🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.6 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.18

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.07 AU - 1.33 AU

Year: 480 Days

Day: 16.8 Hours

Environment

Temp: 8 °C

Axial Tilt: 21.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 30,212,530 km

• M1: 53,706 km (0.102 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.87

Radius: 0.95

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.99 AU - 2.83 AU

Year: 1367 Days

Day: 44.4 Hours

Environment

Temp: -79 °C

Axial Tilt: 14.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.84

Radius: 1.28

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 2.41 AU - 2.49 AU

Year: 1401 Days

Day: 46 Hours

Environment

Temp: -93 °C

Axial Tilt: 29.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.48

Radius: 1.17

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 2.1 AU - 3.2 AU

Year: 1576 Days

Day: 41.7 Hours

Environment

Temp: -86 °C

Axial Tilt: 20 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 30,212,530 km

• M1: 46,525 km (0.042 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.68

Radius: 1.23

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 3.02 AU - 3.04 AU

Year: 1926 Days

Day: 16.6 Hours

Environment

Temp: -111 °C

Axial Tilt: 36.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.16

Radius: 1.06

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 3.43 AU - 3.59 AU

Year: 2402 Days

Day: 16.3 Hours

Environment

Temp: -112 °C

Axial Tilt: 10.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 9.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 689

Radius: 14.5

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 8.88 AU - 9.36 AU

Year: 10060 Days

Day: 5.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 30,212,530 km

• M1: 180,415 km (0.091 R)
• M2: 631,602 km (0.06 R)
• M3: 1,667,418 km (0.091 R)
• M4: 2,402,841 km (0.104 R)
• M5: 3,208,725 km (0.114 R)
• M6: 4,161,663 km (0.103 R)
• M7: 4,675,382 km (0.041 R)
• M8: 5,866,480 km (0.035 R)
• M9: 6,665,483 km (0.12 R)
• M10: 7,536,142 km (0.12 R)
• M11: 7,999,297 km (0.091 R)
• M12: 8,983,053 km (0.047 R)
• M13: 12,422,009 km (0.104 R)
• M14: 13,250,931 km (0.116 R)
• M15: 13,741,013 km (0.099 R)
• M16: 14,243,213 km (0.112 R)
• M17: 17,886,669 km (0.049 R)
• M18: 27,945,780 km (0.088 R)
• M19: 29,889,355 km (0.114 R)
• M20: 30,415,491 km (0.048 R)
• M21: 31,921,642 km (0.112 R)
• M22: 32,582,117 km (0.104 R)
• M23: 34,734,082 km (0.114 R)
• M24: 40,590,091 km (0.106 R)
• M25: 43,079,549 km (0.038 R)

Planet 8 - Gas Giant

Semi-Major Axis: 12.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504.1

Radius: 13.5

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 10.02 AU - 14.02 AU

Year: 15221 Days

Day: 5.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 30,212,530 km

• M1: 167,849 km (0.113 R)
• M2: 835,803 km (0.093 R)
• M3: 1,291,628 km (0.068 R)
• M4: 1,836,164 km (0.069 R)
• M5: 2,809,598 km (0.092 R)
• M6: 3,325,561 km (0.089 R)
• M7: 4,131,744 km (0.101 R)
• M8: 5,440,426 km (0.083 R)
• M9: 6,209,957 km (0.055 R)
• M10: 9,158,232 km (0.096 R)
• M11: 10,141,090 km (0.092 R)
• M12: 10,685,926 km (0.06 R)
• M13: 12,073,745 km (0.101 R)
• M14: 14,925,529 km (0.099 R)
• M15: 15,417,407 km (0.108 R)
• M16: 16,212,220 km (0.107 R)
• M17: 23,492,251 km (0.087 R)
• M18: 29,072,850 km (0.102 R)
• M19: 31,189,810 km (0.119 R)
• M20: 32,696,260 km (0.083 R)
• M21: 34,738,720 km (0.074 R)
• M22: 37,894,936 km (0.111 R)
• M23: 38,417,032 km (0.078 R)
• M24: 39,877,856 km (0.094 R)
• M25: 41,237,700 km (0.095 R)
• M26: 42,628,212 km (0.095 R)
• M27: 43,051,425 km (0.069 R)
• M28: 53,740,941 km (0.054 R)
• M29: 55,065,031 km (0.053 R)
• M30: 56,241,319 km (0.094 R)

Planet 9 - Gas Giant

Semi-Major Axis: 12.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.4

Radius: 13.9

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 9.28 AU - 14.94 AU

Year: 15392 Days

Day: 9.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 111.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 30,212,530 km

• M1: 173,384 km (0.067 R)
• M2: 614,698 km (0.11 R)
• M3: 1,706,762 km (0.118 R)
• M4: 2,228,111 km (0.064 R)
• M5: 4,299,892 km (0.086 R)
• M6: 4,929,399 km (0.038 R)
• M7: 5,677,688 km (0.05 R)
• M8: 8,887,909 km (0.12 R)
• M9: 9,998,374 km (0.118 R)
• M10: 10,520,620 km (0.097 R)
• M11: 11,153,120 km (0.103 R)
• M12: 12,947,546 km (0.039 R)
• M13: 15,209,765 km (0.075 R)
• M14: 18,817,019 km (0.117 R)
• M15: 22,735,286 km (0.05 R)
• M16: 23,564,357 km (0.052 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 434 - 16,088 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit