🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 443.3

Radius: 10.4

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.46 AU - 0.59 AU

Year: 254 Days

Day: 10.6 Hours

Environment

Temp: -137 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,223,187 km

• M1: 129,402 km (0.109 R)
• M2: 504,444 km (0.092 R)
• M3: 875,896 km (0.066 R)
• M4: 1,230,592 km (0.094 R)
• M5: 1,682,826 km (0.096 R)
• M6: 2,127,132 km (0.11 R)
• M7: 2,460,735 km (0.06 R)
• M8: 2,785,812 km (0.053 R)
• M9: 3,342,764 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.5

Radius: 10.9

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.87 AU - 1.11 AU

Year: 668 Days

Day: 12.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 54,223,187 km

• M1: 135,536 km (0.113 R)
• M2: 714,330 km (0.066 R)
• M3: 1,063,192 km (0.107 R)
• M4: 2,690,667 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 738.9

Radius: 9

Gravity: 9.12 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.4 AU - 1.5 AU

Year: 1184 Days

Day: 11.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 54,223,187 km

• M1: 111,899 km (0.084 R)
• M2: 479,012 km (0.069 R)
• M3: 1,254,977 km (0.095 R)
• M4: 1,660,536 km (0.085 R)
• M5: 2,065,647 km (0.102 R)
• M6: 2,414,958 km (0.098 R)
• M7: 2,897,112 km (0.097 R)
• M8: 3,277,689 km (0.087 R)
• M9: 4,088,211 km (0.028 R)
• M10: 4,404,311 km (0.087 R)
• M11: 4,793,714 km (0.107 R)
• M12: 5,348,573 km (0.059 R)
• M13: 6,192,155 km (0.089 R)
• M14: 6,777,980 km (0.112 R)
• M15: 7,197,004 km (0.112 R)
• M16: 7,503,081 km (0.119 R)
• M17: 8,418,171 km (0.091 R)
• M18: 8,931,890 km (0.116 R)
• M19: 9,405,817 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619.3

Radius: 8.8

Gravity: 8 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.78 AU - 1.84 AU

Year: 1652 Days

Day: 5.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 148.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 54,223,187 km

• M1: 109,506 km (0.101 R)
• M2: 571,613 km (0.11 R)
• M3: 1,029,084 km (0.054 R)
• M4: 1,546,692 km (0.116 R)
• M5: 2,055,774 km (0.109 R)
• M6: 3,054,789 km (0.117 R)
• M7: 3,440,601 km (0.102 R)
• M8: 4,347,913 km (0.096 R)
• M9: 4,959,917 km (0.077 R)
• M10: 5,516,721 km (0.102 R)
• M11: 5,856,457 km (0.113 R)
• M12: 8,343,372 km (0.082 R)
• M13: 8,852,903 km (0.1 R)
• M14: 9,383,078 km (0.049 R)
• M15: 10,302,057 km (0.083 R)
• M16: 12,204,194 km (0.051 R)
• M17: 12,821,734 km (0.038 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 818.1

Radius: 13.3

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.86 AU - 1.9 AU

Year: 1748 Days

Day: 6.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 54,223,187 km

• M1: 166,054 km (0.098 R)
• M2: 616,194 km (0.07 R)
• M3: 1,234,182 km (0.063 R)
• M4: 1,938,489 km (0.083 R)
• M5: 2,455,499 km (0.076 R)
• M6: 5,334,660 km (0.115 R)
• M7: 5,773,580 km (0.041 R)
• M8: 6,211,603 km (0.106 R)
• M9: 7,265,520 km (0.087 R)
• M10: 8,012,312 km (0.084 R)
• M11: 8,937,126 km (0.093 R)
• M12: 10,069,732 km (0.114 R)
• M13: 10,815,776 km (0.085 R)
• M14: 13,110,458 km (0.119 R)
• M15: 13,913,948 km (0.106 R)
• M16: 15,020,973 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 560.6

Radius: 12.8

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.91 AU - 1.99 AU

Year: 1847 Days

Day: 10.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 54,223,187 km

• M1: 159,172 km (0.116 R)
• M2: 595,998 km (0.086 R)
• M3: 1,351,168 km (0.054 R)
• M4: 1,820,307 km (0.059 R)
• M5: 2,312,334 km (0.071 R)
• M6: 2,879,011 km (0.115 R)
• M7: 3,407,540 km (0.104 R)
• M8: 4,000,397 km (0.058 R)
• M9: 5,594,362 km (0.114 R)
• M10: 6,034,329 km (0.114 R)
• M11: 6,648,279 km (0.092 R)
• M12: 8,744,145 km (0.071 R)
• M13: 9,662,078 km (0.096 R)
• M14: 10,889,827 km (0.062 R)
• M15: 11,394,421 km (0.111 R)
• M16: 12,104,113 km (0.104 R)
• M17: 14,155,848 km (0.042 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 750.7

Radius: 14.1

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 3.13 AU - 3.17 AU

Year: 3792 Days

Day: 10.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 54,223,187 km

• M1: 175,478 km (0.039 R)
• M2: 828,772 km (0.081 R)
• M3: 1,277,865 km (0.101 R)
• M4: 1,736,233 km (0.117 R)
• M5: 2,177,397 km (0.068 R)
• M6: 2,879,310 km (0.084 R)
• M7: 3,981,996 km (0.096 R)
• M8: 4,500,502 km (0.066 R)
• M9: 5,140,781 km (0.081 R)
• M10: 5,674,397 km (0.099 R)
• M11: 8,696,423 km (0.112 R)
• M12: 9,339,993 km (0.045 R)
• M13: 10,055,969 km (0.117 R)
• M14: 11,687,633 km (0.119 R)
• M15: 13,047,178 km (0.115 R)
• M16: 14,985,069 km (0.049 R)
• M17: 25,050,612 km (0.079 R)
• M18: 25,735,920 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 86.7

Radius: 13.8

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 5.03 AU - 5.05 AU

Year: 7674 Days

Day: 14.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 54,223,187 km

• M1: 171,589 km (0.055 R)
• M2: 679,922 km (0.096 R)
• M3: 1,413,700 km (0.116 R)
• M4: 2,080,607 km (0.084 R)
• M5: 2,747,514 km (0.073 R)
• M6: 3,895,229 km (0.083 R)
• M7: 5,488,895 km (0.046 R)
• M8: 6,488,508 km (0.091 R)
• M9: 7,061,468 km (0.064 R)
• M10: 7,699,503 km (0.084 R)
• M11: 9,302,893 km (0.096 R)
• M12: 10,801,116 km (0.11 R)
• M13: 12,153,929 km (0.028 R)
• M14: 12,716,866 km (0.082 R)
• M15: 13,755,524 km (0.037 R)
• M16: 16,156,121 km (0.118 R)
• M17: 17,212,133 km (0.087 R)
• M18: 18,313,472 km (0.087 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 771.8

Radius: 8

Gravity: 12.06 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 4.89 AU - 6.37 AU

Year: 9061 Days

Day: 6.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 54,223,187 km

• M1: 99,632 km (0.116 R)
• M2: 385,065 km (0.076 R)
• M3: 1,236,127 km (0.057 R)
• M4: 1,699,282 km (0.099 R)
• M5: 3,478,749 km (0.111 R)
• M6: 3,962,100 km (0.08 R)
• M7: 4,460,410 km (0.074 R)
• M8: 5,000,010 km (0.091 R)
• M9: 5,582,245 km (0.116 R)
• M10: 6,881,652 km (0.065 R)
• M11: 7,768,767 km (0.088 R)
• M12: 8,730,083 km (0.072 R)
• M13: 9,768,442 km (0.079 R)
• M14: 10,317,466 km (0.106 R)
• M15: 10,573,727 km (0.088 R)
• M16: 11,531,901 km (0.11 R)
• M17: 12,956,971 km (0.066 R)
• M18: 15,879,664 km (0.102 R)
• M19: 18,679,538 km (0.116 R)
• M20: 20,557,141 km (0.112 R)
• M21: 22,557,115 km (0.075 R)
• M22: 22,989,453 km (0.057 R)
• M23: 25,513,917 km (0.069 R)
• M24: 27,919,151 km (0.091 R)
• M25: 28,217,450 km (0.1 R)
• M26: 28,922,056 km (0.099 R)
• M27: 29,741,702 km (0.111 R)
• M28: 42,632,850 km (0.097 R)
• M29: 43,293,923 km (0.087 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 513

Radius: 8

Gravity: 8.02 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 6.65 AU - 8.33 AU

Year: 13903 Days

Day: 23.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 54,223,187 km

• M1: 99,782 km (0.111 R)
• M2: 453,431 km (0.107 R)
• M3: 724,203 km (0.08 R)
• M4: 1,106,725 km (0.087 R)
• M5: 2,044,554 km (0.076 R)
• M6: 2,908,183 km (0.11 R)
• M7: 3,164,145 km (0.094 R)
• M8: 3,668,439 km (0.114 R)
• M9: 4,313,206 km (0.039 R)
• M10: 5,164,268 km (0.095 R)
• M11: 5,541,404 km (0.107 R)
• M12: 5,936,791 km (0.057 R)
• M13: 6,467,116 km (0.08 R)
• M14: 7,321,320 km (0.104 R)
• M15: 9,202,962 km (0.099 R)
• M16: 10,175,647 km (0.071 R)
• M17: 10,769,252 km (0.098 R)
• M18: 12,025,574 km (0.04 R)
• M19: 13,313,313 km (0.088 R)
• M20: 15,659,905 km (0.049 R)
• M21: 18,268,892 km (0.087 R)
• M22: 20,385,403 km (0.077 R)
• M23: 22,660,038 km (0.055 R)
• M24: 26,081,491 km (0.112 R)
• M25: 26,582,494 km (0.048 R)
• M26: 29,615,292 km (0.058 R)
• M27: 46,944,859 km (0.093 R)
• M28: 47,685,967 km (0.076 R)
• M29: 49,802,926 km (0.083 R)
• M30: 53,094,528 km (0.116 R)
• M31: 54,223,244 km (0.078 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 369 - 17,218 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit