🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.5

Radius: 12.1

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.7 AU - 1.1 AU

Year: 560 Days

Day: 6.4 Hours

Environment

Temp: -144 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,879,758 km

• M1: 150,495 km (0.084 R)
• M2: 565,929 km (0.114 R)
• M3: 949,647 km (0.066 R)
• M4: 1,421,629 km (0.074 R)
• M5: 1,865,037 km (0.097 R)
• M6: 2,276,730 km (0.115 R)
• M7: 2,675,109 km (0.111 R)
• M8: 3,062,119 km (0.101 R)
• M9: 3,576,287 km (0.102 R)
• M10: 4,890,504 km (0.106 R)
• M11: 5,561,151 km (0.094 R)
• M12: 6,641,697 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 819.2

Radius: 9.4

Gravity: 9.27 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.69 AU - 1.15 AU

Year: 579 Days

Day: 14.3 Hours

Environment

Temp: -147 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 67,879,758 km

• M1: 116,986 km (0.094 R)
• M2: 551,418 km (0.085 R)
• M3: 905,217 km (0.102 R)
• M4: 1,220,419 km (0.03 R)
• M5: 1,736,233 km (0.084 R)
• M6: 2,036,476 km (0.106 R)
• M7: 2,666,283 km (0.037 R)
• M8: 2,997,493 km (0.1 R)
• M9: 3,407,839 km (0.07 R)
• M10: 3,827,162 km (0.099 R)
• M11: 4,326,520 km (0.112 R)
• M12: 5,859,898 km (0.1 R)
• M13: 7,613,634 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.3

Radius: 8.8

Gravity: 6.58 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.89 AU - 0.97 AU

Year: 588 Days

Day: 10.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 67,879,758 km

• M1: 110,254 km (0.066 R)
• M2: 395,986 km (0.08 R)
• M3: 916,885 km (0.073 R)
• M4: 1,539,811 km (0.092 R)
• M5: 3,965,391 km (0.092 R)
• M6: 4,481,354 km (0.118 R)
• M7: 4,849,813 km (0.1 R)
• M8: 5,389,263 km (0.054 R)
• M9: 5,664,972 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964.5

Radius: 14.6

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.29 AU - 1.43 AU

Year: 1040 Days

Day: 10.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 67,879,758 km

• M1: 182,659 km (0.064 R)
• M2: 666,309 km (0.116 R)
• M3: 1,269,488 km (0.06 R)
• M4: 1,943,725 km (0.063 R)
• M5: 2,453,106 km (0.117 R)
• M6: 3,592,144 km (0.044 R)
• M7: 4,549,720 km (0.109 R)
• M8: 5,258,365 km (0.109 R)
• M9: 6,061,855 km (0.094 R)
• M10: 7,419,456 km (0.109 R)
• M11: 9,594,908 km (0.066 R)
• M12: 10,278,870 km (0.066 R)
• M13: 10,895,662 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.1

Radius: 8.8

Gravity: 10.6 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.62 AU - 1.84 AU

Year: 1493 Days

Day: 10.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 67,879,758 km

• M1: 120,576 km (0.074 R)
• M2: 395,537 km (0.119 R)
• M3: 920,775 km (0.101 R)
• M4: 1,200,972 km (0.111 R)
• M5: 1,833,920 km (0.068 R)
• M6: 2,178,743 km (0.078 R)
• M7: 2,487,962 km (0.113 R)
• M8: 2,898,010 km (0.051 R)
• M9: 3,242,534 km (0.078 R)
• M10: 4,068,613 km (0.12 R)
• M11: 4,760,055 km (0.039 R)
• M12: 5,617,998 km (0.056 R)
• M13: 6,107,931 km (0.087 R)
• M14: 7,693,818 km (0.081 R)
• M15: 8,298,343 km (0.067 R)
• M16: 8,627,459 km (0.1 R)
• M17: 9,058,899 km (0.076 R)
• M18: 11,109,287 km (0.09 R)
• M19: 11,731,764 km (0.094 R)
• M20: 13,410,103 km (0.114 R)
• M21: 13,697,779 km (0.068 R)
• M22: 14,242,914 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 900.4

Radius: 12.4

Gravity: 5.86 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.37 AU - 3.69 AU

Year: 3460 Days

Day: 8.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 67,879,758 km

• M1: 154,235 km (0.101 R)
• M2: 718,967 km (0.05 R)
• M3: 1,554,621 km (0.057 R)
• M4: 1,992,793 km (0.066 R)
• M5: 2,998,989 km (0.064 R)
• M6: 3,408,438 km (0.118 R)
• M7: 4,182,308 km (0.04 R)
• M8: 5,173,244 km (0.111 R)
• M9: 5,822,349 km (0.114 R)
• M10: 6,897,509 km (0.103 R)
• M11: 8,242,543 km (0.086 R)
• M12: 9,835,761 km (0.112 R)
• M13: 11,313,189 km (0.112 R)
• M14: 13,030,723 km (0.075 R)
• M15: 14,337,460 km (0.099 R)
• M16: 15,022,768 km (0.11 R)
• M17: 15,564,761 km (0.11 R)
• M18: 16,630,346 km (0.111 R)
• M19: 17,565,034 km (0.103 R)
• M20: 25,341,580 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 314.8

Radius: 9.5

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 3.67 AU - 3.77 AU

Year: 4707 Days

Day: 8.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 67,879,758 km

• M1: 129,552 km (0.095 R)
• M2: 1,048,382 km (0.117 R)
• M3: 1,575,266 km (0.118 R)
• M4: 2,257,133 km (0.116 R)
• M5: 5,606,031 km (0.038 R)
• M6: 7,087,798 km (0.092 R)
• M7: 7,432,022 km (0.118 R)
• M8: 12,037,841 km (0.111 R)
• M9: 13,839,149 km (0.111 R)
• M10: 16,186,639 km (0.101 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 367.2

Radius: 9.6

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 5.1 AU - 5.32 AU

Year: 7801 Days

Day: 11.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 67,879,758 km

• M1: 119,529 km (0.093 R)
• M2: 1,007,093 km (0.099 R)
• M3: 1,744,610 km (0.11 R)
• M4: 2,069,687 km (0.108 R)
• M5: 3,403,800 km (0.088 R)
• M6: 4,769,031 km (0.116 R)
• M7: 5,770,439 km (0.109 R)
• M8: 11,986,529 km (0.116 R)
• M9: 17,657,037 km (0.117 R)
• M10: 30,312,418 km (0.089 R)
• M11: 32,898,965 km (0.079 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 421.3

Radius: 5.9

Gravity: 12.1 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 6.98 AU - 10.3 AU

Year: 16660 Days

Day: 23.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 67,879,758 km

• M1: 73,901 km (0.029 R)
• M2: 278,252 km (0.056 R)
• M3: 1,224,758 km (0.109 R)
• M4: 1,761,365 km (0.07 R)
• M5: 2,302,311 km (0.036 R)
• M6: 2,505,465 km (0.112 R)
• M7: 4,192,181 km (0.107 R)
• M8: 4,622,275 km (0.071 R)
• M9: 5,825,939 km (0.092 R)
• M10: 6,051,383 km (0.069 R)
• M11: 6,480,131 km (0.048 R)
• M12: 8,352,348 km (0.101 R)
• M13: 10,613,221 km (0.099 R)
• M14: 15,071,537 km (0.109 R)
• M15: 16,151,035 km (0.068 R)
• M16: 16,447,388 km (0.099 R)
• M17: 16,974,721 km (0.088 R)
• M18: 17,435,632 km (0.117 R)
• M19: 18,950,310 km (0.096 R)
• M20: 20,206,484 km (0.088 R)
• M21: 20,550,708 km (0.085 R)
• M22: 20,986,337 km (0.093 R)
• M23: 22,513,732 km (0.044 R)
• M24: 24,598,527 km (0.088 R)
• M25: 27,015,730 km (0.095 R)
• M26: 28,068,001 km (0.12 R)
• M27: 31,045,448 km (0.118 R)
• M28: 33,262,488 km (0.08 R)
• M29: 34,962,070 km (0.12 R)
• M30: 37,102,665 km (0.117 R)
• M31: 37,489,226 km (0.106 R)
• M32: 38,270,576 km (0.091 R)
• M33: 39,865,589 km (0.09 R)
• M34: 46,989,738 km (0.116 R)
• M35: 53,102,008 km (0.071 R)
• M36: 55,924,471 km (0.102 R)
• M37: 56,432,805 km (0.069 R)
• M38: 57,115,270 km (0.115 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 530.6

Radius: 3.6

Gravity: 40.94 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 7.59 AU - 11.37 AU

Year: 19148 Days

Day: 22.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 67,879,758 km

• M1: 44,730 km (0.056 R)
• M2: 402,119 km (0.102 R)
• M3: 1,018,163 km (0.083 R)
• M4: 1,209,798 km (0.035 R)
• M5: 3,236,101 km (0.117 R)
• M6: 4,289,270 km (0.097 R)
• M7: 4,858,191 km (0.098 R)
• M8: 6,308,991 km (0.041 R)
• M9: 7,499,940 km (0.087 R)
• M10: 7,879,769 km (0.076 R)
• M11: 9,043,191 km (0.04 R)
• M12: 9,693,344 km (0.109 R)
• M13: 12,021,685 km (0.074 R)
• M14: 12,279,592 km (0.03 R)
• M15: 13,765,248 km (0.068 R)
• M16: 14,190,256 km (0.118 R)
• M17: 15,366,394 km (0.114 R)
• M18: 18,078,603 km (0.088 R)
• M19: 23,014,286 km (0.037 R)
• M20: 24,221,242 km (0.053 R)
• M21: 24,426,340 km (0.106 R)
• M22: 35,431,508 km (0.089 R)
• M23: 38,691,844 km (0.113 R)
• M24: 40,973,062 km (0.096 R)
• M25: 41,410,486 km (0.111 R)
• M26: 47,705,265 km (0.111 R)
• M27: 48,351,528 km (0.107 R)
• M28: 61,573,736 km (0.105 R)
• M29: 62,725,041 km (0.091 R)
• M30: 64,282,205 km (0.114 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: 432 - 16,016 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit