🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499

Radius: 13.6

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.6 AU - 0.74 AU

Year: 372 Days

Day: 11.3 Hours

Environment

Temp: -151 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 33,614,421 km

• M1: 169,195 km (0.056 R)
• M2: 653,593 km (0.097 R)
• M3: 1,231,938 km (0.087 R)
• M4: 2,578,918 km (0.106 R)
• M5: 3,087,550 km (0.098 R)
• M6: 3,663,203 km (0.099 R)
• M7: 4,169,741 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 227.2

Radius: 11.6

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.91 AU - 0.95 AU

Year: 608 Days

Day: 11.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 42.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 33,614,421 km

• M1: 144,661 km (0.068 R)
• M2: 569,070 km (0.068 R)
• M3: 1,053,468 km (0.064 R)
• M4: 1,507,647 km (0.037 R)
• M5: 1,906,924 km (0.116 R)
• M6: 3,261,682 km (0.095 R)
• M7: 4,896,338 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.5

Radius: 11.9

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1 AU - 1.02 AU

Year: 688 Days

Day: 7.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 33,614,421 km

• M1: 147,952 km (0.085 R)
• M2: 683,961 km (0.108 R)
• M3: 1,107,323 km (0.107 R)
• M4: 1,489,247 km (0.062 R)
• M5: 2,273,439 km (0.048 R)
• M6: 4,295,852 km (0.115 R)
• M7: 5,378,343 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.9

Radius: 14

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 2.06 AU - 2.48 AU

Year: 2320 Days

Day: 12.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 33,614,421 km

• M1: 174,132 km (0.107 R)
• M2: 636,389 km (0.034 R)
• M3: 1,080,695 km (0.075 R)
• M4: 1,766,003 km (0.108 R)
• M5: 2,204,325 km (0.025 R)
• M6: 2,909,679 km (0.055 R)
• M7: 3,853,940 km (0.026 R)
• M8: 4,337,590 km (0.112 R)
• M9: 5,288,434 km (0.095 R)
• M10: 5,838,506 km (0.114 R)
• M11: 7,514,750 km (0.057 R)
• M12: 8,624,766 km (0.093 R)
• M13: 9,947,959 km (0.047 R)
• M14: 11,169,875 km (0.118 R)
• M15: 13,955,686 km (0.028 R)
• M16: 14,453,847 km (0.1 R)
• M17: 16,869,404 km (0.057 R)
• M18: 17,643,722 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 314

Radius: 13.7

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 2.12 AU - 2.48 AU

Year: 2366 Days

Day: 12.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 33,614,421 km

• M1: 170,691 km (0.047 R)
• M2: 676,930 km (0.094 R)
• M3: 1,219,971 km (0.05 R)
• M4: 1,676,693 km (0.062 R)
• M5: 2,237,984 km (0.066 R)
• M6: 3,053,442 km (0.043 R)
• M7: 3,499,094 km (0.083 R)
• M8: 4,185,898 km (0.097 R)
• M9: 4,879,434 km (0.038 R)
• M10: 6,253,341 km (0.114 R)
• M11: 6,722,180 km (0.093 R)
• M12: 7,456,407 km (0.101 R)
• M13: 9,272,824 km (0.096 R)
• M14: 10,386,281 km (0.061 R)
• M15: 13,195,579 km (0.065 R)
• M16: 13,846,181 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163

Radius: 11.1

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 2.41 AU - 3.27 AU

Year: 3246 Days

Day: 10.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 33,614,421 km

• M1: 138,079 km (0.093 R)
• M2: 674,387 km (0.114 R)
• M3: 1,257,968 km (0.031 R)
• M4: 1,864,139 km (0.091 R)
• M5: 2,325,499 km (0.027 R)
• M6: 3,385,101 km (0.043 R)
• M7: 3,865,609 km (0.069 R)
• M8: 4,278,798 km (0.043 R)
• M9: 4,821,689 km (0.099 R)
• M10: 6,212,052 km (0.118 R)
• M11: 7,250,560 km (0.076 R)
• M12: 8,549,369 km (0.084 R)
• M13: 9,004,745 km (0.1 R)
• M14: 9,540,305 km (0.112 R)
• M15: 10,920,046 km (0.069 R)
• M16: 11,861,166 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 756.6

Radius: 10.6

Gravity: 6.73 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.51 AU - 4.18 AU

Year: 4140 Days

Day: 5.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 33,614,421 km

• M1: 131,945 km (0.06 R)
• M2: 602,281 km (0.066 R)
• M3: 1,072,168 km (0.055 R)
• M4: 1,409,810 km (0.086 R)
• M5: 1,756,728 km (0.083 R)
• M6: 2,370,977 km (0.09 R)
• M7: 3,142,154 km (0.079 R)
• M8: 5,312,071 km (0.114 R)
• M9: 5,700,427 km (0.063 R)
• M10: 7,046,359 km (0.026 R)
• M11: 7,550,504 km (0.064 R)
• M12: 8,078,584 km (0.101 R)
• M13: 8,555,951 km (0.062 R)
• M14: 8,897,483 km (0.099 R)
• M15: 9,567,382 km (0.116 R)
• M16: 10,570,137 km (0.112 R)
• M17: 11,231,509 km (0.077 R)
• M18: 13,130,504 km (0.113 R)
• M19: 13,636,893 km (0.059 R)
• M20: 14,051,279 km (0.089 R)
• M21: 16,135,926 km (0.106 R)
• M22: 16,482,993 km (0.036 R)
• M23: 17,312,363 km (0.116 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 380.6

Radius: 11.5

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 4.04 AU - 6.04 AU

Year: 7674 Days

Day: 13.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 33,614,421 km

• M1: 144,212 km (0.082 R)
• M2: 603,328 km (0.119 R)
• M3: 1,639,443 km (0.11 R)
• M4: 2,721,484 km (0.108 R)
• M5: 3,100,117 km (0.057 R)
• M6: 3,802,927 km (0.114 R)
• M7: 4,557,050 km (0.111 R)
• M8: 5,826,239 km (0.039 R)
• M9: 7,211,365 km (0.047 R)
• M10: 8,886,114 km (0.101 R)
• M11: 9,427,209 km (0.098 R)
• M12: 11,231,210 km (0.095 R)
• M13: 12,989,583 km (0.113 R)
• M14: 14,240,670 km (0.088 R)
• M15: 16,543,281 km (0.089 R)
• M16: 19,015,834 km (0.095 R)
• M17: 21,725,052 km (0.092 R)
• M18: 24,519,989 km (0.089 R)
• M19: 25,585,574 km (0.113 R)
• M20: 30,251,681 km (0.093 R)
• M21: 30,907,518 km (0.106 R)
• M22: 32,735,604 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 243.8

Radius: 6.9

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 5.79 AU - 6.11 AU

Year: 9844 Days

Day: 24.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 33,614,421 km

• M1: 85,869 km (0.111 R)
• M2: 366,365 km (0.108 R)
• M3: 3,000,784 km (0.064 R)
• M4: 3,566,862 km (0.105 R)
• M5: 5,248,940 km (0.099 R)
• M6: 5,817,712 km (0.116 R)
• M7: 9,945,865 km (0.051 R)
• M8: 10,215,141 km (0.091 R)
• M9: 11,390,083 km (0.106 R)
• M10: 11,834,388 km (0.052 R)
• M11: 17,511,179 km (0.096 R)
• M12: 19,049,942 km (0.097 R)
• M13: 19,605,549 km (0.103 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 515 - 14,779 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit