🌌 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: 2.94

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.51 AU - 0.83 AU

Year: 354 Days

Day: 18.7 Hours

Environment

Temp: -127 °C

Axial Tilt: 26 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 44,482,565 km

• M1: 203,603 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.4

Radius: 10.8

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.78 AU - 0.88 AU

Year: 488 Days

Day: 13.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 103.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,482,565 km

• M1: 134,339 km (0.114 R)
• M2: 480,060 km (0.051 R)
• M3: 921,224 km (0.068 R)
• M4: 1,393,355 km (0.082 R)
• M5: 2,024,358 km (0.1 R)
• M6: 2,795,535 km (0.105 R)
• M7: 3,255,250 km (0.098 R)
• M8: 4,455,025 km (0.111 R)
• M9: 4,823,035 km (0.076 R)
• M10: 5,620,691 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.4

Radius: 11.4

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.21 AU - 1.97 AU

Year: 1295 Days

Day: 14.7 Hours

Environment

Temp: -179 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,482,565 km

• M1: 141,819 km (0.098 R)
• M2: 519,254 km (0.079 R)
• M3: 1,100,592 km (0.113 R)
• M4: 1,486,105 km (0.12 R)
• M5: 1,992,344 km (0.053 R)
• M6: 4,338,637 km (0.111 R)
• M7: 4,759,755 km (0.069 R)
• M8: 6,934,310 km (0.073 R)
• M9: 8,573,304 km (0.084 R)
• M10: 9,382,479 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 275.8

Radius: 13.8

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 2.08 AU - 2.42 AU

Year: 2179 Days

Day: 15 Hours

Environment

Temp: -197 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,482,565 km

• M1: 171,589 km (0.083 R)
• M2: 609,761 km (0.05 R)
• M3: 1,088,624 km (0.069 R)
• M4: 1,771,388 km (0.108 R)
• M5: 2,275,533 km (0.105 R)
• M6: 3,127,493 km (0.09 R)
• M7: 4,009,073 km (0.055 R)
• M8: 5,213,336 km (0.092 R)
• M9: 6,573,630 km (0.031 R)
• M10: 7,639,963 km (0.091 R)
• M11: 8,186,893 km (0.094 R)
• M12: 8,818,645 km (0.045 R)
• M13: 9,267,887 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.4

Radius: 14.2

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 2.48 AU - 2.7 AU

Year: 2691 Days

Day: 9.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 44,482,565 km

• M1: 176,525 km (0.071 R)
• M2: 732,132 km (0.042 R)
• M3: 1,430,754 km (0.116 R)
• M4: 2,007,155 km (0.086 R)
• M5: 2,629,781 km (0.038 R)
• M6: 3,132,131 km (0.063 R)
• M7: 3,660,062 km (0.078 R)
• M8: 4,268,626 km (0.091 R)
• M9: 4,897,236 km (0.099 R)
• M10: 5,902,085 km (0.115 R)
• M11: 6,397,254 km (0.11 R)
• M12: 7,223,034 km (0.089 R)
• M13: 8,944,606 km (0.107 R)
• M14: 11,172,119 km (0.098 R)
• M15: 11,889,889 km (0.086 R)
• M16: 12,414,978 km (0.112 R)
• M17: 13,748,044 km (0.074 R)
• M18: 15,123,896 km (0.101 R)
• M19: 15,740,987 km (0.062 R)
• M20: 17,524,792 km (0.095 R)
• M21: 18,904,384 km (0.113 R)
• M22: 19,500,082 km (0.074 R)
• M23: 20,729,179 km (0.113 R)
• M24: 21,814,062 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.9

Radius: 13.6

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 2.53 AU - 2.87 AU

Year: 2865 Days

Day: 7.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 44,482,565 km

• M1: 169,195 km (0.062 R)
• M2: 696,976 km (0.082 R)
• M3: 1,149,660 km (0.115 R)
• M4: 2,007,903 km (0.089 R)
• M5: 2,443,980 km (0.086 R)
• M6: 3,293,248 km (0.068 R)
• M7: 4,115,437 km (0.1 R)
• M8: 5,182,818 km (0.103 R)
• M9: 6,856,070 km (0.113 R)
• M10: 7,506,372 km (0.1 R)
• M11: 8,074,395 km (0.114 R)
• M12: 9,062,789 km (0.112 R)
• M13: 10,309,986 km (0.055 R)
• M14: 14,149,415 km (0.11 R)
• M15: 14,786,254 km (0.076 R)
• M16: 15,585,106 km (0.058 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 600.4

Radius: 14.6

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 2.93 AU - 3.67 AU

Year: 3871 Days

Day: 10.9 Hours

Environment

Temp: -202 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 44,482,565 km

• M1: 181,612 km (0.078 R)
• M2: 673,639 km (0.04 R)
• M3: 1,406,519 km (0.053 R)
• M4: 2,037,972 km (0.081 R)
• M5: 2,740,633 km (0.119 R)
• M6: 3,314,490 km (0.114 R)
• M7: 3,802,179 km (0.061 R)
• M8: 4,405,657 km (0.08 R)
• M9: 5,670,358 km (0.085 R)
• M10: 6,170,763 km (0.112 R)
• M11: 6,640,350 km (0.053 R)
• M12: 7,718,203 km (0.074 R)
• M13: 8,946,701 km (0.107 R)
• M14: 9,783,402 km (0.09 R)
• M15: 10,465,119 km (0.055 R)
• M16: 10,923,038 km (0.088 R)
• M17: 13,368,963 km (0.091 R)
• M18: 14,463,272 km (0.082 R)
• M19: 15,032,342 km (0.07 R)
• M20: 16,381,565 km (0.099 R)
• M21: 19,569,795 km (0.103 R)
• M22: 22,047,734 km (0.065 R)
• M23: 23,645,290 km (0.038 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 750.4

Radius: 10

Gravity: 7.5 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 5.23 AU - 5.29 AU

Year: 7789 Days

Day: 8.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 44,482,565 km

• M1: 127,607 km (0.027 R)
• M2: 618,737 km (0.089 R)
• M3: 1,069,625 km (0.112 R)
• M4: 1,897,200 km (0.031 R)
• M5: 2,359,158 km (0.077 R)
• M6: 3,394,226 km (0.059 R)
• M7: 4,650,848 km (0.118 R)
• M8: 5,182,818 km (0.094 R)
• M9: 5,527,641 km (0.119 R)
• M10: 5,921,233 km (0.088 R)
• M11: 6,403,986 km (0.101 R)
• M12: 8,304,028 km (0.103 R)
• M13: 10,016,176 km (0.101 R)
• M14: 10,355,613 km (0.092 R)
• M15: 13,296,109 km (0.051 R)
• M16: 17,508,935 km (0.066 R)
• M17: 18,002,309 km (0.093 R)
• M18: 19,840,268 km (0.101 R)
• M19: 21,080,135 km (0.11 R)
• M20: 28,546,116 km (0.062 R)
• M21: 29,625,315 km (0.053 R)
• M22: 31,140,592 km (0.114 R)
• M23: 32,389,435 km (0.104 R)
• M24: 33,133,086 km (0.092 R)
• M25: 35,657,101 km (0.107 R)
• M26: 37,023,528 km (0.076 R)
• M27: 38,188,746 km (0.076 R)
• M28: 40,961,094 km (0.075 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 137.5

Radius: 4.7

Gravity: 6.22 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 5.85 AU - 8.35 AU

Year: 12215 Days

Day: 22.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 44,482,565 km

• M1: 59,091 km (0.109 R)
• M2: 235,916 km (0.055 R)
• M3: 468,690 km (0.095 R)
• M4: 1,527,245 km (0.109 R)
• M5: 2,413,313 km (0.04 R)
• M6: 3,215,157 km (0.104 R)
• M7: 3,620,867 km (0.113 R)
• M8: 4,084,022 km (0.101 R)
• M9: 5,862,890 km (0.096 R)
• M10: 6,175,998 km (0.092 R)
• M11: 6,434,504 km (0.103 R)
• M12: 6,633,020 km (0.106 R)
• M13: 7,360,365 km (0.075 R)
• M14: 8,371,796 km (0.039 R)
• M15: 8,648,403 km (0.084 R)
• M16: 11,180,346 km (0.054 R)
• M17: 12,207,186 km (0.111 R)
• M18: 14,559,463 km (0.109 R)
• M19: 15,961,794 km (0.08 R)
• M20: 16,326,064 km (0.074 R)
• M21: 20,562,377 km (0.088 R)
• M22: 22,322,994 km (0.115 R)
• M23: 25,230,578 km (0.025 R)
• M24: 31,119,798 km (0.105 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 118.1

Radius: 5.3

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 9.57 AU - 11.15 AU

Year: 21531 Days

Day: 19.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 44,482,565 km

• M1: 130,001 km (0.08 R)
• M2: 390,151 km (0.085 R)
• M3: 768,335 km (0.05 R)
• M4: 1,376,300 km (0.071 R)
• M5: 1,858,305 km (0.05 R)
• M6: 2,120,999 km (0.082 R)
• M7: 2,580,862 km (0.118 R)
• M8: 3,451,522 km (0.111 R)
• M9: 3,747,277 km (0.039 R)
• M10: 5,957,885 km (0.084 R)
• M11: 8,642,718 km (0.058 R)
• M12: 14,720,730 km (0.044 R)
• M13: 18,804,153 km (0.111 R)
• M14: 19,029,896 km (0.091 R)
• M15: 27,247,158 km (0.06 R)
• M16: 30,541,452 km (0.116 R)
• M17: 31,483,919 km (0.101 R)
• M18: 33,758,256 km (0.118 R)
• M19: 34,203,459 km (0.118 R)
• M20: 35,105,684 km (0.104 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 164 - 13,615 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit