🌌 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: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 713.3

Radius: 11.6

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.82 AU - 0.84 AU

Year: 522 Days

Day: 10.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 22,913,770 km

• M1: 144,212 km (0.067 R)
• M2: 511,625 km (0.093 R)
• M3: 874,100 km (0.106 R)
• M4: 1,666,520 km (0.113 R)
• M5: 2,150,619 km (0.116 R)
• M6: 2,561,564 km (0.115 R)
• M7: 3,002,429 km (0.086 R)
• M8: 3,393,777 km (0.047 R)
• M9: 3,873,388 km (0.1 R)
• M10: 4,427,648 km (0.074 R)
• M11: 4,953,485 km (0.059 R)
• M12: 5,748,897 km (0.081 R)
• M13: 6,607,738 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 505

Radius: 13.5

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.94 AU - 1.22 AU

Year: 775 Days

Day: 10.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 22,913,770 km

• M1: 169,943 km (0.111 R)
• M2: 668,254 km (0.078 R)
• M3: 1,232,088 km (0.12 R)
• M4: 1,968,110 km (0.051 R)
• M5: 2,546,904 km (0.04 R)
• M6: 4,321,583 km (0.098 R)
• M7: 5,015,269 km (0.035 R)
• M8: 5,933,201 km (0.095 R)
• M9: 7,416,314 km (0.046 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 203.1

Radius: 14.1

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.24 AU - 1.4 AU

Year: 1047 Days

Day: 6 Hours

Environment

Temp: -182 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 22,913,770 km

• M1: 175,329 km (0.12 R)
• M2: 628,461 km (0.115 R)
• M3: 1,077,703 km (0.114 R)
• M4: 1,754,783 km (0.092 R)
• M5: 2,371,725 km (0.069 R)
• M6: 3,214,858 km (0.085 R)
• M7: 3,979,154 km (0.069 R)
• M8: 5,427,560 km (0.103 R)
• M9: 6,339,659 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 866.2

Radius: 13.2

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.17 AU - 1.49 AU

Year: 1059 Days

Day: 5.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 22,913,770 km

• M1: 164,258 km (0.055 R)
• M2: 613,650 km (0.107 R)
• M3: 1,073,365 km (0.089 R)
• M4: 1,753,736 km (0.112 R)
• M5: 2,172,460 km (0.114 R)
• M6: 2,747,215 km (0.106 R)
• M7: 3,634,630 km (0.095 R)
• M8: 4,558,397 km (0.043 R)
• M9: 5,105,476 km (0.111 R)
• M10: 5,997,528 km (0.069 R)
• M11: 9,512,031 km (0.097 R)
• M12: 10,537,225 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 576.3

Radius: 9

Gravity: 7.11 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.04 AU - 1.7 AU

Year: 1107 Days

Day: 14.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 42.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 22,913,770 km

• M1: 111,899 km (0.06 R)
• M2: 396,135 km (0.09 R)
• M3: 762,500 km (0.119 R)
• M4: 1,045,988 km (0.083 R)
• M5: 1,546,244 km (0.065 R)
• M6: 1,857,108 km (0.083 R)
• M7: 2,893,971 km (0.091 R)
• M8: 3,187,931 km (0.117 R)
• M9: 3,712,570 km (0.067 R)
• M10: 4,859,986 km (0.085 R)
• M11: 5,927,666 km (0.099 R)
• M12: 6,494,343 km (0.069 R)
• M13: 7,048,902 km (0.05 R)
• M14: 7,760,988 km (0.105 R)
• M15: 8,793,064 km (0.033 R)
• M16: 9,706,209 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 744.8

Radius: 10

Gravity: 7.45 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.45 AU - 1.71 AU

Year: 1371 Days

Day: 6.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 22,913,770 km

• M1: 129,552 km (0.116 R)
• M2: 652,696 km (0.099 R)
• M3: 999,463 km (0.093 R)
• M4: 1,497,923 km (0.065 R)
• M5: 1,825,992 km (0.109 R)
• M6: 2,830,990 km (0.084 R)
• M7: 3,293,248 km (0.112 R)
• M8: 4,010,869 km (0.099 R)
• M9: 4,691,988 km (0.065 R)
• M10: 5,236,225 km (0.073 R)
• M11: 6,166,275 km (0.105 R)
• M12: 7,202,838 km (0.072 R)
• M13: 7,681,103 km (0.084 R)
• M14: 11,217,896 km (0.094 R)
• M15: 12,680,664 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 790.2

Radius: 14.5

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.55 AU - 2.17 AU

Year: 1751 Days

Day: 13.9 Hours

Environment

Temp: -193 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 22,913,770 km

• M1: 180,415 km (0.073 R)
• M2: 714,180 km (0.081 R)
• M3: 1,213,538 km (0.067 R)
• M4: 1,987,857 km (0.036 R)
• M5: 2,588,791 km (0.098 R)
• M6: 3,168,184 km (0.106 R)
• M7: 4,014,160 km (0.075 R)
• M8: 4,879,284 km (0.118 R)
• M9: 5,985,710 km (0.107 R)
• M10: 6,482,973 km (0.084 R)
• M11: 7,761,736 km (0.092 R)
• M12: 8,263,786 km (0.12 R)
• M13: 9,564,540 km (0.107 R)
• M14: 10,528,698 km (0.103 R)
• M15: 12,570,260 km (0.071 R)
• M16: 13,347,870 km (0.107 R)
• M17: 13,941,175 km (0.041 R)
• M18: 14,596,264 km (0.103 R)
• M19: 15,548,006 km (0.107 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693.7

Radius: 12.8

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 1.99 AU - 2.59 AU

Year: 2392 Days

Day: 10.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 22,913,770 km

• M1: 159,172 km (0.086 R)
• M2: 717,621 km (0.103 R)
• M3: 1,301,202 km (0.118 R)
• M4: 1,714,990 km (0.119 R)
• M5: 2,443,980 km (0.07 R)
• M6: 2,975,053 km (0.04 R)
• M7: 4,251,571 km (0.11 R)
• M8: 4,670,296 km (0.079 R)
• M9: 5,966,861 km (0.068 R)
• M10: 6,909,178 km (0.083 R)
• M11: 7,671,528 km (0.081 R)
• M12: 8,685,952 km (0.085 R)
• M13: 9,260,258 km (0.108 R)
• M14: 10,004,507 km (0.046 R)
• M15: 11,333,235 km (0.055 R)
• M16: 12,862,425 km (0.12 R)
• M17: 13,475,627 km (0.119 R)
• M18: 17,150,947 km (0.096 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.3

Radius: 11.5

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.82 AU - 3.58 AU

Year: 3951 Days

Day: 10.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 22,913,770 km

• M1: 143,016 km (0.064 R)
• M2: 507,436 km (0.077 R)
• M3: 868,416 km (0.099 R)
• M4: 1,525,150 km (0.094 R)
• M5: 2,082,702 km (0.081 R)
• M6: 2,537,479 km (0.102 R)
• M7: 3,400,509 km (0.086 R)
• M8: 4,382,170 km (0.115 R)
• M9: 4,963,807 km (0.039 R)
• M10: 6,281,764 km (0.078 R)
• M11: 7,022,274 km (0.115 R)
• M12: 8,466,342 km (0.078 R)
• M13: 9,596,554 km (0.08 R)
• M14: 18,755,833 km (0.052 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 547 - 10,949 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit