🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.86

Radius: 0.94

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.51 AU - 0.65 AU

Year: 281 Days

Day: 37 Hours

Environment

Temp: -126 °C

Axial Tilt: 24.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.56

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.57 AU - 0.67 AU

Year: 310 Days

Day: 39.5 Hours

Environment

Temp: -122 °C

Axial Tilt: 46.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.8

Radius: 12

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.84 AU - 1.34 AU

Year: 724 Days

Day: 12.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 87,704,726 km

• M1: 149,299 km (0.116 R)
• M2: 625,170 km (0.094 R)
• M3: 1,077,254 km (0.069 R)
• M4: 1,489,546 km (0.101 R)
• M5: 2,109,629 km (0.08 R)
• M6: 2,908,033 km (0.097 R)
• M7: 3,313,294 km (0.103 R)
• M8: 4,471,929 km (0.039 R)
• M9: 5,014,969 km (0.118 R)
• M10: 6,293,882 km (0.072 R)
• M11: 6,807,451 km (0.062 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 816.7

Radius: 11.7

Gravity: 5.97 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.49 AU - 2.37 AU

Year: 1705 Days

Day: 13.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 87,704,726 km

• M1: 151,991 km (0.074 R)
• M2: 1,284,298 km (0.053 R)
• M3: 1,804,599 km (0.081 R)
• M4: 2,235,591 km (0.088 R)
• M5: 3,213,213 km (0.03 R)
• M6: 3,607,852 km (0.069 R)
• M7: 5,209,147 km (0.11 R)
• M8: 5,780,611 km (0.081 R)
• M9: 6,676,703 km (0.112 R)
• M10: 7,130,882 km (0.095 R)
• M11: 7,577,282 km (0.115 R)
• M12: 8,312,106 km (0.109 R)
• M13: 8,997,564 km (0.073 R)
• M14: 15,395,715 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.9

Radius: 9.1

Gravity: 10.46 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 2.49 AU - 3.05 AU

Year: 2931 Days

Day: 9 Hours

Environment

Temp: -197 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 87,704,726 km

• M1: 113,246 km (0.045 R)
• M2: 477,367 km (0.076 R)
• M3: 765,193 km (0.08 R)
• M4: 1,361,939 km (0.104 R)
• M5: 1,647,372 km (0.106 R)
• M6: 2,242,622 km (0.04 R)
• M7: 3,221,441 km (0.109 R)
• M8: 3,899,268 km (0.101 R)
• M9: 4,553,310 km (0.068 R)
• M10: 5,053,266 km (0.104 R)
• M11: 6,896,462 km (0.114 R)
• M12: 7,268,512 km (0.053 R)
• M13: 7,752,610 km (0.092 R)
• M14: 8,189,287 km (0.073 R)
• M15: 8,606,964 km (0.056 R)
• M16: 9,829,328 km (0.048 R)
• M17: 10,664,982 km (0.094 R)
• M18: 10,995,593 km (0.081 R)
• M19: 11,852,191 km (0.095 R)
• M20: 12,162,157 km (0.082 R)
• M21: 13,892,107 km (0.078 R)
• M22: 15,358,316 km (0.099 R)
• M23: 15,674,117 km (0.11 R)
• M24: 17,261,799 km (0.111 R)
• M25: 19,624,099 km (0.096 R)
• M26: 20,121,213 km (0.086 R)
• M27: 22,530,038 km (0.073 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 815.5

Radius: 5.3

Gravity: 29.03 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 8.14 AU - 11.4 AU

Year: 19417 Days

Day: 16.8 Hours

Environment

Temp: -234 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 87,704,726 km

• M1: 65,973 km (0.118 R)
• M2: 301,739 km (0.103 R)
• M3: 1,330,224 km (0.12 R)
• M4: 1,586,635 km (0.094 R)
• M5: 1,972,747 km (0.036 R)
• M6: 2,828,297 km (0.113 R)
• M7: 3,395,273 km (0.039 R)
• M8: 3,876,081 km (0.113 R)
• M9: 4,680,469 km (0.049 R)
• M10: 4,861,183 km (0.116 R)
• M11: 5,794,374 km (0.067 R)
• M12: 6,841,559 km (0.12 R)
• M13: 9,134,596 km (0.087 R)
• M14: 9,474,632 km (0.104 R)
• M15: 11,760,936 km (0.029 R)
• M16: 13,425,960 km (0.086 R)
• M17: 13,791,577 km (0.087 R)
• M18: 15,163,240 km (0.099 R)
• M19: 17,301,293 km (0.105 R)
• M20: 19,168,723 km (0.111 R)
• M21: 21,661,622 km (0.066 R)
• M22: 26,816,316 km (0.095 R)
• M23: 28,821,825 km (0.108 R)
• M24: 34,065,530 km (0.101 R)
• M25: 36,273,145 km (0.043 R)
• M26: 37,555,947 km (0.083 R)
• M27: 41,740,050 km (0.099 R)
• M28: 44,104,295 km (0.086 R)
• M29: 47,562,249 km (0.066 R)
• M30: 52,267,850 km (0.08 R)
• M31: 54,086,661 km (0.06 R)
• M32: 59,795,167 km (0.105 R)
• M33: 61,182,687 km (0.096 R)
• M34: 61,985,130 km (0.091 R)
• M35: 72,614,956 km (0.091 R)
• M36: 77,419,441 km (0.075 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 930.8

Radius: 7.4

Gravity: 17 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 10.31 AU - 10.43 AU

Year: 21233 Days

Day: 24.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 87,704,726 km

• M1: 105,766 km (0.063 R)
• M2: 381,774 km (0.119 R)
• M3: 751,729 km (0.059 R)
• M4: 1,303,147 km (0.084 R)
• M5: 1,816,567 km (0.107 R)
• M6: 2,228,859 km (0.094 R)
• M7: 2,529,251 km (0.101 R)
• M8: 3,415,469 km (0.087 R)
• M9: 3,658,566 km (0.081 R)
• M10: 4,823,933 km (0.119 R)
• M11: 7,403,599 km (0.117 R)
• M12: 8,075,742 km (0.059 R)
• M13: 9,720,870 km (0.109 R)
• M14: 10,273,933 km (0.093 R)
• M15: 10,912,716 km (0.072 R)
• M16: 11,510,060 km (0.107 R)
• M17: 11,989,521 km (0.117 R)
• M18: 12,482,297 km (0.115 R)
• M19: 14,119,047 km (0.109 R)
• M20: 15,232,205 km (0.115 R)
• M21: 15,643,599 km (0.069 R)
• M22: 16,231,967 km (0.105 R)
• M23: 18,361,643 km (0.083 R)
• M24: 22,737,680 km (0.064 R)
• M25: 23,275,185 km (0.111 R)
• M26: 30,791,730 km (0.057 R)
• M27: 32,657,215 km (0.107 R)
• M28: 37,797,847 km (0.104 R)
• M29: 38,551,970 km (0.076 R)
• M30: 41,989,430 km (0.034 R)
• M31: 43,124,728 km (0.046 R)
• M32: 48,753,198 km (0.094 R)
• M33: 55,237,518 km (0.109 R)
• M34: 59,391,402 km (0.102 R)
• M35: 60,821,109 km (0.104 R)
• M36: 63,961,617 km (0.081 R)
• M37: 68,537,666 km (0.063 R)
• M38: 70,110,239 km (0.062 R)
• M39: 74,972,020 km (0.105 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 269 - 15,535 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit