🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.64

Radius: 1.47

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.42 AU - 0.66 AU

Year: 256 Days

Day: 13.1 Hours

Environment

Temp: -125 °C

Axial Tilt: 8.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.4

Radius: 14.7

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.68 AU - 0.92 AU

Year: 462 Days

Day: 12.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 17,642,322 km

• M1: 182,809 km (0.068 R)
• M2: 1,090,868 km (0.078 R)
• M3: 1,859,502 km (0.083 R)
• M4: 2,453,255 km (0.116 R)
• M5: 3,394,525 km (0.079 R)
• M6: 4,180,213 km (0.1 R)
• M7: 5,277,364 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 135.3

Radius: 13.1

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.69 AU - 1.07 AU

Year: 533 Days

Day: 9.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 17,642,322 km

• M1: 162,912 km (0.065 R)
• M2: 711,487 km (0.119 R)
• M3: 1,402,779 km (0.115 R)
• M4: 1,879,996 km (0.095 R)
• M5: 3,291,303 km (0.049 R)
• M6: 3,708,830 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.7

Radius: 9.3

Gravity: 7.21 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.93 AU - 1.47 AU

Year: 849 Days

Day: 9.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 17,642,322 km

• M1: 115,789 km (0.114 R)
• M2: 448,644 km (0.119 R)
• M3: 912,098 km (0.119 R)
• M4: 1,332,468 km (0.066 R)
• M5: 2,106,338 km (0.096 R)
• M6: 2,437,398 km (0.115 R)
• M7: 3,206,032 km (0.094 R)
• M8: 3,704,642 km (0.079 R)
• M9: 4,334,897 km (0.111 R)
• M10: 4,735,969 km (0.06 R)
• M11: 7,425,290 km (0.092 R)
• M12: 7,854,187 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409.7

Radius: 8.2

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.52 AU - 1.64 AU

Year: 1282 Days

Day: 6.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 17,642,322 km

• M1: 102,026 km (0.07 R)
• M2: 360,381 km (0.079 R)
• M3: 772,374 km (0.112 R)
• M4: 1,047,185 km (0.062 R)
• M5: 1,766,152 km (0.109 R)
• M6: 2,276,281 km (0.109 R)
• M7: 2,584,303 km (0.113 R)
• M8: 4,477,913 km (0.063 R)
• M9: 4,871,655 km (0.069 R)
• M10: 5,769,840 km (0.097 R)
• M11: 6,913,516 km (0.078 R)
• M12: 7,538,985 km (0.116 R)
• M13: 10,027,695 km (0.059 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.2

Radius: 12.6

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.56 AU - 2.52 AU

Year: 1881 Days

Day: 12 Hours

Environment

Temp: -198 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 17,642,322 km

• M1: 156,779 km (0.089 R)
• M2: 566,826 km (0.118 R)
• M3: 1,461,870 km (0.086 R)
• M4: 2,746,318 km (0.09 R)
• M5: 3,731,420 km (0.098 R)
• M6: 4,918,778 km (0.097 R)
• M7: 5,963,869 km (0.095 R)
• M8: 6,514,688 km (0.1 R)
• M9: 8,084,419 km (0.083 R)
• M10: 8,670,094 km (0.079 R)
• M11: 9,505,299 km (0.059 R)
• M12: 11,193,062 km (0.103 R)
• M13: 12,146,001 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 841.9

Radius: 10.6

Gravity: 7.49 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.79 AU - 2.47 AU

Year: 2007 Days

Day: 9.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 17,642,322 km

• M1: 141,071 km (0.075 R)
• M2: 608,265 km (0.073 R)
• M3: 1,241,513 km (0.104 R)
• M4: 1,713,195 km (0.079 R)
• M5: 2,137,155 km (0.089 R)
• M6: 3,701,500 km (0.066 R)
• M7: 4,195,323 km (0.106 R)
• M8: 4,885,268 km (0.063 R)
• M9: 5,292,473 km (0.072 R)
• M10: 6,227,161 km (0.025 R)
• M11: 7,297,384 km (0.047 R)
• M12: 7,830,850 km (0.12 R)
• M13: 8,390,197 km (0.108 R)
• M14: 9,076,252 km (0.1 R)
• M15: 10,156,798 km (0.097 R)
• M16: 10,634,763 km (0.092 R)
• M17: 11,675,216 km (0.1 R)
• M18: 13,383,325 km (0.115 R)
• M19: 13,958,080 km (0.073 R)
• M20: 14,595,516 km (0.109 R)
• M21: 15,299,823 km (0.091 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97.5

Radius: 12.1

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 3.67 AU - 5.09 AU

Year: 5919 Days

Day: 11.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 17,642,322 km

• M1: 150,645 km (0.117 R)
• M2: 538,552 km (0.082 R)
• M3: 939,624 km (0.091 R)
• M4: 1,809,087 km (0.096 R)
• M5: 2,376,512 km (0.071 R)
• M6: 3,563,421 km (0.115 R)
• M7: 5,553,971 km (0.091 R)
• M8: 6,098,956 km (0.11 R)
• M9: 6,983,079 km (0.086 R)
• M10: 7,412,425 km (0.117 R)
• M11: 10,741,726 km (0.071 R)
• M12: 13,949,553 km (0.102 R)
• M13: 15,385,543 km (0.12 R)
• M14: 16,263,383 km (0.077 R)
• M15: 16,714,720 km (0.099 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 198 - 12,694 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit