🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.4

Radius: 10.2

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.72 AU - 0.78 AU

Year: 413 Days

Day: 10.6 Hours

Environment

Temp: -146 °C

Axial Tilt: 108.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 28,861,517 km

• M1: 127,009 km (0.105 R)
• M2: 460,761 km (0.03 R)
• M3: 830,717 km (0.116 R)
• M4: 1,164,021 km (0.05 R)
• M5: 1,704,518 km (0.047 R)
• M6: 2,095,118 km (0.079 R)
• M7: 2,482,876 km (0.074 R)
• M8: 2,815,582 km (0.071 R)
• M9: 3,150,531 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 484.2

Radius: 12.4

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.9 AU - 0.9 AU

Year: 543 Days

Day: 14.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 28,861,517 km

• M1: 154,235 km (0.073 R)
• M2: 547,678 km (0.049 R)
• M3: 955,182 km (0.119 R)
• M4: 1,417,589 km (0.096 R)
• M5: 2,063,852 km (0.095 R)
• M6: 2,552,888 km (0.104 R)
• M7: 2,975,202 km (0.065 R)
• M8: 3,372,834 km (0.113 R)
• M9: 4,070,259 km (0.099 R)
• M10: 4,533,563 km (0.076 R)
• M11: 5,126,569 km (0.092 R)
• M12: 5,516,870 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 856.2

Radius: 10.5

Gravity: 7.77 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.75 AU - 1.13 AU

Year: 579 Days

Day: 12.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 28,861,517 km

• M1: 130,599 km (0.052 R)
• M2: 503,247 km (0.099 R)
• M3: 899,831 km (0.109 R)
• M4: 1,281,605 km (0.066 R)
• M5: 1,668,016 km (0.115 R)
• M6: 2,031,240 km (0.068 R)
• M7: 2,499,631 km (0.061 R)
• M8: 3,198,253 km (0.069 R)
• M9: 5,275,270 km (0.089 R)
• M10: 6,304,054 km (0.03 R)
• M11: 7,089,443 km (0.099 R)
• M12: 7,505,924 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290.8

Radius: 14.3

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1 AU - 1.06 AU

Year: 665 Days

Day: 14.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 28,861,517 km

• M1: 179,966 km (0.12 R)
• M2: 700,268 km (0.032 R)
• M3: 1,611,468 km (0.113 R)
• M4: 3,091,290 km (0.117 R)
• M5: 3,736,057 km (0.113 R)
• M6: 5,108,917 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485.1

Radius: 12.2

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.09 AU - 1.55 AU

Year: 964 Days

Day: 11 Hours

Environment

Temp: -172 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,861,517 km

• M1: 151,692 km (0.07 R)
• M2: 560,394 km (0.057 R)
• M3: 1,116,299 km (0.051 R)
• M4: 1,534,725 km (0.102 R)
• M5: 1,993,541 km (0.104 R)
• M6: 2,554,982 km (0.073 R)
• M7: 3,116,722 km (0.081 R)
• M8: 4,059,637 km (0.079 R)
• M9: 4,539,547 km (0.101 R)
• M10: 5,275,419 km (0.086 R)
• M11: 5,967,908 km (0.069 R)
• M12: 7,605,406 km (0.026 R)
• M13: 8,015,005 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.2

Radius: 10.9

Gravity: 5.89 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.42 AU - 1.98 AU

Year: 1409 Days

Day: 9.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 28,861,517 km

• M1: 140,323 km (0.045 R)
• M2: 591,959 km (0.118 R)
• M3: 1,370,017 km (0.032 R)
• M4: 1,752,389 km (0.064 R)
• M5: 2,468,365 km (0.118 R)
• M6: 2,860,162 km (0.104 R)
• M7: 3,837,335 km (0.084 R)
• M8: 6,344,745 km (0.087 R)
• M9: 8,623,569 km (0.098 R)
• M10: 9,564,689 km (0.09 R)
• M11: 10,011,688 km (0.092 R)
• M12: 11,401,303 km (0.107 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706.9

Radius: 12.6

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 3.37 AU - 4.77 AU

Year: 5221 Days

Day: 13.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 28,861,517 km

• M1: 156,629 km (0.118 R)
• M2: 764,894 km (0.096 R)
• M3: 1,239,269 km (0.066 R)
• M4: 2,278,974 km (0.061 R)
• M5: 2,891,876 km (0.08 R)
• M6: 3,442,696 km (0.096 R)
• M7: 4,157,325 km (0.11 R)
• M8: 4,601,481 km (0.096 R)
• M9: 6,412,812 km (0.077 R)
• M10: 6,805,656 km (0.115 R)
• M11: 7,284,519 km (0.11 R)
• M12: 8,007,675 km (0.098 R)
• M13: 9,018,657 km (0.076 R)
• M14: 10,069,283 km (0.12 R)
• M15: 12,263,136 km (0.064 R)
• M16: 14,367,230 km (0.118 R)
• M17: 15,272,895 km (0.092 R)
• M18: 19,415,111 km (0.048 R)
• M19: 20,381,364 km (0.095 R)
• M20: 22,038,010 km (0.095 R)
• M21: 28,150,729 km (0.102 R)
• M22: 30,753,881 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 28.8

Radius: 4.5

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 9.61 AU - 12.13 AU

Year: 22786 Days

Day: 20.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,861,517 km

• M1: 87,365 km (0.107 R)
• M2: 253,568 km (0.109 R)
• M3: 420,370 km (0.117 R)
• M4: 3,678,312 km (0.068 R)
• M5: 4,796,407 km (0.083 R)
• M6: 9,233,779 km (0.083 R)
• M7: 9,642,780 km (0.106 R)
• M8: 12,305,771 km (0.109 R)
• M9: 14,258,173 km (0.094 R)
• M10: 15,764,773 km (0.063 R)
• M11: 21,548,975 km (0.113 R)
• M12: 22,780,315 km (0.102 R)
• M13: 23,677,304 km (0.077 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 399 - 10,828 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit