🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.57

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.59 AU - 0.83 AU

Year: 229 Days

Day: 34.8 Hours

Environment

Temp: 81 °C

Axial Tilt: 32.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.72

Radius: 1.24

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.04 AU - 1.14 AU

Year: 436 Days

Day: 20.9 Hours

Environment

Temp: -12 °C

Axial Tilt: 47.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.24

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.05 AU - 1.45 AU

Year: 535 Days

Day: 43.9 Hours

Environment

Temp: -39 °C

Axial Tilt: 31.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,568,275 km

• M1: 58,343 km (0.085 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.36

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.97 AU - 2.75 AU

Year: 1388 Days

Day: 34.7 Hours

Environment

Temp: -103 °C

Axial Tilt: 5.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.09 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923.2

Radius: 8.1

Gravity: 14.07 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 5.6 AU - 6.04 AU

Year: 5376 Days

Day: 9.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 72,568,275 km

• M1: 100,829 km (0.091 R)
• M2: 388,506 km (0.114 R)
• M3: 1,181,374 km (0.07 R)
• M4: 1,571,825 km (0.074 R)
• M5: 1,868,777 km (0.119 R)
• M6: 2,818,274 km (0.114 R)
• M7: 3,114,777 km (0.097 R)
• M8: 5,151,552 km (0.113 R)
• M9: 6,165,078 km (0.104 R)
• M10: 7,715,809 km (0.039 R)
• M11: 8,419,518 km (0.051 R)
• M12: 8,870,256 km (0.084 R)
• M13: 10,787,951 km (0.09 R)
• M14: 12,021,834 km (0.074 R)
• M15: 14,533,732 km (0.092 R)
• M16: 15,973,911 km (0.083 R)
• M17: 16,664,904 km (0.101 R)
• M18: 18,788,445 km (0.077 R)
• M19: 19,629,185 km (0.099 R)
• M20: 19,914,917 km (0.08 R)
• M21: 20,789,018 km (0.079 R)
• M22: 22,070,623 km (0.099 R)
• M23: 22,379,692 km (0.092 R)
• M24: 23,806,407 km (0.111 R)
• M25: 27,015,730 km (0.082 R)
• M26: 29,092,148 km (0.099 R)
• M27: 30,693,743 km (0.109 R)
• M28: 32,752,210 km (0.1 R)
• M29: 35,005,603 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.5

Radius: 12.9

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 6.55 AU - 6.79 AU

Year: 6596 Days

Day: 14.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 72,568,275 km

• M1: 165,006 km (0.06 R)
• M2: 569,070 km (0.089 R)
• M3: 1,175,241 km (0.069 R)
• M4: 1,621,342 km (0.108 R)
• M5: 2,057,120 km (0.09 R)
• M6: 2,536,133 km (0.076 R)
• M7: 2,988,816 km (0.117 R)
• M8: 3,540,234 km (0.108 R)
• M9: 4,184,402 km (0.115 R)
• M10: 4,710,837 km (0.115 R)
• M11: 6,026,700 km (0.073 R)
• M12: 7,612,587 km (0.079 R)
• M13: 9,112,455 km (0.106 R)
• M14: 10,372,368 km (0.106 R)
• M15: 10,849,586 km (0.045 R)
• M16: 13,741,163 km (0.079 R)
• M17: 14,849,683 km (0.093 R)
• M18: 15,272,895 km (0.116 R)
• M19: 20,849,006 km (0.118 R)
• M20: 25,440,165 km (0.11 R)
• M21: 26,046,934 km (0.089 R)
• M22: 27,199,286 km (0.109 R)
• M23: 29,987,791 km (0.109 R)
• M24: 35,050,482 km (0.111 R)
• M25: 35,586,192 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 51.6

Radius: 11.3

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 7.86 AU - 8.26 AU

Year: 8761 Days

Day: 7.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 72,568,275 km

• M1: 143,464 km (0.047 R)
• M2: 553,063 km (0.074 R)
• M3: 1,042,398 km (0.11 R)
• M4: 1,542,653 km (0.116 R)
• M5: 3,583,168 km (0.114 R)
• M6: 4,610,008 km (0.029 R)
• M7: 5,192,243 km (0.08 R)
• M8: 6,977,843 km (0.12 R)
• M9: 8,571,210 km (0.088 R)
• M10: 9,038,853 km (0.11 R)
• M11: 9,418,084 km (0.08 R)
• M12: 9,808,085 km (0.111 R)
• M13: 10,245,809 km (0.109 R)
• M14: 12,045,920 km (0.097 R)
• M15: 12,463,597 km (0.078 R)
• M16: 14,002,361 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 664.9

Radius: 6

Gravity: 18.47 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 12.99 AU - 13.93 AU

Year: 18908 Days

Day: 15.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 72,568,275 km

• M1: 74,949 km (0.116 R)
• M2: 269,276 km (0.078 R)
• M3: 556,354 km (0.086 R)
• M4: 836,102 km (0.115 R)
• M5: 1,454,540 km (0.11 R)
• M6: 2,297,524 km (0.079 R)
• M7: 2,775,639 km (0.118 R)
• M8: 3,103,557 km (0.076 R)
• M9: 4,341,929 km (0.026 R)
• M10: 5,522,555 km (0.098 R)
• M11: 9,300,350 km (0.062 R)
• M12: 9,861,641 km (0.067 R)
• M13: 10,685,028 km (0.117 R)
• M14: 11,113,476 km (0.046 R)
• M15: 11,809,854 km (0.063 R)
• M16: 13,080,389 km (0.097 R)
• M17: 13,928,310 km (0.067 R)
• M18: 16,048,560 km (0.027 R)
• M19: 17,519,556 km (0.091 R)
• M20: 18,029,386 km (0.093 R)
• M21: 21,393,543 km (0.117 R)
• M22: 24,306,064 km (0.044 R)
• M23: 25,368,657 km (0.07 R)
• M24: 26,130,709 km (0.052 R)
• M25: 27,586,147 km (0.119 R)
• M26: 29,689,642 km (0.111 R)
• M27: 34,875,153 km (0.045 R)
• M28: 39,318,509 km (0.11 R)
• M29: 41,675,573 km (0.115 R)
• M30: 52,746,564 km (0.032 R)
• M31: 59,140,975 km (0.113 R)
• M32: 59,711,990 km (0.101 R)
• M33: 62,819,587 km (0.099 R)
• M34: 63,413,939 km (0.099 R)
• M35: 65,625,594 km (0.079 R)
• M36: 66,442,398 km (0.1 R)
• M37: 66,647,796 km (0.108 R)
• M38: 68,723,616 km (0.077 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 408 - 18,009 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit