🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.71

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.48 AU - 0.58 AU

Year: 253 Days

Day: 34 Hours

Environment

Temp: -110 °C

Axial Tilt: 38.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.31

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.59 AU - 0.63 AU

Year: 313 Days

Day: 35.8 Hours

Environment

Temp: -135 °C

Axial Tilt: 35.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 425.1

Radius: 14

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.24 AU - 1.34 AU

Year: 961 Days

Day: 8.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 18,124,985 km

• M1: 174,132 km (0.115 R)
• M2: 787,932 km (0.098 R)
• M3: 1,512,285 km (0.117 R)
• M4: 2,035,279 km (0.114 R)
• M5: 2,492,899 km (0.05 R)
• M6: 2,959,195 km (0.044 R)
• M7: 3,457,207 km (0.102 R)
• M8: 4,177,969 km (0.117 R)
• M9: 4,808,225 km (0.102 R)
• M10: 5,245,051 km (0.075 R)
• M11: 6,059,312 km (0.061 R)
• M12: 6,570,488 km (0.055 R)
• M13: 7,680,055 km (0.047 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 419.6

Radius: 13.8

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.36 AU - 1.78 AU

Year: 1291 Days

Day: 9.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 18,124,985 km

• M1: 171,589 km (0.093 R)
• M2: 681,119 km (0.055 R)
• M3: 1,253,630 km (0.081 R)
• M4: 1,826,740 km (0.12 R)
• M5: 3,358,173 km (0.082 R)
• M6: 4,677,477 km (0.088 R)
• M7: 5,426,064 km (0.119 R)
• M8: 6,060,060 km (0.085 R)
• M9: 7,068,051 km (0.057 R)
• M10: 7,600,170 km (0.089 R)
• M11: 8,937,575 km (0.057 R)
• M12: 10,243,116 km (0.048 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543.2

Radius: 8.2

Gravity: 8.08 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.4 AU - 2.1 AU

Year: 1519 Days

Day: 13 Hours

Environment

Temp: -186 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 18,124,985 km

• M1: 102,026 km (0.04 R)
• M2: 816,804 km (0.069 R)
• M3: 1,091,017 km (0.045 R)
• M4: 1,410,858 km (0.093 R)
• M5: 2,009,548 km (0.044 R)
• M6: 2,266,707 km (0.085 R)
• M7: 2,687,825 km (0.116 R)
• M8: 2,987,469 km (0.103 R)
• M9: 3,355,181 km (0.087 R)
• M10: 3,785,873 km (0.113 R)
• M11: 4,181,560 km (0.11 R)
• M12: 4,566,625 km (0.118 R)
• M13: 5,666,468 km (0.047 R)
• M14: 7,421,251 km (0.116 R)
• M15: 8,551,762 km (0.055 R)
• M16: 8,873,697 km (0.092 R)
• M17: 10,606,639 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.1

Radius: 8.5

Gravity: 10.16 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.46 AU - 2.1 AU

Year: 1558 Days

Day: 5.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 18,124,985 km

• M1: 105,766 km (0.109 R)
• M2: 631,004 km (0.079 R)
• M3: 1,028,336 km (0.07 R)
• M4: 1,381,686 km (0.098 R)
• M5: 1,825,842 km (0.054 R)
• M6: 2,157,201 km (0.093 R)
• M7: 2,661,645 km (0.095 R)
• M8: 4,066,968 km (0.111 R)
• M9: 4,440,962 km (0.117 R)
• M10: 5,108,318 km (0.091 R)
• M11: 5,817,861 km (0.12 R)
• M12: 6,100,302 km (0.074 R)
• M13: 7,215,255 km (0.1 R)
• M14: 7,541,677 km (0.063 R)
• M15: 8,107,606 km (0.119 R)
• M16: 8,732,028 km (0.097 R)
• M17: 9,134,446 km (0.058 R)
• M18: 9,843,540 km (0.082 R)
• M19: 10,110,273 km (0.118 R)
• M20: 11,851,293 km (0.035 R)
• M21: 12,153,331 km (0.103 R)
• M22: 12,655,232 km (0.046 R)
• M23: 13,495,224 km (0.051 R)
• M24: 13,824,788 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322.5

Radius: 9.5

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.75 AU - 1.85 AU

Year: 1584 Days

Day: 10.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 18,124,985 km

• M1: 118,332 km (0.082 R)
• M2: 455,675 km (0.094 R)
• M3: 768,634 km (0.109 R)
• M4: 1,115,402 km (0.109 R)
• M5: 2,171,263 km (0.06 R)
• M6: 2,497,836 km (0.092 R)
• M7: 3,498,795 km (0.103 R)
• M8: 3,886,253 km (0.09 R)
• M9: 4,336,543 km (0.097 R)
• M10: 4,710,687 km (0.109 R)
• M11: 5,564,891 km (0.11 R)
• M12: 7,156,313 km (0.117 R)
• M13: 8,017,249 km (0.115 R)
• M14: 8,337,089 km (0.071 R)
• M15: 8,945,653 km (0.068 R)
• M16: 9,613,159 km (0.052 R)
• M17: 10,189,410 km (0.098 R)
• M18: 10,724,372 km (0.073 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 248.4

Radius: 14.3

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 3.12 AU - 3.4 AU

Year: 3861 Days

Day: 8.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 18,124,985 km

• M1: 178,321 km (0.097 R)
• M2: 914,791 km (0.119 R)
• M3: 1,387,819 km (0.072 R)
• M4: 1,924,726 km (0.074 R)
• M5: 2,880,058 km (0.089 R)
• M6: 3,397,667 km (0.111 R)
• M7: 4,538,500 km (0.114 R)
• M8: 5,152,151 km (0.025 R)
• M9: 5,845,986 km (0.064 R)
• M10: 7,274,944 km (0.116 R)
• M11: 7,901,760 km (0.072 R)
• M12: 11,083,407 km (0.058 R)
• M13: 11,955,413 km (0.097 R)
• M14: 12,958,467 km (0.104 R)
• M15: 14,382,190 km (0.118 R)
• M16: 15,957,306 km (0.116 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: 434 - 13,841 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit