🌌 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: 213.3

Radius: 11.2

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.51 AU - 0.77 AU

Year: 347 Days

Day: 5.6 Hours

Environment

Temp: -144 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 56,630,999 km

• M1: 139,425 km (0.05 R)
• M2: 579,542 km (0.042 R)
• M3: 1,042,398 km (0.119 R)
• M4: 1,430,305 km (0.104 R)
• M5: 1,800,560 km (0.099 R)
• M6: 2,332,231 km (0.105 R)
• M7: 2,975,801 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 334.1

Radius: 10.7

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.13 AU - 1.27 AU

Year: 892 Days

Day: 13.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 56,630,999 km

• M1: 133,142 km (0.118 R)
• M2: 692,937 km (0.098 R)
• M3: 1,030,281 km (0.093 R)
• M4: 1,363,734 km (0.051 R)
• M5: 1,853,667 km (0.106 R)
• M6: 2,408,077 km (0.079 R)
• M7: 2,769,356 km (0.116 R)
• M8: 3,266,170 km (0.085 R)
• M9: 4,316,946 km (0.034 R)
• M10: 4,659,824 km (0.11 R)
• M11: 5,004,049 km (0.087 R)
• M12: 6,140,693 km (0.112 R)
• M13: 6,636,760 km (0.09 R)
• M14: 7,419,755 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.2

Radius: 11.6

Gravity: 7.37 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1.23 AU - 1.87 AU

Year: 1309 Days

Day: 8.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 56,630,999 km

• M1: 144,362 km (0.112 R)
• M2: 528,978 km (0.107 R)
• M3: 1,251,685 km (0.102 R)
• M4: 1,821,803 km (0.114 R)
• M5: 2,191,908 km (0.063 R)
• M6: 2,719,240 km (0.082 R)
• M7: 3,314,790 km (0.08 R)
• M8: 3,719,452 km (0.108 R)
• M9: 4,285,680 km (0.085 R)
• M10: 4,747,638 km (0.102 R)
• M11: 5,115,798 km (0.102 R)
• M12: 7,146,739 km (0.115 R)
• M13: 8,110,449 km (0.065 R)
• M14: 9,347,025 km (0.039 R)
• M15: 9,961,124 km (0.109 R)
• M16: 11,965,885 km (0.034 R)
• M17: 13,403,221 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 443.9

Radius: 14.1

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.33 AU - 1.93 AU

Year: 1411 Days

Day: 10.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 154.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 56,630,999 km

• M1: 175,478 km (0.076 R)
• M2: 650,003 km (0.096 R)
• M3: 1,678,488 km (0.099 R)
• M4: 2,800,771 km (0.056 R)
• M5: 3,717,657 km (0.073 R)
• M6: 4,826,626 km (0.068 R)
• M7: 5,779,265 km (0.1 R)
• M8: 8,794,859 km (0.117 R)
• M9: 10,309,238 km (0.102 R)
• M10: 10,818,619 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631

Radius: 14.5

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.79 AU - 2.19 AU

Year: 1904 Days

Day: 13.6 Hours

Environment

Temp: -208 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 56,630,999 km

• M1: 190,438 km (0.081 R)
• M2: 834,457 km (0.071 R)
• M3: 1,655,600 km (0.061 R)
• M4: 2,192,058 km (0.119 R)
• M5: 2,830,841 km (0.1 R)
• M6: 3,361,464 km (0.037 R)
• M7: 4,273,862 km (0.041 R)
• M8: 4,892,898 km (0.088 R)
• M9: 5,503,107 km (0.093 R)
• M10: 6,090,578 km (0.092 R)
• M11: 6,564,803 km (0.092 R)
• M12: 7,787,916 km (0.062 R)
• M13: 10,019,617 km (0.081 R)
• M14: 10,541,115 km (0.065 R)
• M15: 11,044,063 km (0.117 R)
• M16: 11,866,851 km (0.047 R)
• M17: 12,570,260 km (0.091 R)
• M18: 13,259,906 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.4

Radius: 8.8

Gravity: 10.12 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 4.37 AU - 4.55 AU

Year: 6388 Days

Day: 6.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 56,630,999 km

• M1: 109,506 km (0.067 R)
• M2: 1,013,526 km (0.106 R)
• M3: 1,971,999 km (0.118 R)
• M4: 2,411,518 km (0.05 R)
• M5: 4,883,922 km (0.111 R)
• M6: 5,566,387 km (0.111 R)
• M7: 6,831,387 km (0.034 R)
• M8: 7,723,289 km (0.114 R)
• M9: 10,864,695 km (0.072 R)
• M10: 11,510,808 km (0.094 R)
• M11: 15,376,866 km (0.119 R)
• M12: 17,974,035 km (0.096 R)
• M13: 19,233,050 km (0.062 R)
• M14: 19,520,577 km (0.081 R)
• M15: 19,957,403 km (0.114 R)
• M16: 22,160,830 km (0.088 R)
• M17: 24,437,411 km (0.104 R)
• M18: 24,944,847 km (0.095 R)
• M19: 27,862,005 km (0.114 R)
• M20: 30,121,382 km (0.113 R)
• M21: 34,048,924 km (0.083 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 246.9

Radius: 6.5

Gravity: 5.84 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 4.8 AU - 7.44 AU

Year: 10269 Days

Day: 15.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 56,630,999 km

• M1: 80,932 km (0.074 R)
• M2: 1,016,069 km (0.06 R)
• M3: 1,710,502 km (0.103 R)
• M4: 2,574,579 km (0.041 R)
• M5: 3,654,377 km (0.106 R)
• M6: 5,875,606 km (0.059 R)
• M7: 6,164,180 km (0.1 R)
• M8: 6,462,179 km (0.093 R)
• M9: 7,525,670 km (0.108 R)
• M10: 8,060,034 km (0.086 R)
• M11: 9,246,944 km (0.092 R)
• M12: 9,770,536 km (0.097 R)
• M13: 10,924,684 km (0.087 R)
• M14: 16,837,390 km (0.114 R)
• M15: 19,602,557 km (0.031 R)
• M16: 21,807,779 km (0.09 R)
• M17: 24,665,847 km (0.07 R)
• M18: 26,617,052 km (0.066 R)
• M19: 27,853,927 km (0.095 R)
• M20: 29,313,703 km (0.12 R)
• M21: 29,874,096 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 415.8

Radius: 5.2

Gravity: 15.38 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 7.4 AU - 9.38 AU

Year: 16483 Days

Day: 17.8 Hours

Environment

Temp: -242 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 56,630,999 km

• M1: 64,626 km (0.115 R)
• M2: 275,260 km (0.093 R)
• M3: 452,683 km (0.055 R)
• M4: 959,222 km (0.079 R)
• M5: 1,190,500 km (0.072 R)
• M6: 2,172,311 km (0.117 R)
• M7: 2,407,778 km (0.088 R)
• M8: 2,976,698 km (0.082 R)
• M9: 4,225,691 km (0.082 R)
• M10: 6,126,930 km (0.073 R)
• M11: 6,678,947 km (0.071 R)
• M12: 8,203,349 km (0.112 R)
• M13: 10,762,520 km (0.095 R)
• M14: 11,273,546 km (0.053 R)
• M15: 11,741,338 km (0.058 R)
• M16: 12,283,032 km (0.049 R)
• M17: 17,154,089 km (0.106 R)
• M18: 19,550,198 km (0.106 R)
• M19: 32,996,653 km (0.106 R)
• M20: 33,352,845 km (0.113 R)
• M21: 33,711,581 km (0.078 R)
• M22: 33,952,284 km (0.118 R)
• M23: 35,049,285 km (0.074 R)
• M24: 36,421,846 km (0.107 R)
• M25: 38,481,808 km (0.092 R)
• M26: 39,673,954 km (0.112 R)
• M27: 42,271,272 km (0.109 R)
• M28: 52,493,743 km (0.048 R)
• M29: 52,817,024 km (0.086 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 242 - 11,530 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit