🌌 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: 27.5

Radius: 9.4

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.48 AU - 0.62 AU

Year: 287 Days

Day: 6.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 61,586,757 km

• M1: 116,836 km (0.05 R)
• M2: 581,487 km (0.092 R)
• M3: 883,076 km (0.114 R)
• M4: 1,389,465 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837.2

Radius: 13.2

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.58 AU - 0.84 AU

Year: 421 Days

Day: 14.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,586,757 km

• M1: 164,109 km (0.103 R)
• M2: 589,116 km (0.06 R)
• M3: 1,047,185 km (0.116 R)
• M4: 1,487,003 km (0.08 R)
• M5: 2,189,514 km (0.094 R)
• M6: 2,608,987 km (0.113 R)
• M7: 3,230,117 km (0.029 R)
• M8: 3,663,951 km (0.113 R)
• M9: 4,096,139 km (0.109 R)
• M10: 5,159,331 km (0.119 R)
• M11: 5,842,545 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42

Radius: 9.1

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.67 AU - 0.83 AU

Year: 457 Days

Day: 5.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 61,586,757 km

• M1: 113,246 km (0.068 R)
• M2: 573,857 km (0.089 R)
• M3: 885,769 km (0.118 R)
• M4: 1,239,269 km (0.093 R)
• M5: 1,660,088 km (0.034 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.2

Radius: 12.9

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.72 AU - 2 AU

Year: 1783 Days

Day: 6.9 Hours

Environment

Temp: -196 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 61,586,757 km

• M1: 172,935 km (0.091 R)
• M2: 762,351 km (0.084 R)
• M3: 1,280,109 km (0.115 R)
• M4: 1,871,918 km (0.117 R)
• M5: 2,382,496 km (0.099 R)
• M6: 3,141,705 km (0.03 R)
• M7: 3,808,911 km (0.08 R)
• M8: 4,760,653 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.2

Radius: 9

Gravity: 7.99 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 4.18 AU - 5.32 AU

Year: 7277 Days

Day: 6.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 61,586,757 km

• M1: 112,198 km (0.054 R)
• M2: 453,282 km (0.111 R)
• M3: 971,788 km (0.094 R)
• M4: 1,414,298 km (0.071 R)
• M5: 1,852,770 km (0.115 R)
• M6: 2,503,820 km (0.102 R)
• M7: 3,086,503 km (0.118 R)
• M8: 3,877,577 km (0.092 R)
• M9: 4,229,581 km (0.117 R)
• M10: 5,027,236 km (0.095 R)
• M11: 6,668,325 km (0.092 R)
• M12: 7,138,212 km (0.116 R)
• M13: 8,063,624 km (0.092 R)
• M14: 8,597,240 km (0.114 R)
• M15: 10,387,777 km (0.072 R)
• M16: 12,521,641 km (0.085 R)
• M17: 16,701,256 km (0.1 R)
• M18: 18,047,487 km (0.087 R)
• M19: 19,610,336 km (0.115 R)
• M20: 22,841,201 km (0.062 R)
• M21: 24,244,130 km (0.117 R)
• M22: 27,220,978 km (0.047 R)
• M23: 27,862,753 km (0.1 R)
• M24: 36,925,542 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 69.1

Radius: 12.8

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 4.53 AU - 5.41 AU

Year: 7788 Days

Day: 14.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 61,586,757 km

• M1: 159,172 km (0.096 R)
• M2: 574,755 km (0.102 R)
• M3: 3,986,185 km (0.099 R)
• M4: 5,045,936 km (0.069 R)
• M5: 5,842,844 km (0.116 R)
• M6: 9,219,118 km (0.099 R)
• M7: 13,721,865 km (0.086 R)
• M8: 15,272,746 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 660.1

Radius: 6.7

Gravity: 14.7 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 4.84 AU - 6.22 AU

Year: 9141 Days

Day: 20.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 61,586,757 km

• M1: 85,121 km (0.036 R)
• M2: 393,442 km (0.07 R)
• M3: 930,499 km (0.034 R)
• M4: 1,285,046 km (0.027 R)
• M5: 1,741,768 km (0.054 R)
• M6: 2,265,510 km (0.061 R)
• M7: 3,128,540 km (0.078 R)
• M8: 3,548,611 km (0.06 R)
• M9: 4,763,795 km (0.075 R)
• M10: 5,129,861 km (0.102 R)
• M11: 5,481,864 km (0.113 R)
• M12: 5,714,040 km (0.075 R)
• M13: 5,987,655 km (0.067 R)
• M14: 6,635,114 km (0.116 R)
• M15: 7,775,050 km (0.111 R)
• M16: 9,040,050 km (0.105 R)
• M17: 9,988,799 km (0.054 R)
• M18: 13,470,241 km (0.085 R)
• M19: 13,833,166 km (0.108 R)
• M20: 14,140,589 km (0.102 R)
• M21: 15,746,223 km (0.089 R)
• M22: 17,398,532 km (0.1 R)
• M23: 21,862,233 km (0.11 R)
• M24: 23,129,776 km (0.11 R)
• M25: 25,258,703 km (0.081 R)
• M26: 26,276,567 km (0.081 R)
• M27: 28,592,192 km (0.096 R)
• M28: 31,779,973 km (0.097 R)
• M29: 35,082,945 km (0.043 R)
• M30: 36,817,233 km (0.104 R)
• M31: 41,719,854 km (0.062 R)
• M32: 42,749,985 km (0.092 R)
• M33: 43,271,334 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 94.9

Radius: 4.8

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 5.29 AU - 6.21 AU

Year: 9692 Days

Day: 23.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 61,586,757 km

• M1: 59,690 km (0.113 R)
• M2: 236,664 km (0.109 R)
• M3: 433,834 km (0.079 R)
• M4: 632,500 km (0.099 R)
• M5: 1,063,342 km (0.101 R)
• M6: 1,610,421 km (0.094 R)
• M7: 1,829,432 km (0.042 R)
• M8: 2,706,076 km (0.106 R)
• M9: 2,927,930 km (0.066 R)
• M10: 3,708,082 km (0.105 R)
• M11: 4,430,042 km (0.101 R)
• M12: 7,950,678 km (0.047 R)
• M13: 8,514,064 km (0.078 R)
• M14: 9,028,531 km (0.105 R)
• M15: 9,179,325 km (0.118 R)
• M16: 14,370,072 km (0.093 R)
• M17: 15,525,566 km (0.111 R)
• M18: 16,348,055 km (0.052 R)
• M19: 17,841,790 km (0.074 R)
• M20: 21,097,937 km (0.102 R)
• M21: 22,105,928 km (0.108 R)
• M22: 22,795,574 km (0.069 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 268.2

Radius: 7.3

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 4.92 AU - 7.12 AU

Year: 10383 Days

Day: 24.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 155.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 61,586,757 km

• M1: 91,255 km (0.111 R)
• M2: 365,019 km (0.107 R)
• M3: 853,007 km (0.073 R)
• M4: 1,538,016 km (0.083 R)
• M5: 2,121,597 km (0.071 R)
• M6: 2,691,415 km (0.066 R)
• M7: 2,982,234 km (0.043 R)
• M8: 3,790,660 km (0.113 R)
• M9: 4,904,417 km (0.112 R)
• M10: 9,492,284 km (0.08 R)
• M11: 10,495,637 km (0.075 R)
• M12: 11,120,657 km (0.089 R)
• M13: 15,040,121 km (0.061 R)
• M14: 16,914,582 km (0.075 R)
• M15: 19,363,051 km (0.06 R)
• M16: 22,271,682 km (0.096 R)
• M17: 26,235,727 km (0.104 R)
• M18: 26,762,161 km (0.11 R)
• M19: 28,200,246 km (0.049 R)
• M20: 29,031,561 km (0.116 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 821.6

Radius: 3.5

Gravity: 67.07 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 7.09 AU - 7.11 AU

Year: 13298 Days

Day: 20.5 Hours

Environment

Temp: -237 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 61,586,757 km

• M1: 43,683 km (0.108 R)
• M2: 259,702 km (0.088 R)
• M3: 426,952 km (0.067 R)
• M4: 782,546 km (0.05 R)
• M5: 1,016,667 km (0.066 R)
• M6: 1,163,123 km (0.049 R)
• M7: 1,894,807 km (0.061 R)
• M8: 2,592,681 km (0.077 R)
• M9: 2,796,882 km (0.117 R)
• M10: 3,555,642 km (0.12 R)
• M11: 3,722,294 km (0.093 R)
• M12: 4,378,879 km (0.055 R)
• M13: 4,635,739 km (0.097 R)
• M14: 4,835,003 km (0.115 R)
• M15: 6,514,987 km (0.083 R)
• M16: 7,064,610 km (0.117 R)
• M17: 9,102,582 km (0.072 R)
• M18: 9,414,942 km (0.111 R)
• M19: 12,876,936 km (0.096 R)
• M20: 14,081,498 km (0.117 R)
• M21: 16,176,766 km (0.072 R)
• M22: 16,404,603 km (0.093 R)
• M23: 17,179,969 km (0.115 R)
• M24: 17,337,944 km (0.079 R)
• M25: 17,736,922 km (0.068 R)
• M26: 18,719,780 km (0.106 R)
• M27: 19,738,242 km (0.069 R)
• M28: 22,350,969 km (0.041 R)
• M29: 25,696,725 km (0.059 R)
• M30: 27,921,695 km (0.119 R)
• M31: 28,469,672 km (0.077 R)
• M32: 28,580,224 km (0.116 R)
• M33: 28,801,928 km (0.081 R)
• M34: 29,024,979 km (0.08 R)
• M35: 31,909,525 km (0.083 R)
• M36: 34,853,013 km (0.096 R)
• M37: 36,650,880 km (0.036 R)
• M38: 42,126,611 km (0.064 R)
• M39: 44,610,085 km (0.07 R)
• M40: 46,727,194 km (0.07 R)
• M41: 50,187,692 km (0.103 R)
• M42: 50,510,524 km (0.11 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 188 - 18,020 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit