🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.87

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.5 AU - 0.54 AU

Year: 242 Days

Day: 19.2 Hours

Environment

Temp: -111 °C

Axial Tilt: 26 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 54,117,524 km

• M1: 57,146 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421

Radius: 14.5

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.72 AU - 1.06 AU

Year: 542 Days

Day: 8.4 Hours

Environment

Temp: -144 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,117,524 km

• M1: 180,265 km (0.089 R)
• M2: 756,516 km (0.104 R)
• M3: 1,216,979 km (0.088 R)
• M4: 1,897,051 km (0.112 R)
• M5: 2,363,048 km (0.107 R)
• M6: 2,937,953 km (0.105 R)
• M7: 3,879,970 km (0.081 R)
• M8: 4,514,116 km (0.031 R)
• M9: 4,984,900 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.9

Radius: 8.7

Gravity: 11.59 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.83 AU - 1.11 AU

Year: 617 Days

Day: 6.2 Hours

Environment

Temp: -148 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 54,117,524 km

• M1: 108,159 km (0.07 R)
• M2: 414,984 km (0.119 R)
• M3: 719,267 km (0.032 R)
• M4: 1,235,379 km (0.034 R)
• M5: 1,779,915 km (0.091 R)
• M6: 2,340,459 km (0.096 R)
• M7: 2,917,308 km (0.078 R)
• M8: 3,490,418 km (0.092 R)
• M9: 4,001,145 km (0.074 R)
• M10: 4,742,103 km (0.12 R)
• M11: 5,497,423 km (0.11 R)
• M12: 6,070,233 km (0.034 R)
• M13: 6,453,353 km (0.094 R)
• M14: 6,830,938 km (0.035 R)
• M15: 7,112,780 km (0.116 R)
• M16: 7,746,477 km (0.12 R)
• M17: 8,053,302 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988.8

Radius: 12.4

Gravity: 6.43 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.92 AU - 1.4 AU

Year: 807 Days

Day: 10.6 Hours

Environment

Temp: -157 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 54,117,524 km

• M1: 154,235 km (0.102 R)
• M2: 545,583 km (0.08 R)
• M3: 985,401 km (0.115 R)
• M4: 1,696,440 km (0.09 R)
• M5: 2,241,574 km (0.066 R)
• M6: 3,149,634 km (0.062 R)
• M7: 4,389,501 km (0.111 R)
• M8: 5,466,755 km (0.112 R)
• M9: 6,206,068 km (0.095 R)
• M10: 7,222,735 km (0.082 R)
• M11: 7,659,411 km (0.077 R)
• M12: 8,347,412 km (0.096 R)
• M13: 9,730,294 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 949

Radius: 10.7

Gravity: 8.29 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.2 AU - 1.58 AU

Year: 1058 Days

Day: 10.5 Hours

Environment

Temp: -174 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 54,117,524 km

• M1: 133,142 km (0.118 R)
• M2: 546,331 km (0.083 R)
• M3: 930,050 km (0.058 R)
• M4: 1,313,918 km (0.092 R)
• M5: 2,635,615 km (0.112 R)
• M6: 3,188,529 km (0.109 R)
• M7: 4,240,052 km (0.058 R)
• M8: 4,619,133 km (0.082 R)
• M9: 5,080,344 km (0.107 R)
• M10: 5,550,829 km (0.096 R)
• M11: 6,392,018 km (0.077 R)
• M12: 6,770,800 km (0.045 R)
• M13: 7,678,111 km (0.073 R)
• M14: 8,382,567 km (0.079 R)
• M15: 10,108,927 km (0.108 R)
• M16: 11,848,002 km (0.027 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981.6

Radius: 11.7

Gravity: 7.17 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.29 AU - 1.49 AU

Year: 1058 Days

Day: 7.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 54,117,524 km

• M1: 145,559 km (0.11 R)
• M2: 529,576 km (0.092 R)
• M3: 904,170 km (0.075 R)
• M4: 1,354,160 km (0.092 R)
• M5: 1,758,074 km (0.077 R)
• M6: 2,165,429 km (0.044 R)
• M7: 2,636,214 km (0.1 R)
• M8: 3,061,520 km (0.114 R)
• M9: 4,585,025 km (0.071 R)
• M10: 5,024,843 km (0.104 R)
• M11: 5,640,887 km (0.047 R)
• M12: 6,215,044 km (0.1 R)
• M13: 7,074,184 km (0.119 R)
• M14: 7,795,695 km (0.111 R)
• M15: 8,396,480 km (0.085 R)
• M16: 8,939,969 km (0.104 R)
• M17: 9,385,621 km (0.112 R)
• M18: 10,613,969 km (0.065 R)
• M19: 11,875,677 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.4

Radius: 12.4

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.65 AU - 1.93 AU

Year: 1546 Days

Day: 5.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 54,117,524 km

• M1: 154,535 km (0.106 R)
• M2: 594,203 km (0.098 R)
• M3: 1,003,503 km (0.043 R)
• M4: 1,395,150 km (0.105 R)
• M5: 1,839,007 km (0.1 R)
• M6: 2,531,794 km (0.083 R)
• M7: 3,065,560 km (0.086 R)
• M8: 3,725,286 km (0.047 R)
• M9: 4,191,284 km (0.088 R)
• M10: 5,111,909 km (0.091 R)
• M11: 5,529,736 km (0.097 R)
• M12: 6,843,953 km (0.099 R)
• M13: 7,490,964 km (0.092 R)
• M14: 7,886,949 km (0.109 R)
• M15: 8,844,974 km (0.053 R)
• M16: 10,920,196 km (0.067 R)
• M17: 11,356,573 km (0.104 R)
• M18: 12,342,273 km (0.113 R)
• M19: 12,976,718 km (0.043 R)
• M20: 14,353,916 km (0.079 R)
• M21: 14,745,862 km (0.06 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 853.5

Radius: 14.9

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.78 AU - 2.04 AU

Year: 1704 Days

Day: 11.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 54,117,524 km

• M1: 185,352 km (0.117 R)
• M2: 934,837 km (0.117 R)
• M3: 1,475,185 km (0.065 R)
• M4: 2,006,407 km (0.102 R)
• M5: 2,639,056 km (0.104 R)
• M6: 3,306,412 km (0.068 R)
• M7: 4,103,619 km (0.043 R)
• M8: 6,432,858 km (0.108 R)
• M9: 7,507,868 km (0.046 R)
• M10: 8,238,654 km (0.074 R)
• M11: 9,341,041 km (0.096 R)
• M12: 11,084,005 km (0.057 R)
• M13: 11,570,947 km (0.052 R)
• M14: 13,620,587 km (0.111 R)
• M15: 14,136,101 km (0.079 R)
• M16: 14,798,969 km (0.066 R)
• M17: 15,761,781 km (0.054 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 451.2

Radius: 7.9

Gravity: 7.23 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 5.74 AU - 7.16 AU

Year: 10577 Days

Day: 22.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 54,117,524 km

• M1: 98,286 km (0.1 R)
• M2: 725,699 km (0.06 R)
• M3: 1,435,541 km (0.093 R)
• M4: 3,010,508 km (0.085 R)
• M5: 3,414,272 km (0.047 R)
• M6: 5,369,217 km (0.113 R)
• M7: 6,900,052 km (0.039 R)
• M8: 10,244,313 km (0.078 R)
• M9: 10,847,940 km (0.116 R)
• M10: 11,906,195 km (0.084 R)
• M11: 12,181,306 km (0.116 R)
• M12: 12,744,093 km (0.119 R)
• M13: 17,390,304 km (0.12 R)
• M14: 19,818,576 km (0.11 R)
• M15: 22,049,081 km (0.057 R)
• M16: 28,444,988 km (0.047 R)
• M17: 28,937,015 km (0.073 R)
• M18: 32,328,549 km (0.11 R)
• M19: 32,649,436 km (0.104 R)
• M20: 35,976,044 km (0.092 R)
• M21: 41,253,707 km (0.092 R)
• M22: 42,265,737 km (0.098 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 623.1

Radius: 4.5

Gravity: 30.77 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 5.71 AU - 8.77 AU

Year: 12578 Days

Day: 23.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 54,117,524 km

• M1: 55,950 km (0.105 R)
• M2: 245,789 km (0.07 R)
• M3: 432,637 km (0.103 R)
• M4: 1,006,195 km (0.1 R)
• M5: 1,472,342 km (0.058 R)
• M6: 1,666,520 km (0.112 R)
• M7: 1,810,882 km (0.116 R)
• M8: 2,143,588 km (0.085 R)
• M9: 2,354,072 km (0.052 R)
• M10: 3,864,263 km (0.053 R)
• M11: 4,206,094 km (0.11 R)
• M12: 5,182,070 km (0.098 R)
• M13: 5,421,726 km (0.064 R)
• M14: 6,338,761 km (0.118 R)
• M15: 6,935,956 km (0.109 R)
• M16: 8,013,659 km (0.095 R)
• M17: 8,196,019 km (0.112 R)
• M18: 8,904,065 km (0.069 R)
• M19: 9,754,978 km (0.092 R)
• M20: 10,173,553 km (0.043 R)
• M21: 11,046,606 km (0.104 R)
• M22: 12,146,749 km (0.078 R)
• M23: 12,692,631 km (0.108 R)
• M24: 13,128,260 km (0.11 R)
• M25: 13,318,100 km (0.117 R)
• M26: 13,703,015 km (0.113 R)
• M27: 17,661,674 km (0.104 R)
• M28: 19,487,067 km (0.116 R)
• M29: 23,787,707 km (0.087 R)
• M30: 24,544,971 km (0.066 R)
• M31: 28,152,823 km (0.073 R)
• M32: 32,327,950 km (0.074 R)
• M33: 33,022,683 km (0.108 R)
• M34: 33,256,504 km (0.032 R)
• M35: 37,529,019 km (0.105 R)
• M36: 44,672,617 km (0.081 R)
• M37: 51,563,843 km (0.104 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 304 - 17,109 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit