18,210,250 km (0.077 R)
• M25: 18,980,828 km (0.101 R)
• M26: 19,639,358 km (0.064 R)
• M27: 19,906,989 km (0.093 R)
• M28: 20,177,013 km (0.097 R)
• M29: 21,564,383 km (0.097 R)
• M30: 26,838,756 km (0.114 R)
• M31: 28,089,244 km (0.117 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 258.2

Radius: 7.4

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 7.56 AU - 8.06 AU

Year: 15066 Days

Day: 15.7 Hours

Environment

Temp: -239 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 45,503,751 km

• M1: 102,923 km (0.033 R)
• M2: 500,704 km (0.085 R)
• M3: 759,808 km (0.104 R)
• M4: 1,110,465 km (0.117 R)
• M5: 2,072,678 km (0.101 R)
• M6: 2,429,769 km (0.1 R)
• M7: 2,998,390 km (0.083 R)
• M8: 4,599,237 km (0.089 R)
• M9: 6,116,010 km (0.116 R)
• M10: 6,477,289 km (0.063 R)
• M11: 8,501,946 km (0.112 R)
• M12: 10,655,108 km (0.112 R)
• M13: 20,026,667 km (0.119 R)
• M14: 23,168,821 km (0.081 R)
• M15: 25,222,351 km (0.098 R)
• M16: 27,007,801 km (0.117 R)
• M17: 27,588,690 km (0.08 R)
• M18: 29,483,197 km (0.07 R)
• M19: 39,273,331 km (0.099 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 495 - 19,832 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit