🌌 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 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 741.5

Radius: 14.9

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.51 AU - 0.59 AU

Year: 277 Days

Day: 13.6 Hours

Environment

Temp: -135 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 80,117,794 km

• M1: 185,352 km (0.058 R)
• M2: 754,572 km (0.067 R)
• M3: 1,254,378 km (0.116 R)
• M4: 1,864,588 km (0.091 R)
• M5: 2,479,286 km (0.085 R)
• M6: 3,590,648 km (0.056 R)
• M7: 4,223,297 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 860.5

Radius: 13.1

Gravity: 5.01 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.52 AU - 1.56 AU

Year: 1296 Days

Day: 14.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 80,117,794 km

• M1: 162,912 km (0.06 R)
• M2: 612,005 km (0.086 R)
• M3: 1,478,326 km (0.095 R)
• M4: 1,908,719 km (0.07 R)
• M5: 2,637,261 km (0.098 R)
• M6: 3,147,240 km (0.051 R)
• M7: 3,608,749 km (0.063 R)
• M8: 4,885,418 km (0.064 R)
• M9: 5,616,652 km (0.031 R)
• M10: 6,253,191 km (0.096 R)
• M11: 7,141,802 km (0.112 R)
• M12: 8,808,323 km (0.098 R)
• M13: 9,293,469 km (0.093 R)
• M14: 10,087,534 km (0.075 R)
• M15: 10,619,055 km (0.074 R)
• M16: 11,204,282 km (0.094 R)
• M17: 12,514,759 km (0.098 R)
• M18: 13,051,217 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 803.4

Radius: 8.6

Gravity: 10.86 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.29 AU - 2.03 AU

Year: 1451 Days

Day: 10.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 80,117,794 km

• M1: 109,805 km (0.115 R)
• M2: 705,803 km (0.097 R)
• M3: 1,033,721 km (0.097 R)
• M4: 1,394,252 km (0.065 R)
• M5: 1,858,903 km (0.032 R)
• M6: 2,922,394 km (0.081 R)
• M7: 3,875,183 km (0.115 R)
• M8: 4,253,516 km (0.077 R)
• M9: 5,949,358 km (0.066 R)
• M10: 6,857,417 km (0.082 R)
• M11: 7,412,275 km (0.1 R)
• M12: 7,883,209 km (0.098 R)
• M13: 8,521,992 km (0.101 R)
• M14: 8,946,252 km (0.114 R)
• M15: 9,480,167 km (0.065 R)
• M16: 10,236,384 km (0.088 R)
• M17: 10,925,880 km (0.101 R)
• M18: 11,282,223 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414.5

Radius: 12.2

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.76 AU - 2.34 AU

Year: 1991 Days

Day: 7.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 80,117,794 km

• M1: 152,440 km (0.084 R)
• M2: 535,860 km (0.041 R)
• M3: 1,100,891 km (0.091 R)
• M4: 2,029,894 km (0.077 R)
• M5: 2,791,646 km (0.114 R)
• M6: 3,489,370 km (0.091 R)
• M7: 4,393,689 km (0.104 R)
• M8: 4,861,033 km (0.032 R)
• M9: 5,646,721 km (0.05 R)
• M10: 6,739,683 km (0.085 R)
• M11: 7,470,918 km (0.099 R)
• M12: 7,968,630 km (0.045 R)
• M13: 8,488,333 km (0.03 R)
• M14: 9,030,475 km (0.073 R)
• M15: 9,563,642 km (0.112 R)
• M16: 10,487,708 km (0.093 R)
• M17: 12,398,821 km (0.098 R)
• M18: 12,900,872 km (0.091 R)
• M19: 13,376,443 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328.3

Radius: 12.2

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.98 AU - 2.26 AU

Year: 2094 Days

Day: 12.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 80,117,794 km

• M1: 151,842 km (0.068 R)
• M2: 1,007,392 km (0.09 R)
• M3: 1,407,716 km (0.087 R)
• M4: 2,291,540 km (0.104 R)
• M5: 2,769,206 km (0.091 R)
• M6: 3,343,662 km (0.071 R)
• M7: 5,645,375 km (0.082 R)
• M8: 6,720,984 km (0.079 R)
• M9: 7,177,407 km (0.082 R)
• M10: 9,399,683 km (0.092 R)
• M11: 10,432,357 km (0.075 R)
• M12: 12,084,067 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.7

Radius: 8

Gravity: 6.2 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 2.12 AU - 2.86 AU

Year: 2665 Days

Day: 8.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 80,117,794 km

• M1: 100,081 km (0.084 R)
• M2: 409,001 km (0.088 R)
• M3: 786,586 km (0.102 R)
• M4: 1,152,053 km (0.04 R)
• M5: 1,648,718 km (0.09 R)
• M6: 2,306,799 km (0.118 R)
• M7: 3,161,302 km (0.097 R)
• M8: 3,563,720 km (0.067 R)
• M9: 4,451,285 km (0.072 R)
• M10: 4,763,495 km (0.093 R)
• M11: 5,202,565 km (0.049 R)
• M12: 5,716,434 km (0.104 R)
• M13: 6,471,005 km (0.093 R)
• M14: 7,149,282 km (0.055 R)
• M15: 8,519,898 km (0.043 R)
• M16: 9,035,263 km (0.084 R)
• M17: 9,743,160 km (0.111 R)
• M18: 11,230,911 km (0.079 R)
• M19: 12,370,697 km (0.118 R)
• M20: 13,413,543 km (0.053 R)
• M21: 13,803,096 km (0.116 R)
• M22: 15,578,524 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 77.7

Radius: 9.5

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 3.49 AU - 4.51 AU

Year: 5426 Days

Day: 9.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 80,117,794 km

• M1: 118,182 km (0.118 R)
• M2: 436,676 km (0.086 R)
• M3: 952,041 km (0.091 R)
• M4: 2,259,526 km (0.042 R)
• M5: 2,910,277 km (0.084 R)
• M6: 3,296,239 km (0.051 R)
• M7: 4,602,528 km (0.091 R)
• M8: 5,883,235 km (0.068 R)
• M9: 7,165,888 km (0.105 R)
• M10: 7,584,612 km (0.047 R)
• M11: 8,750,578 km (0.108 R)
• M12: 12,800,192 km (0.09 R)
• M13: 14,359,301 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 389.9

Radius: 8

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 4.69 AU - 6.85 AU

Year: 9401 Days

Day: 20 Hours

Environment

Temp: -219 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 80,117,794 km

• M1: 115,490 km (0.092 R)
• M2: 390,151 km (0.108 R)
• M3: 847,921 km (0.085 R)
• M4: 1,660,836 km (0.114 R)
• M5: 2,424,981 km (0.086 R)
• M6: 4,627,661 km (0.085 R)
• M7: 6,020,118 km (0.118 R)
• M8: 7,066,854 km (0.12 R)
• M9: 9,160,925 km (0.115 R)
• M10: 11,432,718 km (0.116 R)
• M11: 14,231,694 km (0.09 R)
• M12: 16,075,488 km (0.109 R)
• M13: 17,322,386 km (0.109 R)
• M14: 22,076,008 km (0.079 R)
• M15: 24,622,014 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 761.8

Radius: 7

Gravity: 15.55 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 5.26 AU - 6.28 AU

Year: 9401 Days

Day: 15.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 80,117,794 km

• M1: 87,066 km (0.079 R)
• M2: 364,420 km (0.12 R)
• M3: 658,380 km (0.11 R)
• M4: 972,237 km (0.085 R)
• M5: 1,559,707 km (0.059 R)
• M6: 1,781,112 km (0.063 R)
• M7: 2,287,950 km (0.102 R)
• M8: 2,759,632 km (0.114 R)
• M9: 3,636,575 km (0.084 R)
• M10: 4,364,219 km (0.083 R)
• M11: 4,777,857 km (0.066 R)
• M12: 7,128,937 km (0.106 R)
• M13: 7,577,431 km (0.104 R)
• M14: 7,915,373 km (0.117 R)
• M15: 8,263,188 km (0.115 R)
• M16: 10,465,119 km (0.037 R)
• M17: 11,812,547 km (0.117 R)
• M18: 12,324,621 km (0.116 R)
• M19: 12,911,044 km (0.032 R)
• M20: 16,614,040 km (0.064 R)
• M21: 17,112,650 km (0.097 R)
• M22: 25,367,311 km (0.098 R)
• M23: 25,649,303 km (0.055 R)
• M24: 31,411,514 km (0.085 R)
• M25: 38,473,281 km (0.111 R)
• M26: 43,234,233 km (0.026 R)
• M27: 43,636,652 km (0.12 R)
• M28: 44,312,834 km (0.083 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 663

Radius: 4.4

Gravity: 34.25 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 8.06 AU - 12.26 AU

Year: 21965 Days

Day: 18.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 80,117,794 km

• M1: 54,753 km (0.081 R)
• M2: 335,847 km (0.119 R)
• M3: 1,701,676 km (0.089 R)
• M4: 2,304,106 km (0.116 R)
• M5: 3,487,426 km (0.118 R)
• M6: 4,914,440 km (0.046 R)
• M7: 6,157,598 km (0.111 R)
• M8: 10,122,839 km (0.045 R)
• M9: 10,612,772 km (0.069 R)
• M10: 12,383,712 km (0.119 R)
• M11: 12,661,814 km (0.095 R)
• M12: 14,190,555 km (0.1 R)
• M13: 15,434,910 km (0.099 R)
• M14: 15,919,607 km (0.108 R)
• M15: 17,872,308 km (0.049 R)
• M16: 21,240,205 km (0.062 R)
• M17: 26,128,166 km (0.05 R)
• M18: 35,339,355 km (0.115 R)
• M19: 39,229,947 km (0.067 R)
• M20: 41,046,963 km (0.095 R)
• M21: 41,820,384 km (0.109 R)
• M22: 50,096,288 km (0.035 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: 371 - 10,826 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit