🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.89

Radius: 0.95

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.59 AU - 0.75 AU

Year: 349 Days

Day: 38.5 Hours

Environment

Temp: -144 °C

Axial Tilt: 35 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 768.9

Radius: 10.5

Gravity: 6.97 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.92 AU - 1.26 AU

Year: 724 Days

Day: 10.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 89,185,108 km

• M1: 131,048 km (0.11 R)
• M2: 483,500 km (0.092 R)
• M3: 846,425 km (0.116 R)
• M4: 1,240,914 km (0.039 R)
• M5: 1,907,074 km (0.094 R)
• M6: 2,343,002 km (0.117 R)
• M7: 3,052,694 km (0.115 R)
• M8: 3,811,604 km (0.111 R)
• M9: 4,267,429 km (0.076 R)
• M10: 4,607,914 km (0.116 R)
• M11: 5,492,785 km (0.112 R)
• M12: 5,936,193 km (0.111 R)
• M13: 6,445,275 km (0.105 R)
• M14: 7,183,989 km (0.082 R)
• M15: 8,148,895 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 456.7

Radius: 14.8

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.09 AU - 1.19 AU

Year: 774 Days

Day: 14.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 89,185,108 km

• M1: 185,801 km (0.086 R)
• M2: 699,220 km (0.117 R)
• M3: 1,301,352 km (0.115 R)
• M4: 1,851,872 km (0.094 R)
• M5: 2,506,961 km (0.092 R)
• M6: 3,441,499 km (0.112 R)
• M7: 4,026,277 km (0.086 R)
• M8: 4,566,475 km (0.105 R)
• M9: 5,223,658 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.9

Radius: 14

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.54 AU - 2.26 AU

Year: 1665 Days

Day: 12.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 89,185,108 km

• M1: 174,132 km (0.09 R)
• M2: 712,684 km (0.102 R)
• M3: 1,162,226 km (0.108 R)
• M4: 1,751,342 km (0.113 R)
• M5: 2,275,533 km (0.076 R)
• M6: 3,026,365 km (0.083 R)
• M7: 4,499,006 km (0.106 R)
• M8: 6,100,003 km (0.108 R)
• M9: 7,255,048 km (0.063 R)
• M10: 8,127,353 km (0.12 R)
• M11: 8,576,446 km (0.051 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609.6

Radius: 13.2

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 2.21 AU - 3.13 AU

Year: 2774 Days

Day: 14 Hours

Environment

Temp: -197 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 89,185,108 km

• M1: 164,707 km (0.06 R)
• M2: 595,699 km (0.079 R)
• M3: 1,300,005 km (0.105 R)
• M4: 1,924,427 km (0.104 R)
• M5: 3,226,228 km (0.114 R)
• M6: 3,997,704 km (0.108 R)
• M7: 4,866,269 km (0.117 R)
• M8: 5,309,827 km (0.109 R)
• M9: 6,012,787 km (0.086 R)
• M10: 7,332,091 km (0.102 R)
• M11: 7,822,772 km (0.1 R)
• M12: 9,898,293 km (0.051 R)
• M13: 10,346,338 km (0.069 R)
• M14: 10,886,087 km (0.064 R)
• M15: 11,648,887 km (0.054 R)
• M16: 12,793,760 km (0.06 R)
• M17: 13,552,221 km (0.096 R)
• M18: 15,906,891 km (0.093 R)
• M19: 19,320,116 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.9

Radius: 10.2

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 2.16 AU - 3.46 AU

Year: 2995 Days

Day: 6.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 89,185,108 km

• M1: 127,308 km (0.117 R)
• M2: 680,222 km (0.116 R)
• M3: 1,060,051 km (0.067 R)
• M4: 1,495,231 km (0.108 R)
• M5: 2,047,995 km (0.072 R)
• M6: 2,936,307 km (0.077 R)
• M7: 4,081,030 km (0.055 R)
• M8: 4,404,311 km (0.118 R)
• M9: 5,082,737 km (0.098 R)
• M10: 7,486,625 km (0.072 R)
• M11: 8,743,248 km (0.104 R)
• M12: 10,266,154 km (0.091 R)
• M13: 11,706,033 km (0.083 R)
• M14: 12,214,666 km (0.077 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 269.5

Radius: 3.8

Gravity: 18.66 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 6.68 AU - 10.34 AU

Year: 15784 Days

Day: 18.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 89,185,108 km

• M1: 72,555 km (0.102 R)
• M2: 245,789 km (0.114 R)
• M3: 902,674 km (0.102 R)
• M4: 1,410,259 km (0.089 R)
• M5: 3,046,112 km (0.099 R)
• M6: 4,768,432 km (0.071 R)
• M7: 7,579,077 km (0.028 R)
• M8: 11,004,270 km (0.078 R)
• M9: 14,546,897 km (0.098 R)
• M10: 29,673,934 km (0.091 R)
• M11: 30,620,590 km (0.119 R)
• M12: 35,774,685 km (0.072 R)
• M13: 39,304,447 km (0.049 R)
• M14: 39,682,331 km (0.1 R)
• M15: 40,573,336 km (0.093 R)
• M16: 44,954,609 km (0.087 R)
• M17: 47,046,137 km (0.054 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 452.3

Radius: 5.3

Gravity: 16.1 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 8.54 AU - 8.7 AU

Year: 16091 Days

Day: 17.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 89,185,108 km

• M1: 66,122 km (0.119 R)
• M2: 422,614 km (0.103 R)
• M3: 918,232 km (0.106 R)
• M4: 1,363,435 km (0.103 R)
• M5: 2,781,772 km (0.116 R)
• M6: 3,232,212 km (0.08 R)
• M7: 3,785,125 km (0.117 R)
• M8: 3,982,894 km (0.06 R)
• M9: 4,277,153 km (0.094 R)
• M10: 4,554,507 km (0.119 R)
• M11: 5,748,149 km (0.115 R)
• M12: 6,201,430 km (0.119 R)
• M13: 8,980,959 km (0.093 R)
• M14: 9,747,648 km (0.104 R)
• M15: 10,668,273 km (0.098 R)
• M16: 11,293,891 km (0.11 R)
• M17: 13,644,223 km (0.06 R)
• M18: 14,313,075 km (0.104 R)
• M19: 15,571,493 km (0.094 R)
• M20: 15,788,110 km (0.111 R)
• M21: 17,751,283 km (0.112 R)
• M22: 18,226,406 km (0.03 R)
• M23: 21,882,578 km (0.052 R)
• M24: 22,245,652 km (0.045 R)
• M25: 25,396,183 km (0.105 R)
• M26: 29,158,570 km (0.062 R)
• M27: 31,747,361 km (0.09 R)
• M28: 35,848,587 km (0.066 R)
• M29: 36,353,180 km (0.098 R)
• M30: 37,505,832 km (0.025 R)
• M31: 43,635,904 km (0.112 R)
• M32: 45,671,183 km (0.067 R)
• M33: 47,162,973 km (0.1 R)
• M34: 49,461,245 km (0.119 R)
• M35: 56,122,090 km (0.111 R)
• M36: 57,144,292 km (0.086 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 879

Radius: 7.4

Gravity: 16.05 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 9.92 AU - 11.42 AU

Year: 22161 Days

Day: 20 Hours

Environment

Temp: -234 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 89,185,108 km

• M1: 92,003 km (0.084 R)
• M2: 361,728 km (0.114 R)
• M3: 670,348 km (0.105 R)
• M4: 1,314,666 km (0.109 R)
• M5: 1,756,578 km (0.104 R)
• M6: 2,778,182 km (0.073 R)
• M7: 3,568,208 km (0.102 R)
• M8: 4,572,010 km (0.039 R)
• M9: 5,667,964 km (0.095 R)
• M10: 6,977,843 km (0.12 R)
• M11: 7,991,369 km (0.102 R)
• M12: 10,433,853 km (0.102 R)
• M13: 13,711,542 km (0.097 R)
• M14: 14,646,978 km (0.061 R)
• M15: 15,293,690 km (0.098 R)
• M16: 17,348,566 km (0.113 R)
• M17: 18,628,525 km (0.089 R)
• M18: 21,272,817 km (0.062 R)
• M19: 22,737,829 km (0.116 R)
• M20: 25,867,566 km (0.113 R)
• M21: 34,924,072 km (0.111 R)
• M22: 36,662,997 km (0.051 R)
• M23: 53,644,450 km (0.118 R)
• M24: 56,347,235 km (0.073 R)
• M25: 57,931,925 km (0.088 R)
• M26: 58,937,223 km (0.073 R)
• M27: 60,982,525 km (0.108 R)
• M28: 64,352,965 km (0.079 R)
• M29: 67,181,113 km (0.076 R)
• M30: 68,290,680 km (0.088 R)
• M31: 69,864,450 km (0.079 R)
• M32: 81,312,726 km (0.116 R)
• M33: 83,334,691 km (0.116 R)
• M34: 86,430,170 km (0.111 R)
• M35: 87,215,858 km (0.048 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 795.9

Radius: 7.5

Gravity: 14.15 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 10.1 AU - 12.12 AU

Year: 23545 Days

Day: 24.1 Hours

Environment

Temp: -239 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 89,185,108 km

• M1: 101,876 km (0.079 R)
• M2: 604,226 km (0.118 R)
• M3: 1,387,520 km (0.102 R)
• M4: 1,751,193 km (0.104 R)
• M5: 2,498,733 km (0.109 R)
• M6: 3,123,454 km (0.074 R)
• M7: 5,020,654 km (0.083 R)
• M8: 5,924,375 km (0.084 R)
• M9: 6,369,279 km (0.114 R)
• M10: 6,693,906 km (0.082 R)
• M11: 8,765,089 km (0.087 R)
• M12: 9,050,970 km (0.067 R)
• M13: 9,884,679 km (0.09 R)
• M14: 10,257,178 km (0.075 R)
• M15: 11,772,904 km (0.113 R)
• M16: 14,915,955 km (0.116 R)
• M17: 26,769,043 km (0.063 R)
• M18: 31,444,276 km (0.085 R)
• M19: 38,131,749 km (0.072 R)
• M20: 38,894,549 km (0.09 R)
• M21: 39,823,252 km (0.104 R)
• M22: 45,367,050 km (0.068 R)
• M23: 50,301,835 km (0.101 R)
• M24: 50,850,859 km (0.082 R)
• M25: 63,750,833 km (0.094 R)
• M26: 68,791,534 km (0.1 R)
• M27: 73,855,571 km (0.041 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: 187 - 10,583 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit