🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.95

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.64 AU - 0.64 AU

Year: 331 Days

Day: 29.7 Hours

Environment

Temp: -129 °C

Axial Tilt: 31.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 39,521,564 km

• M1: 60,587 km (0.107 R)
• M2: 321,635 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.5

Radius: 12.4

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.78 AU - 1.26 AU

Year: 665 Days

Day: 10.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 39,521,564 km

• M1: 172,786 km (0.07 R)
• M2: 566,527 km (0.086 R)
• M3: 1,025,194 km (0.114 R)
• M4: 1,745,209 km (0.087 R)
• M5: 2,500,379 km (0.118 R)
• M6: 4,141,019 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 665.9

Radius: 12.5

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.12 AU - 1.48 AU

Year: 957 Days

Day: 5.6 Hours

Environment

Temp: -174 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,521,564 km

• M1: 155,582 km (0.034 R)
• M2: 596,746 km (0.108 R)
• M3: 1,190,350 km (0.064 R)
• M4: 1,619,696 km (0.111 R)
• M5: 3,057,332 km (0.048 R)
• M6: 4,760,653 km (0.066 R)
• M7: 5,181,322 km (0.106 R)
• M8: 6,751,950 km (0.044 R)
• M9: 7,260,882 km (0.064 R)
• M10: 7,920,459 km (0.071 R)
• M11: 8,382,118 km (0.115 R)
• M12: 9,847,130 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 835.2

Radius: 10

Gravity: 8.35 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.54 AU - 1.82 AU

Year: 1406 Days

Day: 7.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 39,521,564 km

• M1: 124,316 km (0.086 R)
• M2: 506,090 km (0.106 R)
• M3: 957,277 km (0.056 R)
• M4: 1,358,199 km (0.081 R)
• M5: 1,689,708 km (0.097 R)
• M6: 2,178,743 km (0.106 R)
• M7: 2,665,535 km (0.088 R)
• M8: 3,088,149 km (0.107 R)
• M9: 3,721,397 km (0.027 R)
• M10: 4,087,163 km (0.077 R)
• M11: 5,118,940 km (0.044 R)
• M12: 5,572,670 km (0.116 R)
• M13: 6,053,179 km (0.084 R)
• M14: 6,413,111 km (0.106 R)
• M15: 6,736,542 km (0.084 R)
• M16: 7,362,609 km (0.109 R)
• M17: 8,055,546 km (0.11 R)
• M18: 8,521,394 km (0.049 R)
• M19: 8,974,376 km (0.045 R)
• M20: 9,765,001 km (0.097 R)
• M21: 10,194,197 km (0.119 R)
• M22: 12,842,229 km (0.115 R)
• M23: 13,397,985 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.9

Radius: 14.4

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1.66 AU - 2.54 AU

Year: 1965 Days

Day: 7.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 39,521,564 km

• M1: 179,218 km (0.099 R)
• M2: 654,042 km (0.03 R)
• M3: 1,225,955 km (0.068 R)
• M4: 1,760,917 km (0.095 R)
• M5: 2,961,589 km (0.092 R)
• M6: 3,697,611 km (0.116 R)
• M7: 5,710,749 km (0.083 R)
• M8: 6,833,481 km (0.056 R)
• M9: 7,447,730 km (0.085 R)
• M10: 8,630,900 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.8

Radius: 10.4

Gravity: 7.77 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.97 AU - 2.83 AU

Year: 2401 Days

Day: 7.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 39,521,564 km

• M1: 129,552 km (0.044 R)
• M2: 590,014 km (0.1 R)
• M3: 917,185 km (0.082 R)
• M4: 1,609,374 km (0.08 R)
• M5: 1,972,298 km (0.117 R)
• M6: 2,432,162 km (0.055 R)
• M7: 2,946,779 km (0.084 R)
• M8: 3,514,503 km (0.108 R)
• M9: 4,319,938 km (0.091 R)
• M10: 5,124,625 km (0.102 R)
• M11: 6,213,248 km (0.086 R)
• M12: 7,089,293 km (0.105 R)
• M13: 7,885,753 km (0.101 R)
• M14: 8,571,659 km (0.087 R)
• M15: 9,547,486 km (0.085 R)
• M16: 9,950,502 km (0.095 R)
• M17: 10,326,741 km (0.086 R)
• M18: 11,188,126 km (0.11 R)
• M19: 11,719,198 km (0.066 R)
• M20: 12,181,605 km (0.1 R)
• M21: 12,568,914 km (0.075 R)
• M22: 13,596,502 km (0.081 R)
• M23: 15,465,278 km (0.086 R)
• M24: 16,279,390 km (0.045 R)
• M25: 17,772,526 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719.4

Radius: 14.5

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 3.99 AU - 6.09 AU

Year: 7306 Days

Day: 13.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 164.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 39,521,564 km

• M1: 180,415 km (0.066 R)
• M2: 1,231,938 km (0.096 R)
• M3: 1,781,860 km (0.047 R)
• M4: 2,373,370 km (0.086 R)
• M5: 3,508,818 km (0.051 R)
• M6: 4,531,170 km (0.096 R)
• M7: 6,137,402 km (0.065 R)
• M8: 6,905,887 km (0.084 R)
• M9: 7,427,833 km (0.11 R)
• M10: 8,260,196 km (0.104 R)
• M11: 10,688,020 km (0.082 R)
• M12: 11,388,288 km (0.104 R)
• M13: 12,495,910 km (0.076 R)
• M14: 15,048,648 km (0.12 R)
• M15: 16,977,414 km (0.081 R)
• M16: 18,778,123 km (0.09 R)
• M17: 21,320,988 km (0.111 R)
• M18: 25,642,571 km (0.069 R)
• M19: 27,265,409 km (0.099 R)
• M20: 28,574,240 km (0.057 R)
• M21: 31,926,878 km (0.077 R)
• M22: 34,124,022 km (0.084 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 243 - 11,530 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit