🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.9

Radius: 9.1

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.73 AU - 0.85 AU

Year: 468 Days

Day: 10.4 Hours

Environment

Temp: -169 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 77,106,397 km

• M1: 113,246 km (0.101 R)
• M2: 413,339 km (0.105 R)
• M3: 714,779 km (0.083 R)
• M4: 999,613 km (0.084 R)
• M5: 1,933,104 km (0.094 R)
• M6: 2,369,780 km (0.077 R)
• M7: 2,693,510 km (0.09 R)
• M8: 3,488,323 km (0.063 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 984.1

Radius: 14.4

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.72 AU - 0.92 AU

Year: 495 Days

Day: 8.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 77,106,397 km

• M1: 179,517 km (0.087 R)
• M2: 844,779 km (0.107 R)
• M3: 1,324,390 km (0.086 R)
• M4: 1,841,999 km (0.11 R)
• M5: 2,290,194 km (0.117 R)
• M6: 2,768,608 km (0.079 R)
• M7: 3,314,341 km (0.075 R)
• M8: 4,030,316 km (0.073 R)
• M9: 4,688,248 km (0.052 R)
• M10: 5,827,884 km (0.113 R)
• M11: 6,375,412 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.8

Radius: 14.3

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.84 AU - 1.3 AU

Year: 738 Days

Day: 13.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 77,106,397 km

• M1: 177,872 km (0.081 R)
• M2: 898,186 km (0.086 R)
• M3: 1,430,604 km (0.084 R)
• M4: 1,964,220 km (0.084 R)
• M5: 2,498,584 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 677.3

Radius: 12.8

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.05 AU - 1.65 AU

Year: 1046 Days

Day: 6.2 Hours

Environment

Temp: -185 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 77,106,397 km

• M1: 159,172 km (0.029 R)
• M2: 599,289 km (0.054 R)
• M3: 1,042,548 km (0.073 R)
• M4: 1,696,141 km (0.08 R)
• M5: 2,325,648 km (0.107 R)
• M6: 2,782,670 km (0.101 R)
• M7: 3,694,918 km (0.06 R)
• M8: 4,724,899 km (0.116 R)
• M9: 5,210,344 km (0.064 R)
• M10: 6,065,296 km (0.11 R)
• M11: 6,893,919 km (0.116 R)
• M12: 7,595,084 km (0.115 R)
• M13: 8,915,435 km (0.041 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282.5

Radius: 14.1

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.45 AU - 2.13 AU

Year: 1597 Days

Day: 6.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 77,106,397 km

• M1: 175,478 km (0.054 R)
• M2: 689,945 km (0.098 R)
• M3: 1,397,693 km (0.09 R)
• M4: 2,253,393 km (0.107 R)
• M5: 3,011,405 km (0.12 R)
• M6: 3,732,616 km (0.101 R)
• M7: 4,209,235 km (0.117 R)
• M8: 5,057,156 km (0.089 R)
• M9: 6,058,863 km (0.113 R)
• M10: 6,517,381 km (0.116 R)
• M11: 8,112,393 km (0.12 R)
• M12: 9,141,627 km (0.106 R)
• M13: 9,835,611 km (0.118 R)
• M14: 10,286,948 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.9

Radius: 13.2

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.78 AU - 1.92 AU

Year: 1678 Days

Day: 13.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 77,106,397 km

• M1: 167,699 km (0.059 R)
• M2: 660,175 km (0.119 R)
• M3: 1,148,463 km (0.074 R)
• M4: 1,689,858 km (0.117 R)
• M5: 2,424,233 km (0.092 R)
• M6: 3,393,628 km (0.051 R)
• M7: 3,841,524 km (0.108 R)
• M8: 4,274,759 km (0.08 R)
• M9: 5,302,945 km (0.101 R)
• M10: 5,842,246 km (0.094 R)
• M11: 7,737,950 km (0.11 R)
• M12: 9,384,723 km (0.117 R)
• M13: 10,405,878 km (0.065 R)
• M14: 11,893,330 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.7

Radius: 8.4

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 3.44 AU - 5.16 AU

Year: 5946 Days

Day: 10.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 77,106,397 km

• M1: 104,719 km (0.097 R)
• M2: 711,637 km (0.119 R)
• M3: 1,140,235 km (0.105 R)
• M4: 1,499,120 km (0.104 R)
• M5: 1,896,602 km (0.101 R)
• M6: 2,491,253 km (0.078 R)
• M7: 3,204,686 km (0.081 R)
• M8: 3,470,820 km (0.093 R)
• M9: 4,488,684 km (0.03 R)
• M10: 4,754,819 km (0.11 R)
• M11: 6,693,607 km (0.113 R)
• M12: 8,324,074 km (0.068 R)
• M13: 10,014,979 km (0.046 R)
• M14: 11,060,668 km (0.086 R)
• M15: 11,755,401 km (0.082 R)
• M16: 12,134,930 km (0.059 R)
• M17: 12,609,754 km (0.094 R)
• M18: 16,865,664 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 911.8

Radius: 13.3

Gravity: 5.15 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 4.5 AU - 5.34 AU

Year: 7277 Days

Day: 13.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 77,106,397 km

• M1: 165,754 km (0.084 R)
• M2: 1,180,477 km (0.068 R)
• M3: 1,791,734 km (0.067 R)
• M4: 2,406,282 km (0.109 R)
• M5: 4,194,724 km (0.087 R)
• M6: 4,953,634 km (0.046 R)
• M7: 5,382,232 km (0.098 R)
• M8: 5,936,044 km (0.054 R)
• M9: 6,349,682 km (0.09 R)
• M10: 7,044,414 km (0.096 R)
• M11: 9,390,258 km (0.055 R)
• M12: 9,810,928 km (0.036 R)
• M13: 10,440,735 km (0.056 R)
• M14: 13,586,179 km (0.109 R)
• M15: 14,125,330 km (0.117 R)
• M16: 16,628,701 km (0.072 R)
• M17: 18,308,835 km (0.076 R)
• M18: 21,116,936 km (0.11 R)
• M19: 21,759,908 km (0.047 R)
• M20: 28,341,616 km (0.078 R)
• M21: 29,223,196 km (0.107 R)
• M22: 34,236,071 km (0.067 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 659.4

Radius: 4.2

Gravity: 37.38 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 5.04 AU - 8.08 AU

Year: 11204 Days

Day: 18.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 77,106,397 km

• M1: 52,210 km (0.079 R)
• M2: 201,359 km (0.055 R)
• M3: 524,640 km (0.091 R)
• M4: 672,742 km (0.055 R)
• M5: 1,078,601 km (0.104 R)
• M6: 1,283,400 km (0.065 R)
• M7: 1,885,083 km (0.035 R)
• M8: 2,056,821 km (0.102 R)
• M9: 2,635,765 km (0.076 R)
• M10: 3,031,451 km (0.033 R)
• M11: 3,415,319 km (0.088 R)
• M12: 4,107,359 km (0.091 R)
• M13: 5,449,551 km (0.114 R)
• M14: 5,799,161 km (0.094 R)
• M15: 6,937,900 km (0.118 R)
• M16: 7,517,293 km (0.117 R)
• M17: 8,630,750 km (0.058 R)
• M18: 10,474,095 km (0.101 R)
• M19: 12,504,288 km (0.052 R)
• M20: 18,076,509 km (0.035 R)
• M21: 19,328,045 km (0.103 R)
• M22: 20,720,053 km (0.109 R)
• M23: 23,610,134 km (0.104 R)
• M24: 23,793,541 km (0.113 R)
• M25: 25,486,391 km (0.06 R)
• M26: 33,522,340 km (0.054 R)
• M27: 33,870,304 km (0.082 R)
• M28: 42,685,808 km (0.099 R)
• M29: 45,885,407 km (0.071 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 848.1

Radius: 5.2

Gravity: 31.36 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 8.15 AU - 10.07 AU

Year: 18336 Days

Day: 20.1 Hours

Environment

Temp: -240 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 77,106,397 km

• M1: 64,776 km (0.08 R)
• M2: 276,008 km (0.105 R)
• M3: 521,498 km (0.057 R)
• M4: 728,392 km (0.052 R)
• M5: 1,090,269 km (0.069 R)
• M6: 2,083,001 km (0.071 R)
• M7: 2,636,812 km (0.08 R)
• M8: 3,599,624 km (0.081 R)
• M9: 3,872,939 km (0.049 R)
• M10: 4,634,692 km (0.103 R)
• M11: 5,335,707 km (0.1 R)
• M12: 6,538,325 km (0.056 R)
• M13: 7,369,640 km (0.118 R)
• M14: 8,691,786 km (0.089 R)
• M15: 9,073,111 km (0.097 R)
• M16: 14,634,711 km (0.096 R)
• M17: 16,293,153 km (0.086 R)
• M18: 20,737,706 km (0.11 R)
• M19: 22,823,399 km (0.083 R)
• M20: 23,339,811 km (0.095 R)
• M21: 25,373,594 km (0.115 R)
• M22: 26,039,604 km (0.103 R)
• M23: 26,376,947 km (0.117 R)
• M24: 32,049,399 km (0.104 R)
• M25: 32,827,308 km (0.058 R)
• M26: 34,827,282 km (0.029 R)
• M27: 43,957,090 km (0.108 R)
• M28: 48,556,477 km (0.063 R)
• M29: 54,011,414 km (0.102 R)
• M30: 54,743,695 km (0.039 R)
• M31: 55,112,304 km (0.065 R)
• M32: 57,929,831 km (0.053 R)
• M33: 58,890,099 km (0.116 R)
• M34: 61,435,956 km (0.119 R)
• M35: 72,797,914 km (0.12 R)
• M36: 75,727,938 km (0.054 R)
• M37: 76,875,503 km (0.082 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: 470 - 17,549 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit