🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.32

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.58 AU - 0.68 AU

Year: 191 Days

Day: 37.4 Hours

Environment

Temp: 111 °C

Axial Tilt: 35.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 46,524,499 km

• M1: 45,029 km (0.086 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.48

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.77 AU - 0.99 AU

Year: 316 Days

Day: 33.1 Hours

Environment

Temp: 38 °C

Axial Tilt: 10.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.15

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.94 AU - 0.96 AU

Year: 355 Days

Day: 30.9 Hours

Environment

Temp: 18 °C

Axial Tilt: 38.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.72

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.31 AU - 1.55 AU

Year: 655 Days

Day: 35 Hours

Environment

Temp: -54 °C

Axial Tilt: 3.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.5

Radius: 10

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 3.53 AU - 4.93 AU

Year: 3331 Days

Day: 8.3 Hours

Environment

Temp: -144 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 46,524,499 km

• M1: 124,316 km (0.073 R)
• M2: 453,730 km (0.086 R)
• M3: 808,726 km (0.111 R)
• M4: 1,679,236 km (0.1 R)
• M5: 4,789,525 km (0.101 R)
• M6: 6,523,664 km (0.03 R)
• M7: 6,888,683 km (0.105 R)
• M8: 7,294,991 km (0.056 R)
• M9: 8,066,766 km (0.053 R)
• M10: 8,672,787 km (0.092 R)
• M11: 9,806,140 km (0.117 R)
• M12: 11,936,115 km (0.101 R)
• M13: 12,325,369 km (0.106 R)
• M14: 13,294,613 km (0.104 R)
• M15: 14,931,962 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 245.7

Radius: 9.7

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 3.74 AU - 5.38 AU

Year: 3728 Days

Day: 9.5 Hours

Environment

Temp: -151 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 46,524,499 km

• M1: 120,576 km (0.113 R)
• M2: 509,381 km (0.097 R)
• M3: 1,337,106 km (0.054 R)
• M4: 3,399,761 km (0.079 R)
• M5: 4,176,473 km (0.104 R)
• M6: 4,888,110 km (0.102 R)
• M7: 5,485,455 km (0.072 R)
• M8: 6,365,240 km (0.075 R)
• M9: 8,726,642 km (0.079 R)
• M10: 9,397,738 km (0.091 R)
• M11: 10,654,660 km (0.116 R)
• M12: 11,382,304 km (0.112 R)
• M13: 12,306,968 km (0.111 R)
• M14: 12,808,869 km (0.025 R)
• M15: 14,123,385 km (0.051 R)
• M16: 14,766,806 km (0.103 R)
• M17: 15,964,038 km (0.079 R)
• M18: 17,484,850 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198.3

Radius: 8.4

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 6.02 AU - 7.7 AU

Year: 6879 Days

Day: 6.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 46,524,499 km

• M1: 112,946 km (0.053 R)
• M2: 444,605 km (0.101 R)
• M3: 1,071,570 km (0.102 R)
• M4: 1,714,990 km (0.086 R)
• M5: 2,946,480 km (0.051 R)
• M6: 3,604,411 km (0.098 R)
• M7: 6,924,437 km (0.06 R)
• M8: 10,652,116 km (0.077 R)
• M9: 14,429,612 km (0.028 R)
• M10: 15,056,128 km (0.104 R)
• M11: 16,872,845 km (0.104 R)
• M12: 17,218,117 km (0.067 R)
• M13: 23,263,516 km (0.108 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 230.5

Radius: 15

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 6.03 AU - 9.85 AU

Year: 8566 Days

Day: 5.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 46,524,499 km

• M1: 186,848 km (0.072 R)
• M2: 1,138,589 km (0.047 R)
• M3: 1,878,800 km (0.082 R)
• M4: 2,629,631 km (0.095 R)
• M5: 3,349,197 km (0.075 R)
• M6: 6,355,666 km (0.102 R)
• M7: 7,240,387 km (0.056 R)
• M8: 9,708,303 km (0.075 R)
• M9: 10,747,859 km (0.072 R)
• M10: 13,357,295 km (0.097 R)
• M11: 14,043,949 km (0.113 R)
• M12: 16,305,270 km (0.104 R)
• M13: 21,468,491 km (0.094 R)
• M14: 21,972,935 km (0.08 R)
• M15: 29,892,946 km (0.102 R)

Planet 9 - Gas Giant

Semi-Major Axis: 8.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.6

Radius: 12.2

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 7.8 AU - 9.72 AU

Year: 9927 Days

Day: 6.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 46,524,499 km

• M1: 151,692 km (0.074 R)
• M2: 619,036 km (0.049 R)
• M3: 1,126,622 km (0.111 R)
• M4: 1,628,971 km (0.12 R)
• M5: 2,333,428 km (0.074 R)
• M6: 2,818,723 km (0.096 R)
• M7: 4,183,355 km (0.084 R)
• M8: 5,708,206 km (0.063 R)
• M9: 6,862,054 km (0.101 R)
• M10: 11,364,801 km (0.1 R)
• M11: 15,056,876 km (0.101 R)
• M12: 17,316,402 km (0.111 R)
• M13: 17,896,543 km (0.117 R)
• M14: 22,412,903 km (0.109 R)
• M15: 23,276,830 km (0.112 R)
• M16: 23,983,680 km (0.063 R)
• M17: 28,932,976 km (0.069 R)
• M18: 33,063,972 km (0.072 R)
• M19: 43,000,711 km (0.099 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 537 - 12,407 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit