🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.79

Radius: 0.91

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.55 AU - 0.77 AU

Year: 341 Days

Day: 34.9 Hours

Environment

Temp: -129 °C

Axial Tilt: 145.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 48,054,357 km

• M1: 65,075 km (0.036 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444.6

Radius: 14.4

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.05 AU - 1.17 AU

Year: 744 Days

Day: 14.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 48,054,357 km

• M1: 179,069 km (0.11 R)
• M2: 676,182 km (0.12 R)
• M3: 1,250,937 km (0.066 R)
• M4: 1,836,314 km (0.092 R)
• M5: 2,480,183 km (0.09 R)
• M6: 3,447,633 km (0.072 R)
• M7: 3,969,729 km (0.037 R)
• M8: 4,685,405 km (0.117 R)
• M9: 5,175,338 km (0.076 R)
• M10: 5,753,983 km (0.093 R)
• M11: 7,189,225 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.5

Radius: 10.6

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1.62 AU - 2.18 AU

Year: 1665 Days

Day: 11.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 48,054,357 km

• M1: 131,945 km (0.052 R)
• M2: 662,868 km (0.066 R)
• M3: 1,172,698 km (0.109 R)
• M4: 1,621,791 km (0.1 R)
• M5: 1,976,487 km (0.087 R)
• M6: 2,383,393 km (0.081 R)
• M7: 2,942,889 km (0.078 R)
• M8: 3,307,310 km (0.068 R)
• M9: 4,074,896 km (0.11 R)
• M10: 5,584,189 km (0.103 R)
• M11: 7,357,373 km (0.078 R)
• M12: 8,720,957 km (0.095 R)
• M13: 9,729,995 km (0.067 R)
• M14: 10,083,046 km (0.105 R)
• M15: 10,679,194 km (0.055 R)
• M16: 11,089,690 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.7

Radius: 8.3

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 2.49 AU - 3.13 AU

Year: 2995 Days

Day: 13.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 48,054,357 km

• M1: 103,223 km (0.084 R)
• M2: 419,622 km (0.104 R)
• M3: 859,739 km (0.071 R)
• M4: 1,267,992 km (0.115 R)
• M5: 1,578,258 km (0.085 R)
• M6: 2,034,681 km (0.073 R)
• M7: 2,477,939 km (0.102 R)
• M8: 2,782,820 km (0.106 R)
• M9: 3,296,090 km (0.099 R)
• M10: 3,611,592 km (0.11 R)
• M11: 4,162,561 km (0.117 R)
• M12: 5,455,834 km (0.029 R)
• M13: 5,773,431 km (0.116 R)
• M14: 6,419,095 km (0.109 R)
• M15: 8,516,158 km (0.094 R)
• M16: 8,944,457 km (0.034 R)
• M17: 11,501,982 km (0.036 R)
• M18: 13,382,128 km (0.103 R)
• M19: 14,510,694 km (0.1 R)
• M20: 15,313,436 km (0.081 R)
• M21: 15,848,548 km (0.064 R)
• M22: 17,059,244 km (0.083 R)
• M23: 17,581,490 km (0.076 R)
• M24: 17,846,577 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 627.9

Radius: 9.4

Gravity: 7.11 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 2.26 AU - 3.38 AU

Year: 3011 Days

Day: 14.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 48,054,357 km

• M1: 116,836 km (0.044 R)
• M2: 434,133 km (0.076 R)
• M3: 1,128,417 km (0.113 R)
• M4: 1,468,154 km (0.114 R)
• M5: 2,050,538 km (0.107 R)
• M6: 2,460,586 km (0.086 R)
• M7: 2,811,692 km (0.073 R)
• M8: 3,337,977 km (0.059 R)
• M9: 3,948,785 km (0.065 R)
• M10: 4,259,799 km (0.076 R)
• M11: 5,244,004 km (0.026 R)
• M12: 6,206,367 km (0.107 R)
• M13: 8,175,374 km (0.07 R)
• M14: 9,139,981 km (0.084 R)
• M15: 9,761,710 km (0.105 R)
• M16: 10,411,264 km (0.082 R)
• M17: 11,377,068 km (0.075 R)
• M18: 12,010,315 km (0.112 R)
• M19: 13,766,894 km (0.108 R)
• M20: 15,843,162 km (0.087 R)
• M21: 16,366,755 km (0.113 R)
• M22: 17,010,175 km (0.081 R)
• M23: 18,808,791 km (0.106 R)
• M24: 19,514,743 km (0.032 R)
• M25: 19,934,664 km (0.098 R)
• M26: 20,422,054 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.3

Radius: 11

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 4.37 AU - 7.03 AU

Year: 8653 Days

Day: 9.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 48,054,357 km

• M1: 153,936 km (0.109 R)
• M2: 568,023 km (0.11 R)
• M3: 995,275 km (0.119 R)
• M4: 1,680,882 km (0.098 R)
• M5: 2,072,828 km (0.111 R)
• M6: 3,375,975 km (0.09 R)
• M7: 3,905,552 km (0.12 R)
• M8: 4,602,229 km (0.106 R)
• M9: 5,285,742 km (0.109 R)
• M10: 7,507,569 km (0.054 R)
• M11: 8,847,218 km (0.105 R)
• M12: 11,565,262 km (0.085 R)
• M13: 13,759,115 km (0.058 R)
• M14: 14,922,537 km (0.099 R)
• M15: 17,938,430 km (0.072 R)
• M16: 18,954,050 km (0.09 R)
• M17: 23,658,903 km (0.045 R)
• M18: 28,599,523 km (0.119 R)
• M19: 29,286,476 km (0.101 R)
• M20: 31,000,718 km (0.069 R)
• M21: 33,641,868 km (0.091 R)
• M22: 36,889,339 km (0.115 R)
• M23: 41,829,061 km (0.082 R)
• M24: 42,206,945 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 599.3

Radius: 5.1

Gravity: 23.04 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 4.99 AU - 8.17 AU

Year: 10732 Days

Day: 19 Hours

Environment

Temp: -218 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 48,054,357 km

• M1: 63,729 km (0.092 R)
• M2: 320,588 km (0.099 R)
• M3: 527,183 km (0.076 R)
• M4: 997,519 km (0.118 R)
• M5: 1,233,883 km (0.12 R)
• M6: 1,577,809 km (0.073 R)
• M7: 1,949,709 km (0.12 R)
• M8: 2,210,458 km (0.11 R)
• M9: 2,397,156 km (0.11 R)
• M10: 2,976,399 km (0.076 R)
• M11: 3,371,038 km (0.086 R)
• M12: 3,879,073 km (0.084 R)
• M13: 4,643,817 km (0.117 R)
• M14: 5,141,978 km (0.078 R)
• M15: 5,437,434 km (0.061 R)
• M16: 5,919,438 km (0.118 R)
• M17: 7,662,403 km (0.065 R)
• M18: 8,811,464 km (0.093 R)
• M19: 10,020,365 km (0.055 R)
• M20: 10,638,204 km (0.066 R)
• M21: 12,120,719 km (0.108 R)
• M22: 13,923,373 km (0.042 R)
• M23: 14,368,427 km (0.108 R)
• M24: 18,125,577 km (0.088 R)
• M25: 18,732,645 km (0.077 R)
• M26: 20,717,211 km (0.07 R)
• M27: 20,881,768 km (0.06 R)
• M28: 22,925,275 km (0.067 R)
• M29: 23,814,784 km (0.119 R)
• M30: 24,819,484 km (0.086 R)
• M31: 27,504,017 km (0.1 R)
• M32: 30,164,466 km (0.092 R)
• M33: 35,753,143 km (0.099 R)
• M34: 38,416,733 km (0.078 R)
• M35: 43,189,653 km (0.03 R)
• M36: 46,487,987 km (0.067 R)
• M37: 47,195,735 km (0.105 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: 475 - 19,552 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit