🌌 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: 2.46

Radius: 1.43

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.5 AU - 0.56 AU

Year: 142 Days

Day: 25.2 Hours

Environment

Temp: 237 °C

Axial Tilt: 24.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.35

Radius: 0.66

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.7 AU - 1.14 AU

Year: 324 Days

Day: 24.5 Hours

Environment

Temp: 157 °C

Axial Tilt: 6.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 64,203,298 km

• M1: 120,426 km (0.114 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.16

Radius: 1.58

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.14 AU - 1.66 AU

Year: 608 Days

Day: 19.4 Hours

Environment

Temp: -26 °C

Axial Tilt: 8.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.14

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 2.36 AU - 3.54 AU

Year: 1860 Days

Day: 25.9 Hours

Environment

Temp: -112 °C

Axial Tilt: 1.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.15 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148.7

Radius: 8.9

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 4.6 AU - 6.08 AU

Year: 4530 Days

Day: 10.4 Hours

Environment

Temp: -144 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 64,203,298 km

• M1: 110,852 km (0.105 R)
• M2: 518,207 km (0.033 R)
• M3: 822,040 km (0.068 R)
• M4: 1,119,740 km (0.112 R)
• M5: 1,471,594 km (0.036 R)
• M6: 1,753,736 km (0.095 R)
• M7: 2,096,614 km (0.092 R)
• M8: 2,511,748 km (0.053 R)
• M9: 2,996,445 km (0.062 R)
• M10: 3,387,345 km (0.07 R)
• M11: 4,556,602 km (0.052 R)
• M12: 4,919,825 km (0.12 R)
• M13: 5,680,231 km (0.088 R)
• M14: 6,306,897 km (0.113 R)
• M15: 6,596,967 km (0.102 R)
• M16: 7,937,962 km (0.115 R)
• M17: 8,624,616 km (0.086 R)
• M18: 9,048,577 km (0.03 R)
• M19: 10,331,977 km (0.088 R)
• M20: 13,255,568 km (0.043 R)
• M21: 15,374,772 km (0.06 R)
• M22: 16,839,933 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260

Radius: 14.6

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 8.98 AU - 9.8 AU

Year: 10563 Days

Day: 11 Hours

Environment

Temp: -165 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,203,298 km

• M1: 199,264 km (0.07 R)
• M2: 902,225 km (0.077 R)
• M3: 1,377,198 km (0.066 R)
• M4: 2,025,256 km (0.116 R)
• M5: 2,667,928 km (0.092 R)
• M6: 3,380,164 km (0.101 R)
• M7: 4,604,772 km (0.085 R)
• M8: 5,101,886 km (0.118 R)
• M9: 7,611,988 km (0.106 R)
• M10: 10,153,656 km (0.068 R)
• M11: 11,343,408 km (0.073 R)
• M12: 11,844,561 km (0.106 R)
• M13: 14,811,984 km (0.056 R)
• M14: 15,472,309 km (0.097 R)
• M15: 16,152,381 km (0.116 R)
• M16: 16,981,602 km (0.061 R)
• M17: 21,866,422 km (0.098 R)
• M18: 24,091,540 km (0.119 R)
• M19: 24,670,634 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.9

Radius: 8.4

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 7.86 AU - 12.2 AU

Year: 11661 Days

Day: 8 Hours

Environment

Temp: -181 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 64,203,298 km

• M1: 104,419 km (0.119 R)
• M2: 639,082 km (0.117 R)
• M3: 1,009,935 km (0.119 R)
• M4: 1,571,376 km (0.038 R)
• M5: 2,056,971 km (0.1 R)
• M6: 2,343,750 km (0.074 R)
• M7: 2,824,707 km (0.075 R)
• M8: 3,222,189 km (0.074 R)
• M9: 3,500,291 km (0.117 R)
• M10: 3,841,225 km (0.102 R)
• M11: 4,643,069 km (0.07 R)
• M12: 5,256,121 km (0.037 R)
• M13: 6,016,976 km (0.106 R)
• M14: 9,500,512 km (0.102 R)
• M15: 10,075,716 km (0.064 R)
• M16: 12,821,734 km (0.108 R)
• M17: 15,183,137 km (0.068 R)
• M18: 16,592,049 km (0.086 R)
• M19: 17,295,758 km (0.102 R)
• M20: 18,152,954 km (0.089 R)
• M21: 18,900,195 km (0.079 R)
• M22: 29,070,008 km (0.108 R)
• M23: 29,624,567 km (0.083 R)
• M24: 33,605,217 km (0.076 R)
• M25: 34,011,824 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 263.7

Radius: 3.6

Gravity: 20.35 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 14.7 AU - 18.64 AU

Year: 24985 Days

Day: 20.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 64,203,298 km

• M1: 45,179 km (0.082 R)
• M2: 647,460 km (0.062 R)
• M3: 942,766 km (0.08 R)
• M4: 1,211,892 km (0.077 R)
• M5: 1,364,632 km (0.074 R)
• M6: 2,656,559 km (0.085 R)
• M7: 4,120,225 km (0.101 R)
• M8: 4,243,942 km (0.119 R)
• M9: 4,531,619 km (0.05 R)
• M10: 5,852,269 km (0.066 R)
• M11: 6,330,533 km (0.086 R)
• M12: 11,131,877 km (0.061 R)
• M13: 14,182,028 km (0.108 R)
• M14: 17,664,367 km (0.055 R)
• M15: 20,847,660 km (0.087 R)
• M16: 21,213,128 km (0.098 R)
• M17: 22,621,891 km (0.095 R)
• M18: 23,594,875 km (0.054 R)
• M19: 24,494,108 km (0.105 R)
• M20: 26,467,154 km (0.061 R)
• M21: 33,513,663 km (0.05 R)
• M22: 39,724,967 km (0.115 R)
• M23: 41,138,517 km (0.059 R)
• M24: 43,916,250 km (0.055 R)
• M25: 53,845,659 km (0.053 R)
• M26: 56,454,048 km (0.081 R)
• M27: 58,600,478 km (0.101 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 236 - 13,608 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit