🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.7

Radius: 13.7

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.48 AU - 0.8 AU

Year: 360 Days

Day: 5.6 Hours

Environment

Temp: -149 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 20,901,985 km

• M1: 170,392 km (0.032 R)
• M2: 629,807 km (0.062 R)
• M3: 1,133,054 km (0.119 R)
• M4: 1,563,597 km (0.055 R)
• M5: 2,246,362 km (0.064 R)
• M6: 2,794,189 km (0.101 R)
• M7: 4,764,094 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534.6

Radius: 12.3

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 2.37 AU - 2.45 AU

Year: 2630 Days

Day: 11.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 176.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 20,901,985 km

• M1: 153,039 km (0.102 R)
• M2: 586,573 km (0.099 R)
• M3: 1,123,031 km (0.085 R)
• M4: 1,693,448 km (0.088 R)
• M5: 2,189,514 km (0.085 R)
• M6: 2,649,528 km (0.031 R)
• M7: 3,141,406 km (0.082 R)
• M8: 3,621,465 km (0.078 R)
• M9: 4,130,547 km (0.105 R)
• M10: 4,752,126 km (0.053 R)
• M11: 6,105,089 km (0.031 R)
• M12: 6,718,440 km (0.108 R)
• M13: 8,194,523 km (0.117 R)
• M14: 8,578,839 km (0.118 R)
• M15: 10,202,276 km (0.059 R)
• M16: 14,882,146 km (0.095 R)
• M17: 15,797,535 km (0.082 R)
• M18: 16,193,970 km (0.072 R)
• M19: 16,698,862 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.9

Radius: 9.7

Gravity: 8.58 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 2.42 AU - 2.8 AU

Year: 2964 Days

Day: 10.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 20,901,985 km

• M1: 120,725 km (0.097 R)
• M2: 449,841 km (0.104 R)
• M3: 860,936 km (0.088 R)
• M4: 1,720,376 km (0.107 R)
• M5: 2,040,365 km (0.101 R)
• M6: 2,474,349 km (0.098 R)
• M7: 2,786,410 km (0.065 R)
• M8: 3,434,169 km (0.045 R)
• M9: 6,584,999 km (0.063 R)
• M10: 7,897,122 km (0.094 R)
• M11: 13,292,668 km (0.097 R)
• M12: 14,209,105 km (0.059 R)
• M13: 16,113,785 km (0.079 R)
• M14: 16,437,964 km (0.064 R)
• M15: 17,155,285 km (0.103 R)
• M16: 18,182,873 km (0.077 R)
• M17: 20,047,910 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.2

Radius: 10.6

Gravity: 5.31 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 2.18 AU - 3.2 AU

Year: 3101 Days

Day: 8 Hours

Environment

Temp: -200 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 20,901,985 km

• M1: 132,245 km (0.118 R)
• M2: 723,007 km (0.093 R)
• M3: 1,230,592 km (0.086 R)
• M4: 1,599,650 km (0.105 R)
• M5: 1,955,543 km (0.061 R)
• M6: 3,044,765 km (0.057 R)
• M7: 3,617,426 km (0.075 R)
• M8: 4,655,037 km (0.103 R)
• M9: 5,696,986 km (0.113 R)
• M10: 7,495,153 km (0.059 R)
• M11: 7,908,940 km (0.075 R)
• M12: 8,887,011 km (0.115 R)
• M13: 9,868,373 km (0.088 R)
• M14: 11,123,200 km (0.058 R)
• M15: 11,916,966 km (0.12 R)
• M16: 12,837,741 km (0.075 R)
• M17: 13,711,094 km (0.082 R)
• M18: 15,170,122 km (0.055 R)
• M19: 16,837,540 km (0.118 R)
• M20: 18,797,720 km (0.11 R)
• M21: 19,444,133 km (0.116 R)
• M22: 20,349,200 km (0.114 R)
• M23: 20,843,322 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.1

Radius: 12.9

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 2.38 AU - 3.94 AU

Year: 3949 Days

Day: 6.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 20,901,985 km

• M1: 160,818 km (0.109 R)
• M2: 695,780 km (0.108 R)
• M3: 1,462,918 km (0.096 R)
• M4: 2,122,345 km (0.073 R)
• M5: 2,598,814 km (0.103 R)
• M6: 3,187,931 km (0.105 R)
• M7: 3,756,103 km (0.109 R)
• M8: 4,964,854 km (0.117 R)
• M9: 5,427,710 km (0.113 R)
• M10: 6,373,617 km (0.077 R)
• M11: 6,921,594 km (0.1 R)
• M12: 9,406,116 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 826.5

Radius: 9

Gravity: 10.2 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 3.9 AU - 6.42 AU

Year: 8239 Days

Day: 10.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 20,901,985 km

• M1: 114,742 km (0.111 R)
• M2: 459,116 km (0.097 R)
• M3: 1,331,870 km (0.118 R)
• M4: 1,870,273 km (0.104 R)
• M5: 2,786,111 km (0.071 R)
• M6: 3,286,216 km (0.073 R)
• M7: 4,609,858 km (0.113 R)
• M8: 5,603,787 km (0.113 R)
• M9: 6,046,148 km (0.099 R)
• M10: 6,438,543 km (0.112 R)
• M11: 8,052,704 km (0.109 R)
• M12: 8,484,144 km (0.089 R)
• M13: 8,976,471 km (0.077 R)
• M14: 9,969,352 km (0.096 R)
• M15: 10,981,381 km (0.089 R)
• M16: 11,458,449 km (0.11 R)
• M17: 18,166,567 km (0.086 R)
• M18: 18,461,275 km (0.083 R)
• M19: 21,423,163 km (0.053 R)
• M20: 24,777,746 km (0.054 R)
• M21: 27,488,459 km (0.101 R)
• M22: 32,076,327 km (0.087 R)
• M23: 34,046,231 km (0.074 R)
• M24: 35,288,941 km (0.092 R)
• M25: 36,561,720 km (0.086 R)
• M26: 40,187,972 km (0.118 R)
• M27: 42,088,015 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 490.3

Radius: 7.5

Gravity: 8.72 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 6.85 AU - 7.95 AU

Year: 14150 Days

Day: 19.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 20,901,985 km

• M1: 96,191 km (0.111 R)
• M2: 585,825 km (0.116 R)
• M3: 966,851 km (0.115 R)
• M4: 1,409,062 km (0.109 R)
• M5: 1,763,460 km (0.081 R)
• M6: 2,213,600 km (0.081 R)
• M7: 3,468,875 km (0.073 R)
• M8: 5,730,197 km (0.118 R)
• M9: 7,722,691 km (0.045 R)
• M10: 11,173,166 km (0.037 R)
• M11: 13,906,618 km (0.095 R)
• M12: 14,569,486 km (0.085 R)
• M13: 17,056,401 km (0.028 R)
• M14: 17,585,678 km (0.114 R)
• M15: 19,077,468 km (0.054 R)
• M16: 21,865,973 km (0.114 R)
• M17: 22,761,765 km (0.101 R)
• M18: 23,126,933 km (0.106 R)
• M19: 26,389,962 km (0.117 R)
• M20: 31,614,069 km (0.092 R)
• M21: 39,029,636 km (0.071 R)
• M22: 39,421,582 km (0.066 R)
• M23: 40,080,710 km (0.066 R)
• M24: 43,486,904 km (0.101 R)
• M25: 47,525,598 km (0.049 R)
• M26: 49,788,715 km (0.074 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 14.2

Radius: 4

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 7.95 AU - 10.69 AU

Year: 20000 Days

Day: 21.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 20,901,985 km

• M1: 148,551 km (0.098 R)
• M2: 455,675 km (0.119 R)
• M3: 1,131,857 km (0.059 R)
• M4: 2,341,506 km (0.051 R)
• M5: 4,971,436 km (0.077 R)
• M6: 6,577,519 km (0.105 R)
• M7: 8,431,186 km (0.059 R)
• M8: 9,023,893 km (0.096 R)
• M9: 14,849,234 km (0.103 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 527 - 14,165 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit