🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.09

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.62 AU - 0.68 AU

Year: 344 Days

Day: 39.8 Hours

Environment

Temp: -130 °C

Axial Tilt: 37.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 27,877,420 km

• M1: 494,421 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.1

Radius: 12.5

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.6 AU - 0.9 AU

Year: 426 Days

Day: 14.8 Hours

Environment

Temp: -139 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 27,877,420 km

• M1: 155,432 km (0.088 R)
• M2: 629,807 km (0.052 R)
• M3: 1,037,312 km (0.046 R)
• M4: 1,442,722 km (0.061 R)
• M5: 1,833,023 km (0.116 R)
• M6: 2,245,763 km (0.091 R)
• M7: 3,349,646 km (0.099 R)
• M8: 4,048,567 km (0.069 R)
• M9: 4,814,658 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514

Radius: 8

Gravity: 8.03 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.68 AU - 1.1 AU

Year: 551 Days

Day: 7.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 27,877,420 km

• M1: 106,065 km (0.113 R)
• M2: 356,492 km (0.098 R)
• M3: 610,359 km (0.045 R)
• M4: 952,190 km (0.072 R)
• M5: 1,480,570 km (0.064 R)
• M6: 1,835,416 km (0.104 R)
• M7: 2,191,908 km (0.109 R)
• M8: 2,444,878 km (0.088 R)
• M9: 2,738,688 km (0.061 R)
• M10: 3,194,363 km (0.049 R)
• M11: 3,483,835 km (0.098 R)
• M12: 3,951,329 km (0.067 R)
• M13: 4,299,892 km (0.079 R)
• M14: 4,548,673 km (0.112 R)
• M15: 5,572,969 km (0.086 R)
• M16: 5,833,868 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610.5

Radius: 10.3

Gravity: 5.75 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.73 AU - 1.13 AU

Year: 588 Days

Day: 10.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 94.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 27,877,420 km

• M1: 129,552 km (0.086 R)
• M2: 466,745 km (0.088 R)
• M3: 979,118 km (0.119 R)
• M4: 1,513,482 km (0.107 R)
• M5: 2,070,584 km (0.063 R)
• M6: 2,477,490 km (0.114 R)
• M7: 3,904,804 km (0.069 R)
• M8: 4,379,328 km (0.09 R)
• M9: 6,341,155 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 910.6

Radius: 8.6

Gravity: 12.31 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.15 AU - 1.29 AU

Year: 884 Days

Day: 10.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 27,877,420 km

• M1: 112,647 km (0.104 R)
• M2: 439,818 km (0.059 R)
• M3: 749,785 km (0.077 R)
• M4: 1,037,760 km (0.098 R)
• M5: 1,385,426 km (0.075 R)
• M6: 1,876,556 km (0.106 R)
• M7: 2,265,510 km (0.09 R)
• M8: 3,597,081 km (0.118 R)
• M9: 4,491,526 km (0.037 R)
• M10: 4,796,108 km (0.085 R)
• M11: 5,367,422 km (0.103 R)
• M12: 5,962,074 km (0.087 R)
• M13: 6,994,448 km (0.116 R)
• M14: 8,036,996 km (0.06 R)
• M15: 8,433,430 km (0.066 R)
• M16: 8,732,477 km (0.075 R)
• M17: 9,672,101 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 304.6

Radius: 9.7

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.12 AU - 1.48 AU

Year: 972 Days

Day: 8.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 27,877,420 km

• M1: 120,725 km (0.09 R)
• M2: 562,039 km (0.101 R)
• M3: 881,431 km (0.104 R)
• M4: 1,457,981 km (0.116 R)
• M5: 2,380,551 km (0.082 R)
• M6: 3,990,673 km (0.107 R)
• M7: 4,490,928 km (0.045 R)
• M8: 5,653,902 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172

Radius: 9.5

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.41 AU - 1.55 AU

Year: 1181 Days

Day: 9.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 27,877,420 km

• M1: 127,607 km (0.107 R)
• M2: 463,604 km (0.038 R)
• M3: 1,208,601 km (0.115 R)
• M4: 1,775,876 km (0.066 R)
• M5: 2,310,838 km (0.101 R)
• M6: 3,516,747 km (0.082 R)
• M7: 5,269,585 km (0.032 R)
• M8: 5,658,539 km (0.085 R)
• M9: 6,434,504 km (0.094 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 405.1

Radius: 9.4

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 2.52 AU - 2.76 AU

Year: 2814 Days

Day: 11.6 Hours

Environment

Temp: -208 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,877,420 km

• M1: 117,135 km (0.103 R)
• M2: 414,984 km (0.112 R)
• M3: 3,211,866 km (0.092 R)
• M4: 5,417,986 km (0.081 R)
• M5: 6,629,130 km (0.047 R)
• M6: 7,590,446 km (0.095 R)
• M7: 10,035,624 km (0.091 R)
• M8: 11,339,070 km (0.066 R)
• M9: 13,435,684 km (0.035 R)
• M10: 14,415,251 km (0.074 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403.2

Radius: 14.5

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 2.94 AU - 3.72 AU

Year: 3986 Days

Day: 10.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 27,877,420 km

• M1: 184,155 km (0.091 R)
• M2: 1,113,457 km (0.077 R)
• M3: 1,592,619 km (0.103 R)
• M4: 2,226,316 km (0.115 R)
• M5: 2,703,383 km (0.074 R)
• M6: 3,466,033 km (0.116 R)
• M7: 4,031,064 km (0.054 R)
• M8: 4,657,281 km (0.102 R)
• M9: 5,298,158 km (0.037 R)
• M10: 5,916,745 km (0.114 R)
• M11: 7,146,290 km (0.106 R)
• M12: 7,677,213 km (0.115 R)
• M13: 12,385,058 km (0.06 R)
• M14: 13,905,272 km (0.07 R)
• M15: 14,438,588 km (0.102 R)
• M16: 17,592,859 km (0.064 R)
• M17: 18,974,545 km (0.116 R)
• M18: 19,874,077 km (0.052 R)
• M19: 20,676,520 km (0.075 R)

Planet 10 - Gas Giant

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 782.8

Radius: 8.4

Gravity: 11.09 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 3.16 AU - 3.68 AU

Year: 4149 Days

Day: 13.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 27,877,420 km

• M1: 105,317 km (0.088 R)
• M2: 498,011 km (0.116 R)
• M3: 923,916 km (0.076 R)
• M4: 1,205,759 km (0.072 R)
• M5: 1,751,941 km (0.069 R)
• M6: 3,233,857 km (0.092 R)
• M7: 4,146,255 km (0.115 R)
• M8: 4,700,066 km (0.084 R)
• M9: 5,412,002 km (0.119 R)
• M10: 6,691,513 km (0.075 R)
• M11: 7,015,991 km (0.117 R)
• M12: 9,109,613 km (0.095 R)
• M13: 10,427,570 km (0.088 R)
• M14: 11,087,147 km (0.108 R)
• M15: 13,284,141 km (0.03 R)
• M16: 15,083,953 km (0.049 R)
• M17: 16,042,128 km (0.114 R)
• M18: 17,893,102 km (0.058 R)
• M19: 20,418,464 km (0.087 R)
• M20: 21,450,091 km (0.073 R)
• M21: 23,691,366 km (0.075 R)
• M22: 25,062,131 km (0.1 R)
• M23: 25,688,049 km (0.081 R)
• M24: 27,794,237 km (0.061 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 170 - 17,154 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit