🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.2

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.63 AU - 0.91 AU

Year: 249 Days

Day: 28.5 Hours

Environment

Temp: 107 °C

Axial Tilt: 44.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 64,626,719 km

• M1: 50,115 km (0.115 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.91

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.96 AU - 1.16 AU

Year: 403 Days

Day: 46.3 Hours

Environment

Temp: 21 °C

Axial Tilt: 16.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 64,626,719 km

• M1: 101,278 km (0.118 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.18 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.07 AU - 1.29 AU

Year: 473 Days

Day: 40.9 Hours

Environment

Temp: 8 °C

Axial Tilt: 30 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.12 AU - 1.7 AU

Year: 618 Days

Day: 36.9 Hours

Environment

Temp: -24 °C

Axial Tilt: 42.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 64,626,719 km

• M1: 16,007 km (0.117 R)
• M2: 49,068 km (0.029 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 506.6

Radius: 14.7

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 4.46 AU - 7.18 AU

Year: 5180 Days

Day: 10.3 Hours

Environment

Temp: -154 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 64,626,719 km

• M1: 182,809 km (0.106 R)
• M2: 1,002,306 km (0.034 R)
• M3: 1,468,004 km (0.119 R)
• M4: 1,947,166 km (0.104 R)
• M5: 2,816,629 km (0.066 R)
• M6: 3,511,062 km (0.028 R)
• M7: 3,976,910 km (0.081 R)
• M8: 5,008,836 km (0.065 R)
• M9: 6,931,767 km (0.08 R)
• M10: 7,498,593 km (0.105 R)
• M11: 10,550,539 km (0.088 R)
• M12: 11,484,329 km (0.102 R)
• M13: 13,212,933 km (0.065 R)
• M14: 14,351,373 km (0.118 R)
• M15: 15,275,139 km (0.079 R)
• M16: 16,470,576 km (0.079 R)
• M17: 17,181,166 km (0.053 R)
• M18: 17,912,251 km (0.111 R)
• M19: 21,741,956 km (0.076 R)
• M20: 23,922,943 km (0.095 R)
• M21: 27,793,340 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 714.6

Radius: 14.1

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 7.57 AU - 8.99 AU

Year: 8791 Days

Day: 14.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 64,626,719 km

• M1: 180,864 km (0.098 R)
• M2: 629,358 km (0.087 R)
• M3: 1,119,740 km (0.08 R)
• M4: 1,617,751 km (0.055 R)
• M5: 2,537,479 km (0.104 R)
• M6: 3,708,232 km (0.045 R)
• M7: 6,605,344 km (0.073 R)
• M8: 8,232,371 km (0.091 R)
• M9: 12,548,120 km (0.092 R)
• M10: 13,539,804 km (0.115 R)
• M11: 15,878,468 km (0.093 R)
• M12: 16,417,618 km (0.109 R)
• M13: 17,819,051 km (0.079 R)
• M14: 18,996,686 km (0.119 R)
• M15: 20,069,003 km (0.078 R)
• M16: 22,418,139 km (0.101 R)
• M17: 24,407,641 km (0.111 R)
• M18: 29,134,485 km (0.068 R)
• M19: 30,250,784 km (0.099 R)
• M20: 30,767,644 km (0.039 R)
• M21: 34,215,576 km (0.109 R)
• M22: 35,572,429 km (0.08 R)
• M23: 40,230,757 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566.8

Radius: 14.4

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 8.08 AU - 12.12 AU

Year: 11843 Days

Day: 5.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 64,626,719 km

• M1: 179,069 km (0.097 R)
• M2: 872,904 km (0.104 R)
• M3: 1,428,660 km (0.08 R)
• M4: 2,169,319 km (0.031 R)
• M5: 2,955,007 km (0.066 R)
• M6: 4,339,086 km (0.11 R)
• M7: 5,423,521 km (0.055 R)
• M8: 6,340,855 km (0.117 R)
• M9: 6,876,416 km (0.112 R)
• M10: 9,040,947 km (0.09 R)
• M11: 12,199,407 km (0.061 R)
• M12: 13,213,830 km (0.095 R)
• M13: 13,773,177 km (0.046 R)
• M14: 14,543,755 km (0.094 R)
• M15: 15,615,624 km (0.077 R)
• M16: 17,174,733 km (0.094 R)
• M17: 20,353,837 km (0.095 R)
• M18: 21,694,683 km (0.073 R)
• M19: 22,650,165 km (0.113 R)
• M20: 25,303,732 km (0.032 R)
• M21: 27,752,499 km (0.043 R)
• M22: 30,355,353 km (0.047 R)
• M23: 45,988,480 km (0.095 R)
• M24: 47,709,753 km (0.109 R)
• M25: 49,622,511 km (0.101 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.3

Radius: 10.7

Gravity: 7.51 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 8.54 AU - 14.02 AU

Year: 13978 Days

Day: 11.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 64,626,719 km

• M1: 134,488 km (0.116 R)
• M2: 509,231 km (0.073 R)
• M3: 857,944 km (0.045 R)
• M4: 1,488,948 km (0.059 R)
• M5: 1,909,467 km (0.115 R)
• M6: 2,266,258 km (0.116 R)
• M7: 3,561,327 km (0.066 R)
• M8: 4,017,900 km (0.118 R)
• M9: 5,296,662 km (0.089 R)
• M10: 5,740,070 km (0.114 R)
• M11: 6,208,162 km (0.098 R)
• M12: 7,400,158 km (0.104 R)
• M13: 8,340,829 km (0.077 R)
• M14: 9,097,196 km (0.078 R)
• M15: 9,518,913 km (0.035 R)
• M16: 15,429,524 km (0.098 R)
• M17: 16,182,899 km (0.083 R)
• M18: 17,439,073 km (0.089 R)
• M19: 18,422,978 km (0.112 R)
• M20: 22,349,323 km (0.113 R)
• M21: 26,693,496 km (0.113 R)
• M22: 29,006,728 km (0.077 R)
• M23: 29,806,628 km (0.069 R)
• M24: 30,974,688 km (0.106 R)
• M25: 31,810,342 km (0.046 R)
• M26: 35,046,293 km (0.033 R)
• M27: 37,545,475 km (0.102 R)
• M28: 38,495,422 km (0.1 R)
• M29: 40,584,855 km (0.106 R)
• M30: 43,784,754 km (0.108 R)
• M31: 49,215,904 km (0.085 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 386 - 10,520 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit