🌌 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: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.1

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.54 AU - 0.6 AU

Year: 155 Days

Day: 17.1 Hours

Environment

Temp: 254 °C

Axial Tilt: 3.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.64

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.47 AU - 0.71 AU

Year: 163 Days

Day: 43.4 Hours

Environment

Temp: 228 °C

Axial Tilt: 21.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.11

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.52 AU - 0.86 AU

Year: 206 Days

Day: 39.6 Hours

Environment

Temp: 161 °C

Axial Tilt: 32.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.92

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 3.31 AU - 4.65 AU

Year: 2858 Days

Day: 45.9 Hours

Environment

Temp: -130 °C

Axial Tilt: 25.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 5.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 176.8

Radius: 11.2

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 5.2 AU - 5.22 AU

Year: 4280 Days

Day: 11.1 Hours

Environment

Temp: -144 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 76,780,018 km

• M1: 139,425 km (0.118 R)
• M2: 549,922 km (0.067 R)
• M3: 1,135,747 km (0.066 R)
• M4: 1,593,816 km (0.06 R)
• M5: 2,249,952 km (0.105 R)
• M6: 4,236,761 km (0.093 R)
• M7: 5,037,260 km (0.081 R)
• M8: 6,266,804 km (0.071 R)
• M9: 8,909,002 km (0.077 R)
• M10: 9,758,269 km (0.082 R)
• M11: 15,397,959 km (0.074 R)
• M12: 16,271,461 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 362

Radius: 14.9

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 4.58 AU - 6.24 AU

Year: 4529 Days

Day: 6.4 Hours

Environment

Temp: -133 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 76,780,018 km

• M1: 186,698 km (0.074 R)
• M2: 1,165,517 km (0.073 R)
• M3: 1,840,802 km (0.097 R)
• M4: 2,306,500 km (0.058 R)
• M5: 3,484,284 km (0.095 R)
• M6: 4,361,227 km (0.093 R)
• M7: 5,008,537 km (0.104 R)
• M8: 5,746,054 km (0.072 R)
• M9: 6,353,272 km (0.111 R)
• M10: 7,281,527 km (0.119 R)
• M11: 8,931,292 km (0.092 R)
• M12: 9,483,159 km (0.113 R)
• M13: 12,547,073 km (0.105 R)
• M14: 15,319,121 km (0.085 R)
• M15: 17,493,526 km (0.081 R)
• M16: 19,193,856 km (0.102 R)
• M17: 19,990,913 km (0.063 R)
• M18: 20,873,840 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567.5

Radius: 8.8

Gravity: 7.33 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 7.28 AU - 9.48 AU

Year: 8730 Days

Day: 11.5 Hours

Environment

Temp: -170 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 76,780,018 km

• M1: 115,190 km (0.111 R)
• M2: 595,549 km (0.052 R)
• M3: 1,038,957 km (0.104 R)
• M4: 1,543,551 km (0.07 R)
• M5: 1,867,879 km (0.086 R)
• M6: 2,359,906 km (0.047 R)
• M7: 3,235,652 km (0.068 R)
• M8: 3,675,021 km (0.053 R)
• M9: 4,023,884 km (0.078 R)
• M10: 5,614,109 km (0.108 R)
• M11: 8,404,857 km (0.077 R)
• M12: 8,705,250 km (0.104 R)
• M13: 9,836,808 km (0.108 R)
• M14: 12,611,250 km (0.104 R)
• M15: 13,119,434 km (0.055 R)
• M16: 13,937,286 km (0.033 R)
• M17: 14,237,379 km (0.076 R)
• M18: 15,100,858 km (0.068 R)
• M19: 18,906,478 km (0.096 R)
• M20: 19,497,689 km (0.062 R)
• M21: 20,794,852 km (0.074 R)
• M22: 21,504,544 km (0.089 R)
• M23: 23,815,532 km (0.087 R)
• M24: 29,315,947 km (0.093 R)
• M25: 34,831,022 km (0.113 R)
• M26: 37,889,700 km (0.049 R)
• M27: 40,754,948 km (0.048 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740.1

Radius: 9.6

Gravity: 8.03 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 10.03 AU - 12.51 AU

Year: 13616 Days

Day: 10.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 76,780,018 km

• M1: 166,353 km (0.071 R)
• M2: 533,017 km (0.116 R)
• M3: 963,560 km (0.039 R)
• M4: 2,727,169 km (0.088 R)
• M5: 5,362,186 km (0.06 R)
• M6: 6,104,790 km (0.11 R)
• M7: 7,127,591 km (0.083 R)
• M8: 7,702,645 km (0.105 R)
• M9: 8,746,240 km (0.111 R)
• M10: 11,346,101 km (0.097 R)
• M11: 15,633,127 km (0.036 R)
• M12: 17,933,643 km (0.094 R)
• M13: 18,501,367 km (0.089 R)
• M14: 21,070,710 km (0.11 R)
• M15: 21,885,720 km (0.081 R)
• M16: 22,440,728 km (0.1 R)
• M17: 24,754,708 km (0.051 R)
• M18: 29,626,362 km (0.118 R)
• M19: 32,764,626 km (0.107 R)
• M20: 35,989,657 km (0.096 R)
• M21: 49,887,898 km (0.112 R)
• M22: 56,876,961 km (0.105 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 293.6

Radius: 6.4

Gravity: 7.17 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 18.83 AU - 20.15 AU

Year: 30966 Days

Day: 16.9 Hours

Environment

Temp: -199 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 76,780,018 km

• M1: 79,586 km (0.079 R)
• M2: 376,388 km (0.106 R)
• M3: 581,188 km (0.084 R)
• M4: 885,171 km (0.12 R)
• M5: 1,366,427 km (0.101 R)
• M6: 1,606,083 km (0.075 R)
• M7: 2,712,509 km (0.111 R)
• M8: 2,963,235 km (0.063 R)
• M9: 3,174,766 km (0.092 R)
• M10: 3,933,227 km (0.064 R)
• M11: 4,490,778 km (0.088 R)
• M12: 4,878,835 km (0.083 R)
• M13: 8,042,830 km (0.114 R)
• M14: 9,158,681 km (0.104 R)
• M15: 11,563,317 km (0.079 R)
• M16: 12,023,480 km (0.051 R)
• M17: 18,805,350 km (0.096 R)
• M18: 20,092,041 km (0.079 R)
• M19: 21,338,491 km (0.116 R)
• M20: 24,840,726 km (0.104 R)
• M21: 27,185,075 km (0.111 R)
• M22: 28,469,971 km (0.027 R)
• M23: 29,917,330 km (0.096 R)
• M24: 32,827,458 km (0.039 R)
• M25: 38,039,747 km (0.032 R)
• M26: 42,369,707 km (0.1 R)
• M27: 46,029,021 km (0.118 R)
• M28: 52,527,104 km (0.111 R)
• M29: 62,173,025 km (0.099 R)
• M30: 62,573,648 km (0.109 R)
• M31: 62,975,916 km (0.115 R)
• M32: 67,094,495 km (0.108 R)
• M33: 75,180,560 km (0.052 R)
• M34: 76,780,060 km (0.101 R)

Kuiper Belt

Range: 30.5 - 58.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 473 - 14,167 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit