🌌 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 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.2

Radius: 11.5

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.63 AU - 0.71 AU

Year: 366 Days

Day: 9 Hours

Environment

Temp: -147 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 66,522,909 km

• M1: 146,307 km (0.11 R)
• M2: 561,291 km (0.037 R)
• M3: 1,333,665 km (0.098 R)
• M4: 1,986,959 km (0.04 R)
• M5: 2,895,317 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441

Radius: 13.6

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.88 AU - 1.1 AU

Year: 657 Days

Day: 13.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,522,909 km

• M1: 169,345 km (0.097 R)
• M2: 602,281 km (0.117 R)
• M3: 1,050,775 km (0.119 R)
• M4: 1,652,907 km (0.032 R)
• M5: 2,100,952 km (0.107 R)
• M6: 3,262,580 km (0.083 R)
• M7: 3,725,137 km (0.04 R)
• M8: 4,203,251 km (0.079 R)
• M9: 5,201,368 km (0.069 R)
• M10: 5,908,667 km (0.037 R)
• M11: 6,679,096 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.5

Radius: 15

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.87 AU - 1.19 AU

Year: 697 Days

Day: 8.7 Hours

Environment

Temp: -169 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,522,909 km

• M1: 186,549 km (0.031 R)
• M2: 720,314 km (0.115 R)
• M3: 1,327,980 km (0.102 R)
• M4: 1,885,232 km (0.071 R)
• M5: 2,563,360 km (0.093 R)
• M6: 3,535,147 km (0.111 R)
• M7: 4,057,393 km (0.088 R)
• M8: 4,713,679 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915

Radius: 11.1

Gravity: 7.43 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.73 AU - 2.41 AU

Year: 1986 Days

Day: 9.9 Hours

Environment

Temp: -199 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 66,522,909 km

• M1: 138,079 km (0.114 R)
• M2: 533,616 km (0.079 R)
• M3: 942,616 km (0.112 R)
• M4: 1,340,247 km (0.085 R)
• M5: 1,930,860 km (0.093 R)
• M6: 2,573,682 km (0.102 R)
• M7: 3,252,707 km (0.11 R)
• M8: 3,875,183 km (0.109 R)
• M9: 4,967,547 km (0.089 R)
• M10: 5,622,038 km (0.051 R)
• M11: 6,333,226 km (0.111 R)
• M12: 6,849,189 km (0.09 R)
• M13: 7,363,806 km (0.112 R)
• M14: 9,030,176 km (0.074 R)
• M15: 10,519,124 km (0.1 R)
• M16: 11,166,135 km (0.069 R)
• M17: 11,519,335 km (0.082 R)
• M18: 12,456,117 km (0.072 R)
• M19: 13,311,219 km (0.112 R)
• M20: 14,995,840 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.1

Radius: 10.3

Gravity: 8.68 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 2.6 AU - 3.52 AU

Year: 3570 Days

Day: 9.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 66,522,909 km

• M1: 129,402 km (0.089 R)
• M2: 463,155 km (0.06 R)
• M3: 850,613 km (0.037 R)
• M4: 1,354,010 km (0.102 R)
• M5: 1,711,848 km (0.087 R)
• M6: 2,104,992 km (0.059 R)
• M7: 2,809,149 km (0.064 R)
• M8: 4,094,793 km (0.031 R)
• M9: 4,512,021 km (0.066 R)
• M10: 5,112,507 km (0.083 R)
• M11: 5,514,327 km (0.047 R)
• M12: 6,082,799 km (0.107 R)
• M13: 6,816,128 km (0.069 R)
• M14: 9,099,290 km (0.071 R)
• M15: 10,820,713 km (0.072 R)
• M16: 11,216,250 km (0.083 R)
• M17: 12,993,323 km (0.116 R)
• M18: 13,390,206 km (0.068 R)
• M19: 14,052,326 km (0.026 R)
• M20: 14,576,368 km (0.087 R)
• M21: 15,277,234 km (0.058 R)
• M22: 15,719,445 km (0.085 R)
• M23: 16,456,364 km (0.107 R)
• M24: 17,454,631 km (0.041 R)
• M25: 21,097,040 km (0.1 R)
• M26: 21,576,800 km (0.083 R)
• M27: 23,131,720 km (0.112 R)
• M28: 25,835,403 km (0.079 R)
• M29: 26,226,900 km (0.054 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 26.5

Radius: 6

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 4.78 AU - 7.68 AU

Year: 10370 Days

Day: 16.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 66,522,909 km

• M1: 74,649 km (0.076 R)
• M2: 317,746 km (0.106 R)
• M3: 891,903 km (0.088 R)
• M4: 1,290,880 km (0.117 R)
• M5: 1,747,752 km (0.118 R)
• M6: 2,359,458 km (0.064 R)
• M7: 2,620,655 km (0.093 R)
• M8: 2,978,194 km (0.068 R)
• M9: 3,772,410 km (0.101 R)
• M10: 4,034,206 km (0.096 R)
• M11: 4,636,188 km (0.087 R)
• M12: 5,114,452 km (0.096 R)
• M13: 7,077,774 km (0.117 R)
• M14: 9,979,524 km (0.049 R)
• M15: 12,127,750 km (0.116 R)
• M16: 12,370,398 km (0.096 R)
• M17: 12,698,914 km (0.095 R)
• M18: 13,895,099 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 390.9

Radius: 4.6

Gravity: 18.47 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 5.37 AU - 7.93 AU

Year: 11436 Days

Day: 23.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 66,522,909 km

• M1: 57,296 km (0.033 R)
• M2: 231,727 km (0.115 R)
• M3: 592,408 km (0.06 R)
• M4: 768,783 km (0.087 R)
• M5: 1,479,972 km (0.102 R)
• M6: 1,918,892 km (0.09 R)
• M7: 2,328,640 km (0.104 R)
• M8: 2,963,085 km (0.12 R)
• M9: 3,437,759 km (0.066 R)
• M10: 4,147,302 km (0.078 R)
• M11: 4,536,555 km (0.1 R)
• M12: 4,799,399 km (0.069 R)
• M13: 5,323,590 km (0.051 R)
• M14: 8,355,041 km (0.108 R)
• M15: 9,203,560 km (0.097 R)
• M16: 10,759,976 km (0.105 R)
• M17: 12,091,996 km (0.084 R)
• M18: 12,427,245 km (0.101 R)
• M19: 14,074,616 km (0.071 R)
• M20: 14,383,386 km (0.103 R)
• M21: 17,509,982 km (0.073 R)
• M22: 18,011,284 km (0.026 R)
• M23: 20,034,895 km (0.087 R)
• M24: 22,623,686 km (0.074 R)
• M25: 23,910,377 km (0.071 R)
• M26: 24,705,490 km (0.082 R)
• M27: 24,974,317 km (0.079 R)
• M28: 27,868,139 km (0.115 R)
• M29: 29,546,327 km (0.114 R)
• M30: 29,950,690 km (0.087 R)
• M31: 34,200,018 km (0.096 R)
• M32: 35,321,852 km (0.096 R)
• M33: 41,049,506 km (0.12 R)
• M34: 41,933,181 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 774.8

Radius: 4.4

Gravity: 40.02 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 7.44 AU - 8.76 AU

Year: 15373 Days

Day: 22.2 Hours

Environment

Temp: -241 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 66,522,909 km

• M1: 54,753 km (0.087 R)
• M2: 214,673 km (0.088 R)
• M3: 387,010 km (0.106 R)
• M4: 801,845 km (0.085 R)
• M5: 2,294,532 km (0.088 R)
• M6: 2,807,952 km (0.113 R)
• M7: 3,003,327 km (0.116 R)
• M8: 3,476,355 km (0.112 R)
• M9: 6,071,280 km (0.086 R)
• M10: 6,315,723 km (0.084 R)
• M11: 7,314,139 km (0.078 R)
• M12: 8,313,453 km (0.085 R)
• M13: 8,615,042 km (0.095 R)
• M14: 8,819,991 km (0.108 R)
• M15: 8,975,872 km (0.038 R)
• M16: 10,176,096 km (0.066 R)
• M17: 12,429,040 km (0.106 R)
• M18: 13,775,421 km (0.069 R)
• M19: 15,141,698 km (0.045 R)
• M20: 16,595,939 km (0.105 R)
• M21: 17,235,021 km (0.087 R)
• M22: 19,164,086 km (0.116 R)
• M23: 20,406,047 km (0.072 R)
• M24: 24,452,670 km (0.037 R)
• M25: 25,489,233 km (0.112 R)
• M26: 29,002,838 km (0.112 R)
• M27: 29,812,312 km (0.097 R)
• M28: 30,046,284 km (0.097 R)
• M29: 31,476,140 km (0.09 R)
• M30: 33,075,640 km (0.077 R)
• M31: 34,342,286 km (0.119 R)
• M32: 36,036,781 km (0.111 R)
• M33: 39,591,525 km (0.05 R)
• M34: 48,510,102 km (0.063 R)
• M35: 48,996,145 km (0.114 R)
• M36: 51,475,879 km (0.104 R)
• M37: 57,042,865 km (0.04 R)
• M38: 57,584,409 km (0.099 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 362 - 16,306 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit