🌌 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: 127.9

Radius: 12.5

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.48 AU - 0.62 AU

Year: 282 Days

Day: 14 Hours

Environment

Temp: -144 °C

Axial Tilt: 41.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 33,014,841 km

• M1: 155,582 km (0.058 R)
• M2: 730,935 km (0.109 R)
• M3: 1,342,342 km (0.06 R)
• M4: 1,799,662 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 804.9

Radius: 9

Gravity: 9.94 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.5 AU - 0.66 AU

Year: 305 Days

Day: 8.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,014,841 km

• M1: 111,899 km (0.118 R)
• M2: 434,731 km (0.112 R)
• M3: 798,105 km (0.119 R)
• M4: 1,217,876 km (0.116 R)
• M5: 1,602,343 km (0.105 R)
• M6: 1,920,238 km (0.073 R)
• M7: 2,229,756 km (0.097 R)
• M8: 2,554,384 km (0.043 R)
• M9: 2,860,610 km (0.106 R)
• M10: 3,377,322 km (0.108 R)
• M11: 3,967,635 km (0.118 R)
• M12: 4,680,618 km (0.058 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 404.2

Radius: 13.4

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.52 AU - 0.76 AU

Year: 353 Days

Day: 6.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 33,014,841 km

• M1: 166,652 km (0.105 R)
• M2: 585,227 km (0.087 R)
• M3: 1,283,699 km (0.096 R)
• M4: 1,936,993 km (0.119 R)
• M5: 2,564,257 km (0.108 R)
• M6: 3,091,590 km (0.075 R)
• M7: 4,304,828 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.2

Radius: 8.9

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.84 AU - 0.94 AU

Year: 580 Days

Day: 14.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 33,014,841 km

• M1: 129,253 km (0.119 R)
• M2: 427,551 km (0.103 R)
• M3: 746,194 km (0.115 R)
• M4: 1,088,923 km (0.093 R)
• M5: 1,473,090 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322.3

Radius: 9.8

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 2.21 AU - 2.51 AU

Year: 2503 Days

Day: 5.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,014,841 km

• M1: 121,922 km (0.106 R)
• M2: 444,156 km (0.083 R)
• M3: 1,433,297 km (0.108 R)
• M4: 1,828,236 km (0.072 R)
• M5: 2,433,957 km (0.031 R)
• M6: 3,277,540 km (0.087 R)
• M7: 3,706,586 km (0.095 R)
• M8: 4,617,637 km (0.095 R)
• M9: 5,740,519 km (0.067 R)
• M10: 6,877,613 km (0.05 R)
• M11: 8,578,391 km (0.095 R)
• M12: 11,150,277 km (0.105 R)
• M13: 12,591,952 km (0.078 R)
• M14: 14,412,109 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.5

Radius: 9.9

Gravity: 7.91 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 4.31 AU - 6.07 AU

Year: 8161 Days

Day: 14 Hours

Environment

Temp: -225 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 33,014,841 km

• M1: 142,268 km (0.11 R)
• M2: 537,655 km (0.069 R)
• M3: 979,417 km (0.112 R)
• M4: 1,419,235 km (0.09 R)
• M5: 1,729,651 km (0.042 R)
• M6: 2,326,845 km (0.119 R)
• M7: 3,277,839 km (0.086 R)
• M8: 3,753,859 km (0.084 R)
• M9: 5,928,115 km (0.064 R)
• M10: 6,673,711 km (0.061 R)
• M11: 9,614,655 km (0.091 R)
• M12: 11,906,195 km (0.112 R)
• M13: 15,826,258 km (0.065 R)
• M14: 19,984,780 km (0.048 R)
• M15: 21,818,401 km (0.058 R)
• M16: 22,148,264 km (0.102 R)
• M17: 24,110,689 km (0.094 R)
• M18: 25,909,005 km (0.117 R)
• M19: 26,841,000 km (0.115 R)
• M20: 28,969,628 km (0.062 R)
• M21: 31,208,509 km (0.098 R)
• M22: 32,050,596 km (0.076 R)
• M23: 33,779,947 km (0.119 R)
• M24: 37,896,881 km (0.07 R)
• M25: 38,734,479 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 634.9

Radius: 7.4

Gravity: 11.59 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 5.11 AU - 8.29 AU

Year: 11971 Days

Day: 23.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 33,014,841 km

• M1: 92,451 km (0.113 R)
• M2: 607,517 km (0.096 R)
• M3: 1,442,273 km (0.112 R)
• M4: 1,689,409 km (0.06 R)
• M5: 2,289,595 km (0.104 R)
• M6: 3,383,006 km (0.091 R)
• M7: 4,421,515 km (0.067 R)
• M8: 5,764,604 km (0.09 R)
• M9: 7,790,309 km (0.11 R)
• M10: 8,236,859 km (0.101 R)
• M11: 8,747,735 km (0.089 R)
• M12: 8,986,793 km (0.104 R)
• M13: 9,578,602 km (0.089 R)
• M14: 11,283,419 km (0.09 R)
• M15: 18,365,831 km (0.118 R)
• M16: 18,996,686 km (0.12 R)
• M17: 19,723,731 km (0.077 R)
• M18: 20,891,343 km (0.04 R)
• M19: 22,999,027 km (0.107 R)
• M20: 32,966,584 km (0.081 R)
• M21: 34,727,351 km (0.099 R)
• M22: 38,180,219 km (0.081 R)
• M23: 42,398,879 km (0.048 R)
• M24: 42,809,525 km (0.049 R)
• M25: 45,615,981 km (0.093 R)
• M26: 46,917,931 km (0.032 R)
• M27: 48,244,565 km (0.115 R)
• M28: 51,126,867 km (0.097 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 133.5

Radius: 6.6

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 5.7 AU - 8.42 AU

Year: 12948 Days

Day: 22.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,014,841 km

• M1: 82,428 km (0.092 R)
• M2: 322,533 km (0.064 R)
• M3: 1,593,068 km (0.089 R)
• M4: 2,205,671 km (0.089 R)
• M5: 3,123,304 km (0.059 R)
• M6: 5,267,790 km (0.071 R)
• M7: 5,959,082 km (0.086 R)
• M8: 20,378,372 km (0.118 R)
• M9: 27,698,195 km (0.118 R)
• M10: 28,407,140 km (0.089 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 512 - 12,878 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit