🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43.5

Radius: 10.8

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.52 AU - 0.58 AU

Year: 282 Days

Day: 14.3 Hours

Environment

Temp: -145 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 30,989,016 km

• M1: 134,339 km (0.097 R)
• M2: 484,099 km (0.118 R)
• M3: 827,127 km (0.1 R)
• M4: 1,222,514 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 263.1

Radius: 8.3

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.82 AU - 0.86 AU

Year: 531 Days

Day: 12.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 30,989,016 km

• M1: 103,223 km (0.119 R)
• M2: 395,836 km (0.101 R)
• M3: 854,054 km (0.065 R)
• M4: 1,213,837 km (0.064 R)
• M5: 1,533,977 km (0.074 R)
• M6: 1,971,251 km (0.116 R)
• M7: 2,498,584 km (0.046 R)
• M8: 2,930,473 km (0.077 R)
• M9: 3,629,992 km (0.082 R)
• M10: 4,572,309 km (0.119 R)
• M11: 4,852,955 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.4

Radius: 9.3

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.75 AU - 1.05 AU

Year: 589 Days

Day: 13.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,989,016 km

• M1: 115,639 km (0.094 R)
• M2: 446,400 km (0.083 R)
• M3: 784,192 km (0.054 R)
• M4: 1,157,738 km (0.059 R)
• M5: 2,212,553 km (0.089 R)
• M6: 2,588,941 km (0.072 R)
• M7: 2,931,370 km (0.09 R)
• M8: 3,657,668 km (0.078 R)
• M9: 4,036,450 km (0.053 R)
• M10: 4,369,455 km (0.041 R)
• M11: 5,316,260 km (0.082 R)
• M12: 5,820,853 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.7

Radius: 8.3

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.96 AU - 1 AU

Year: 670 Days

Day: 8.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 30,989,016 km

• M1: 103,223 km (0.119 R)
• M2: 735,722 km (0.105 R)
• M3: 1,112,859 km (0.096 R)
• M4: 1,659,190 km (0.045 R)
• M5: 2,031,240 km (0.106 R)
• M6: 2,987,469 km (0.097 R)
• M7: 3,504,779 km (0.083 R)
• M8: 4,258,154 km (0.091 R)
• M9: 4,898,582 km (0.086 R)
• M10: 5,178,480 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.6

Radius: 15

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.91 AU - 1.21 AU

Year: 753 Days

Day: 10.3 Hours

Environment

Temp: -186 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 30,989,016 km

• M1: 186,549 km (0.049 R)
• M2: 1,985,463 km (0.107 R)
• M3: 2,794,039 km (0.077 R)
• M4: 3,269,910 km (0.103 R)
• M5: 3,856,633 km (0.098 R)
• M6: 4,803,139 km (0.092 R)
• M7: 5,880,991 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497.8

Radius: 8.5

Gravity: 6.89 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.19 AU - 1.67 AU

Year: 1180 Days

Day: 8.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 30,989,016 km

• M1: 120,875 km (0.052 R)
• M2: 435,779 km (0.106 R)
• M3: 767,587 km (0.046 R)
• M4: 1,205,759 km (0.119 R)
• M5: 1,483,263 km (0.109 R)
• M6: 2,435,453 km (0.12 R)
• M7: 3,206,630 km (0.054 R)
• M8: 3,656,471 km (0.09 R)
• M9: 4,487,936 km (0.096 R)
• M10: 7,124,150 km (0.066 R)
• M11: 7,439,502 km (0.108 R)
• M12: 8,020,241 km (0.117 R)
• M13: 9,444,413 km (0.052 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.7

Radius: 14.2

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.32 AU - 1.98 AU

Year: 1463 Days

Day: 6.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 30,989,016 km

• M1: 176,525 km (0.108 R)
• M2: 733,329 km (0.113 R)
• M3: 1,187,807 km (0.076 R)
• M4: 1,729,351 km (0.042 R)
• M5: 2,930,323 km (0.069 R)
• M6: 3,597,081 km (0.101 R)
• M7: 4,277,153 km (0.087 R)
• M8: 5,158,434 km (0.098 R)
• M9: 5,663,626 km (0.059 R)
• M10: 6,291,189 km (0.082 R)
• M11: 7,406,890 km (0.075 R)
• M12: 8,650,796 km (0.101 R)
• M13: 9,815,415 km (0.113 R)
• M14: 10,658,998 km (0.114 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 895.6

Radius: 10.2

Gravity: 8.61 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 1.34 AU - 2.1 AU

Year: 1557 Days

Day: 8.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 30,989,016 km

• M1: 126,859 km (0.083 R)
• M2: 728,542 km (0.101 R)
• M3: 1,525,300 km (0.108 R)
• M4: 1,896,602 km (0.047 R)
• M5: 2,482,427 km (0.067 R)
• M6: 3,694,619 km (0.05 R)
• M7: 4,392,941 km (0.113 R)
• M8: 4,983,105 km (0.077 R)
• M9: 5,442,819 km (0.026 R)
• M10: 6,173,306 km (0.046 R)
• M11: 6,652,468 km (0.075 R)
• M12: 9,862,838 km (0.032 R)
• M13: 10,731,553 km (0.097 R)
• M14: 12,304,874 km (0.11 R)
• M15: 12,861,976 km (0.088 R)
• M16: 13,477,422 km (0.097 R)
• M17: 14,415,550 km (0.025 R)
• M18: 14,945,126 km (0.09 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 929.9

Radius: 14.2

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 4.02 AU - 4.06 AU

Year: 5605 Days

Day: 9.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 30,989,016 km

• M1: 176,675 km (0.118 R)
• M2: 660,624 km (0.118 R)
• M3: 1,951,355 km (0.1 R)
• M4: 2,491,702 km (0.057 R)
• M5: 3,071,244 km (0.077 R)
• M6: 3,976,012 km (0.111 R)
• M7: 10,640,149 km (0.118 R)
• M8: 11,465,929 km (0.111 R)
• M9: 12,386,404 km (0.106 R)
• M10: 15,263,022 km (0.101 R)
• M11: 16,124,855 km (0.086 R)
• M12: 19,541,371 km (0.108 R)
• M13: 20,484,137 km (0.093 R)
• M14: 21,229,733 km (0.051 R)
• M15: 23,900,953 km (0.084 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 112.3

Radius: 5.9

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 6.35 AU - 7.69 AU

Year: 12839 Days

Day: 20.8 Hours

Environment

Temp: -234 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,989,016 km

• M1: 73,303 km (0.095 R)
• M2: 430,243 km (0.099 R)
• M3: 675,135 km (0.037 R)
• M4: 867,069 km (0.083 R)
• M5: 1,703,621 km (0.12 R)
• M6: 2,142,391 km (0.089 R)
• M7: 3,492,362 km (0.092 R)
• M8: 4,174,379 km (0.068 R)
• M9: 6,987,567 km (0.072 R)
• M10: 19,396,411 km (0.12 R)
• M11: 26,747,501 km (0.092 R)
• M12: 29,349,457 km (0.072 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 172 - 19,049 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit