🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.45

Radius: 1.43

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.51 AU - 0.55 AU

Year: 139 Days

Day: 34.3 Hours

Environment

Temp: 173 °C

Axial Tilt: 34.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.34

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.64 AU - 0.76 AU

Year: 211 Days

Day: 12.3 Hours

Environment

Temp: 185 °C

Axial Tilt: 42.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 83,549,183 km

• M1: 195,674 km (0.113 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.5

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.8 AU - 2.4 AU

Year: 1095 Days

Day: 38.1 Hours

Environment

Temp: -64 °C

Axial Tilt: 15.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 83,549,183 km

• M1: 718,070 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.8

Radius: 12.7

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 5.29 AU - 7.31 AU

Year: 5691 Days

Day: 6.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 83,549,183 km

• M1: 157,975 km (0.082 R)
• M2: 552,914 km (0.084 R)
• M3: 983,456 km (0.071 R)
• M4: 1,501,065 km (0.093 R)
• M5: 2,267,605 km (0.027 R)
• M6: 2,886,491 km (0.101 R)
• M7: 3,520,636 km (0.105 R)
• M8: 5,366,225 km (0.097 R)
• M9: 8,252,417 km (0.046 R)
• M10: 8,771,073 km (0.089 R)
• M11: 9,571,272 km (0.074 R)
• M12: 11,317,229 km (0.089 R)
• M13: 12,354,690 km (0.115 R)
• M14: 12,896,683 km (0.09 R)
• M15: 13,643,924 km (0.077 R)
• M16: 14,370,671 km (0.111 R)
• M17: 17,146,459 km (0.1 R)
• M18: 20,448,982 km (0.084 R)
• M19: 21,855,202 km (0.11 R)

Planet 5 - Ice Giant

Semi-Major Axis: 17.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 147.1

Radius: 7.8

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 13.86 AU - 21.14 AU

Year: 26347 Days

Day: 16.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 83,549,183 km

• M1: 142,417 km (0.115 R)
• M2: 554,260 km (0.06 R)
• M3: 1,046,587 km (0.094 R)
• M4: 1,572,722 km (0.085 R)
• M5: 1,821,653 km (0.073 R)
• M6: 2,460,586 km (0.093 R)
• M7: 3,289,657 km (0.08 R)
• M8: 5,077,801 km (0.074 R)
• M9: 12,873,046 km (0.073 R)
• M10: 22,245,951 km (0.052 R)
• M11: 23,620,307 km (0.071 R)
• M12: 25,050,313 km (0.104 R)
• M13: 29,037,246 km (0.05 R)
• M14: 31,012,237 km (0.1 R)
• M15: 33,545,677 km (0.118 R)
• M16: 38,759,462 km (0.108 R)
• M17: 43,778,770 km (0.061 R)
• M18: 51,070,020 km (0.052 R)

Planet 6 - Ice Giant

Semi-Major Axis: 19.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 834.9

Radius: 7.2

Gravity: 16.11 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 15.5 AU - 23.34 AU

Year: 30800 Days

Day: 21.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 83,549,183 km

• M1: 90,357 km (0.083 R)
• M2: 455,077 km (0.081 R)
• M3: 1,441,824 km (0.049 R)
• M4: 2,037,224 km (0.071 R)
• M5: 3,410,383 km (0.111 R)
• M6: 5,269,585 km (0.118 R)
• M7: 5,664,523 km (0.085 R)
• M8: 7,283,771 km (0.075 R)
• M9: 12,292,307 km (0.09 R)
• M10: 22,901,938 km (0.108 R)
• M11: 23,481,929 km (0.03 R)
• M12: 28,081,764 km (0.111 R)
• M13: 31,366,485 km (0.12 R)
• M14: 36,132,374 km (0.051 R)
• M15: 37,715,269 km (0.068 R)
• M16: 46,882,925 km (0.091 R)
• M17: 52,077,712 km (0.048 R)
• M18: 55,330,268 km (0.106 R)
• M19: 62,686,744 km (0.044 R)
• M20: 66,129,589 km (0.09 R)
• M21: 77,730,156 km (0.055 R)
• M22: 79,566,171 km (0.08 R)
• M23: 80,895,049 km (0.048 R)
• M24: 86,638,859 km (0.07 R)
• M25: 86,918,906 km (0.072 R)
• M26: 95,009,009 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 20.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 334.8

Radius: 7.3

Gravity: 6.28 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 15.31 AU - 25.29 AU

Year: 32917 Days

Day: 15.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 83,549,183 km

• M1: 107,112 km (0.088 R)
• M2: 401,521 km (0.104 R)
• M3: 809,773 km (0.109 R)
• M4: 2,063,703 km (0.106 R)
• M5: 2,321,759 km (0.059 R)
• M6: 2,625,592 km (0.098 R)
• M7: 2,982,234 km (0.083 R)
• M8: 3,285,020 km (0.071 R)
• M9: 3,669,037 km (0.091 R)
• M10: 4,491,975 km (0.117 R)
• M11: 5,676,042 km (0.078 R)
• M12: 6,588,440 km (0.095 R)
• M13: 6,960,490 km (0.071 R)
• M14: 7,248,615 km (0.095 R)
• M15: 7,746,776 km (0.076 R)
• M16: 11,490,463 km (0.059 R)
• M17: 18,208,155 km (0.115 R)
• M18: 20,368,797 km (0.071 R)
• M19: 22,174,593 km (0.06 R)
• M20: 22,590,026 km (0.119 R)
• M21: 23,222,825 km (0.112 R)
• M22: 23,758,984 km (0.102 R)
• M23: 24,856,285 km (0.108 R)
• M24: 26,564,991 km (0.073 R)
• M25: 30,469,197 km (0.057 R)
• M26: 50,266,979 km (0.1 R)
• M27: 55,428,255 km (0.097 R)
• M28: 67,221,205 km (0.097 R)
• M29: 77,207,162 km (0.049 R)
• M30: 81,562,105 km (0.116 R)

Kuiper Belt

Range: 30.5 - 50.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 171 - 16,120 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit