🌌 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: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.51

Radius: 1.45

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.55 AU - 0.57 AU

Year: 147 Days

Day: 18 Hours

Environment

Temp: 254 °C

Axial Tilt: 29.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 51,390,730 km

• M1: 120,426 km (0.083 R)
• M2: 253,568 km (0.098 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 5

Radius: 1.9

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.51 AU - 0.63 AU

Year: 151 Days

Day: 40.4 Hours

Environment

Temp: 240 °C

Axial Tilt: 10.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 51,390,730 km

• M1: 126,111 km (0.116 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.25

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.56 AU - 0.64 AU

Year: 163 Days

Day: 46.6 Hours

Environment

Temp: 258 °C

Axial Tilt: 28.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 51,390,730 km

• M1: 33,510 km (0.12 R)
• M2: 300,692 km (0.084 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.28

Radius: 1.1

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.07 AU - 2.21 AU

Year: 1095 Days

Day: 31.5 Hours

Environment

Temp: -55 °C

Axial Tilt: 11.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 51,390,730 km

• M1: 37,100 km (0.06 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.63

Radius: 1.85

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 2.93 AU - 4.47 AU

Year: 2490 Days

Day: 36.1 Hours

Environment

Temp: -102 °C

Axial Tilt: 29 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 8.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.6

Radius: 14

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 7.63 AU - 9.75 AU

Year: 8962 Days

Day: 14.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 51,390,730 km

• M1: 174,282 km (0.077 R)
• M2: 767,138 km (0.104 R)
• M3: 1,359,246 km (0.117 R)
• M4: 1,938,788 km (0.116 R)
• M5: 2,761,726 km (0.077 R)
• M6: 3,370,141 km (0.036 R)
• M7: 3,961,800 km (0.094 R)
• M8: 5,517,768 km (0.113 R)
• M9: 6,939,247 km (0.116 R)
• M10: 7,694,716 km (0.094 R)
• M11: 8,862,028 km (0.067 R)
• M12: 10,094,715 km (0.07 R)
• M13: 10,547,099 km (0.099 R)
• M14: 11,601,165 km (0.046 R)
• M15: 15,252,251 km (0.108 R)
• M16: 16,808,518 km (0.098 R)
• M17: 18,319,905 km (0.083 R)
• M18: 19,841,764 km (0.086 R)
• M19: 23,397,257 km (0.115 R)
• M20: 25,463,652 km (0.043 R)
• M21: 30,163,867 km (0.112 R)
• M22: 31,529,995 km (0.113 R)
• M23: 37,889,700 km (0.08 R)
• M24: 38,618,092 km (0.055 R)
• M25: 40,354,026 km (0.085 R)
• M26: 42,141,421 km (0.09 R)
• M27: 43,186,213 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 641.9

Radius: 13

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 9.01 AU - 9.11 AU

Year: 9540 Days

Day: 10.4 Hours

Environment

Temp: -156 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,390,730 km

• M1: 172,935 km (0.103 R)
• M2: 780,003 km (0.113 R)
• M3: 1,210,247 km (0.071 R)
• M4: 1,745,508 km (0.083 R)
• M5: 2,328,192 km (0.109 R)
• M6: 3,352,488 km (0.085 R)
• M7: 4,072,952 km (0.117 R)
• M8: 4,657,431 km (0.115 R)
• M9: 5,202,416 km (0.079 R)
• M10: 5,722,268 km (0.084 R)
• M11: 7,136,866 km (0.098 R)
• M12: 7,615,878 km (0.029 R)
• M13: 8,908,254 km (0.06 R)
• M14: 12,259,695 km (0.101 R)
• M15: 14,216,435 km (0.045 R)
• M16: 18,294,324 km (0.115 R)
• M17: 26,154,944 km (0.115 R)
• M18: 32,417,859 km (0.069 R)
• M19: 35,779,173 km (0.097 R)
• M20: 39,861,998 km (0.12 R)
• M21: 44,112,074 km (0.109 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.4

Radius: 11.4

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 7.35 AU - 11.25 AU

Year: 9922 Days

Day: 9.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 51,390,730 km

• M1: 144,362 km (0.049 R)
• M2: 524,041 km (0.041 R)
• M3: 977,024 km (0.1 R)
• M4: 2,319,515 km (0.065 R)
• M5: 3,011,555 km (0.113 R)
• M6: 3,485,331 km (0.097 R)
• M7: 4,185,898 km (0.041 R)
• M8: 5,153,946 km (0.104 R)
• M9: 5,738,874 km (0.109 R)
• M10: 6,716,496 km (0.099 R)
• M11: 8,040,437 km (0.103 R)
• M12: 8,532,315 km (0.068 R)
• M13: 9,044,089 km (0.067 R)
• M14: 9,531,180 km (0.109 R)
• M15: 10,082,597 km (0.11 R)
• M16: 12,022,433 km (0.082 R)
• M17: 15,537,684 km (0.084 R)
• M18: 16,431,830 km (0.097 R)
• M19: 17,974,783 km (0.082 R)
• M20: 19,248,010 km (0.109 R)
• M21: 20,808,615 km (0.096 R)
• M22: 24,264,326 km (0.038 R)
• M23: 28,648,441 km (0.08 R)
• M24: 29,219,157 km (0.118 R)

Planet 9 - Gas Giant

Semi-Major Axis: 12.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354

Radius: 8

Gravity: 5.53 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 9.82 AU - 15.16 AU

Year: 15443 Days

Day: 10.4 Hours

Environment

Temp: -170 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 51,390,730 km

• M1: 100,979 km (0.115 R)
• M2: 429,495 km (0.072 R)
• M3: 691,591 km (0.027 R)
• M4: 1,189,602 km (0.082 R)
• M5: 1,443,171 km (0.117 R)
• M6: 1,811,929 km (0.071 R)
• M7: 2,697,549 km (0.103 R)
• M8: 3,072,291 km (0.116 R)
• M9: 3,583,019 km (0.109 R)
• M10: 4,528,477 km (0.097 R)
• M11: 6,744,470 km (0.118 R)
• M12: 7,311,446 km (0.103 R)
• M13: 8,221,001 km (0.093 R)
• M14: 8,773,466 km (0.114 R)
• M15: 14,645,332 km (0.12 R)
• M16: 16,298,389 km (0.096 R)
• M17: 16,875,986 km (0.072 R)
• M18: 18,302,551 km (0.091 R)
• M19: 19,403,891 km (0.059 R)
• M20: 21,137,730 km (0.12 R)
• M21: 21,824,684 km (0.066 R)
• M22: 22,173,696 km (0.09 R)
• M23: 24,253,106 km (0.112 R)
• M24: 27,357,711 km (0.113 R)
• M25: 28,483,435 km (0.108 R)
• M26: 31,046,046 km (0.11 R)
• M27: 32,270,505 km (0.095 R)
• M28: 33,411,188 km (0.117 R)
• M29: 37,490,872 km (0.119 R)
• M30: 40,039,421 km (0.11 R)
• M31: 41,356,032 km (0.119 R)
• M32: 45,762,886 km (0.115 R)

Kuiper Belt

Range: 31.4 - 55.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 449 - 15,388 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit