🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636.5

Radius: 11.9

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.42 AU - 0.62 AU

Year: 259 Days

Day: 13.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,805,918 km

• M1: 147,952 km (0.108 R)
• M2: 541,993 km (0.066 R)
• M3: 962,214 km (0.043 R)
• M4: 1,460,823 km (0.106 R)
• M5: 1,839,007 km (0.099 R)
• M6: 2,259,975 km (0.033 R)
• M7: 2,836,226 km (0.12 R)
• M8: 3,280,233 km (0.052 R)
• M9: 3,860,822 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386

Radius: 10.2

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.62 AU - 0.72 AU

Year: 379 Days

Day: 10.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 50,805,918 km

• M1: 126,859 km (0.095 R)
• M2: 455,077 km (0.109 R)
• M3: 844,480 km (0.107 R)
• M4: 1,646,474 km (0.104 R)
• M5: 2,023,012 km (0.067 R)
• M6: 2,414,510 km (0.102 R)
• M7: 3,092,338 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 685.7

Radius: 9.4

Gravity: 7.76 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.98 AU - 1.4 AU

Year: 896 Days

Day: 5.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 50,805,918 km

• M1: 116,836 km (0.065 R)
• M2: 473,477 km (0.053 R)
• M3: 765,792 km (0.091 R)
• M4: 1,450,501 km (0.066 R)
• M5: 2,025,406 km (0.037 R)
• M6: 2,843,706 km (0.041 R)
• M7: 4,070,408 km (0.105 R)
• M8: 4,617,787 km (0.073 R)
• M9: 4,972,932 km (0.098 R)
• M10: 6,212,949 km (0.118 R)
• M11: 6,893,769 km (0.082 R)
• M12: 7,335,083 km (0.094 R)
• M13: 8,146,352 km (0.108 R)
• M14: 8,880,728 km (0.111 R)
• M15: 9,375,598 km (0.102 R)

Asteroid Belt

Center: 2.62 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.4

Radius: 14.7

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 3.55 AU - 4.55 AU

Year: 5626 Days

Day: 13.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 50,805,918 km

• M1: 182,958 km (0.043 R)
• M2: 684,560 km (0.062 R)
• M3: 1,153,549 km (0.083 R)
• M4: 2,763,671 km (0.073 R)
• M5: 3,355,630 km (0.119 R)
• M6: 7,057,429 km (0.113 R)
• M7: 7,691,575 km (0.036 R)
• M8: 9,238,117 km (0.081 R)
• M9: 10,085,140 km (0.112 R)
• M10: 11,029,701 km (0.119 R)
• M11: 11,547,609 km (0.115 R)
• M12: 13,304,786 km (0.106 R)
• M13: 15,759,388 km (0.053 R)
• M14: 24,518,343 km (0.102 R)
• M15: 27,491,750 km (0.059 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 706.6

Radius: 3.5

Gravity: 57.68 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 5.46 AU - 6.96 AU

Year: 10682 Days

Day: 18 Hours

Environment

Temp: -238 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 50,805,918 km

• M1: 43,533 km (0.096 R)
• M2: 287,527 km (0.049 R)
• M3: 407,056 km (0.092 R)
• M4: 699,819 km (0.091 R)
• M5: 1,038,808 km (0.077 R)
• M6: 1,381,686 km (0.094 R)
• M7: 1,624,034 km (0.054 R)
• M8: 2,048,593 km (0.076 R)
• M9: 2,997,044 km (0.092 R)
• M10: 3,328,553 km (0.088 R)
• M11: 3,683,848 km (0.107 R)
• M12: 5,160,528 km (0.1 R)
• M13: 5,428,608 km (0.114 R)
• M14: 6,364,193 km (0.12 R)
• M15: 7,235,750 km (0.112 R)
• M16: 7,830,102 km (0.119 R)
• M17: 11,691,074 km (0.081 R)
• M18: 13,866,077 km (0.099 R)
• M19: 14,514,883 km (0.078 R)
• M20: 16,439,011 km (0.082 R)
• M21: 19,553,040 km (0.095 R)
• M22: 28,333,687 km (0.119 R)
• M23: 31,426,922 km (0.049 R)
• M24: 36,782,975 km (0.078 R)
• M25: 38,779,658 km (0.117 R)
• M26: 38,906,816 km (0.03 R)
• M27: 40,454,256 km (0.103 R)
• M28: 45,201,296 km (0.105 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 38.2

Radius: 3

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 5.44 AU - 8.72 AU

Year: 13004 Days

Day: 22.3 Hours

Environment

Temp: -240 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 50,805,918 km

• M1: 37,998 km (0.067 R)
• M2: 841,488 km (0.082 R)
• M3: 1,662,481 km (0.112 R)
• M4: 1,817,764 km (0.082 R)
• M5: 2,568,446 km (0.079 R)
• M6: 3,410,083 km (0.088 R)
• M7: 5,078,848 km (0.102 R)
• M8: 8,099,079 km (0.101 R)
• M9: 8,371,497 km (0.038 R)
• M10: 11,827,656 km (0.086 R)
• M11: 20,348,602 km (0.05 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 282.2

Radius: 7.8

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 6.52 AU - 8.5 AU

Year: 14206 Days

Day: 20.8 Hours

Environment

Temp: -237 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 50,805,918 km

• M1: 100,829 km (0.082 R)
• M2: 456,872 km (0.071 R)
• M3: 799,750 km (0.068 R)
• M4: 1,205,310 km (0.065 R)
• M5: 1,757,775 km (0.079 R)
• M6: 2,075,371 km (0.091 R)
• M7: 2,545,408 km (0.108 R)
• M8: 3,358,173 km (0.099 R)
• M9: 3,722,893 km (0.104 R)
• M10: 4,389,501 km (0.037 R)
• M11: 5,008,986 km (0.098 R)
• M12: 5,651,658 km (0.047 R)
• M13: 6,240,176 km (0.059 R)
• M14: 6,717,244 km (0.044 R)
• M15: 6,983,977 km (0.034 R)
• M16: 7,827,260 km (0.118 R)
• M17: 8,080,230 km (0.114 R)
• M18: 9,286,886 km (0.112 R)
• M19: 11,129,932 km (0.097 R)
• M20: 15,923,347 km (0.103 R)
• M21: 20,153,077 km (0.064 R)
• M22: 22,019,610 km (0.118 R)
• M23: 22,440,129 km (0.095 R)
• M24: 23,909,928 km (0.112 R)
• M25: 39,392,411 km (0.073 R)
• M26: 40,136,810 km (0.11 R)
• M27: 40,638,411 km (0.054 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 393.1

Radius: 6.8

Gravity: 8.5 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 5.8 AU - 9.36 AU

Year: 14405 Days

Day: 20.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 50,805,918 km

• M1: 85,271 km (0.094 R)
• M2: 400,473 km (0.075 R)
• M3: 759,808 km (0.068 R)
• M4: 996,771 km (0.102 R)
• M5: 1,399,937 km (0.079 R)
• M6: 2,612,278 km (0.083 R)
• M7: 3,024,420 km (0.111 R)
• M8: 6,501,075 km (0.091 R)
• M9: 6,932,216 km (0.109 R)
• M10: 7,175,312 km (0.083 R)
• M11: 7,808,111 km (0.078 R)
• M12: 8,340,530 km (0.096 R)
• M13: 9,727,153 km (0.09 R)
• M14: 10,083,644 km (0.091 R)
• M15: 10,822,658 km (0.055 R)
• M16: 11,150,277 km (0.113 R)
• M17: 12,587,015 km (0.088 R)
• M18: 17,407,507 km (0.087 R)
• M19: 19,333,430 km (0.092 R)
• M20: 20,638,073 km (0.056 R)
• M21: 21,740,460 km (0.051 R)
• M22: 25,473,974 km (0.076 R)
• M23: 25,956,577 km (0.109 R)
• M24: 28,358,820 km (0.044 R)
• M25: 28,877,176 km (0.106 R)
• M26: 33,369,750 km (0.088 R)
• M27: 34,885,924 km (0.084 R)
• M28: 36,937,360 km (0.069 R)
• M29: 44,400,947 km (0.034 R)
• M30: 46,090,805 km (0.111 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: 485 - 13,824 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit