🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.97

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.44 AU - 0.66 AU

Year: 185 Days

Day: 31.1 Hours

Environment

Temp: -6 °C

Axial Tilt: 5.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.06

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.73 AU - 0.93 AU

Year: 343 Days

Day: 40 Hours

Environment

Temp: -62 °C

Axial Tilt: 18.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.29

Radius: 0.61

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.99 AU - 1.39 AU

Year: 588 Days

Day: 38.3 Hours

Environment

Temp: -87 °C

Axial Tilt: 10 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 77,681,807 km

• M1: 25,731 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.3

Radius: 8.4

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 2.55 AU - 2.59 AU

Year: 1867 Days

Day: 8 Hours

Environment

Temp: -143 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 77,681,807 km

• M1: 116,836 km (0.108 R)
• M2: 434,432 km (0.074 R)
• M3: 787,483 km (0.083 R)
• M4: 1,807,591 km (0.076 R)
• M5: 2,346,293 km (0.114 R)
• M6: 2,787,308 km (0.06 R)
• M7: 3,222,189 km (0.077 R)
• M8: 5,673,798 km (0.112 R)
• M9: 6,259,624 km (0.076 R)
• M10: 6,586,944 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.9

Radius: 13.6

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 6.23 AU - 6.73 AU

Year: 7473 Days

Day: 7.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 77,681,807 km

• M1: 169,494 km (0.075 R)
• M2: 1,002,904 km (0.084 R)
• M3: 1,465,760 km (0.028 R)
• M4: 1,977,684 km (0.059 R)
• M5: 2,693,061 km (0.105 R)
• M6: 4,520,848 km (0.084 R)
• M7: 5,826,687 km (0.109 R)
• M8: 6,396,057 km (0.099 R)
• M9: 7,965,787 km (0.077 R)
• M10: 9,574,264 km (0.079 R)
• M11: 10,029,340 km (0.093 R)
• M12: 10,805,155 km (0.076 R)
• M13: 14,368,427 km (0.09 R)
• M14: 15,298,925 km (0.096 R)
• M15: 15,750,561 km (0.108 R)
• M16: 17,708,498 km (0.058 R)
• M17: 18,143,828 km (0.075 R)
• M18: 21,185,153 km (0.108 R)
• M19: 21,675,983 km (0.08 R)
• M20: 22,318,357 km (0.032 R)
• M21: 24,398,216 km (0.109 R)
• M22: 26,848,330 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448.6

Radius: 10.8

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 6.77 AU - 11.01 AU

Year: 12008 Days

Day: 9.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 77,681,807 km

• M1: 134,339 km (0.099 R)
• M2: 606,919 km (0.106 R)
• M3: 977,622 km (0.103 R)
• M4: 1,350,420 km (0.077 R)
• M5: 1,758,972 km (0.09 R)
• M6: 2,232,299 km (0.109 R)
• M7: 2,873,326 km (0.119 R)
• M8: 3,319,128 km (0.118 R)
• M9: 3,810,856 km (0.029 R)
• M10: 5,128,215 km (0.116 R)
• M11: 6,281,764 km (0.099 R)
• M12: 11,693,018 km (0.089 R)
• M13: 12,600,629 km (0.034 R)
• M14: 13,071,712 km (0.067 R)
• M15: 14,428,266 km (0.095 R)
• M16: 14,813,929 km (0.055 R)
• M17: 15,206,474 km (0.094 R)
• M18: 16,218,504 km (0.1 R)
• M19: 22,731,396 km (0.078 R)
• M20: 25,894,943 km (0.1 R)
• M21: 30,484,007 km (0.08 R)
• M22: 34,205,254 km (0.12 R)
• M23: 36,768,314 km (0.043 R)
• M24: 37,368,202 km (0.096 R)
• M25: 42,273,516 km (0.088 R)
• M26: 43,999,726 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 526.7

Radius: 3.5

Gravity: 43 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 11.41 AU - 16.43 AU

Year: 23528 Days

Day: 19.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 77,681,807 km

• M1: 43,533 km (0.107 R)
• M2: 385,963 km (0.111 R)
• M3: 637,137 km (0.108 R)
• M4: 762,500 km (0.057 R)
• M5: 963,709 km (0.06 R)
• M6: 1,285,943 km (0.091 R)
• M7: 1,976,487 km (0.107 R)
• M8: 2,268,053 km (0.096 R)
• M9: 4,684,508 km (0.032 R)
• M10: 5,673,200 km (0.091 R)
• M11: 6,793,239 km (0.101 R)
• M12: 7,213,011 km (0.112 R)
• M13: 7,799,435 km (0.115 R)
• M14: 8,629,703 km (0.035 R)
• M15: 10,525,108 km (0.077 R)
• M16: 10,834,626 km (0.08 R)
• M17: 11,150,128 km (0.053 R)
• M18: 11,999,096 km (0.087 R)
• M19: 12,960,561 km (0.032 R)
• M20: 14,497,380 km (0.102 R)
• M21: 16,563,177 km (0.108 R)
• M22: 19,456,699 km (0.105 R)
• M23: 19,642,200 km (0.056 R)
• M24: 19,828,899 km (0.116 R)
• M25: 23,920,999 km (0.082 R)
• M26: 28,422,399 km (0.084 R)
• M27: 29,507,582 km (0.108 R)
• M28: 30,370,462 km (0.102 R)
• M29: 32,405,741 km (0.1 R)
• M30: 34,665,866 km (0.104 R)
• M31: 51,699,229 km (0.096 R)
• M32: 53,313,390 km (0.114 R)
• M33: 53,494,852 km (0.078 R)
• M34: 53,676,614 km (0.1 R)
• M35: 55,331,465 km (0.119 R)
• M36: 57,590,393 km (0.118 R)
• M37: 59,324,382 km (0.082 R)
• M38: 68,304,443 km (0.096 R)
• M39: 69,163,135 km (0.077 R)
• M40: 72,892,610 km (0.11 R)
• M41: 74,466,379 km (0.083 R)
• M42: 74,693,170 km (0.104 R)
• M43: 76,753,880 km (0.114 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: 534 - 16,891 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit