🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.85

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.56 AU - 0.6 AU

Year: 164 Days

Day: 45.7 Hours

Environment

Temp: 216 °C

Axial Tilt: 29.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.48

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.61 AU - 2.31 AU

Year: 1018 Days

Day: 24.3 Hours

Environment

Temp: -71 °C

Axial Tilt: 28.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.1

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.78 AU - 2.52 AU

Year: 1169 Days

Day: 25.3 Hours

Environment

Temp: -76 °C

Axial Tilt: 30 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 88,028,158 km

• M1: 42,187 km (0.047 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.81

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 2.03 AU - 3.21 AU

Year: 1573 Days

Day: 17.3 Hours

Environment

Temp: -92 °C

Axial Tilt: 14.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 88,028,158 km

• M1: 860,936 km (0.098 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.06

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 3.02 AU - 3.18 AU

Year: 2024 Days

Day: 15.6 Hours

Environment

Temp: -105 °C

Axial Tilt: 5.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.3

Radius: 9.1

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 4.92 AU - 6.34 AU

Year: 4954 Days

Day: 13 Hours

Environment

Temp: -150 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 88,028,158 km

• M1: 122,670 km (0.08 R)
• M2: 558,449 km (0.05 R)
• M3: 1,267,393 km (0.116 R)
• M4: 2,291,091 km (0.058 R)
• M5: 4,645,911 km (0.119 R)
• M6: 5,012,576 km (0.104 R)
• M7: 5,448,205 km (0.052 R)
• M8: 6,175,849 km (0.11 R)
• M9: 6,535,183 km (0.105 R)
• M10: 8,887,759 km (0.109 R)
• M11: 10,387,927 km (0.095 R)
• M12: 11,965,137 km (0.097 R)
• M13: 16,569,311 km (0.071 R)
• M14: 19,116,813 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.2

Radius: 13.9

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 5.83 AU - 8.51 AU

Year: 7120 Days

Day: 8.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 88,028,158 km

• M1: 172,935 km (0.06 R)
• M2: 627,264 km (0.106 R)
• M3: 1,170,304 km (0.087 R)
• M4: 1,607,579 km (0.104 R)
• M5: 2,205,372 km (0.107 R)
• M6: 3,505,078 km (0.118 R)
• M7: 4,363,022 km (0.085 R)
• M8: 5,510,587 km (0.106 R)
• M9: 5,956,987 km (0.06 R)
• M10: 6,496,886 km (0.113 R)
• M11: 7,597,627 km (0.104 R)
• M12: 8,152,186 km (0.068 R)
• M13: 13,786,641 km (0.11 R)
• M14: 19,328,344 km (0.075 R)
• M15: 21,205,049 km (0.04 R)
• M16: 24,456,409 km (0.089 R)
• M17: 33,064,570 km (0.093 R)
• M18: 34,869,917 km (0.112 R)
• M19: 35,413,107 km (0.108 R)
• M20: 35,851,728 km (0.084 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.1

Radius: 14.9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 7.38 AU - 8.64 AU

Year: 8407 Days

Day: 12.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 88,028,158 km

• M1: 185,352 km (0.051 R)
• M2: 677,379 km (0.097 R)
• M3: 1,578,706 km (0.106 R)
• M4: 2,560,218 km (0.059 R)
• M5: 3,354,283 km (0.107 R)
• M6: 4,053,953 km (0.087 R)
• M7: 5,326,133 km (0.099 R)
• M8: 6,313,180 km (0.07 R)
• M9: 7,350,491 km (0.116 R)
• M10: 9,315,160 km (0.058 R)
• M11: 9,804,944 km (0.107 R)
• M12: 13,014,117 km (0.069 R)
• M13: 14,420,936 km (0.034 R)
• M14: 15,697,604 km (0.078 R)
• M15: 16,275,650 km (0.077 R)
• M16: 16,748,230 km (0.081 R)
• M17: 18,924,879 km (0.113 R)
• M18: 23,834,232 km (0.097 R)
• M19: 27,072,727 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 113.3

Radius: 4

Gravity: 7.08 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 12.95 AU - 16.75 AU

Year: 21222 Days

Day: 21.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 88,028,158 km

• M1: 51,013 km (0.087 R)
• M2: 211,382 km (0.102 R)
• M3: 347,366 km (0.091 R)
• M4: 744,249 km (0.12 R)
• M5: 1,755,681 km (0.066 R)
• M6: 2,074,773 km (0.086 R)
• M7: 2,724,626 km (0.074 R)
• M8: 3,063,016 km (0.082 R)
• M9: 4,057,693 km (0.111 R)
• M10: 6,294,330 km (0.046 R)
• M11: 9,009,083 km (0.059 R)
• M12: 10,047,292 km (0.097 R)
• M13: 10,595,269 km (0.081 R)
• M14: 10,954,154 km (0.071 R)
• M15: 13,045,234 km (0.096 R)
• M16: 13,757,020 km (0.116 R)
• M17: 15,193,309 km (0.115 R)
• M18: 17,424,262 km (0.119 R)
• M19: 18,802,956 km (0.098 R)
• M20: 21,530,126 km (0.108 R)
• M21: 22,022,602 km (0.069 R)
• M22: 24,598,378 km (0.091 R)
• M23: 25,046,424 km (0.087 R)
• M24: 26,704,118 km (0.101 R)
• M25: 30,543,996 km (0.108 R)
• M26: 31,165,575 km (0.091 R)
• M27: 34,178,177 km (0.118 R)
• M28: 38,449,196 km (0.093 R)
• M29: 40,899,609 km (0.039 R)
• M30: 41,150,185 km (0.093 R)

Planet 10 - Ice Giant

Semi-Major Axis: 16.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 641.4

Radius: 6.6

Gravity: 14.72 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 14.45 AU - 19.31 AU

Year: 25720 Days

Day: 21.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 88,028,158 km

• M1: 134,189 km (0.104 R)
• M2: 545,434 km (0.073 R)
• M3: 2,227,064 km (0.106 R)
• M4: 2,830,841 km (0.091 R)
• M5: 3,329,600 km (0.039 R)
• M6: 3,538,738 km (0.066 R)
• M7: 4,832,011 km (0.114 R)
• M8: 5,881,141 km (0.098 R)
• M9: 6,322,604 km (0.071 R)
• M10: 7,074,334 km (0.078 R)
• M11: 8,754,467 km (0.062 R)
• M12: 9,626,922 km (0.111 R)
• M13: 11,408,483 km (0.103 R)
• M14: 12,235,161 km (0.089 R)
• M15: 12,663,310 km (0.098 R)
• M16: 12,954,128 km (0.103 R)
• M17: 13,624,925 km (0.107 R)
• M18: 14,162,580 km (0.045 R)
• M19: 19,269,103 km (0.074 R)
• M20: 21,042,137 km (0.065 R)
• M21: 22,282,902 km (0.115 R)
• M22: 24,122,956 km (0.118 R)
• M23: 26,889,918 km (0.037 R)
• M24: 43,278,514 km (0.07 R)
• M25: 52,022,061 km (0.076 R)
• M26: 53,711,619 km (0.101 R)
• M27: 55,631,409 km (0.037 R)
• M28: 57,397,861 km (0.119 R)
• M29: 58,395,080 km (0.114 R)
• M30: 59,810,725 km (0.116 R)
• M31: 62,500,195 km (0.088 R)
• M32: 64,623,139 km (0.071 R)
• M33: 74,772,756 km (0.06 R)
• M34: 75,962,059 km (0.079 R)
• M35: 77,163,928 km (0.055 R)
• M36: 84,642,625 km (0.065 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 431 - 14,829 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit