🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 182.3

Radius: 10.1

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.59 AU - 0.85 AU

Year: 401 Days

Day: 11.2 Hours

Environment

Temp: -139 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 74,136,330 km

• M1: 125,961 km (0.11 R)
• M2: 485,146 km (0.077 R)
• M3: 920,625 km (0.069 R)
• M4: 1,856,958 km (0.118 R)
• M5: 2,198,640 km (0.086 R)
• M6: 3,238,046 km (0.11 R)
• M7: 3,579,578 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40.6

Radius: 12

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.68 AU - 0.83 AU

Year: 426 Days

Day: 9.7 Hours

Environment

Temp: -152 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 74,136,330 km

• M1: 149,897 km (0.084 R)
• M2: 600,336 km (0.028 R)
• M3: 1,005,597 km (0.077 R)
• M4: 1,561,951 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507.8

Radius: 14.2

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.59 AU - 0.93 AU

Year: 435 Days

Day: 11.4 Hours

Environment

Temp: -139 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,136,330 km

• M1: 176,675 km (0.104 R)
• M2: 671,545 km (0.054 R)
• M3: 1,214,884 km (0.075 R)
• M4: 1,814,473 km (0.086 R)
• M5: 2,364,544 km (0.11 R)
• M6: 3,088,747 km (0.099 R)
• M7: 3,698,807 km (0.089 R)
• M8: 4,188,740 km (0.043 R)
• M9: 4,793,714 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 878.7

Radius: 14.5

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.84 AU - 1.06 AU

Year: 607 Days

Day: 11.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,136,330 km

• M1: 180,265 km (0.079 R)
• M2: 841,488 km (0.063 R)
• M3: 1,299,407 km (0.097 R)
• M4: 1,779,766 km (0.048 R)
• M5: 2,340,907 km (0.105 R)
• M6: 3,240,888 km (0.052 R)
• M7: 5,801,854 km (0.115 R)
• M8: 6,819,868 km (0.119 R)
• M9: 7,722,092 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 364.5

Radius: 11.8

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.03 AU - 1.17 AU

Year: 757 Days

Day: 5.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,136,330 km

• M1: 146,756 km (0.118 R)
• M2: 520,002 km (0.028 R)
• M3: 913,295 km (0.103 R)
• M4: 1,529,788 km (0.071 R)
• M5: 1,896,901 km (0.03 R)
• M6: 2,267,006 km (0.109 R)
• M7: 2,643,843 km (0.098 R)
• M8: 3,526,471 km (0.104 R)
• M9: 4,295,254 km (0.038 R)
• M10: 4,766,936 km (0.07 R)
• M11: 5,273,325 km (0.111 R)
• M12: 5,942,626 km (0.093 R)
• M13: 6,491,052 km (0.039 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.9

Radius: 14.6

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.49 AU - 2.07 AU

Year: 1558 Days

Day: 14.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 108.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 74,136,330 km

• M1: 181,612 km (0.118 R)
• M2: 678,277 km (0.086 R)
• M3: 1,184,067 km (0.116 R)
• M4: 1,786,797 km (0.085 R)
• M5: 2,413,762 km (0.108 R)
• M6: 2,920,898 km (0.112 R)
• M7: 4,081,927 km (0.045 R)
• M8: 4,570,514 km (0.115 R)
• M9: 5,077,202 km (0.063 R)
• M10: 6,037,471 km (0.098 R)
• M11: 6,573,929 km (0.099 R)
• M12: 8,143,210 km (0.116 R)
• M13: 9,299,153 km (0.12 R)
• M14: 10,389,572 km (0.054 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 401.7

Radius: 7.9

Gravity: 6.44 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 8.31 AU - 8.59 AU

Year: 16114 Days

Day: 23.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 74,136,330 km

• M1: 98,286 km (0.111 R)
• M2: 600,785 km (0.1 R)
• M3: 917,783 km (0.1 R)
• M4: 1,205,908 km (0.111 R)
• M5: 1,722,320 km (0.071 R)
• M6: 2,540,172 km (0.094 R)
• M7: 3,542,478 km (0.078 R)
• M8: 4,089,707 km (0.057 R)
• M9: 4,474,772 km (0.116 R)
• M10: 5,561,750 km (0.083 R)
• M11: 6,072,477 km (0.111 R)
• M12: 7,020,329 km (0.049 R)
• M13: 10,026,498 km (0.117 R)
• M14: 10,782,865 km (0.113 R)
• M15: 11,810,752 km (0.119 R)
• M16: 12,348,407 km (0.116 R)
• M17: 15,566,855 km (0.095 R)
• M18: 15,851,989 km (0.085 R)
• M19: 17,791,076 km (0.039 R)
• M20: 18,577,363 km (0.117 R)
• M21: 19,633,823 km (0.098 R)
• M22: 20,473,366 km (0.079 R)
• M23: 20,988,432 km (0.089 R)
• M24: 21,600,137 km (0.028 R)
• M25: 22,767,898 km (0.079 R)
• M26: 24,453,418 km (0.061 R)
• M27: 26,120,087 km (0.052 R)
• M28: 27,444,777 km (0.1 R)
• M29: 33,192,476 km (0.111 R)
• M30: 34,866,925 km (0.078 R)
• M31: 36,221,384 km (0.116 R)
• M32: 36,974,759 km (0.103 R)
• M33: 39,429,511 km (0.09 R)
• M34: 46,995,872 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 802.5

Radius: 3.8

Gravity: 55.57 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 8.65 AU - 9.39 AU

Year: 17771 Days

Day: 15.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 74,136,330 km

• M1: 47,273 km (0.087 R)
• M2: 165,904 km (0.115 R)
• M3: 302,337 km (0.062 R)
• M4: 1,084,285 km (0.043 R)
• M5: 1,334,413 km (0.092 R)
• M6: 1,726,509 km (0.064 R)
• M7: 2,108,283 km (0.066 R)
• M8: 2,497,836 km (0.08 R)
• M9: 3,063,316 km (0.061 R)
• M10: 3,561,925 km (0.074 R)
• M11: 3,709,578 km (0.106 R)
• M12: 4,788,927 km (0.043 R)
• M13: 5,419,632 km (0.107 R)
• M14: 5,815,468 km (0.033 R)
• M15: 6,315,573 km (0.087 R)
• M16: 6,980,237 km (0.077 R)
• M17: 9,702,768 km (0.091 R)
• M18: 10,049,686 km (0.052 R)
• M19: 12,173,228 km (0.09 R)
• M20: 14,577,864 km (0.087 R)
• M21: 15,653,772 km (0.054 R)
• M22: 16,453,971 km (0.101 R)
• M23: 18,397,097 km (0.081 R)
• M24: 21,058,443 km (0.051 R)
• M25: 21,347,616 km (0.06 R)
• M26: 22,934,550 km (0.11 R)
• M27: 23,240,628 km (0.1 R)
• M28: 31,178,739 km (0.054 R)
• M29: 35,477,584 km (0.047 R)
• M30: 35,613,568 km (0.095 R)
• M31: 40,007,407 km (0.059 R)
• M32: 40,154,911 km (0.065 R)
• M33: 63,169,047 km (0.105 R)
• M34: 67,248,880 km (0.091 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: 464 - 15,801 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit