🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.2

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.48 AU - 0.78 AU

Year: 328 Days

Day: 28.9 Hours

Environment

Temp: -133 °C

Axial Tilt: 3.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 25,897,512 km

• M1: 130,449 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 949.6

Radius: 8.7

Gravity: 12.55 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.6 AU - 0.82 AU

Year: 392 Days

Day: 9.1 Hours

Environment

Temp: -133 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,897,512 km

• M1: 108,309 km (0.105 R)
• M2: 484,697 km (0.101 R)
• M3: 1,285,195 km (0.11 R)
• M4: 1,891,515 km (0.102 R)
• M5: 2,457,594 km (0.105 R)
• M6: 2,749,310 km (0.104 R)
• M7: 3,143,650 km (0.085 R)
• M8: 3,728,129 km (0.117 R)
• M9: 4,753,622 km (0.091 R)
• M10: 5,373,406 km (0.055 R)
• M11: 5,677,090 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 911.4

Radius: 10

Gravity: 9.11 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.95 AU - 1.11 AU

Year: 686 Days

Day: 12.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 25,897,512 km

• M1: 124,465 km (0.106 R)
• M2: 527,332 km (0.099 R)
• M3: 896,989 km (0.098 R)
• M4: 1,265,897 km (0.069 R)
• M5: 1,661,883 km (0.083 R)
• M6: 2,407,179 km (0.048 R)
• M7: 3,320,774 km (0.034 R)
• M8: 3,901,961 km (0.112 R)
• M9: 4,385,312 km (0.111 R)
• M10: 4,890,654 km (0.079 R)
• M11: 5,285,742 km (0.085 R)
• M12: 6,242,719 km (0.088 R)
• M13: 6,861,157 km (0.108 R)
• M14: 7,449,974 km (0.065 R)
• M15: 7,901,161 km (0.026 R)
• M16: 8,320,334 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 911.4

Radius: 12.5

Gravity: 5.83 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.27 AU - 1.99 AU

Year: 1365 Days

Day: 11.6 Hours

Environment

Temp: -180 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 25,897,512 km

• M1: 155,432 km (0.104 R)
• M2: 625,618 km (0.086 R)
• M3: 1,053,468 km (0.116 R)
• M4: 1,674,599 km (0.066 R)
• M5: 2,467,617 km (0.049 R)
• M6: 3,292,799 km (0.082 R)
• M7: 4,275,507 km (0.08 R)
• M8: 4,937,179 km (0.053 R)
• M9: 5,733,787 km (0.076 R)
• M10: 6,893,021 km (0.062 R)
• M11: 8,734,122 km (0.101 R)
• M12: 9,574,862 km (0.074 R)
• M13: 10,031,584 km (0.097 R)
• M14: 10,468,709 km (0.06 R)
• M15: 11,095,076 km (0.108 R)
• M16: 11,709,325 km (0.082 R)
• M17: 12,966,695 km (0.072 R)
• M18: 13,567,031 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 795.4

Radius: 9.8

Gravity: 8.28 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 3.3 AU - 3.52 AU

Year: 4131 Days

Day: 12.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 25,897,512 km

• M1: 126,709 km (0.094 R)
• M2: 482,902 km (0.072 R)
• M3: 1,042,099 km (0.11 R)
• M4: 1,356,105 km (0.052 R)
• M5: 2,153,910 km (0.111 R)
• M6: 2,459,688 km (0.113 R)
• M7: 3,160,554 km (0.1 R)
• M8: 3,726,333 km (0.101 R)
• M9: 4,033,907 km (0.114 R)
• M10: 4,852,506 km (0.111 R)
• M11: 6,784,862 km (0.066 R)
• M12: 7,483,933 km (0.051 R)
• M13: 7,868,848 km (0.099 R)
• M14: 8,640,623 km (0.092 R)
• M15: 13,022,644 km (0.102 R)
• M16: 13,735,478 km (0.067 R)
• M17: 14,366,931 km (0.114 R)
• M18: 14,853,124 km (0.107 R)
• M19: 15,238,787 km (0.051 R)
• M20: 16,261,438 km (0.108 R)
• M21: 17,880,237 km (0.104 R)
• M22: 18,633,163 km (0.09 R)
• M23: 20,744,288 km (0.085 R)
• M24: 21,786,835 km (0.098 R)
• M25: 26,148,062 km (0.119 R)
• M26: 27,281,864 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 713

Radius: 11.7

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 3.1 AU - 4.78 AU

Year: 5130 Days

Day: 5.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 25,897,512 km

• M1: 145,559 km (0.107 R)
• M2: 584,628 km (0.107 R)
• M3: 1,160,879 km (0.059 R)
• M4: 2,541,069 km (0.056 R)
• M5: 3,680,556 km (0.093 R)
• M6: 4,427,499 km (0.109 R)
• M7: 5,244,752 km (0.066 R)
• M8: 5,793,776 km (0.074 R)
• M9: 8,154,580 km (0.114 R)
• M10: 8,576,745 km (0.105 R)
• M11: 8,973,179 km (0.087 R)
• M12: 10,682,934 km (0.095 R)
• M13: 11,376,918 km (0.114 R)
• M14: 15,307,153 km (0.111 R)
• M15: 15,773,599 km (0.117 R)
• M16: 16,673,879 km (0.109 R)
• M17: 17,735,276 km (0.081 R)
• M18: 18,185,117 km (0.075 R)
• M19: 20,269,763 km (0.028 R)
• M20: 20,975,117 km (0.09 R)
• M21: 27,474,547 km (0.091 R)
• M22: 28,425,690 km (0.085 R)
• M23: 28,865,358 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.1

Radius: 10.3

Gravity: 6.64 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 4.31 AU - 5.49 AU

Year: 7115 Days

Day: 9.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 25,897,512 km

• M1: 131,646 km (0.069 R)
• M2: 459,116 km (0.097 R)
• M3: 811,269 km (0.119 R)
• M4: 1,134,849 km (0.086 R)
• M5: 1,966,165 km (0.106 R)
• M6: 2,372,622 km (0.109 R)
• M7: 2,954,857 km (0.087 R)
• M8: 3,334,985 km (0.049 R)
• M9: 4,324,874 km (0.077 R)
• M10: 6,556,276 km (0.063 R)
• M11: 9,828,431 km (0.063 R)
• M12: 11,479,841 km (0.069 R)
• M13: 11,841,569 km (0.093 R)
• M14: 15,699,698 km (0.065 R)
• M15: 18,015,324 km (0.1 R)
• M16: 18,574,969 km (0.049 R)
• M17: 19,950,671 km (0.06 R)
• M18: 26,583,841 km (0.066 R)
• M19: 27,035,776 km (0.069 R)
• M20: 27,955,204 km (0.076 R)
• M21: 29,373,093 km (0.067 R)
• M22: 30,541,452 km (0.036 R)
• M23: 33,283,133 km (0.069 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171.1

Radius: 11

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 5.33 AU - 6.03 AU

Year: 8880 Days

Day: 11.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 25,897,512 km

• M1: 136,882 km (0.091 R)
• M2: 530,175 km (0.118 R)
• M3: 947,703 km (0.112 R)
• M4: 1,497,475 km (0.079 R)
• M5: 1,912,908 km (0.102 R)
• M6: 2,803,015 km (0.064 R)
• M7: 3,927,542 km (0.112 R)
• M8: 5,412,900 km (0.116 R)
• M9: 5,865,733 km (0.12 R)
• M10: 6,912,319 km (0.109 R)
• M11: 9,096,149 km (0.045 R)
• M12: 10,669,021 km (0.085 R)
• M13: 11,066,802 km (0.082 R)
• M14: 12,080,776 km (0.1 R)
• M15: 13,613,257 km (0.069 R)
• M16: 14,668,370 km (0.109 R)
• M17: 16,062,922 km (0.025 R)
• M18: 18,665,326 km (0.103 R)
• M19: 19,114,120 km (0.047 R)
• M20: 20,099,970 km (0.118 R)
• M21: 20,639,569 km (0.087 R)
• M22: 21,677,180 km (0.047 R)
• M23: 24,690,680 km (0.086 R)
• M24: 27,393,016 km (0.1 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 780

Radius: 5.6

Gravity: 24.87 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 8.01 AU - 8.17 AU

Year: 15095 Days

Day: 15.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 25,897,512 km

• M1: 96,341 km (0.054 R)
• M2: 603,927 km (0.074 R)
• M3: 829,071 km (0.102 R)
• M4: 1,560,904 km (0.06 R)
• M5: 1,881,941 km (0.087 R)
• M6: 2,988,517 km (0.083 R)
• M7: 3,679,958 km (0.082 R)
• M8: 3,883,262 km (0.114 R)
• M9: 4,704,554 km (0.11 R)
• M10: 5,014,221 km (0.099 R)
• M11: 6,557,772 km (0.101 R)
• M12: 8,797,552 km (0.088 R)
• M13: 9,645,024 km (0.09 R)
• M14: 13,241,955 km (0.039 R)
• M15: 17,972,539 km (0.063 R)
• M16: 18,899,746 km (0.104 R)
• M17: 28,161,650 km (0.044 R)
• M18: 30,696,436 km (0.109 R)
• M19: 34,137,337 km (0.098 R)
• M20: 34,906,718 km (0.073 R)
• M21: 38,512,476 km (0.072 R)
• M22: 41,773,560 km (0.034 R)
• M23: 42,505,991 km (0.102 R)
• M24: 43,098,099 km (0.108 R)
• M25: 44,907,486 km (0.037 R)
• M26: 47,397,991 km (0.073 R)
• M27: 50,307,969 km (0.09 R)
• M28: 53,506,670 km (0.078 R)
• M29: 54,023,681 km (0.099 R)
• M30: 65,078,814 km (0.085 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 19.6

Radius: 5

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 10.16 AU - 11.56 AU

Year: 23478 Days

Day: 22.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 25,897,512 km

• M1: 62,532 km (0.108 R)
• M2: 553,961 km (0.075 R)
• M3: 2,432,162 km (0.028 R)
• M4: 4,085,219 km (0.104 R)
• M5: 5,234,429 km (0.034 R)
• M6: 6,309,290 km (0.093 R)
• M7: 7,422,448 km (0.111 R)
• M8: 8,475,767 km (0.063 R)
• M9: 9,907,418 km (0.074 R)
• M10: 12,416,922 km (0.102 R)
• M11: 12,800,043 km (0.104 R)
• M12: 15,211,411 km (0.092 R)
• M13: 17,488,739 km (0.107 R)
• M14: 18,583,945 km (0.11 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 345 - 12,390 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit