🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 750.8

Radius: 12.2

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.53 AU - 0.55 AU

Year: 265 Days

Day: 8.9 Hours

Environment

Temp: -151 °C

Axial Tilt: 122.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 56,084,196 km

• M1: 152,590 km (0.096 R)
• M2: 611,556 km (0.097 R)
• M3: 991,235 km (0.071 R)
• M4: 1,799,962 km (0.095 R)
• M5: 2,436,949 km (0.11 R)
• M6: 2,827,849 km (0.098 R)
• M7: 3,365,653 km (0.047 R)
• M8: 3,900,166 km (0.114 R)
• M9: 4,388,603 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 446

Radius: 9.4

Gravity: 5.05 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.48 AU - 0.64 AU

Year: 279 Days

Day: 8.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 56,084,196 km

• M1: 116,836 km (0.099 R)
• M2: 482,603 km (0.077 R)
• M3: 859,440 km (0.11 R)
• M4: 1,163,871 km (0.06 R)
• M5: 1,518,568 km (0.096 R)
• M6: 1,856,809 km (0.048 R)
• M7: 2,154,359 km (0.047 R)
• M8: 2,484,222 km (0.035 R)
• M9: 2,784,764 km (0.054 R)
• M10: 3,337,229 km (0.103 R)
• M11: 3,693,871 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488.6

Radius: 14.1

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.44 AU - 0.72 AU

Year: 295 Days

Day: 8 Hours

Environment

Temp: -143 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 56,084,196 km

• M1: 175,329 km (0.093 R)
• M2: 649,554 km (0.111 R)
• M3: 1,166,863 km (0.103 R)
• M4: 1,690,007 km (0.091 R)
• M5: 2,154,509 km (0.099 R)
• M6: 3,537,840 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.5

Radius: 11.2

Gravity: 7.4 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.53 AU - 0.65 AU

Year: 302 Days

Day: 14.6 Hours

Environment

Temp: -149 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 56,084,196 km

• M1: 139,276 km (0.11 R)
• M2: 515,664 km (0.065 R)
• M3: 981,512 km (0.082 R)
• M4: 1,361,789 km (0.043 R)
• M5: 2,079,261 km (0.111 R)
• M6: 2,820,219 km (0.12 R)
• M7: 3,575,090 km (0.115 R)
• M8: 4,076,841 km (0.094 R)
• M9: 4,681,217 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.2

Radius: 12.1

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.97 AU - 1.07 AU

Year: 687 Days

Day: 7.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,084,196 km

• M1: 150,795 km (0.106 R)
• M2: 636,240 km (0.086 R)
• M3: 1,151,754 km (0.091 R)
• M4: 1,935,497 km (0.058 R)
• M5: 3,517,944 km (0.1 R)
• M6: 4,224,644 km (0.11 R)
• M7: 4,707,396 km (0.097 R)
• M8: 5,533,476 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 366.4

Radius: 8.6

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.11 AU - 1.53 AU

Year: 1011 Days

Day: 13.9 Hours

Environment

Temp: -197 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 56,084,196 km

• M1: 118,631 km (0.116 R)
• M2: 428,897 km (0.062 R)
• M3: 788,680 km (0.066 R)
• M4: 1,149,360 km (0.058 R)
• M5: 2,113,668 km (0.066 R)
• M6: 2,683,038 km (0.085 R)
• M7: 3,377,770 km (0.098 R)
• M8: 4,202,803 km (0.066 R)
• M9: 6,771,248 km (0.055 R)
• M10: 7,099,765 km (0.075 R)
• M11: 7,507,868 km (0.071 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 334.9

Radius: 14.4

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.32 AU - 1.88 AU

Year: 1350 Days

Day: 13.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 56,084,196 km

• M1: 179,817 km (0.106 R)
• M2: 653,443 km (0.092 R)
• M3: 1,128,716 km (0.053 R)
• M4: 1,639,742 km (0.065 R)
• M5: 2,152,414 km (0.077 R)
• M6: 2,607,042 km (0.119 R)
• M7: 3,100,266 km (0.055 R)
• M8: 4,005,633 km (0.094 R)
• M9: 5,192,991 km (0.099 R)
• M10: 7,291,400 km (0.1 R)
• M11: 9,417,934 km (0.057 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730.4

Radius: 15

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.24 AU - 1.98 AU

Year: 1362 Days

Day: 5.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 42.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 56,084,196 km

• M1: 189,391 km (0.06 R)
• M2: 697,724 km (0.116 R)
• M3: 1,275,023 km (0.116 R)
• M4: 1,891,665 km (0.108 R)
• M5: 2,466,869 km (0.078 R)
• M6: 3,458,404 km (0.113 R)
• M7: 4,420,916 km (0.091 R)
• M8: 5,219,021 km (0.043 R)
• M9: 5,707,757 km (0.039 R)
• M10: 6,729,062 km (0.106 R)
• M11: 7,232,159 km (0.116 R)
• M12: 9,347,623 km (0.071 R)
• M13: 10,833,878 km (0.113 R)
• M14: 11,921,305 km (0.118 R)
• M15: 12,435,622 km (0.117 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 419.8

Radius: 11.2

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 2.41 AU - 2.85 AU

Year: 2844 Days

Day: 9.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,084,196 km

• M1: 139,575 km (0.064 R)
• M2: 522,845 km (0.057 R)
• M3: 914,193 km (0.112 R)
• M4: 1,668,315 km (0.113 R)
• M5: 2,696,202 km (0.091 R)
• M6: 3,745,332 km (0.054 R)
• M7: 4,826,925 km (0.119 R)
• M8: 5,276,616 km (0.108 R)
• M9: 5,928,115 km (0.114 R)
• M10: 6,418,197 km (0.118 R)
• M11: 10,020,065 km (0.109 R)
• M12: 13,045,084 km (0.085 R)
• M13: 17,038,449 km (0.102 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 738.2

Radius: 6.7

Gravity: 16.44 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 6.54 AU - 7.34 AU

Year: 12192 Days

Day: 24.6 Hours

Environment

Temp: -238 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 56,084,196 km

• M1: 83,625 km (0.039 R)
• M2: 353,649 km (0.081 R)
• M3: 565,779 km (0.11 R)
• M4: 990,188 km (0.043 R)
• M5: 1,312,721 km (0.084 R)
• M6: 1,625,830 km (0.085 R)
• M7: 1,850,376 km (0.115 R)
• M8: 2,343,151 km (0.111 R)
• M9: 2,874,224 km (0.1 R)
• M10: 3,640,614 km (0.06 R)
• M11: 4,291,813 km (0.117 R)
• M12: 5,254,775 km (0.051 R)
• M13: 6,123,041 km (0.115 R)
• M14: 8,186,893 km (0.103 R)
• M15: 8,610,704 km (0.104 R)
• M16: 11,237,343 km (0.103 R)
• M17: 11,761,085 km (0.103 R)
• M18: 12,607,809 km (0.11 R)
• M19: 13,755,375 km (0.111 R)
• M20: 19,127,434 km (0.113 R)
• M21: 21,247,834 km (0.064 R)
• M22: 21,958,275 km (0.069 R)
• M23: 24,472,865 km (0.046 R)
• M24: 26,353,161 km (0.115 R)
• M25: 27,694,007 km (0.085 R)
• M26: 38,507,090 km (0.117 R)
• M27: 43,124,279 km (0.067 R)
• M28: 46,152,888 km (0.084 R)
• M29: 48,859,113 km (0.042 R)
• M30: 53,601,815 km (0.08 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 282 - 13,237 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit