🌌 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: 2.46

Radius: 1.43

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.46 AU - 0.66 AU

Year: 275 Days

Day: 20.3 Hours

Environment

Temp: -128 °C

Axial Tilt: 49.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 86,234,631 km

• M1: 35,455 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.6

Radius: 12.8

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.56 AU - 0.9 AU

Year: 409 Days

Day: 10.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 86,234,631 km

• M1: 159,172 km (0.039 R)
• M2: 594,502 km (0.103 R)
• M3: 1,310,777 km (0.104 R)
• M4: 1,738,926 km (0.049 R)
• M5: 2,288,399 km (0.089 R)
• M6: 3,148,886 km (0.087 R)
• M7: 3,556,540 km (0.101 R)
• M8: 4,012,963 km (0.098 R)
• M9: 4,508,431 km (0.097 R)
• M10: 5,296,513 km (0.104 R)
• M11: 5,877,252 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 540.2

Radius: 12.2

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.84 AU - 1.38 AU

Year: 767 Days

Day: 13.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 86,234,631 km

• M1: 157,826 km (0.106 R)
• M2: 620,532 km (0.101 R)
• M3: 1,008,439 km (0.083 R)
• M4: 1,478,177 km (0.08 R)
• M5: 2,256,534 km (0.112 R)
• M6: 3,178,057 km (0.044 R)
• M7: 3,989,775 km (0.082 R)
• M8: 4,508,281 km (0.098 R)
• M9: 4,985,798 km (0.096 R)
• M10: 5,700,128 km (0.063 R)
• M11: 6,121,246 km (0.043 R)
• M12: 6,645,885 km (0.072 R)
• M13: 7,200,445 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 560.2

Radius: 9.7

Gravity: 5.95 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 3.39 AU - 4.95 AU

Year: 5586 Days

Day: 8.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 86,234,631 km

• M1: 120,725 km (0.045 R)
• M2: 470,186 km (0.094 R)
• M3: 1,430,156 km (0.062 R)
• M4: 1,743,264 km (0.06 R)
• M5: 2,348,238 km (0.091 R)
• M6: 2,789,252 km (0.078 R)
• M7: 3,325,261 km (0.069 R)
• M8: 3,793,652 km (0.038 R)
• M9: 4,603,575 km (0.119 R)
• M10: 11,613,133 km (0.105 R)
• M11: 14,162,430 km (0.096 R)
• M12: 17,311,166 km (0.054 R)
• M13: 19,315,179 km (0.101 R)
• M14: 23,471,756 km (0.115 R)
• M15: 24,010,608 km (0.05 R)
• M16: 25,434,181 km (0.068 R)
• M17: 27,673,811 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 606.7

Radius: 10.9

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 3.92 AU - 4.78 AU

Year: 5952 Days

Day: 11.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 86,234,631 km

• M1: 135,536 km (0.082 R)
• M2: 618,438 km (0.034 R)
• M3: 959,820 km (0.109 R)
• M4: 1,887,327 km (0.11 R)
• M5: 2,354,670 km (0.114 R)
• M6: 2,787,008 km (0.089 R)
• M7: 3,251,659 km (0.109 R)
• M8: 4,362,573 km (0.064 R)
• M9: 5,158,284 km (0.117 R)
• M10: 6,237,633 km (0.119 R)
• M11: 6,729,511 km (0.114 R)
• M12: 8,519,150 km (0.111 R)
• M13: 12,444,748 km (0.11 R)
• M14: 13,439,424 km (0.084 R)
• M15: 14,486,459 km (0.084 R)
• M16: 16,249,022 km (0.062 R)
• M17: 18,150,261 km (0.076 R)
• M18: 18,681,333 km (0.105 R)
• M19: 20,195,563 km (0.109 R)
• M20: 20,765,980 km (0.094 R)
• M21: 22,541,856 km (0.117 R)
• M22: 24,739,000 km (0.116 R)
• M23: 25,145,906 km (0.072 R)
• M24: 27,247,756 km (0.111 R)
• M25: 27,594,674 km (0.095 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 152.4

Radius: 3.2

Gravity: 14.88 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 6.37 AU - 6.69 AU

Year: 10947 Days

Day: 17.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 86,234,631 km

• M1: 40,242 km (0.115 R)
• M2: 180,714 km (0.076 R)
• M3: 673,639 km (0.04 R)
• M4: 783,444 km (0.068 R)
• M5: 896,839 km (0.112 R)
• M6: 1,157,140 km (0.072 R)
• M7: 1,867,430 km (0.082 R)
• M8: 1,996,832 km (0.069 R)
• M9: 2,257,881 km (0.05 R)
• M10: 2,700,242 km (0.053 R)
• M11: 6,082,350 km (0.104 R)
• M12: 7,067,452 km (0.098 R)
• M13: 8,078,584 km (0.104 R)
• M14: 15,115,219 km (0.069 R)
• M15: 19,027,802 km (0.09 R)
• M16: 20,964,346 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 351.3

Radius: 4.1

Gravity: 20.9 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 7.57 AU - 9.01 AU

Year: 15658 Days

Day: 23.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 86,234,631 km

• M1: 51,013 km (0.107 R)
• M2: 183,856 km (0.068 R)
• M3: 337,642 km (0.059 R)
• M4: 502,798 km (0.096 R)
• M5: 688,001 km (0.096 R)
• M6: 1,057,059 km (0.068 R)
• M7: 1,488,798 km (0.054 R)
• M8: 1,620,743 km (0.093 R)
• M9: 1,760,468 km (0.047 R)
• M10: 2,502,772 km (0.095 R)
• M11: 4,046,622 km (0.061 R)
• M12: 5,147,663 km (0.055 R)
• M13: 5,382,831 km (0.117 R)
• M14: 5,660,335 km (0.105 R)
• M15: 6,667,876 km (0.036 R)
• M16: 6,866,692 km (0.1 R)
• M17: 8,054,649 km (0.07 R)
• M18: 8,838,990 km (0.112 R)
• M19: 9,522,204 km (0.116 R)
• M20: 10,239,974 km (0.089 R)
• M21: 12,014,803 km (0.12 R)
• M22: 13,919,783 km (0.117 R)
• M23: 18,084,438 km (0.073 R)
• M24: 19,746,919 km (0.096 R)
• M25: 31,679,892 km (0.102 R)
• M26: 37,104,610 km (0.111 R)
• M27: 39,385,529 km (0.085 R)
• M28: 40,297,178 km (0.056 R)
• M29: 40,957,055 km (0.093 R)
• M30: 42,027,577 km (0.069 R)
• M31: 44,084,847 km (0.117 R)
• M32: 47,368,221 km (0.092 R)
• M33: 48,398,950 km (0.063 R)
• M34: 51,426,213 km (0.083 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 913.1

Radius: 3.9

Gravity: 60.03 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 8.87 AU - 11.23 AU

Year: 20901 Days

Day: 23.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 86,234,631 km

• M1: 52,808 km (0.071 R)
• M2: 246,687 km (0.118 R)
• M3: 369,507 km (0.119 R)
• M4: 846,724 km (0.049 R)
• M5: 991,535 km (0.037 R)
• M6: 1,138,739 km (0.117 R)
• M7: 1,598,603 km (0.08 R)
• M8: 1,821,354 km (0.054 R)
• M9: 2,001,919 km (0.054 R)
• M10: 2,238,732 km (0.109 R)
• M11: 2,899,207 km (0.051 R)
• M12: 4,036,151 km (0.091 R)
• M13: 4,378,730 km (0.083 R)
• M14: 7,240,986 km (0.039 R)
• M15: 8,939,670 km (0.108 R)
• M16: 9,111,258 km (0.11 R)
• M17: 11,548,507 km (0.032 R)
• M18: 12,807,074 km (0.055 R)
• M19: 13,771,082 km (0.1 R)
• M20: 14,387,725 km (0.059 R)
• M21: 15,103,251 km (0.116 R)
• M22: 16,262,934 km (0.11 R)
• M23: 18,020,709 km (0.108 R)
• M24: 18,664,728 km (0.076 R)
• M25: 21,292,714 km (0.102 R)
• M26: 27,750,405 km (0.112 R)
• M27: 30,765,251 km (0.119 R)
• M28: 32,083,507 km (0.078 R)
• M29: 35,114,959 km (0.067 R)
• M30: 35,973,650 km (0.103 R)
• M31: 42,059,292 km (0.057 R)
• M32: 46,533,315 km (0.084 R)
• M33: 54,486,088 km (0.048 R)
• M34: 55,443,364 km (0.119 R)
• M35: 57,588,748 km (0.112 R)
• M36: 62,668,942 km (0.104 R)
• M37: 71,177,320 km (0.065 R)
• M38: 76,062,439 km (0.041 R)
• M39: 76,300,449 km (0.073 R)
• M40: 77,498,130 km (0.109 R)
• M41: 78,222,632 km (0.076 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: 455 - 16,092 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit