🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.19

Radius: 1.77

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.59 AU - 0.59 AU

Year: 293 Days

Day: 24.1 Hours

Environment

Temp: -133 °C

Axial Tilt: 22.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,089,224 km

• M1: 79,137 km (0.111 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.94

Radius: 0.98

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.62 AU - 0.64 AU

Year: 323 Days

Day: 35.3 Hours

Environment

Temp: -141 °C

Axial Tilt: 16.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 149.4

Radius: 8.6

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.61 AU - 0.95 AU

Year: 445 Days

Day: 14.7 Hours

Environment

Temp: -137 °C

Axial Tilt: 47.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,089,224 km

• M1: 106,962 km (0.116 R)
• M2: 402,269 km (0.045 R)
• M3: 672,891 km (0.106 R)
• M4: 1,059,003 km (0.115 R)
• M5: 1,413,550 km (0.095 R)
• M6: 1,743,264 km (0.038 R)
• M7: 2,303,957 km (0.086 R)
• M8: 2,764,569 km (0.104 R)
• M9: 3,101,762 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.7

Radius: 14.2

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.76 AU - 1.18 AU

Year: 617 Days

Day: 14.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,089,224 km

• M1: 176,675 km (0.092 R)
• M2: 631,004 km (0.035 R)
• M3: 1,385,875 km (0.113 R)
• M4: 1,897,499 km (0.093 R)
• M5: 2,420,494 km (0.077 R)
• M6: 3,272,603 km (0.101 R)
• M7: 3,958,808 km (0.084 R)
• M8: 4,463,851 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.4

Radius: 8.7

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.29 AU - 2.13 AU

Year: 1444 Days

Day: 5.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,089,224 km

• M1: 108,758 km (0.084 R)
• M2: 396,883 km (0.12 R)
• M3: 775,216 km (0.12 R)
• M4: 1,088,474 km (0.107 R)
• M5: 2,396,408 km (0.1 R)
• M6: 3,389,589 km (0.112 R)
• M7: 3,722,593 km (0.069 R)
• M8: 5,594,811 km (0.119 R)
• M9: 7,689,031 km (0.106 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 904.8

Radius: 3.6

Gravity: 69.81 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 9.17 AU - 9.99 AU

Year: 19145 Days

Day: 18.7 Hours

Environment

Temp: -232 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 81,089,224 km

• M1: 46,076 km (0.11 R)
• M2: 167,998 km (0.113 R)
• M3: 919,578 km (0.115 R)
• M4: 1,151,156 km (0.109 R)
• M5: 2,041,861 km (0.063 R)
• M6: 2,344,199 km (0.041 R)
• M7: 2,506,213 km (0.116 R)
• M8: 5,508,792 km (0.12 R)
• M9: 5,712,544 km (0.112 R)
• M10: 7,331,941 km (0.084 R)
• M11: 8,352,049 km (0.048 R)
• M12: 8,730,382 km (0.107 R)
• M13: 11,506,171 km (0.103 R)
• M14: 12,735,566 km (0.097 R)
• M15: 13,528,584 km (0.1 R)
• M16: 14,507,403 km (0.117 R)
• M17: 14,739,878 km (0.025 R)
• M18: 15,371,780 km (0.103 R)
• M19: 16,436,916 km (0.114 R)
• M20: 18,804,602 km (0.111 R)
• M21: 20,213,365 km (0.118 R)
• M22: 24,748,873 km (0.081 R)
• M23: 27,134,361 km (0.114 R)
• M24: 28,685,392 km (0.103 R)
• M25: 30,674,146 km (0.114 R)
• M26: 41,695,320 km (0.088 R)
• M27: 42,322,434 km (0.104 R)
• M28: 50,345,069 km (0.049 R)
• M29: 51,055,958 km (0.096 R)
• M30: 62,129,791 km (0.114 R)
• M31: 69,970,066 km (0.102 R)
• M32: 70,190,573 km (0.079 R)
• M33: 71,300,440 km (0.061 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 452 - 19,379 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit