🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.21

Radius: 0.54

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.65 AU - 0.69 AU

Year: 354 Days

Day: 25.3 Hours

Environment

Temp: -131 °C

Axial Tilt: 22.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693.8

Radius: 14

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.76 AU - 1.16 AU

Year: 607 Days

Day: 8.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 95,011,548 km

• M1: 174,132 km (0.092 R)
• M2: 656,585 km (0.052 R)
• M3: 1,207,255 km (0.089 R)
• M4: 1,658,292 km (0.069 R)
• M5: 2,105,141 km (0.084 R)
• M6: 2,633,521 km (0.096 R)
• M7: 3,287,712 km (0.096 R)
• M8: 3,837,485 km (0.063 R)
• M9: 4,417,924 km (0.096 R)
• M10: 5,023,347 km (0.084 R)
• M11: 6,073,225 km (0.096 R)
• M12: 7,136,716 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.4

Radius: 13

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.27 AU - 1.65 AU

Year: 1139 Days

Day: 13 Hours

Environment

Temp: -186 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 95,011,548 km

• M1: 161,715 km (0.064 R)
• M2: 781,200 km (0.119 R)
• M3: 1,255,575 km (0.096 R)
• M4: 2,944,385 km (0.105 R)
• M5: 3,526,919 km (0.056 R)
• M6: 4,062,629 km (0.1 R)
• M7: 4,635,888 km (0.103 R)
• M8: 6,474,297 km (0.117 R)
• M9: 7,191,170 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 583.5

Radius: 8.9

Gravity: 7.37 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 2.36 AU - 2.46 AU

Year: 2416 Days

Day: 5.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 95,011,548 km

• M1: 110,702 km (0.105 R)
• M2: 447,746 km (0.053 R)
• M3: 799,002 km (0.063 R)
• M4: 1,206,507 km (0.066 R)
• M5: 1,483,861 km (0.119 R)
• M6: 1,804,300 km (0.052 R)
• M7: 2,121,148 km (0.044 R)
• M8: 2,644,890 km (0.071 R)
• M9: 3,563,272 km (0.079 R)
• M10: 4,366,014 km (0.113 R)
• M11: 5,284,395 km (0.053 R)
• M12: 6,379,003 km (0.055 R)
• M13: 7,890,091 km (0.114 R)
• M14: 9,802,550 km (0.095 R)
• M15: 10,088,581 km (0.074 R)
• M16: 10,528,100 km (0.062 R)
• M17: 11,057,078 km (0.102 R)
• M18: 12,835,497 km (0.094 R)
• M19: 13,264,993 km (0.089 R)
• M20: 14,288,990 km (0.092 R)
• M21: 14,750,200 km (0.094 R)
• M22: 15,221,434 km (0.092 R)
• M23: 16,847,862 km (0.075 R)
• M24: 17,155,585 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 330.3

Radius: 14.7

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 2.28 AU - 3.08 AU

Year: 2833 Days

Day: 7.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 95,011,548 km

• M1: 185,501 km (0.099 R)
• M2: 812,915 km (0.098 R)
• M3: 1,448,407 km (0.079 R)
• M4: 2,091,827 km (0.045 R)
• M5: 3,326,608 km (0.061 R)
• M6: 4,077,589 km (0.099 R)
• M7: 4,687,350 km (0.104 R)
• M8: 5,895,802 km (0.069 R)
• M9: 7,275,244 km (0.093 R)
• M10: 8,206,790 km (0.095 R)
• M11: 8,828,518 km (0.1 R)
• M12: 9,348,371 km (0.117 R)
• M13: 11,032,245 km (0.12 R)
• M14: 11,674,767 km (0.109 R)
• M15: 12,664,956 km (0.093 R)
• M16: 13,796,514 km (0.047 R)
• M17: 15,736,499 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 408.2

Radius: 10.2

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 2.04 AU - 3.32 AU

Year: 2833 Days

Day: 10.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 95,011,548 km

• M1: 127,009 km (0.06 R)
• M2: 497,862 km (0.103 R)
• M3: 893,099 km (0.048 R)
• M4: 1,334,712 km (0.115 R)
• M5: 2,121,747 km (0.105 R)
• M6: 3,393,179 km (0.094 R)
• M7: 4,144,310 km (0.11 R)
• M8: 9,069,670 km (0.076 R)
• M9: 14,934,954 km (0.099 R)
• M10: 16,632,590 km (0.096 R)
• M11: 17,089,313 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.7

Radius: 12.1

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 4.96 AU - 5.9 AU

Year: 8170 Days

Day: 6.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 95,011,548 km

• M1: 150,944 km (0.102 R)
• M2: 606,320 km (0.089 R)
• M3: 1,029,383 km (0.103 R)
• M4: 1,617,602 km (0.103 R)
• M5: 2,191,160 km (0.094 R)
• M6: 2,744,971 km (0.104 R)
• M7: 3,326,309 km (0.059 R)
• M8: 4,211,330 km (0.07 R)
• M9: 5,247,295 km (0.073 R)
• M10: 5,700,277 km (0.048 R)
• M11: 6,179,290 km (0.1 R)
• M12: 6,581,858 km (0.099 R)
• M13: 7,109,788 km (0.062 R)
• M14: 7,514,600 km (0.111 R)
• M15: 9,291,374 km (0.103 R)
• M16: 9,821,250 km (0.035 R)
• M17: 15,112,676 km (0.113 R)
• M18: 15,660,803 km (0.096 R)
• M19: 16,796,849 km (0.101 R)
• M20: 19,232,601 km (0.097 R)
• M21: 22,049,679 km (0.096 R)
• M22: 23,475,795 km (0.08 R)
• M23: 24,046,661 km (0.049 R)
• M24: 27,130,172 km (0.112 R)
• M25: 29,232,770 km (0.104 R)
• M26: 31,245,460 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 30

Radius: 5.1

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 9.16 AU - 10.98 AU

Year: 20633 Days

Day: 15.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 95,011,548 km

• M1: 63,579 km (0.108 R)
• M2: 538,104 km (0.089 R)
• M3: 3,437,609 km (0.074 R)
• M4: 4,317,694 km (0.054 R)
• M5: 7,025,565 km (0.11 R)
• M6: 14,315,020 km (0.107 R)
• M7: 20,313,296 km (0.08 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 351.7

Radius: 4.8

Gravity: 15.26 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 8.81 AU - 11.45 AU

Year: 20818 Days

Day: 24.7 Hours

Environment

Temp: -236 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 95,011,548 km

• M1: 59,690 km (0.086 R)
• M2: 223,948 km (0.099 R)
• M3: 424,260 km (0.055 R)
• M4: 840,291 km (0.065 R)
• M5: 1,263,055 km (0.115 R)
• M6: 1,747,602 km (0.116 R)
• M7: 2,032,437 km (0.083 R)
• M8: 2,626,939 km (0.107 R)
• M9: 4,030,915 km (0.083 R)
• M10: 4,858,789 km (0.115 R)
• M11: 8,063,325 km (0.116 R)
• M12: 8,255,409 km (0.042 R)
• M13: 8,951,937 km (0.106 R)
• M14: 10,291,735 km (0.12 R)
• M15: 11,759,739 km (0.09 R)
• M16: 13,972,591 km (0.05 R)
• M17: 15,322,712 km (0.077 R)
• M18: 16,295,098 km (0.098 R)
• M19: 17,870,214 km (0.093 R)
• M20: 20,153,975 km (0.117 R)
• M21: 21,779,954 km (0.083 R)
• M22: 23,200,236 km (0.119 R)
• M23: 26,751,839 km (0.12 R)
• M24: 28,935,669 km (0.098 R)
• M25: 29,386,258 km (0.09 R)
• M26: 33,160,911 km (0.05 R)
• M27: 37,645,706 km (0.101 R)
• M28: 42,518,258 km (0.063 R)
• M29: 44,729,315 km (0.109 R)
• M30: 53,999,595 km (0.119 R)
• M31: 55,717,278 km (0.109 R)
• M32: 55,890,961 km (0.083 R)
• M33: 56,941,138 km (0.104 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 982.7

Radius: 7.5

Gravity: 17.47 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 10.82 AU - 11.02 AU

Year: 23300 Days

Day: 19.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 95,011,548 km

• M1: 99,782 km (0.1 R)
• M2: 420,071 km (0.026 R)
• M3: 1,063,192 km (0.114 R)
• M4: 1,839,755 km (0.092 R)
• M5: 2,733,751 km (0.042 R)
• M6: 3,381,809 km (0.052 R)
• M7: 3,791,109 km (0.086 R)
• M8: 4,197,866 km (0.051 R)
• M9: 4,521,745 km (0.047 R)
• M10: 5,987,655 km (0.109 R)
• M11: 10,074,369 km (0.109 R)
• M12: 12,390,294 km (0.068 R)
• M13: 15,628,340 km (0.119 R)
• M14: 16,319,931 km (0.052 R)
• M15: 17,122,224 km (0.076 R)
• M16: 18,708,859 km (0.074 R)
• M17: 23,266,658 km (0.107 R)
• M18: 27,881,004 km (0.058 R)
• M19: 30,735,631 km (0.119 R)
• M20: 31,139,395 km (0.112 R)
• M21: 31,546,750 km (0.065 R)
• M22: 31,957,546 km (0.11 R)
• M23: 34,498,017 km (0.082 R)
• M24: 38,245,444 km (0.1 R)
• M25: 43,935,099 km (0.109 R)
• M26: 56,956,697 km (0.097 R)
• M27: 67,459,813 km (0.12 R)
• M28: 69,982,931 km (0.111 R)
• M29: 70,448,330 km (0.071 R)
• M30: 76,688,057 km (0.051 R)
• M31: 77,928,672 km (0.091 R)
• M32: 81,217,133 km (0.081 R)
• M33: 88,883,724 km (0.114 R)
• M34: 89,429,607 km (0.106 R)
• M35: 93,877,152 km (0.115 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 254 - 14,528 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit