🌌 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: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.04

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.54 AU - 0.64 AU

Year: 297 Days

Day: 12.5 Hours

Environment

Temp: -125 °C

Axial Tilt: 11.5 °

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: 260.5

Radius: 14.6

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.74 AU - 0.86 AU

Year: 469 Days

Day: 14.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 30,751,529 km

• M1: 181,612 km (0.084 R)
• M2: 895,343 km (0.111 R)
• M3: 1,793,678 km (0.091 R)
• M4: 2,752,302 km (0.061 R)
• M5: 4,201,755 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 916.3

Radius: 9.1

Gravity: 11.07 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.71 AU - 1.11 AU

Year: 569 Days

Day: 6.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 30,751,529 km

• M1: 113,246 km (0.097 R)
• M2: 402,867 km (0.074 R)
• M3: 730,038 km (0.115 R)
• M4: 1,041,949 km (0.073 R)
• M5: 1,339,799 km (0.09 R)
• M6: 1,655,600 km (0.092 R)
• M7: 1,967,062 km (0.098 R)
• M8: 2,318,019 km (0.109 R)
• M9: 2,767,112 km (0.079 R)
• M10: 3,521,983 km (0.053 R)
• M11: 3,868,601 km (0.099 R)
• M12: 4,439,167 km (0.078 R)
• M13: 4,911,597 km (0.104 R)
• M14: 5,381,335 km (0.098 R)
• M15: 6,230,452 km (0.048 R)
• M16: 7,232,010 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.6

Radius: 13

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.43 AU - 2.21 AU

Year: 1611 Days

Day: 7.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 30,751,529 km

• M1: 161,715 km (0.103 R)
• M2: 680,371 km (0.07 R)
• M3: 1,218,325 km (0.089 R)
• M4: 1,717,982 km (0.089 R)
• M5: 2,241,874 km (0.032 R)
• M6: 3,060,922 km (0.097 R)
• M7: 3,888,497 km (0.081 R)
• M8: 4,294,207 km (0.12 R)
• M9: 4,765,739 km (0.065 R)
• M10: 5,727,803 km (0.105 R)
• M11: 6,461,730 km (0.117 R)
• M12: 7,034,092 km (0.055 R)
• M13: 8,502,245 km (0.086 R)
• M14: 9,639,488 km (0.106 R)
• M15: 10,071,677 km (0.045 R)
• M16: 10,646,282 km (0.092 R)
• M17: 11,175,410 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.3

Radius: 10.8

Gravity: 6.36 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 2.14 AU - 2.82 AU

Year: 2562 Days

Day: 7 Hours

Environment

Temp: -197 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 30,751,529 km

• M1: 137,780 km (0.098 R)
• M2: 666,907 km (0.095 R)
• M3: 1,062,294 km (0.106 R)
• M4: 1,406,220 km (0.115 R)
• M5: 1,943,875 km (0.114 R)
• M6: 2,426,777 km (0.12 R)
• M7: 3,188,978 km (0.103 R)
• M8: 3,580,027 km (0.113 R)
• M9: 5,281,254 km (0.057 R)
• M10: 6,364,193 km (0.084 R)
• M11: 7,966,835 km (0.068 R)
• M12: 8,323,775 km (0.067 R)
• M13: 9,245,597 km (0.092 R)
• M14: 9,676,589 km (0.052 R)
• M15: 10,852,278 km (0.098 R)
• M16: 11,291,498 km (0.038 R)
• M17: 13,213,830 km (0.117 R)
• M18: 15,295,335 km (0.098 R)
• M19: 15,898,963 km (0.119 R)
• M20: 17,261,500 km (0.082 R)
• M21: 19,100,955 km (0.062 R)
• M22: 19,801,223 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 512.2

Radius: 9.8

Gravity: 5.33 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 2.76 AU - 4.3 AU

Year: 4351 Days

Day: 7.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 30,751,529 km

• M1: 121,922 km (0.108 R)
• M2: 444,455 km (0.118 R)
• M3: 834,158 km (0.08 R)
• M4: 1,496,727 km (0.119 R)
• M5: 2,541,518 km (0.106 R)
• M6: 3,010,807 km (0.113 R)
• M7: 3,739,498 km (0.088 R)
• M8: 4,847,719 km (0.091 R)
• M9: 6,219,980 km (0.082 R)
• M10: 6,948,671 km (0.032 R)
• M11: 8,502,993 km (0.065 R)
• M12: 9,634,103 km (0.117 R)
• M13: 9,992,240 km (0.077 R)
• M14: 10,525,407 km (0.046 R)
• M15: 11,426,435 km (0.117 R)
• M16: 12,238,901 km (0.111 R)
• M17: 13,628,366 km (0.088 R)
• M18: 14,029,588 km (0.095 R)
• M19: 16,604,316 km (0.084 R)
• M20: 17,294,262 km (0.079 R)
• M21: 19,040,368 km (0.106 R)
• M22: 19,605,399 km (0.096 R)
• M23: 22,183,868 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.5

Radius: 14.1

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 3.08 AU - 4.2 AU

Year: 4556 Days

Day: 7 Hours

Environment

Temp: -203 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 30,751,529 km

• M1: 180,116 km (0.1 R)
• M2: 664,663 km (0.072 R)
• M3: 1,366,577 km (0.077 R)
• M4: 1,879,697 km (0.094 R)
• M5: 3,151,578 km (0.091 R)
• M6: 3,906,449 km (0.11 R)
• M7: 5,016,765 km (0.11 R)
• M8: 5,487,699 km (0.11 R)
• M9: 6,979,937 km (0.115 R)
• M10: 8,689,093 km (0.108 R)
• M11: 10,003,161 km (0.063 R)
• M12: 11,827,208 km (0.042 R)
• M13: 12,666,302 km (0.119 R)
• M14: 13,491,933 km (0.059 R)
• M15: 14,298,116 km (0.039 R)
• M16: 16,007,122 km (0.078 R)
• M17: 17,034,111 km (0.107 R)
• M18: 19,488,115 km (0.04 R)
• M19: 21,083,277 km (0.051 R)
• M20: 21,585,626 km (0.08 R)
• M21: 28,689,880 km (0.055 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 172 - 16,037 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit