🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.4

Radius: 15

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.83 AU - 1.15 AU

Year: 680 Days

Day: 8.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 168.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 43,225,495 km

• M1: 188,194 km (0.107 R)
• M2: 1,059,751 km (0.045 R)
• M3: 2,071,482 km (0.119 R)
• M4: 2,796,732 km (0.113 R)
• M5: 3,726,483 km (0.109 R)
• M6: 4,700,066 km (0.087 R)
• M7: 5,524,201 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 95.2

Radius: 12

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.02 AU - 1.06 AU

Year: 732 Days

Day: 11.6 Hours

Environment

Temp: -176 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 43,225,495 km

• M1: 150,196 km (0.116 R)
• M2: 1,055,563 km (0.075 R)
• M3: 1,527,544 km (0.109 R)
• M4: 1,905,129 km (0.076 R)
• M5: 2,362,599 km (0.099 R)
• M6: 3,416,367 km (0.113 R)
• M7: 3,803,675 km (0.052 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 655

Radius: 14.2

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.81 AU - 1.99 AU

Year: 1808 Days

Day: 11.6 Hours

Environment

Temp: -204 °C

Axial Tilt: 153.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 43,225,495 km

• M1: 176,525 km (0.108 R)
• M2: 969,693 km (0.084 R)
• M3: 2,769,057 km (0.102 R)
• M4: 6,675,057 km (0.072 R)
• M5: 7,366,947 km (0.11 R)
• M6: 8,403,660 km (0.092 R)
• M7: 10,070,181 km (0.09 R)
• M8: 11,383,650 km (0.091 R)
• M9: 12,334,045 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 716.3

Radius: 9.5

Gravity: 7.94 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.76 AU - 2.1 AU

Year: 1851 Days

Day: 9 Hours

Environment

Temp: -203 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 43,225,495 km

• M1: 118,182 km (0.093 R)
• M2: 444,306 km (0.115 R)
• M3: 1,614,909 km (0.114 R)
• M4: 2,615,120 km (0.033 R)
• M5: 2,916,710 km (0.099 R)
• M6: 4,020,742 km (0.108 R)
• M7: 4,345,818 km (0.118 R)
• M8: 5,382,681 km (0.111 R)
• M9: 8,268,424 km (0.06 R)
• M10: 8,701,659 km (0.109 R)
• M11: 9,052,616 km (0.094 R)
• M12: 9,446,208 km (0.12 R)
• M13: 10,162,632 km (0.027 R)
• M14: 10,768,803 km (0.107 R)
• M15: 13,101,931 km (0.079 R)
• M16: 14,475,240 km (0.102 R)
• M17: 14,787,899 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 226.5

Radius: 11

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 2.22 AU - 2.72 AU

Year: 2680 Days

Day: 11 Hours

Environment

Temp: -213 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 43,225,495 km

• M1: 136,882 km (0.118 R)
• M2: 736,770 km (0.104 R)
• M3: 1,251,835 km (0.119 R)
• M4: 1,721,871 km (0.1 R)
• M5: 2,284,509 km (0.12 R)
• M6: 2,729,712 km (0.1 R)
• M7: 3,309,404 km (0.11 R)
• M8: 4,129,799 km (0.113 R)
• M9: 4,539,996 km (0.068 R)
• M10: 5,312,968 km (0.105 R)
• M11: 5,731,244 km (0.043 R)
• M12: 6,990,110 km (0.081 R)
• M13: 7,935,718 km (0.066 R)
• M14: 8,424,754 km (0.118 R)
• M15: 8,842,581 km (0.073 R)
• M16: 9,211,638 km (0.053 R)
• M17: 10,046,843 km (0.103 R)
• M18: 10,619,803 km (0.091 R)
• M19: 10,966,870 km (0.101 R)
• M20: 11,537,885 km (0.101 R)
• M21: 12,053,848 km (0.039 R)
• M22: 12,662,263 km (0.087 R)
• M23: 13,132,000 km (0.08 R)
• M24: 13,491,783 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.6

Radius: 9.1

Gravity: 11.77 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.4 AU - 2.66 AU

Year: 2778 Days

Day: 12.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 43,225,495 km

• M1: 113,246 km (0.092 R)
• M2: 614,548 km (0.062 R)
• M3: 948,899 km (0.113 R)
• M4: 1,817,315 km (0.111 R)
• M5: 2,439,193 km (0.12 R)
• M6: 2,916,859 km (0.101 R)
• M7: 3,689,383 km (0.081 R)
• M8: 4,123,965 km (0.099 R)
• M9: 4,454,875 km (0.043 R)
• M10: 6,414,009 km (0.103 R)
• M11: 8,356,387 km (0.102 R)
• M12: 9,144,469 km (0.117 R)
• M13: 12,567,717 km (0.11 R)
• M14: 14,138,644 km (0.117 R)
• M15: 15,048,648 km (0.077 R)
• M16: 17,436,978 km (0.05 R)
• M17: 19,082,106 km (0.111 R)

Asteroid Belt

Center: 3.99 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.9

Radius: 8.1

Gravity: 8.76 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 5.04 AU - 5.86 AU

Year: 8782 Days

Day: 12.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 43,225,495 km

• M1: 100,979 km (0.094 R)
• M2: 961,017 km (0.092 R)
• M3: 1,217,577 km (0.03 R)
• M4: 1,799,214 km (0.089 R)
• M5: 2,424,533 km (0.034 R)
• M6: 2,747,963 km (0.119 R)
• M7: 3,187,183 km (0.1 R)
• M8: 3,770,315 km (0.059 R)
• M9: 4,646,659 km (0.036 R)
• M10: 5,148,112 km (0.103 R)
• M11: 6,258,726 km (0.108 R)
• M12: 6,686,576 km (0.106 R)
• M13: 11,884,803 km (0.097 R)
• M14: 13,748,044 km (0.084 R)
• M15: 18,546,396 km (0.072 R)
• M16: 21,517,859 km (0.037 R)
• M17: 22,492,489 km (0.097 R)
• M18: 24,529,413 km (0.108 R)
• M19: 26,318,454 km (0.084 R)
• M20: 29,260,596 km (0.096 R)
• M21: 31,270,892 km (0.058 R)
• M22: 35,229,700 km (0.086 R)
• M23: 37,040,433 km (0.114 R)
• M24: 38,085,823 km (0.097 R)
• M25: 38,556,757 km (0.082 R)
• M26: 40,969,621 km (0.105 R)
• M27: 41,340,025 km (0.079 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 537.6

Radius: 4.6

Gravity: 25.41 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 5.19 AU - 6.43 AU

Year: 9667 Days

Day: 15.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 43,225,495 km

• M1: 57,146 km (0.089 R)
• M2: 284,685 km (0.03 R)
• M3: 523,144 km (0.113 R)
• M4: 739,911 km (0.115 R)
• M5: 1,432,400 km (0.089 R)
• M6: 1,972,298 km (0.067 R)
• M7: 2,297,375 km (0.119 R)
• M8: 3,120,312 km (0.088 R)
• M9: 3,912,732 km (0.078 R)
• M10: 4,625,417 km (0.048 R)
• M11: 4,982,058 km (0.12 R)
• M12: 5,167,110 km (0.048 R)
• M13: 5,453,291 km (0.093 R)
• M14: 6,162,086 km (0.1 R)
• M15: 7,006,865 km (0.051 R)
• M16: 8,788,576 km (0.046 R)
• M17: 9,569,327 km (0.117 R)
• M18: 10,147,523 km (0.045 R)
• M19: 11,110,335 km (0.047 R)
• M20: 11,586,953 km (0.083 R)
• M21: 13,932,349 km (0.111 R)
• M22: 14,991,203 km (0.102 R)
• M23: 15,312,539 km (0.097 R)
• M24: 16,304,373 km (0.112 R)
• M25: 16,507,676 km (0.097 R)
• M26: 17,338,094 km (0.107 R)
• M27: 17,620,984 km (0.109 R)
• M28: 19,157,055 km (0.1 R)
• M29: 19,918,956 km (0.119 R)
• M30: 26,474,485 km (0.102 R)
• M31: 26,943,923 km (0.096 R)
• M32: 27,419,046 km (0.101 R)
• M33: 29,777,007 km (0.1 R)
• M34: 31,422,135 km (0.082 R)
• M35: 35,342,946 km (0.095 R)
• M36: 37,774,360 km (0.067 R)
• M37: 41,437,713 km (0.108 R)
• M38: 42,325,277 km (0.112 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 418 - 10,803 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit