🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.55

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.53 AU - 0.63 AU

Year: 285 Days

Day: 35.8 Hours

Environment

Temp: -130 °C

Axial Tilt: 23.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,437,799 km

• M1: 39,494 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 189

Radius: 14.4

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.72 AU - 0.76 AU

Year: 411 Days

Day: 9.5 Hours

Environment

Temp: -141 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 66,437,799 km

• M1: 179,517 km (0.117 R)
• M2: 787,034 km (0.119 R)
• M3: 1,266,944 km (0.104 R)
• M4: 1,864,289 km (0.089 R)
• M5: 2,343,899 km (0.042 R)
• M6: 3,107,896 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.5

Radius: 10.1

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.69 AU - 1.01 AU

Year: 506 Days

Day: 5.1 Hours

Environment

Temp: -140 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,437,799 km

• M1: 126,261 km (0.103 R)
• M2: 510,877 km (0.066 R)
• M3: 850,165 km (0.074 R)
• M4: 1,294,770 km (0.086 R)
• M5: 1,625,979 km (0.11 R)
• M6: 2,063,852 km (0.109 R)
• M7: 2,448,917 km (0.11 R)
• M8: 2,846,099 km (0.114 R)
• M9: 3,653,778 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.8

Radius: 14.6

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.15 AU - 1.73 AU

Year: 1116 Days

Day: 9.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,437,799 km

• M1: 183,108 km (0.075 R)
• M2: 782,846 km (0.105 R)
• M3: 1,770,341 km (0.075 R)
• M4: 2,530,747 km (0.106 R)
• M5: 3,254,352 km (0.056 R)
• M6: 3,732,168 km (0.034 R)
• M7: 4,224,793 km (0.114 R)
• M8: 4,743,599 km (0.115 R)
• M9: 6,496,886 km (0.096 R)
• M10: 7,076,129 km (0.041 R)
• M11: 7,762,634 km (0.077 R)
• M12: 8,261,842 km (0.04 R)
• M13: 9,187,254 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 819.4

Radius: 10.3

Gravity: 7.72 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.9 AU - 2.04 AU

Year: 1785 Days

Day: 8.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 116.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,437,799 km

• M1: 128,205 km (0.108 R)
• M2: 600,336 km (0.077 R)
• M3: 1,152,352 km (0.099 R)
• M4: 1,854,266 km (0.07 R)
• M5: 2,251,149 km (0.075 R)
• M6: 2,893,821 km (0.119 R)
• M7: 3,218,598 km (0.097 R)
• M8: 3,689,831 km (0.066 R)
• M9: 4,284,483 km (0.081 R)
• M10: 5,362,934 km (0.113 R)
• M11: 5,760,116 km (0.096 R)
• M12: 6,431,362 km (0.12 R)
• M13: 7,491,861 km (0.113 R)
• M14: 8,570,911 km (0.077 R)
• M15: 8,920,371 km (0.079 R)
• M16: 9,445,759 km (0.086 R)
• M17: 11,640,659 km (0.112 R)
• M18: 13,043,289 km (0.076 R)
• M19: 16,132,934 km (0.052 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 532.3

Radius: 6.6

Gravity: 12.22 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 5.32 AU - 7.62 AU

Year: 10626 Days

Day: 16.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 165.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 66,437,799 km

• M1: 82,129 km (0.056 R)
• M2: 344,823 km (0.068 R)
• M3: 563,236 km (0.105 R)
• M4: 815,159 km (0.039 R)
• M5: 1,076,955 km (0.043 R)
• M6: 1,394,551 km (0.116 R)
• M7: 1,788,742 km (0.087 R)
• M8: 3,080,071 km (0.108 R)
• M9: 3,573,744 km (0.113 R)
• M10: 4,145,806 km (0.089 R)
• M11: 4,482,850 km (0.084 R)
• M12: 5,053,566 km (0.115 R)
• M13: 6,672,663 km (0.065 R)
• M14: 7,018,085 km (0.047 R)
• M15: 8,790,221 km (0.119 R)
• M16: 9,019,405 km (0.119 R)
• M17: 10,789,148 km (0.089 R)
• M18: 11,921,903 km (0.071 R)
• M19: 13,492,082 km (0.106 R)
• M20: 14,934,505 km (0.092 R)
• M21: 15,327,050 km (0.096 R)
• M22: 19,022,716 km (0.114 R)
• M23: 20,269,464 km (0.091 R)
• M24: 20,589,454 km (0.106 R)
• M25: 27,621,452 km (0.079 R)
• M26: 30,454,237 km (0.106 R)
• M27: 35,172,554 km (0.107 R)
• M28: 37,164,898 km (0.047 R)
• M29: 39,479,476 km (0.106 R)
• M30: 42,799,951 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 693.5

Radius: 3

Gravity: 77.06 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 7.83 AU - 10.17 AU

Year: 17433 Days

Day: 17.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 66,437,799 km

• M1: 37,250 km (0.107 R)
• M2: 263,143 km (0.057 R)
• M3: 603,179 km (0.074 R)
• M4: 729,738 km (0.106 R)
• M5: 874,100 km (0.12 R)
• M6: 988,543 km (0.049 R)
• M7: 1,139,188 km (0.101 R)
• M8: 1,918,593 km (0.048 R)
• M9: 4,234,517 km (0.068 R)
• M10: 5,462,117 km (0.086 R)
• M11: 5,616,054 km (0.117 R)
• M12: 6,136,205 km (0.075 R)
• M13: 7,457,903 km (0.083 R)
• M14: 8,184,948 km (0.103 R)
• M15: 8,695,077 km (0.066 R)
• M16: 13,077,846 km (0.075 R)
• M17: 13,492,531 km (0.096 R)
• M18: 19,528,506 km (0.092 R)
• M19: 21,372,001 km (0.117 R)
• M20: 23,227,613 km (0.065 R)
• M21: 25,081,878 km (0.074 R)
• M22: 26,590,722 km (0.113 R)
• M23: 27,143,786 km (0.104 R)
• M24: 27,817,724 km (0.032 R)
• M25: 29,551,115 km (0.107 R)
• M26: 30,384,076 km (0.057 R)
• M27: 31,724,622 km (0.033 R)
• M28: 32,096,822 km (0.112 R)
• M29: 34,916,592 km (0.098 R)
• M30: 40,749,562 km (0.109 R)
• M31: 44,203,029 km (0.112 R)
• M32: 47,846,485 km (0.094 R)
• M33: 49,159,207 km (0.062 R)
• M34: 49,657,667 km (0.116 R)
• M35: 51,514,027 km (0.095 R)
• M36: 51,856,456 km (0.079 R)
• M37: 53,942,898 km (0.096 R)
• M38: 59,778,860 km (0.086 R)
• M39: 61,878,167 km (0.114 R)

Asteroid Belt

Center: 9.91 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 10.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 346.4

Radius: 7.1

Gravity: 6.87 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 9.15 AU - 12.49 AU

Year: 22980 Days

Day: 20.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 66,437,799 km

• M1: 200,162 km (0.12 R)
• M2: 721,062 km (0.113 R)
• M3: 2,935,709 km (0.099 R)
• M4: 15,993,209 km (0.115 R)
• M5: 16,224,787 km (0.095 R)
• M6: 19,095,271 km (0.046 R)
• M7: 19,443,534 km (0.09 R)
• M8: 21,155,682 km (0.101 R)
• M9: 24,466,133 km (0.059 R)
• M10: 25,818,199 km (0.114 R)
• M11: 27,771,648 km (0.071 R)
• M12: 28,444,090 km (0.057 R)
• M13: 31,604,944 km (0.112 R)
• M14: 33,710,833 km (0.079 R)
• M15: 36,840,720 km (0.114 R)
• M16: 47,860,996 km (0.08 R)
• M17: 49,315,088 km (0.059 R)
• M18: 55,250,234 km (0.085 R)
• M19: 55,603,135 km (0.093 R)
• M20: 65,313,533 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 323.4

Radius: 7.8

Gravity: 5.32 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 9.3 AU - 12.82 AU

Year: 23749 Days

Day: 23.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 66,437,799 km

• M1: 97,239 km (0.067 R)
• M2: 373,845 km (0.099 R)
• M3: 914,791 km (0.083 R)
• M4: 2,291,241 km (0.083 R)
• M5: 2,797,630 km (0.094 R)
• M6: 5,012,127 km (0.12 R)
• M7: 12,062,376 km (0.098 R)
• M8: 12,318,337 km (0.1 R)
• M9: 16,843,823 km (0.034 R)
• M10: 18,148,166 km (0.044 R)
• M11: 18,654,256 km (0.044 R)
• M12: 25,378,082 km (0.063 R)
• M13: 26,331,320 km (0.083 R)
• M14: 33,809,418 km (0.108 R)
• M15: 36,675,264 km (0.049 R)
• M16: 43,782,659 km (0.109 R)
• M17: 44,084,548 km (0.108 R)
• M18: 47,817,463 km (0.067 R)
• M19: 57,335,927 km (0.061 R)
• M20: 58,242,490 km (0.11 R)
• M21: 59,158,628 km (0.118 R)
• M22: 63,690,246 km (0.069 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 224 - 10,949 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit