🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.12

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.46 AU - 0.56 AU

Year: 235 Days

Day: 42.4 Hours

Environment

Temp: -118 °C

Axial Tilt: 34.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 26,308,205 km

• M1: 163,211 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 585.9

Radius: 10.3

Gravity: 5.52 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.13 AU - 1.21 AU

Year: 817 Days

Day: 7.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 26,308,205 km

• M1: 128,205 km (0.114 R)
• M2: 617,241 km (0.039 R)
• M3: 982,110 km (0.1 R)
• M4: 1,547,590 km (0.062 R)
• M5: 2,062,655 km (0.031 R)
• M6: 2,521,622 km (0.07 R)
• M7: 3,161,601 km (0.057 R)
• M8: 3,981,099 km (0.112 R)
• M9: 4,530,871 km (0.111 R)
• M10: 5,515,075 km (0.095 R)
• M11: 6,199,037 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.1

Radius: 14

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.22 AU - 1.42 AU

Year: 979 Days

Day: 12.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 26,308,205 km

• M1: 175,179 km (0.082 R)
• M2: 614,398 km (0.119 R)
• M3: 1,146,069 km (0.043 R)
• M4: 1,593,517 km (0.029 R)
• M5: 2,115,015 km (0.066 R)
• M6: 3,322,270 km (0.027 R)
• M7: 4,290,916 km (0.085 R)
• M8: 4,817,799 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 980.9

Radius: 10.5

Gravity: 8.9 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.34 AU - 1.66 AU

Year: 1186 Days

Day: 6.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 26,308,205 km

• M1: 131,347 km (0.106 R)
• M2: 515,215 km (0.079 R)
• M3: 1,001,109 km (0.116 R)
• M4: 1,567,486 km (0.105 R)
• M5: 1,904,530 km (0.03 R)
• M6: 2,302,461 km (0.1 R)
• M7: 2,919,702 km (0.073 R)
• M8: 3,374,778 km (0.114 R)
• M9: 3,792,456 km (0.108 R)
• M10: 4,335,645 km (0.111 R)
• M11: 4,752,126 km (0.039 R)
• M12: 5,236,823 km (0.067 R)
• M13: 5,821,302 km (0.098 R)
• M14: 6,281,764 km (0.101 R)
• M15: 6,891,675 km (0.108 R)
• M16: 7,620,964 km (0.106 R)
• M17: 8,315,098 km (0.103 R)
• M18: 9,080,890 km (0.057 R)
• M19: 9,861,043 km (0.097 R)
• M20: 10,753,095 km (0.1 R)
• M21: 11,236,446 km (0.076 R)
• M22: 11,662,201 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809.3

Radius: 10

Gravity: 8.09 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.67 AU - 1.93 AU

Year: 1559 Days

Day: 10.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 26,308,205 km

• M1: 129,851 km (0.07 R)
• M2: 464,801 km (0.059 R)
• M3: 838,047 km (0.102 R)
• M4: 1,210,546 km (0.098 R)
• M5: 2,182,783 km (0.107 R)
• M6: 3,159,657 km (0.104 R)
• M7: 3,610,096 km (0.089 R)
• M8: 4,580,986 km (0.079 R)
• M9: 5,422,474 km (0.077 R)
• M10: 7,005,219 km (0.028 R)
• M11: 7,410,331 km (0.078 R)
• M12: 7,917,168 km (0.079 R)
• M13: 10,213,645 km (0.111 R)
• M14: 10,770,747 km (0.031 R)
• M15: 11,348,046 km (0.03 R)
• M16: 11,756,747 km (0.112 R)
• M17: 12,841,780 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.7

Radius: 12.4

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.78 AU - 1.92 AU

Year: 1625 Days

Day: 5.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 26,308,205 km

• M1: 154,235 km (0.088 R)
• M2: 1,066,334 km (0.096 R)
• M3: 1,518,418 km (0.055 R)
• M4: 3,559,233 km (0.108 R)
• M5: 4,241,997 km (0.078 R)
• M6: 6,013,834 km (0.113 R)
• M7: 6,904,091 km (0.063 R)
• M8: 7,735,407 km (0.092 R)
• M9: 8,386,606 km (0.098 R)
• M10: 9,563,941 km (0.065 R)
• M11: 10,002,862 km (0.069 R)
• M12: 10,668,572 km (0.11 R)
• M13: 11,177,803 km (0.075 R)
• M14: 11,933,422 km (0.111 R)
• M15: 12,562,332 km (0.072 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 235.5

Radius: 10.2

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 3.25 AU - 5.03 AU

Year: 5439 Days

Day: 10.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 26,308,205 km

• M1: 126,859 km (0.031 R)
• M2: 675,135 km (0.117 R)
• M3: 1,226,553 km (0.066 R)
• M4: 1,637,797 km (0.098 R)
• M5: 2,074,174 km (0.067 R)
• M6: 2,664,936 km (0.114 R)
• M7: 3,147,988 km (0.107 R)
• M8: 4,884,370 km (0.092 R)
• M9: 5,276,466 km (0.077 R)
• M10: 5,636,848 km (0.078 R)
• M11: 6,124,387 km (0.106 R)
• M12: 7,277,488 km (0.097 R)
• M13: 7,627,547 km (0.116 R)
• M14: 8,430,588 km (0.116 R)
• M15: 8,816,999 km (0.056 R)
• M16: 10,165,175 km (0.056 R)
• M17: 10,643,739 km (0.058 R)
• M18: 11,347,447 km (0.079 R)
• M19: 12,393,286 km (0.107 R)
• M20: 14,277,322 km (0.107 R)
• M21: 15,757,593 km (0.091 R)
• M22: 17,963,862 km (0.113 R)
• M23: 21,517,559 km (0.053 R)
• M24: 21,844,281 km (0.099 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 460.6

Radius: 9.4

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 3.74 AU - 5.46 AU

Year: 6370 Days

Day: 7.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 26,308,205 km

• M1: 117,285 km (0.077 R)
• M2: 539,749 km (0.085 R)
• M3: 953,088 km (0.073 R)
• M4: 1,323,492 km (0.062 R)
• M5: 1,724,265 km (0.078 R)
• M6: 2,069,537 km (0.095 R)
• M7: 2,683,935 km (0.112 R)
• M8: 3,542,178 km (0.047 R)
• M9: 4,471,929 km (0.081 R)
• M10: 6,413,560 km (0.104 R)
• M11: 7,935,419 km (0.045 R)
• M12: 8,622,672 km (0.053 R)
• M13: 8,980,959 km (0.061 R)
• M14: 9,769,938 km (0.081 R)
• M15: 10,380,447 km (0.085 R)
• M16: 11,062,314 km (0.118 R)
• M17: 12,017,795 km (0.029 R)
• M18: 12,769,674 km (0.101 R)
• M19: 27,691,015 km (0.027 R)
• M20: 28,123,203 km (0.053 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 66.5

Radius: 5.3

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 7.12 AU - 7.72 AU

Year: 13050 Days

Day: 21.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 26,308,205 km

• M1: 65,973 km (0.111 R)
• M2: 240,254 km (0.092 R)
• M3: 594,053 km (0.116 R)
• M4: 893,997 km (0.095 R)
• M5: 1,342,042 km (0.104 R)
• M6: 2,255,936 km (0.111 R)
• M7: 3,734,561 km (0.098 R)
• M8: 6,659,050 km (0.065 R)
• M9: 8,761,947 km (0.071 R)
• M10: 9,577,854 km (0.106 R)
• M11: 10,699,988 km (0.036 R)
• M12: 11,585,607 km (0.097 R)
• M13: 12,186,991 km (0.058 R)
• M14: 12,471,376 km (0.108 R)
• M15: 18,628,376 km (0.098 R)
• M16: 19,581,763 km (0.053 R)
• M17: 19,906,540 km (0.095 R)
• M18: 21,723,556 km (0.03 R)
• M19: 25,451,684 km (0.076 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 524 - 19,700 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit