🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.35

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.53 AU - 0.71 AU

Year: 320 Days

Day: 44.3 Hours

Environment

Temp: -120 °C

Axial Tilt: 29.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 407.4

Radius: 11.9

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.67 AU - 0.69 AU

Year: 368 Days

Day: 9.1 Hours

Environment

Temp: -135 °C

Axial Tilt: 75.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 86,077,612 km

• M1: 147,952 km (0.099 R)
• M2: 567,574 km (0.107 R)
• M3: 967,449 km (0.116 R)
• M4: 1,438,683 km (0.108 R)
• M5: 2,055,176 km (0.072 R)
• M6: 2,870,634 km (0.076 R)
• M7: 3,671,431 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414

Radius: 14.9

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 2.67 AU - 2.75 AU

Year: 2927 Days

Day: 7.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 86,077,612 km

• M1: 185,352 km (0.112 R)
• M2: 691,890 km (0.035 R)
• M3: 1,351,018 km (0.106 R)
• M4: 1,997,431 km (0.068 R)
• M5: 2,572,036 km (0.114 R)
• M6: 3,174,916 km (0.1 R)
• M7: 5,526,295 km (0.085 R)
• M8: 6,275,182 km (0.065 R)
• M9: 7,034,391 km (0.095 R)
• M10: 8,007,226 km (0.113 R)
• M11: 9,034,664 km (0.06 R)
• M12: 11,312,741 km (0.103 R)
• M13: 12,028,716 km (0.077 R)
• M14: 12,564,426 km (0.062 R)
• M15: 13,551,473 km (0.072 R)
• M16: 14,728,808 km (0.088 R)
• M17: 16,022,680 km (0.055 R)
• M18: 17,131,799 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 898.1

Radius: 11.3

Gravity: 7.03 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 3.45 AU - 3.47 AU

Year: 4222 Days

Day: 14.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 120.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 86,077,612 km

• M1: 140,772 km (0.108 R)
• M2: 610,808 km (0.119 R)
• M3: 1,215,782 km (0.116 R)
• M4: 1,843,644 km (0.083 R)
• M5: 2,195,498 km (0.06 R)
• M6: 3,329,749 km (0.055 R)
• M7: 4,368,407 km (0.037 R)
• M8: 4,767,535 km (0.092 R)
• M9: 5,611,117 km (0.098 R)
• M10: 6,843,205 km (0.103 R)
• M11: 8,173,130 km (0.115 R)
• M12: 8,704,203 km (0.049 R)
• M13: 11,855,930 km (0.114 R)
• M14: 12,438,315 km (0.079 R)
• M15: 13,765,846 km (0.103 R)
• M16: 19,357,366 km (0.067 R)
• M17: 20,097,277 km (0.099 R)
• M18: 21,705,155 km (0.079 R)
• M19: 23,171,663 km (0.117 R)
• M20: 23,624,197 km (0.102 R)
• M21: 28,222,685 km (0.077 R)
• M22: 28,825,715 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 529.4

Radius: 10.8

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 3.91 AU - 4.51 AU

Year: 5667 Days

Day: 12.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 86,077,612 km

• M1: 135,685 km (0.069 R)
• M2: 494,421 km (0.111 R)
• M3: 1,089,521 km (0.057 R)
• M4: 1,568,683 km (0.094 R)
• M5: 2,010,745 km (0.087 R)
• M6: 2,468,963 km (0.118 R)
• M7: 3,409,485 km (0.118 R)
• M8: 3,927,991 km (0.099 R)
• M9: 4,573,656 km (0.116 R)
• M10: 5,042,346 km (0.085 R)
• M11: 5,457,330 km (0.104 R)
• M12: 7,281,228 km (0.103 R)
• M13: 8,834,353 km (0.073 R)
• M14: 9,316,058 km (0.055 R)
• M15: 12,434,575 km (0.1 R)
• M16: 16,668,644 km (0.113 R)
• M17: 17,718,521 km (0.081 R)
• M18: 18,485,659 km (0.047 R)
• M19: 19,745,573 km (0.113 R)
• M20: 21,922,670 km (0.064 R)
• M21: 22,732,294 km (0.101 R)
• M22: 24,411,231 km (0.079 R)
• M23: 29,231,574 km (0.07 R)
• M24: 30,032,371 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.8

Radius: 15

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 4.05 AU - 6.37 AU

Year: 7801 Days

Day: 5.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 125.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 86,077,612 km

• M1: 186,549 km (0.053 R)
• M2: 709,991 km (0.074 R)
• M3: 1,518,718 km (0.093 R)
• M4: 2,177,397 km (0.096 R)
• M5: 2,940,346 km (0.078 R)
• M6: 3,631,488 km (0.09 R)
• M7: 4,711,136 km (0.112 R)
• M8: 5,794,075 km (0.096 R)
• M9: 6,999,684 km (0.077 R)
• M10: 8,538,448 km (0.069 R)
• M11: 9,388,014 km (0.115 R)
• M12: 14,016,572 km (0.117 R)
• M13: 15,914,371 km (0.088 R)
• M14: 20,370,892 km (0.064 R)
• M15: 20,921,262 km (0.104 R)
• M16: 22,299,657 km (0.076 R)
• M17: 30,622,385 km (0.078 R)
• M18: 31,345,391 km (0.087 R)
• M19: 32,185,533 km (0.075 R)
• M20: 34,573,564 km (0.085 R)
• M21: 39,822,504 km (0.099 R)
• M22: 41,810,211 km (0.097 R)
• M23: 42,317,348 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 51.2

Radius: 12.3

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 4.06 AU - 6.58 AU

Year: 8050 Days

Day: 14.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 86,077,612 km

• M1: 153,039 km (0.119 R)
• M2: 562,338 km (0.093 R)
• M3: 1,320,650 km (0.093 R)
• M4: 3,129,737 km (0.052 R)
• M5: 3,728,129 km (0.114 R)
• M6: 11,995,804 km (0.098 R)
• M7: 13,860,243 km (0.103 R)
• M8: 14,768,751 km (0.032 R)
• M9: 16,106,754 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 219.1

Radius: 6

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 8.13 AU - 9.63 AU

Year: 17359 Days

Day: 15.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 86,077,612 km

• M1: 74,799 km (0.104 R)
• M2: 398,828 km (0.106 R)
• M3: 831,166 km (0.077 R)
• M4: 1,112,410 km (0.117 R)
• M5: 1,338,303 km (0.115 R)
• M6: 3,032,498 km (0.116 R)
• M7: 5,302,646 km (0.105 R)
• M8: 5,501,162 km (0.115 R)
• M9: 6,272,040 km (0.11 R)
• M10: 8,646,308 km (0.087 R)
• M11: 9,636,197 km (0.084 R)
• M12: 10,082,896 km (0.082 R)
• M13: 11,560,774 km (0.099 R)
• M14: 13,177,328 km (0.107 R)
• M15: 17,426,955 km (0.116 R)
• M16: 19,858,968 km (0.09 R)
• M17: 23,471,008 km (0.074 R)
• M18: 24,643,556 km (0.063 R)
• M19: 26,716,085 km (0.098 R)
• M20: 34,882,783 km (0.091 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 733.8

Radius: 5.5

Gravity: 24.26 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 9.86 AU - 11.72 AU

Year: 23251 Days

Day: 17.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 86,077,612 km

• M1: 75,697 km (0.091 R)
• M2: 261,796 km (0.089 R)
• M3: 1,198,877 km (0.087 R)
• M4: 2,344,498 km (0.05 R)
• M5: 2,966,825 km (0.087 R)
• M6: 3,662,006 km (0.03 R)
• M7: 6,717,692 km (0.093 R)
• M8: 10,002,562 km (0.105 R)
• M9: 10,249,399 km (0.056 R)
• M10: 11,079,667 km (0.105 R)
• M11: 12,585,519 km (0.112 R)
• M12: 15,663,645 km (0.057 R)
• M13: 18,646,327 km (0.064 R)
• M14: 19,304,259 km (0.077 R)
• M15: 23,147,727 km (0.074 R)
• M16: 23,363,148 km (0.046 R)
• M17: 23,579,766 km (0.119 R)
• M18: 28,569,603 km (0.081 R)
• M19: 29,569,515 km (0.077 R)
• M20: 37,527,075 km (0.077 R)
• M21: 40,884,200 km (0.065 R)
• M22: 66,172,973 km (0.058 R)
• M23: 76,879,543 km (0.117 R)
• M24: 77,119,049 km (0.068 R)
• M25: 81,765,259 km (0.119 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 506 - 11,173 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit