🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.81

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.51 AU - 0.61 AU

Year: 271 Days

Day: 33.9 Hours

Environment

Temp: -114 °C

Axial Tilt: 90.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 555.6

Radius: 14.4

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.81 AU - 0.99 AU

Year: 551 Days

Day: 11.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,893,724 km

• M1: 179,069 km (0.095 R)
• M2: 652,247 km (0.063 R)
• M3: 1,105,827 km (0.114 R)
• M4: 1,806,394 km (0.078 R)
• M5: 2,578,319 km (0.118 R)
• M6: 3,042,222 km (0.108 R)
• M7: 3,740,096 km (0.112 R)
• M8: 4,425,853 km (0.068 R)
• M9: 5,492,336 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.3

Radius: 12.8

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 2.23 AU - 2.45 AU

Year: 2311 Days

Day: 14.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,893,724 km

• M1: 159,322 km (0.093 R)
• M2: 570,417 km (0.092 R)
• M3: 985,700 km (0.11 R)
• M4: 1,908,869 km (0.1 R)
• M5: 2,340,159 km (0.074 R)
• M6: 3,009,012 km (0.085 R)
• M7: 3,463,490 km (0.087 R)
• M8: 4,823,933 km (0.054 R)
• M9: 5,677,987 km (0.1 R)
• M10: 6,653,814 km (0.111 R)
• M11: 8,570,612 km (0.059 R)
• M12: 9,432,295 km (0.107 R)
• M13: 10,573,428 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 122.1

Radius: 10.2

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 2.77 AU - 3.03 AU

Year: 3189 Days

Day: 6.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 66,893,724 km

• M1: 130,150 km (0.116 R)
• M2: 539,151 km (0.057 R)
• M3: 1,063,491 km (0.029 R)
• M4: 1,879,398 km (0.113 R)
• M5: 2,422,887 km (0.064 R)
• M6: 2,941,992 km (0.108 R)
• M7: 4,011,467 km (0.051 R)
• M8: 6,365,838 km (0.115 R)
• M9: 6,775,288 km (0.107 R)
• M10: 7,176,509 km (0.1 R)
• M11: 8,620,577 km (0.087 R)
• M12: 9,959,478 km (0.089 R)
• M13: 10,578,514 km (0.056 R)
• M14: 11,679,106 km (0.067 R)
• M15: 12,257,152 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458.3

Radius: 8.4

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 2.93 AU - 2.95 AU

Year: 3255 Days

Day: 10 Hours

Environment

Temp: -197 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,893,724 km

• M1: 108,309 km (0.113 R)
• M2: 401,820 km (0.114 R)
• M3: 733,030 km (0.12 R)
• M4: 994,826 km (0.092 R)
• M5: 1,376,899 km (0.046 R)
• M6: 2,383,543 km (0.101 R)
• M7: 3,211,567 km (0.077 R)
• M8: 4,303,033 km (0.095 R)
• M9: 4,875,843 km (0.034 R)
• M10: 5,252,980 km (0.103 R)
• M11: 6,254,388 km (0.062 R)
• M12: 6,615,068 km (0.087 R)
• M13: 7,655,222 km (0.068 R)
• M14: 9,043,042 km (0.114 R)
• M15: 10,169,663 km (0.062 R)
• M16: 11,265,468 km (0.119 R)
• M17: 12,179,959 km (0.107 R)
• M18: 14,298,564 km (0.083 R)
• M19: 14,730,603 km (0.1 R)
• M20: 15,121,951 km (0.092 R)
• M21: 16,598,931 km (0.099 R)
• M22: 17,562,640 km (0.086 R)
• M23: 18,169,559 km (0.103 R)
• M24: 18,450,205 km (0.084 R)

Asteroid Belt

Center: 3.81 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.9

Radius: 13.3

Gravity: 4.93 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 4.29 AU - 5.07 AU

Year: 6537 Days

Day: 12.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 66,893,724 km

• M1: 167,101 km (0.082 R)
• M2: 671,246 km (0.08 R)
• M3: 1,315,414 km (0.056 R)
• M4: 1,779,915 km (0.091 R)
• M5: 2,622,750 km (0.08 R)
• M6: 4,008,924 km (0.116 R)
• M7: 4,667,304 km (0.091 R)
• M8: 5,677,538 km (0.083 R)
• M9: 6,474,895 km (0.116 R)
• M10: 6,937,302 km (0.036 R)
• M11: 7,421,700 km (0.087 R)
• M12: 8,458,712 km (0.112 R)
• M13: 9,320,546 km (0.086 R)
• M14: 11,679,555 km (0.105 R)
• M15: 13,306,581 km (0.037 R)
• M16: 14,174,697 km (0.11 R)
• M17: 14,957,244 km (0.03 R)
• M18: 16,608,804 km (0.048 R)
• M19: 17,207,944 km (0.085 R)
• M20: 18,029,087 km (0.106 R)
• M21: 19,164,534 km (0.09 R)
• M22: 20,271,708 km (0.074 R)
• M23: 21,421,069 km (0.109 R)
• M24: 23,349,834 km (0.057 R)
• M25: 24,956,964 km (0.109 R)
• M26: 25,655,287 km (0.103 R)
• M27: 26,366,625 km (0.116 R)
• M28: 27,828,645 km (0.076 R)
• M29: 28,579,626 km (0.114 R)
• M30: 29,537,352 km (0.054 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 356.5

Radius: 4.5

Gravity: 17.6 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 8.87 AU - 12.69 AU

Year: 22853 Days

Day: 24.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 66,893,724 km

• M1: 55,950 km (0.079 R)
• M2: 479,162 km (0.057 R)
• M3: 683,812 km (0.11 R)
• M4: 979,866 km (0.086 R)
• M5: 1,538,913 km (0.12 R)
• M6: 3,174,317 km (0.119 R)
• M7: 3,524,526 km (0.102 R)
• M8: 3,723,491 km (0.091 R)
• M9: 4,628,857 km (0.107 R)
• M10: 5,595,559 km (0.101 R)
• M11: 5,749,495 km (0.093 R)
• M12: 10,063,000 km (0.075 R)
• M13: 10,756,835 km (0.081 R)
• M14: 11,236,894 km (0.076 R)
• M15: 11,544,019 km (0.082 R)
• M16: 16,062,473 km (0.077 R)
• M17: 28,253,203 km (0.088 R)
• M18: 32,759,989 km (0.111 R)
• M19: 38,549,875 km (0.085 R)
• M20: 39,670,962 km (0.088 R)
• M21: 39,812,631 km (0.103 R)
• M22: 43,314,268 km (0.086 R)
• M23: 46,071,507 km (0.093 R)
• M24: 52,441,833 km (0.067 R)
• M25: 61,435,058 km (0.116 R)
• M26: 61,624,748 km (0.117 R)
• M27: 64,125,726 km (0.103 R)
• M28: 64,712,299 km (0.115 R)
• M29: 65,499,932 km (0.069 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 158 - 15,885 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit