🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.55

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.58 AU - 0.62 AU

Year: 300 Days

Day: 22.6 Hours

Environment

Temp: -122 °C

Axial Tilt: 38.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 394.2

Radius: 9

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.96 AU - 0.98 AU

Year: 617 Days

Day: 14.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 58,326,670 km

• M1: 111,899 km (0.069 R)
• M2: 399,426 km (0.051 R)
• M3: 771,177 km (0.065 R)
• M4: 1,547,590 km (0.117 R)
• M5: 2,059,364 km (0.117 R)
• M6: 2,355,568 km (0.106 R)
• M7: 2,649,528 km (0.096 R)
• M8: 3,183,143 km (0.068 R)
• M9: 3,506,873 km (0.106 R)
• M10: 3,786,771 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569.7

Radius: 11.9

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.93 AU - 2.35 AU

Year: 2021 Days

Day: 11.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,326,670 km

• M1: 148,700 km (0.118 R)
• M2: 661,372 km (0.064 R)
• M3: 1,664,426 km (0.097 R)
• M4: 2,476,443 km (0.099 R)
• M5: 2,951,117 km (0.032 R)
• M6: 4,370,951 km (0.053 R)
• M7: 4,877,190 km (0.113 R)
• M8: 6,008,000 km (0.06 R)
• M9: 6,557,772 km (0.071 R)
• M10: 10,591,529 km (0.086 R)
• M11: 13,001,850 km (0.109 R)
• M12: 13,457,525 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 376.1

Radius: 8.9

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.14 AU - 2.24 AU

Year: 2093 Days

Day: 7.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 58,326,670 km

• M1: 110,852 km (0.109 R)
• M2: 415,134 km (0.087 R)
• M3: 937,380 km (0.087 R)
• M4: 1,361,191 km (0.058 R)
• M5: 1,974,243 km (0.056 R)
• M6: 2,320,113 km (0.1 R)
• M7: 2,665,535 km (0.086 R)
• M8: 3,365,653 km (0.093 R)
• M9: 4,878,686 km (0.059 R)
• M10: 5,808,137 km (0.099 R)
• M11: 6,424,929 km (0.091 R)
• M12: 7,006,267 km (0.12 R)
• M13: 7,567,259 km (0.1 R)
• M14: 7,901,161 km (0.087 R)
• M15: 10,048,639 km (0.097 R)
• M16: 10,555,027 km (0.039 R)
• M17: 10,832,083 km (0.091 R)
• M18: 13,066,925 km (0.073 R)
• M19: 13,426,708 km (0.086 R)
• M20: 13,834,362 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 985.6

Radius: 13.1

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 2.4 AU - 3.48 AU

Year: 3255 Days

Day: 8.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 58,326,670 km

• M1: 163,361 km (0.085 R)
• M2: 920,924 km (0.108 R)
• M3: 1,420,581 km (0.071 R)
• M4: 2,465,971 km (0.114 R)
• M5: 3,597,829 km (0.097 R)
• M6: 4,191,433 km (0.086 R)
• M7: 5,101,437 km (0.116 R)
• M8: 6,226,563 km (0.111 R)
• M9: 8,162,808 km (0.082 R)
• M10: 9,423,768 km (0.092 R)
• M11: 10,389,423 km (0.08 R)
• M12: 11,914,423 km (0.039 R)
• M13: 12,611,848 km (0.114 R)
• M14: 13,043,289 km (0.091 R)
• M15: 13,784,397 km (0.04 R)
• M16: 16,974,571 km (0.061 R)
• M17: 17,383,123 km (0.08 R)
• M18: 19,398,805 km (0.063 R)
• M19: 21,430,045 km (0.044 R)
• M20: 23,097,313 km (0.053 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71

Radius: 13.6

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 2.81 AU - 3.81 AU

Year: 3888 Days

Day: 10 Hours

Environment

Temp: -213 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,326,670 km

• M1: 169,345 km (0.055 R)
• M2: 744,249 km (0.058 R)
• M3: 2,072,978 km (0.091 R)
• M4: 3,854,838 km (0.111 R)
• M5: 4,528,178 km (0.041 R)
• M6: 5,258,515 km (0.088 R)
• M7: 6,178,542 km (0.11 R)
• M8: 7,053,839 km (0.074 R)
• M9: 11,608,795 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479

Radius: 9.3

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 3.44 AU - 5 AU

Year: 5597 Days

Day: 13.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 58,326,670 km

• M1: 118,482 km (0.066 R)
• M2: 426,354 km (0.089 R)
• M3: 1,682,527 km (0.029 R)
• M4: 3,009,311 km (0.085 R)
• M5: 9,285,390 km (0.107 R)
• M6: 9,777,268 km (0.039 R)
• M7: 13,101,782 km (0.103 R)
• M8: 13,616,398 km (0.044 R)
• M9: 14,851,179 km (0.032 R)
• M10: 15,753,105 km (0.112 R)
• M11: 16,750,922 km (0.11 R)
• M12: 17,480,362 km (0.094 R)
• M13: 23,565,255 km (0.113 R)
• M14: 24,326,559 km (0.096 R)
• M15: 24,869,150 km (0.118 R)
• M16: 28,551,950 km (0.117 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820.8

Radius: 14.3

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 3.59 AU - 5.23 AU

Year: 5980 Days

Day: 14.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 58,326,670 km

• M1: 178,021 km (0.111 R)
• M2: 831,914 km (0.104 R)
• M3: 1,356,105 km (0.07 R)
• M4: 1,912,010 km (0.106 R)
• M5: 3,911,087 km (0.113 R)
• M6: 4,699,468 km (0.082 R)
• M7: 8,789,025 km (0.076 R)
• M8: 10,562,507 km (0.082 R)
• M9: 11,285,663 km (0.059 R)
• M10: 11,785,919 km (0.048 R)
• M11: 15,591,389 km (0.106 R)
• M12: 16,657,573 km (0.074 R)
• M13: 19,005,362 km (0.049 R)
• M14: 25,783,941 km (0.115 R)
• M15: 26,830,079 km (0.064 R)
• M16: 28,268,911 km (0.096 R)
• M17: 30,234,478 km (0.09 R)
• M18: 32,995,157 km (0.092 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 631.1

Radius: 5.5

Gravity: 20.86 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 6.6 AU - 8.94 AU

Year: 13984 Days

Day: 15.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 58,326,670 km

• M1: 68,516 km (0.117 R)
• M2: 330,163 km (0.062 R)
• M3: 705,803 km (0.066 R)
• M4: 978,669 km (0.101 R)
• M5: 1,189,752 km (0.115 R)
• M6: 1,705,117 km (0.093 R)
• M7: 1,941,780 km (0.12 R)
• M8: 2,460,735 km (0.09 R)
• M9: 2,855,075 km (0.09 R)
• M10: 3,853,192 km (0.057 R)
• M11: 4,113,044 km (0.074 R)
• M12: 6,155,653 km (0.102 R)
• M13: 7,220,341 km (0.057 R)
• M14: 8,354,891 km (0.113 R)
• M15: 9,551,226 km (0.119 R)
• M16: 10,800,667 km (0.033 R)
• M17: 12,278,395 km (0.1 R)
• M18: 13,291,920 km (0.092 R)
• M19: 15,412,171 km (0.102 R)
• M20: 18,875,811 km (0.092 R)
• M21: 20,051,051 km (0.111 R)
• M22: 22,269,289 km (0.098 R)
• M23: 24,061,022 km (0.101 R)
• M24: 24,254,901 km (0.073 R)
• M25: 30,800,406 km (0.063 R)
• M26: 33,139,519 km (0.116 R)
• M27: 35,972,753 km (0.085 R)
• M28: 37,123,908 km (0.102 R)
• M29: 41,555,446 km (0.085 R)
• M30: 45,138,166 km (0.072 R)
• M31: 47,536,070 km (0.105 R)
• M32: 48,766,363 km (0.066 R)
• M33: 50,492,273 km (0.08 R)
• M34: 56,596,315 km (0.101 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 446 - 15,011 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit