🌌 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: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.12

Radius: 0.43

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.51 AU - 0.65 AU

Year: 281 Days

Day: 13.6 Hours

Environment

Temp: -124 °C

Axial Tilt: 73.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 61,105,907 km

• M1: 52,958 km (0.082 R)
• M2: 139,276 km (0.101 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.41

Radius: 0.7

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.49 AU - 0.73 AU

Year: 303 Days

Day: 23.1 Hours

Environment

Temp: -133 °C

Axial Tilt: 24.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832.2

Radius: 12.8

Gravity: 5.08 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.69 AU - 0.93 AU

Year: 464 Days

Day: 10.7 Hours

Environment

Temp: -138 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 61,105,907 km

• M1: 159,172 km (0.082 R)
• M2: 682,017 km (0.107 R)
• M3: 1,219,073 km (0.117 R)
• M4: 1,977,385 km (0.1 R)
• M5: 3,019,932 km (0.076 R)
• M6: 3,658,566 km (0.102 R)
• M7: 4,623,472 km (0.068 R)
• M8: 5,028,583 km (0.11 R)
• M9: 5,786,296 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.7

Radius: 14.8

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.89 AU - 1.07 AU

Year: 617 Days

Day: 8.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,105,907 km

• M1: 184,155 km (0.109 R)
• M2: 692,189 km (0.08 R)
• M3: 1,483,712 km (0.093 R)
• M4: 2,285,257 km (0.103 R)
• M5: 3,160,255 km (0.085 R)
• M6: 3,642,259 km (0.045 R)
• M7: 4,264,886 km (0.11 R)
• M8: 5,199,573 km (0.043 R)
• M9: 5,914,950 km (0.117 R)
• M10: 6,674,608 km (0.084 R)
• M11: 7,275,393 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832.2

Radius: 8.4

Gravity: 11.79 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.18 AU - 1.8 AU

Year: 1156 Days

Day: 8.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 61,105,907 km

• M1: 111,301 km (0.085 R)
• M2: 491,429 km (0.051 R)
• M3: 770,130 km (0.084 R)
• M4: 1,061,397 km (0.097 R)
• M5: 1,427,164 km (0.117 R)
• M6: 1,767,648 km (0.11 R)
• M7: 2,464,924 km (0.116 R)
• M8: 2,809,598 km (0.072 R)
• M9: 3,229,968 km (0.045 R)
• M10: 3,517,644 km (0.069 R)
• M11: 4,844,428 km (0.117 R)
• M12: 5,222,761 km (0.104 R)
• M13: 5,642,084 km (0.043 R)
• M14: 6,083,697 km (0.113 R)
• M15: 6,524,412 km (0.064 R)
• M16: 7,111,434 km (0.103 R)
• M17: 8,334,397 km (0.098 R)
• M18: 8,675,330 km (0.055 R)
• M19: 9,174,089 km (0.102 R)
• M20: 11,960,499 km (0.054 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.2

Radius: 14.8

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.51 AU - 1.67 AU

Year: 1275 Days

Day: 7.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 61,105,907 km

• M1: 185,352 km (0.091 R)
• M2: 1,309,430 km (0.114 R)
• M3: 1,818,362 km (0.113 R)
• M4: 2,304,854 km (0.082 R)
• M5: 3,050,151 km (0.083 R)
• M6: 4,698,720 km (0.08 R)
• M7: 6,164,629 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.2

Radius: 11.1

Gravity: 7.4 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 3.15 AU - 4.67 AU

Year: 4916 Days

Day: 5.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 61,105,907 km

• M1: 139,425 km (0.06 R)
• M2: 613,202 km (0.032 R)
• M3: 1,170,155 km (0.095 R)
• M4: 1,540,409 km (0.071 R)
• M5: 2,375,913 km (0.115 R)
• M6: 3,001,083 km (0.07 R)
• M7: 3,555,792 km (0.108 R)
• M8: 3,962,698 km (0.079 R)
• M9: 4,553,909 km (0.08 R)
• M10: 5,520,909 km (0.107 R)
• M11: 5,975,089 km (0.097 R)
• M12: 6,553,135 km (0.05 R)
• M13: 7,203,287 km (0.053 R)
• M14: 7,971,323 km (0.096 R)
• M15: 8,316,894 km (0.03 R)
• M16: 8,712,580 km (0.102 R)
• M17: 10,153,058 km (0.059 R)
• M18: 10,559,515 km (0.071 R)
• M19: 11,453,811 km (0.102 R)
• M20: 17,328,669 km (0.104 R)
• M21: 19,317,872 km (0.107 R)
• M22: 21,234,520 km (0.097 R)
• M23: 22,887,427 km (0.053 R)
• M24: 23,352,826 km (0.113 R)
• M25: 25,359,981 km (0.116 R)
• M26: 27,829,393 km (0.044 R)
• M27: 32,749,218 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 309.4

Radius: 8

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 10.04 AU - 10.82 AU

Year: 21417 Days

Day: 17.4 Hours

Environment

Temp: -238 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 61,105,907 km

• M1: 101,876 km (0.116 R)
• M2: 1,171,800 km (0.036 R)
• M3: 1,847,534 km (0.11 R)
• M4: 2,331,932 km (0.066 R)
• M5: 2,715,201 km (0.042 R)
• M6: 4,749,732 km (0.118 R)
• M7: 5,439,229 km (0.104 R)
• M8: 5,960,428 km (0.083 R)
• M9: 7,909,838 km (0.051 R)
• M10: 8,287,572 km (0.042 R)
• M11: 8,578,839 km (0.088 R)
• M12: 13,145,614 km (0.115 R)
• M13: 14,568,738 km (0.105 R)
• M14: 18,202,620 km (0.085 R)
• M15: 19,708,173 km (0.079 R)
• M16: 26,146,716 km (0.098 R)
• M17: 26,668,962 km (0.1 R)
• M18: 27,411,865 km (0.103 R)
• M19: 28,059,624 km (0.091 R)
• M20: 28,828,108 km (0.092 R)
• M21: 33,613,594 km (0.104 R)
• M22: 43,543,452 km (0.038 R)
• M23: 48,697,099 km (0.082 R)
• M24: 58,401,662 km (0.084 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 546 - 19,770 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit