🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.14

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.74 AU - 1.02 AU

Year: 303 Days

Day: 44.8 Hours

Environment

Temp: 83 °C

Axial Tilt: 32.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.98

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.97 AU - 0.99 AU

Year: 356 Days

Day: 28.5 Hours

Environment

Temp: 19 °C

Axial Tilt: 27.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 83,006,908 km

• M1: 173,085 km (0.11 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.63 AU - 1.69 AU

Year: 785 Days

Day: 32.1 Hours

Environment

Temp: -40 °C

Axial Tilt: 38.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 83,006,908 km

• M1: 52,210 km (0.107 R)
• M2: 621,130 km (0.116 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.32

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.74 AU - 2.82 AU

Year: 1264 Days

Day: 38.4 Hours

Environment

Temp: -84 °C

Axial Tilt: 14.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 2.48 AU - 2.9 AU

Year: 1620 Days

Day: 44.6 Hours

Environment

Temp: -87 °C

Axial Tilt: 13.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 83,006,908 km

• M1: 719,865 km (0.042 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 425.9

Radius: 9.5

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 4.55 AU - 6.09 AU

Year: 4504 Days

Day: 7.6 Hours

Environment

Temp: -139 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 83,006,908 km

• M1: 118,332 km (0.046 R)
• M2: 436,527 km (0.068 R)
• M3: 916,736 km (0.114 R)
• M4: 1,420,432 km (0.059 R)
• M5: 1,890,468 km (0.103 R)
• M6: 2,297,973 km (0.117 R)
• M7: 2,617,664 km (0.115 R)
• M8: 3,019,483 km (0.032 R)
• M9: 4,737,465 km (0.047 R)
• M10: 5,521,209 km (0.085 R)
• M11: 6,156,850 km (0.11 R)
• M12: 9,851,169 km (0.111 R)
• M13: 10,372,518 km (0.06 R)
• M14: 10,744,119 km (0.061 R)
• M15: 11,601,764 km (0.117 R)
• M16: 13,211,586 km (0.042 R)
• M17: 14,912,963 km (0.074 R)
• M18: 15,654,370 km (0.059 R)
• M19: 16,420,161 km (0.03 R)
• M20: 17,153,341 km (0.115 R)
• M21: 19,359,760 km (0.086 R)
• M22: 22,702,075 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244.3

Radius: 9.7

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 10.56 AU - 11.12 AU

Year: 13101 Days

Day: 11.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 83,006,908 km

• M1: 127,308 km (0.097 R)
• M2: 450,140 km (0.096 R)
• M3: 937,231 km (0.03 R)
• M4: 1,306,289 km (0.098 R)
• M5: 1,687,614 km (0.104 R)
• M6: 2,093,921 km (0.12 R)
• M7: 3,892,836 km (0.077 R)
• M8: 4,387,706 km (0.104 R)
• M9: 4,865,521 km (0.03 R)
• M10: 5,631,163 km (0.075 R)
• M11: 6,127,828 km (0.112 R)
• M12: 9,698,430 km (0.045 R)
• M13: 10,808,147 km (0.085 R)
• M14: 13,920,231 km (0.08 R)
• M15: 16,167,341 km (0.092 R)
• M16: 16,497,653 km (0.11 R)
• M17: 17,723,608 km (0.114 R)
• M18: 19,009,401 km (0.116 R)
• M19: 20,974,968 km (0.092 R)
• M20: 22,740,971 km (0.11 R)
• M21: 23,239,281 km (0.092 R)
• M22: 26,383,828 km (0.108 R)
• M23: 26,934,199 km (0.11 R)
• M24: 29,505,786 km (0.037 R)
• M25: 30,800,556 km (0.117 R)
• M26: 31,104,688 km (0.113 R)
• M27: 34,256,865 km (0.096 R)
• M28: 37,155,773 km (0.027 R)
• M29: 40,093,875 km (0.025 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 395.4

Radius: 6.5

Gravity: 9.36 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 16.57 AU - 21.09 AU

Year: 29995 Days

Day: 24.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 83,006,908 km

• M1: 80,783 km (0.108 R)
• M2: 323,281 km (0.114 R)
• M3: 556,504 km (0.112 R)
• M4: 837,898 km (0.12 R)
• M5: 1,805,497 km (0.073 R)
• M6: 3,088,149 km (0.109 R)
• M7: 3,311,498 km (0.12 R)
• M8: 4,213,574 km (0.112 R)
• M9: 4,453,828 km (0.115 R)
• M10: 5,114,302 km (0.083 R)
• M11: 5,348,423 km (0.071 R)
• M12: 6,180,935 km (0.098 R)
• M13: 6,906,784 km (0.039 R)
• M14: 8,152,486 km (0.028 R)
• M15: 10,322,702 km (0.089 R)
• M16: 13,727,699 km (0.042 R)
• M17: 16,093,889 km (0.118 R)
• M18: 16,682,706 km (0.111 R)
• M19: 18,082,643 km (0.065 R)
• M20: 21,313,807 km (0.073 R)
• M21: 23,813,587 km (0.074 R)
• M22: 28,769,017 km (0.075 R)
• M23: 30,265,444 km (0.078 R)
• M24: 33,957,669 km (0.102 R)
• M25: 35,769,599 km (0.096 R)
• M26: 37,206,636 km (0.1 R)
• M27: 39,889,375 km (0.107 R)
• M28: 40,656,812 km (0.096 R)
• M29: 43,501,415 km (0.084 R)
• M30: 45,803,577 km (0.072 R)
• M31: 46,476,019 km (0.118 R)
• M32: 49,936,966 km (0.105 R)
• M33: 51,548,883 km (0.103 R)
• M34: 57,756,447 km (0.095 R)
• M35: 62,365,707 km (0.081 R)
• M36: 63,191,637 km (0.119 R)
• M37: 63,815,759 km (0.036 R)
• M38: 65,925,986 km (0.075 R)
• M39: 71,404,410 km (0.094 R)
• M40: 72,308,131 km (0.059 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 456 - 11,695 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit