🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.07

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.48 AU - 0.6 AU

Year: 256 Days

Day: 39.9 Hours

Environment

Temp: -115 °C

Axial Tilt: 141.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 40,429,804 km

• M1: 88,263 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.1

Radius: 9.8

Gravity: 7.27 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.9 AU - 1 AU

Year: 598 Days

Day: 8.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 40,429,804 km

• M1: 135,685 km (0.112 R)
• M2: 714,779 km (0.075 R)
• M3: 1,061,546 km (0.117 R)
• M4: 1,437,037 km (0.06 R)
• M5: 1,800,859 km (0.108 R)
• M6: 2,207,167 km (0.113 R)
• M7: 2,620,506 km (0.077 R)
• M8: 3,157,413 km (0.077 R)
• M9: 3,472,167 km (0.096 R)
• M10: 4,269,224 km (0.117 R)
• M11: 4,849,065 km (0.089 R)
• M12: 5,287,088 km (0.098 R)
• M13: 6,012,787 km (0.08 R)
• M14: 6,803,412 km (0.041 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 713.4

Radius: 13.8

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.84 AU - 1.17 AU

Year: 646 Days

Day: 11 Hours

Environment

Temp: -165 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,429,804 km

• M1: 171,589 km (0.069 R)
• M2: 730,187 km (0.089 R)
• M3: 1,265,748 km (0.085 R)
• M4: 1,823,598 km (0.079 R)
• M5: 2,851,485 km (0.1 R)
• M6: 3,690,579 km (0.102 R)
• M7: 4,161,364 km (0.106 R)
• M8: 4,737,166 km (0.079 R)
• M9: 5,527,043 km (0.109 R)
• M10: 6,264,112 km (0.083 R)
• M11: 6,728,912 km (0.052 R)
• M12: 7,173,517 km (0.108 R)
• M13: 7,660,159 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.4

Radius: 13

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 1.12 AU - 1.82 AU

Year: 1151 Days

Day: 6.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 40,429,804 km

• M1: 161,715 km (0.112 R)
• M2: 692,489 km (0.056 R)
• M3: 1,156,242 km (0.03 R)
• M4: 1,708,108 km (0.095 R)
• M5: 2,482,277 km (0.065 R)
• M6: 3,207,528 km (0.11 R)
• M7: 4,613,150 km (0.092 R)
• M8: 5,823,247 km (0.119 R)
• M9: 6,467,116 km (0.106 R)
• M10: 7,521,631 km (0.039 R)
• M11: 8,371,048 km (0.102 R)
• M12: 9,253,077 km (0.056 R)
• M13: 9,779,811 km (0.113 R)
• M14: 11,271,601 km (0.04 R)
• M15: 11,801,028 km (0.064 R)
• M16: 12,645,209 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 881.2

Radius: 14.3

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 1.68 AU - 2.06 AU

Year: 1651 Days

Day: 6.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 40,429,804 km

• M1: 177,872 km (0.082 R)
• M2: 1,002,455 km (0.119 R)
• M3: 1,454,690 km (0.059 R)
• M4: 2,025,256 km (0.098 R)
• M5: 2,916,560 km (0.025 R)
• M6: 3,664,250 km (0.031 R)
• M7: 4,244,092 km (0.079 R)
• M8: 5,076,753 km (0.071 R)
• M9: 6,212,201 km (0.079 R)
• M10: 7,041,123 km (0.108 R)
• M11: 7,538,985 km (0.092 R)
• M12: 8,330,208 km (0.103 R)
• M13: 9,047,230 km (0.086 R)
• M14: 9,805,243 km (0.095 R)
• M15: 10,287,098 km (0.081 R)
• M16: 10,857,215 km (0.098 R)
• M17: 11,905,597 km (0.116 R)
• M18: 14,555,125 km (0.097 R)
• M19: 15,047,302 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.5

Radius: 12.8

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.53 AU - 2.43 AU

Year: 1799 Days

Day: 11.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 40,429,804 km

• M1: 159,172 km (0.107 R)
• M2: 666,159 km (0.11 R)
• M3: 1,284,298 km (0.05 R)
• M4: 2,012,241 km (0.1 R)
• M5: 2,840,415 km (0.073 R)
• M6: 3,439,405 km (0.078 R)
• M7: 3,974,516 km (0.093 R)
• M8: 4,485,543 km (0.05 R)
• M9: 5,663,626 km (0.082 R)
• M10: 6,066,792 km (0.093 R)
• M11: 6,668,774 km (0.07 R)
• M12: 7,760,689 km (0.115 R)
• M13: 8,779,600 km (0.119 R)
• M14: 9,584,287 km (0.076 R)
• M15: 10,056,118 km (0.094 R)
• M16: 11,716,356 km (0.092 R)
• M17: 12,217,209 km (0.113 R)
• M18: 12,893,541 km (0.116 R)
• M19: 13,344,429 km (0.078 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 338.5

Radius: 13.3

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 2.05 AU - 3.41 AU

Year: 2912 Days

Day: 9.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 138.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,429,804 km

• M1: 166,951 km (0.091 R)
• M2: 757,863 km (0.082 R)
• M3: 1,466,957 km (0.09 R)
• M4: 2,833,982 km (0.054 R)
• M5: 4,094,344 km (0.074 R)
• M6: 4,588,915 km (0.106 R)
• M7: 5,651,808 km (0.084 R)
• M8: 12,103,216 km (0.057 R)
• M9: 15,164,437 km (0.078 R)
• M10: 15,871,885 km (0.09 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 782

Radius: 14.2

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 3.84 AU - 6.36 AU

Year: 7437 Days

Day: 11 Hours

Environment

Temp: -215 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 40,429,804 km

• M1: 176,525 km (0.118 R)
• M2: 1,124,378 km (0.096 R)
• M3: 1,608,177 km (0.098 R)
• M4: 2,055,176 km (0.059 R)
• M5: 2,757,837 km (0.057 R)
• M6: 3,640,614 km (0.076 R)
• M7: 4,161,813 km (0.063 R)
• M8: 6,767,957 km (0.051 R)
• M9: 8,844,675 km (0.048 R)
• M10: 10,124,634 km (0.086 R)
• M11: 11,682,098 km (0.043 R)
• M12: 15,714,808 km (0.088 R)
• M13: 16,902,764 km (0.11 R)
• M14: 19,308,896 km (0.114 R)
• M15: 20,826,716 km (0.109 R)
• M16: 22,751,443 km (0.066 R)
• M17: 23,672,217 km (0.06 R)
• M18: 32,581,369 km (0.108 R)
• M19: 35,949,715 km (0.086 R)
• M20: 38,125,317 km (0.11 R)
• M21: 40,874,776 km (0.067 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 749.6

Radius: 7.3

Gravity: 14.07 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 5.26 AU - 7.84 AU

Year: 10824 Days

Day: 17.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 40,429,804 km

• M1: 91,703 km (0.084 R)
• M2: 355,295 km (0.118 R)
• M3: 600,187 km (0.027 R)
• M4: 1,466,358 km (0.034 R)
• M5: 1,730,997 km (0.059 R)
• M6: 1,992,943 km (0.055 R)
• M7: 2,416,305 km (0.096 R)
• M8: 2,702,486 km (0.057 R)
• M9: 3,011,106 km (0.045 R)
• M10: 3,294,295 km (0.077 R)
• M11: 3,543,824 km (0.075 R)
• M12: 4,764,692 km (0.025 R)
• M13: 5,084,682 km (0.111 R)
• M14: 5,767,896 km (0.096 R)
• M15: 6,986,071 km (0.066 R)
• M16: 7,917,467 km (0.056 R)
• M17: 11,318,575 km (0.064 R)
• M18: 12,064,320 km (0.113 R)
• M19: 14,365,884 km (0.054 R)
• M20: 17,018,703 km (0.061 R)
• M21: 18,304,945 km (0.097 R)
• M22: 20,063,767 km (0.103 R)
• M23: 23,453,655 km (0.112 R)
• M24: 25,043,880 km (0.078 R)
• M25: 29,812,462 km (0.112 R)
• M26: 36,121,303 km (0.103 R)
• M27: 38,237,665 km (0.114 R)
• M28: 41,498,300 km (0.119 R)
• M29: 44,096,964 km (0.104 R)
• M30: 44,939,649 km (0.102 R)
• M31: 45,649,940 km (0.101 R)
• M32: 47,239,118 km (0.091 R)
• M33: 47,973,494 km (0.067 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 180.8

Radius: 6.8

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 6.95 AU - 9.39 AU

Year: 15078 Days

Day: 16 Hours

Environment

Temp: -231 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 40,429,804 km

• M1: 87,814 km (0.104 R)
• M2: 810,222 km (0.103 R)
• M3: 1,240,615 km (0.102 R)
• M4: 1,469,500 km (0.115 R)
• M5: 1,784,852 km (0.089 R)
• M6: 2,111,574 km (0.026 R)
• M7: 2,333,577 km (0.051 R)
• M8: 3,785,574 km (0.05 R)
• M9: 4,574,404 km (0.119 R)
• M10: 4,860,285 km (0.085 R)
• M11: 5,157,985 km (0.084 R)
• M12: 5,889,369 km (0.092 R)
• M13: 6,367,185 km (0.096 R)
• M14: 7,056,532 km (0.109 R)
• M15: 9,377,991 km (0.103 R)
• M16: 11,113,327 km (0.066 R)
• M17: 12,882,621 km (0.098 R)
• M18: 13,338,296 km (0.104 R)
• M19: 13,804,742 km (0.096 R)
• M20: 15,715,107 km (0.109 R)
• M21: 16,235,408 km (0.086 R)
• M22: 17,173,387 km (0.053 R)
• M23: 20,509,868 km (0.115 R)
• M24: 22,167,263 km (0.044 R)
• M25: 22,739,026 km (0.119 R)
• M26: 24,861,521 km (0.117 R)
• M27: 25,478,761 km (0.105 R)
• M28: 25,746,392 km (0.117 R)
• M29: 27,205,570 km (0.097 R)
• M30: 28,144,895 km (0.108 R)
• M31: 28,622,710 km (0.066 R)
• M32: 29,594,348 km (0.093 R)
• M33: 38,523,995 km (0.083 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 511 - 12,184 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit