🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.1

Radius: 9.5

Gravity: 8.84 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.64 AU - 1.04 AU

Year: 513 Days

Day: 11.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,321,972 km

• M1: 118,182 km (0.116 R)
• M2: 490,980 km (0.111 R)
• M3: 833,709 km (0.119 R)
• M4: 1,314,516 km (0.067 R)
• M5: 2,105,141 km (0.084 R)
• M6: 2,518,031 km (0.114 R)
• M7: 2,984,478 km (0.118 R)
• M8: 4,177,521 km (0.111 R)
• M9: 4,474,472 km (0.079 R)
• M10: 5,011,828 km (0.056 R)
• M11: 5,556,364 km (0.072 R)
• M12: 6,485,816 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 235.5

Radius: 9.5

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.36 AU - 1.84 AU

Year: 1350 Days

Day: 6 Hours

Environment

Temp: -199 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 60,321,972 km

• M1: 118,332 km (0.099 R)
• M2: 437,125 km (0.1 R)
• M3: 820,844 km (0.117 R)
• M4: 1,452,895 km (0.072 R)
• M5: 2,969,219 km (0.119 R)
• M6: 5,528,240 km (0.113 R)
• M7: 6,622,099 km (0.082 R)
• M8: 8,653,190 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.9

Radius: 14.9

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.45 AU - 2.29 AU

Year: 1705 Days

Day: 7.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,321,972 km

• M1: 185,352 km (0.063 R)
• M2: 719,267 km (0.095 R)
• M3: 1,273,078 km (0.11 R)
• M4: 1,905,428 km (0.119 R)
• M5: 4,262,492 km (0.087 R)
• M6: 4,968,744 km (0.06 R)
• M7: 6,642,445 km (0.045 R)
• M8: 7,203,287 km (0.032 R)
• M9: 7,795,695 km (0.107 R)
• M10: 8,729,634 km (0.115 R)
• M11: 10,043,702 km (0.097 R)
• M12: 10,856,916 km (0.079 R)
• M13: 12,939,468 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960.4

Radius: 8.3

Gravity: 13.94 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.68 AU - 2.36 AU

Year: 1915 Days

Day: 8.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,321,972 km

• M1: 103,223 km (0.12 R)
• M2: 487,988 km (0.057 R)
• M3: 862,881 km (0.061 R)
• M4: 1,333,216 km (0.049 R)
• M5: 1,750,295 km (0.056 R)
• M6: 2,226,166 km (0.093 R)
• M7: 2,523,267 km (0.116 R)
• M8: 2,862,256 km (0.088 R)
• M9: 3,332,891 km (0.089 R)
• M10: 4,533,414 km (0.04 R)
• M11: 5,243,405 km (0.069 R)
• M12: 6,579,464 km (0.074 R)
• M13: 7,819,481 km (0.071 R)
• M14: 8,254,960 km (0.114 R)
• M15: 10,492,346 km (0.035 R)
• M16: 14,539,118 km (0.074 R)
• M17: 15,007,808 km (0.032 R)
• M18: 15,389,881 km (0.114 R)
• M19: 15,975,257 km (0.025 R)
• M20: 16,424,051 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 554

Radius: 8.8

Gravity: 7.15 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.87 AU - 2.83 AU

Year: 2402 Days

Day: 11.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 60,321,972 km

• M1: 109,506 km (0.095 R)
• M2: 558,748 km (0.104 R)
• M3: 851,062 km (0.116 R)
• M4: 1,472,941 km (0.045 R)
• M5: 1,800,560 km (0.114 R)
• M6: 2,479,136 km (0.063 R)
• M7: 2,978,194 km (0.091 R)
• M8: 3,832,099 km (0.115 R)
• M9: 5,062,093 km (0.112 R)
• M10: 5,549,183 km (0.043 R)
• M11: 7,030,352 km (0.096 R)
• M12: 7,402,103 km (0.1 R)
• M13: 9,634,103 km (0.094 R)
• M14: 9,950,353 km (0.075 R)
• M15: 10,529,745 km (0.111 R)
• M16: 11,285,514 km (0.075 R)
• M17: 11,795,792 km (0.089 R)
• M18: 12,778,201 km (0.067 R)
• M19: 13,681,772 km (0.099 R)
• M20: 14,905,333 km (0.051 R)
• M21: 15,234,150 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 713.5

Radius: 9.7

Gravity: 7.58 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 3.99 AU - 5.07 AU

Year: 6429 Days

Day: 13.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,321,972 km

• M1: 121,025 km (0.102 R)
• M2: 542,591 km (0.096 R)
• M3: 2,699,045 km (0.101 R)
• M4: 3,131,233 km (0.069 R)
• M5: 3,518,692 km (0.078 R)
• M6: 4,934,187 km (0.093 R)
• M7: 5,582,993 km (0.093 R)
• M8: 6,354,618 km (0.09 R)
• M9: 6,978,741 km (0.112 R)
• M10: 8,594,098 km (0.111 R)
• M11: 9,141,028 km (0.03 R)
• M12: 10,491,897 km (0.096 R)
• M13: 11,413,719 km (0.063 R)
• M14: 12,441,307 km (0.092 R)
• M15: 17,371,903 km (0.078 R)
• M16: 28,579,626 km (0.055 R)
• M17: 30,564,341 km (0.075 R)
• M18: 33,044,973 km (0.074 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 491.7

Radius: 7.1

Gravity: 9.75 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 6.94 AU - 7.28 AU

Year: 12643 Days

Day: 23.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 60,321,972 km

• M1: 110,254 km (0.098 R)
• M2: 539,001 km (0.082 R)
• M3: 843,134 km (0.093 R)
• M4: 1,551,928 km (0.055 R)
• M5: 1,904,830 km (0.12 R)
• M6: 2,386,684 km (0.102 R)
• M7: 3,415,918 km (0.111 R)
• M8: 5,027,835 km (0.082 R)
• M9: 6,237,633 km (0.109 R)
• M10: 8,838,093 km (0.053 R)
• M11: 10,428,318 km (0.038 R)
• M12: 14,423,927 km (0.104 R)
• M13: 21,645,914 km (0.048 R)
• M14: 29,990,035 km (0.079 R)
• M15: 32,060,320 km (0.095 R)
• M16: 35,045,096 km (0.111 R)
• M17: 42,899,733 km (0.111 R)
• M18: 43,170,954 km (0.08 R)
• M19: 48,986,870 km (0.082 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 325.2

Radius: 6.2

Gravity: 8.46 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 9.35 AU - 10.27 AU

Year: 20490 Days

Day: 21 Hours

Environment

Temp: -228 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 60,321,972 km

• M1: 77,641 km (0.113 R)
• M2: 301,440 km (0.119 R)
• M3: 581,038 km (0.069 R)
• M4: 791,074 km (0.071 R)
• M5: 1,160,580 km (0.093 R)
• M6: 1,546,393 km (0.087 R)
• M7: 2,841,312 km (0.079 R)
• M8: 3,330,946 km (0.11 R)
• M9: 4,108,855 km (0.107 R)
• M10: 4,320,985 km (0.12 R)
• M11: 5,350,218 km (0.083 R)
• M12: 5,677,389 km (0.095 R)
• M13: 6,331,879 km (0.081 R)
• M14: 7,835,936 km (0.04 R)
• M15: 8,646,159 km (0.102 R)
• M16: 9,829,478 km (0.056 R)
• M17: 10,885,339 km (0.044 R)
• M18: 11,710,372 km (0.111 R)
• M19: 12,767,430 km (0.103 R)
• M20: 18,523,059 km (0.049 R)
• M21: 20,564,471 km (0.096 R)
• M22: 22,283,500 km (0.118 R)
• M23: 22,751,293 km (0.053 R)
• M24: 24,489,770 km (0.109 R)
• M25: 30,006,341 km (0.116 R)
• M26: 31,154,355 km (0.111 R)
• M27: 31,504,414 km (0.109 R)
• M28: 33,172,879 km (0.082 R)
• M29: 44,142,143 km (0.078 R)
• M30: 44,731,708 km (0.091 R)
• M31: 51,404,072 km (0.084 R)
• M32: 52,714,400 km (0.093 R)
• M33: 54,721,555 km (0.1 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: 520 - 17,721 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit