🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.51

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.58 AU - 0.64 AU

Year: 308 Days

Day: 36.4 Hours

Environment

Temp: -134 °C

Axial Tilt: 25.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 73,278,014 km

• M1: 45,478 km (0.062 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 275.2

Radius: 15

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.57 AU - 0.81 AU

Year: 370 Days

Day: 8.4 Hours

Environment

Temp: -132 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 73,278,014 km

• M1: 186,549 km (0.115 R)
• M2: 659,876 km (0.075 R)
• M3: 1,171,950 km (0.103 R)
• M4: 1,659,938 km (0.094 R)
• M5: 2,484,073 km (0.111 R)
• M6: 3,303,869 km (0.112 R)
• M7: 3,772,858 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557.7

Radius: 12.5

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.56 AU - 0.86 AU

Year: 386 Days

Day: 14 Hours

Environment

Temp: -132 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 73,278,014 km

• M1: 155,432 km (0.067 R)
• M2: 625,618 km (0.11 R)
• M3: 1,118,094 km (0.088 R)
• M4: 2,723,130 km (0.117 R)
• M5: 3,200,946 km (0.084 R)
• M6: 3,686,989 km (0.091 R)
• M7: 4,208,936 km (0.073 R)
• M8: 4,851,459 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.1

Radius: 11

Gravity: 7.74 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.17 AU - 1.65 AU

Year: 1081 Days

Day: 12.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,278,014 km

• M1: 136,882 km (0.059 R)
• M2: 635,641 km (0.096 R)
• M3: 1,015,022 km (0.102 R)
• M4: 1,408,165 km (0.095 R)
• M5: 1,844,691 km (0.103 R)
• M6: 2,278,675 km (0.054 R)
• M7: 2,860,012 km (0.072 R)
• M8: 3,537,990 km (0.089 R)
• M9: 4,445,899 km (0.047 R)
• M10: 6,504,815 km (0.099 R)
• M11: 6,963,033 km (0.104 R)
• M12: 7,442,644 km (0.099 R)
• M13: 7,810,056 km (0.116 R)
• M14: 8,695,675 km (0.077 R)
• M15: 9,044,538 km (0.103 R)
• M16: 9,708,603 km (0.086 R)
• M17: 10,965,374 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.5

Radius: 13.5

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.67 AU - 1.67 AU

Year: 1393 Days

Day: 12.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,278,014 km

• M1: 167,849 km (0.104 R)
• M2: 628,161 km (0.079 R)
• M3: 1,154,148 km (0.111 R)
• M4: 1,647,821 km (0.088 R)
• M5: 2,115,763 km (0.089 R)
• M6: 2,635,017 km (0.066 R)
• M7: 3,719,003 km (0.087 R)
• M8: 4,785,187 km (0.077 R)
• M9: 5,603,188 km (0.095 R)
• M10: 6,183,329 km (0.11 R)
• M11: 6,632,571 km (0.066 R)
• M12: 7,282,724 km (0.094 R)
• M13: 8,057,790 km (0.09 R)
• M14: 8,711,084 km (0.117 R)
• M15: 9,616,002 km (0.113 R)
• M16: 11,507,068 km (0.118 R)
• M17: 12,596,739 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 655.5

Radius: 14.4

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.7 AU - 1.78 AU

Year: 1482 Days

Day: 14 Hours

Environment

Temp: -194 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 73,278,014 km

• M1: 179,218 km (0.09 R)
• M2: 643,720 km (0.056 R)
• M3: 1,180,776 km (0.051 R)
• M4: 1,790,687 km (0.084 R)
• M5: 2,409,872 km (0.084 R)
• M6: 3,140,957 km (0.045 R)
• M7: 4,138,924 km (0.063 R)
• M8: 5,234,429 km (0.083 R)
• M9: 6,371,373 km (0.117 R)
• M10: 7,506,073 km (0.102 R)
• M11: 8,108,055 km (0.105 R)
• M12: 9,285,241 km (0.089 R)
• M13: 11,402,051 km (0.117 R)
• M14: 12,498,005 km (0.034 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 23.6

Radius: 13.2

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 2.43 AU - 2.67 AU

Year: 2629 Days

Day: 8.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 73,278,014 km

• M1: 247,136 km (0.11 R)
• M2: 791,223 km (0.068 R)
• M3: 1,289,085 km (0.111 R)
• M4: 1,731,147 km (0.052 R)
• M5: 2,294,233 km (0.105 R)
• M6: 2,816,479 km (0.117 R)
• M7: 3,615,631 km (0.042 R)
• M8: 4,399,973 km (0.07 R)
• M9: 5,909,415 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 410.6

Radius: 6.2

Gravity: 10.68 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 4.98 AU - 7.28 AU

Year: 9800 Days

Day: 15.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 62 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 73,278,014 km

• M1: 77,043 km (0.116 R)
• M2: 363,224 km (0.115 R)
• M3: 587,022 km (0.085 R)
• M4: 1,008,140 km (0.107 R)
• M5: 1,393,355 km (0.1 R)
• M6: 1,711,250 km (0.081 R)
• M7: 1,918,443 km (0.099 R)
• M8: 2,209,411 km (0.083 R)
• M9: 2,760,081 km (0.115 R)
• M10: 5,481,266 km (0.049 R)
• M11: 5,934,996 km (0.118 R)
• M12: 6,807,152 km (0.114 R)
• M13: 8,044,326 km (0.075 R)
• M14: 8,417,723 km (0.118 R)
• M15: 8,716,021 km (0.116 R)
• M16: 9,379,188 km (0.114 R)
• M17: 9,653,700 km (0.062 R)
• M18: 10,558,319 km (0.106 R)
• M19: 10,855,420 km (0.077 R)
• M20: 15,179,846 km (0.079 R)
• M21: 16,203,394 km (0.111 R)
• M22: 17,136,137 km (0.116 R)
• M23: 17,477,669 km (0.083 R)
• M24: 20,759,846 km (0.111 R)
• M25: 21,779,356 km (0.064 R)
• M26: 22,586,137 km (0.078 R)
• M27: 24,603,165 km (0.097 R)
• M28: 31,166,921 km (0.096 R)
• M29: 32,606,352 km (0.026 R)
• M30: 38,808,231 km (0.088 R)
• M31: 39,161,132 km (0.107 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 585.3

Radius: 4.1

Gravity: 34.82 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 9.21 AU - 10.81 AU

Year: 20449 Days

Day: 18.2 Hours

Environment

Temp: -230 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 73,278,014 km

• M1: 52,958 km (0.107 R)
• M2: 180,714 km (0.062 R)
• M3: 577,448 km (0.052 R)
• M4: 799,301 km (0.111 R)
• M5: 1,383,032 km (0.067 R)
• M6: 2,428,123 km (0.104 R)
• M7: 2,682,589 km (0.096 R)
• M8: 3,582,570 km (0.057 R)
• M9: 4,667,603 km (0.118 R)
• M10: 4,879,583 km (0.12 R)
• M11: 5,954,594 km (0.04 R)
• M12: 7,413,622 km (0.104 R)
• M13: 8,250,921 km (0.092 R)
• M14: 12,035,897 km (0.092 R)
• M15: 14,117,850 km (0.066 R)
• M16: 17,418,727 km (0.077 R)
• M17: 20,440,754 km (0.096 R)
• M18: 22,672,006 km (0.04 R)
• M19: 23,794,289 km (0.118 R)
• M20: 26,038,856 km (0.093 R)
• M21: 28,654,724 km (0.077 R)
• M22: 30,208,148 km (0.117 R)
• M23: 35,338,308 km (0.083 R)
• M24: 35,609,080 km (0.1 R)
• M25: 41,468,829 km (0.109 R)
• M26: 42,682,516 km (0.098 R)
• M27: 46,141,818 km (0.077 R)
• M28: 46,465,248 km (0.108 R)
• M29: 50,808,673 km (0.076 R)
• M30: 55,963,666 km (0.091 R)
• M31: 56,515,981 km (0.093 R)
• M32: 62,044,221 km (0.091 R)
• M33: 66,059,877 km (0.093 R)
• M34: 66,265,125 km (0.094 R)
• M35: 70,459,101 km (0.109 R)
• M36: 71,751,028 km (0.081 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: 472 - 16,065 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit