🌌 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: 249.1

Radius: 11.9

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.52 AU - 0.76 AU

Year: 341 Days

Day: 6.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 50,644,509 km

• M1: 148,102 km (0.104 R)
• M2: 731,833 km (0.06 R)
• M3: 1,200,523 km (0.051 R)
• M4: 1,718,132 km (0.051 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294.3

Radius: 14.3

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.63 AU - 0.73 AU

Year: 374 Days

Day: 11.9 Hours

Environment

Temp: -147 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 50,644,509 km

• M1: 178,021 km (0.079 R)
• M2: 655,388 km (0.105 R)
• M3: 1,225,057 km (0.028 R)
• M4: 1,706,912 km (0.065 R)
• M5: 2,240,378 km (0.106 R)
• M6: 2,876,169 km (0.09 R)
• M7: 3,739,648 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 213.2

Radius: 8

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.87 AU - 1.13 AU

Year: 667 Days

Day: 7.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 90.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 50,644,509 km

• M1: 99,632 km (0.112 R)
• M2: 422,614 km (0.092 R)
• M3: 758,760 km (0.117 R)
• M4: 1,025,045 km (0.049 R)
• M5: 1,441,824 km (0.087 R)
• M6: 1,726,060 km (0.109 R)
• M7: 2,064,301 km (0.071 R)
• M8: 2,654,764 km (0.074 R)
• M9: 2,979,391 km (0.035 R)
• M10: 3,251,211 km (0.051 R)
• M11: 3,696,414 km (0.049 R)
• M12: 3,946,691 km (0.089 R)
• M13: 4,708,593 km (0.091 R)
• M14: 5,124,625 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 326.8

Radius: 14.2

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.15 AU - 1.29 AU

Year: 899 Days

Day: 6.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 50,644,509 km

• M1: 176,525 km (0.09 R)
• M2: 622,028 km (0.107 R)
• M3: 1,110,465 km (0.049 R)
• M4: 2,073,127 km (0.102 R)
• M5: 2,586,996 km (0.098 R)
• M6: 3,247,471 km (0.079 R)
• M7: 4,698,720 km (0.096 R)
• M8: 5,401,830 km (0.077 R)
• M9: 5,965,065 km (0.111 R)
• M10: 7,448,328 km (0.048 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 127.5

Radius: 8.1

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 1.15 AU - 1.33 AU

Year: 921 Days

Day: 13.5 Hours

Environment

Temp: -186 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 50,644,509 km

• M1: 100,679 km (0.069 R)
• M2: 376,089 km (0.072 R)
• M3: 814,860 km (0.073 R)
• M4: 1,120,937 km (0.113 R)
• M5: 3,279,634 km (0.085 R)

Asteroid Belt

Center: 1.64 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 2.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 434.7

Radius: 10.6

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 1.56 AU - 2.52 AU

Year: 1943 Days

Day: 6.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 50,644,509 km

• M1: 131,796 km (0.108 R)
• M2: 483,201 km (0.104 R)
• M3: 918,980 km (0.1 R)
• M4: 1,250,638 km (0.06 R)
• M5: 1,636,002 km (0.085 R)
• M6: 2,089,733 km (0.112 R)
• M7: 2,857,768 km (0.118 R)
• M8: 3,393,628 km (0.086 R)
• M9: 4,174,828 km (0.078 R)
• M10: 4,866,568 km (0.098 R)
• M11: 7,086,750 km (0.105 R)
• M12: 8,806,827 km (0.103 R)
• M13: 10,963,878 km (0.04 R)
• M14: 11,903,203 km (0.112 R)
• M15: 12,240,547 km (0.109 R)
• M16: 12,856,142 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 756.6

Radius: 15

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.99 AU - 2.47 AU

Year: 2221 Days

Day: 5.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 50,644,509 km

• M1: 186,549 km (0.074 R)
• M2: 748,588 km (0.083 R)
• M3: 1,707,959 km (0.056 R)
• M4: 2,909,529 km (0.032 R)
• M5: 4,012,963 km (0.06 R)
• M6: 4,683,161 km (0.068 R)
• M7: 5,356,651 km (0.082 R)
• M8: 6,017,425 km (0.098 R)
• M9: 6,514,838 km (0.088 R)
• M10: 7,239,939 km (0.083 R)
• M11: 7,742,887 km (0.067 R)
• M12: 9,154,343 km (0.111 R)
• M13: 10,543,658 km (0.078 R)
• M14: 11,036,733 km (0.058 R)
• M15: 12,609,455 km (0.052 R)
• M16: 14,511,891 km (0.062 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 532.4

Radius: 13.7

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.54 AU - 2.7 AU

Year: 2828 Days

Day: 14.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 50,644,509 km

• M1: 170,392 km (0.085 R)
• M2: 624,571 km (0.071 R)
• M3: 1,303,895 km (0.114 R)
• M4: 1,966,314 km (0.099 R)
• M5: 2,411,368 km (0.064 R)
• M6: 3,233,259 km (0.101 R)
• M7: 3,879,970 km (0.085 R)
• M8: 5,126,420 km (0.049 R)
• M9: 6,113,317 km (0.108 R)
• M10: 6,735,943 km (0.066 R)
• M11: 7,581,171 km (0.09 R)
• M12: 9,877,199 km (0.061 R)
• M13: 12,647,303 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 35.7

Radius: 7.7

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 7.12 AU - 10.06 AU

Year: 16789 Days

Day: 24.4 Hours

Environment

Temp: -237 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,644,509 km

• M1: 102,325 km (0.107 R)
• M2: 431,141 km (0.085 R)
• M3: 1,672,205 km (0.11 R)
• M4: 2,391,771 km (0.079 R)
• M5: 2,847,446 km (0.081 R)
• M6: 3,618,025 km (0.085 R)
• M7: 3,954,021 km (0.096 R)
• M8: 7,606,005 km (0.075 R)
• M9: 10,430,263 km (0.092 R)
• M10: 11,464,433 km (0.106 R)
• M11: 15,678,455 km (0.11 R)
• M12: 19,145,087 km (0.113 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 281.7

Radius: 4.6

Gravity: 13.31 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 6.56 AU - 10.72 AU

Year: 16936 Days

Day: 17.6 Hours

Environment

Temp: -240 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 50,644,509 km

• M1: 57,595 km (0.061 R)
• M2: 420,819 km (0.075 R)
• M3: 765,343 km (0.113 R)
• M4: 2,282,415 km (0.083 R)
• M5: 3,012,004 km (0.118 R)
• M6: 8,291,312 km (0.076 R)
• M7: 12,467,038 km (0.09 R)
• M8: 13,380,632 km (0.12 R)
• M9: 14,469,106 km (0.109 R)
• M10: 19,655,814 km (0.114 R)
• M11: 21,398,779 km (0.11 R)
• M12: 22,972,548 km (0.108 R)
• M13: 26,348,374 km (0.086 R)
• M14: 28,051,546 km (0.082 R)
• M15: 28,773,804 km (0.097 R)
• M16: 42,748,340 km (0.11 R)
• M17: 43,156,143 km (0.089 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 244 - 12,421 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit