🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 581.9

Radius: 12.4

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.43 AU - 0.65 AU

Year: 274 Days

Day: 14.9 Hours

Environment

Temp: -138 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 79,364,959 km

• M1: 154,684 km (0.06 R)
• M2: 579,692 km (0.065 R)
• M3: 1,003,353 km (0.103 R)
• M4: 1,750,295 km (0.045 R)
• M5: 2,400,148 km (0.082 R)
• M6: 3,146,492 km (0.11 R)
• M7: 3,983,791 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.6

Radius: 11.2

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.56 AU - 0.92 AU

Year: 439 Days

Day: 10.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 135.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 79,364,959 km

• M1: 139,276 km (0.08 R)
• M2: 504,294 km (0.06 R)
• M3: 972,685 km (0.112 R)
• M4: 1,596,359 km (0.066 R)
• M5: 2,323,853 km (0.109 R)
• M6: 2,788,654 km (0.108 R)
• M7: 4,875,694 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 680.3

Radius: 14.4

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.83 AU - 1.03 AU

Year: 619 Days

Day: 9.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 79,364,959 km

• M1: 179,069 km (0.104 R)
• M2: 657,183 km (0.103 R)
• M3: 1,248,245 km (0.063 R)
• M4: 2,076,119 km (0.091 R)
• M5: 2,749,609 km (0.117 R)
• M6: 3,273,201 km (0.113 R)
• M7: 3,767,024 km (0.073 R)
• M8: 4,280,893 km (0.101 R)
• M9: 5,486,502 km (0.092 R)
• M10: 6,207,713 km (0.114 R)
• M11: 7,266,866 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.1

Radius: 12.9

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.93 AU - 1.25 AU

Year: 786 Days

Day: 6.6 Hours

Environment

Temp: -175 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 79,364,959 km

• M1: 160,519 km (0.084 R)
• M2: 593,156 km (0.043 R)
• M3: 1,196,185 km (0.1 R)
• M4: 2,673,314 km (0.113 R)
• M5: 4,250,524 km (0.078 R)
• M6: 4,784,738 km (0.081 R)
• M7: 6,046,148 km (0.103 R)
• M8: 7,540,780 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.2

Radius: 11.5

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.91 AU - 1.37 AU

Year: 840 Days

Day: 12.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 79,364,959 km

• M1: 143,016 km (0.098 R)
• M2: 507,735 km (0.058 R)
• M3: 886,068 km (0.07 R)
• M4: 1,278,463 km (0.066 R)
• M5: 1,852,620 km (0.111 R)
• M6: 2,252,046 km (0.107 R)
• M7: 2,709,217 km (0.099 R)
• M8: 3,181,049 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.6

Radius: 9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.18 AU - 1.54 AU

Year: 1095 Days

Day: 14.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 79,364,959 km

• M1: 111,899 km (0.044 R)
• M2: 754,721 km (0.068 R)
• M3: 1,599,052 km (0.111 R)
• M4: 1,924,577 km (0.104 R)
• M5: 2,642,946 km (0.064 R)
• M6: 2,953,660 km (0.082 R)
• M7: 3,255,250 km (0.08 R)
• M8: 3,734,112 km (0.118 R)
• M9: 4,575,002 km (0.089 R)
• M10: 5,010,481 km (0.085 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 949.8

Radius: 11.1

Gravity: 7.71 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 3.11 AU - 3.37 AU

Year: 4026 Days

Day: 10.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 79,364,959 km

• M1: 138,079 km (0.073 R)
• M2: 486,343 km (0.105 R)
• M3: 913,295 km (0.12 R)
• M4: 1,413,849 km (0.097 R)
• M5: 3,207,229 km (0.099 R)
• M6: 6,309,141 km (0.073 R)
• M7: 6,950,317 km (0.104 R)
• M8: 7,390,135 km (0.075 R)
• M9: 8,066,168 km (0.068 R)
• M10: 8,514,213 km (0.061 R)
• M11: 11,053,637 km (0.059 R)
• M12: 13,378,687 km (0.113 R)
• M13: 15,211,261 km (0.099 R)
• M14: 16,187,686 km (0.113 R)
• M15: 16,962,304 km (0.092 R)
• M16: 24,613,637 km (0.065 R)
• M17: 25,878,038 km (0.098 R)
• M18: 28,109,141 km (0.107 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.9

Radius: 9.1

Gravity: 8.55 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 3.61 AU - 4.39 AU

Year: 5522 Days

Day: 11.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 79,364,959 km

• M1: 113,545 km (0.114 R)
• M2: 445,353 km (0.087 R)
• M3: 781,798 km (0.116 R)
• M4: 1,208,601 km (0.106 R)
• M5: 1,896,751 km (0.067 R)
• M6: 2,193,554 km (0.091 R)
• M7: 2,770,403 km (0.06 R)
• M8: 3,552,949 km (0.091 R)
• M9: 4,249,926 km (0.111 R)
• M10: 4,843,680 km (0.05 R)
• M11: 6,789,051 km (0.087 R)
• M12: 7,382,954 km (0.046 R)
• M13: 8,241,048 km (0.072 R)
• M14: 9,543,447 km (0.086 R)
• M15: 10,154,554 km (0.052 R)
• M16: 13,826,284 km (0.103 R)
• M17: 14,269,842 km (0.076 R)
• M18: 18,431,804 km (0.097 R)
• M19: 19,448,022 km (0.109 R)
• M20: 20,287,566 km (0.031 R)
• M21: 22,264,501 km (0.057 R)
• M22: 22,797,369 km (0.066 R)
• M23: 23,338,614 km (0.117 R)
• M24: 24,286,466 km (0.097 R)
• M25: 25,095,791 km (0.11 R)
• M26: 26,258,914 km (0.04 R)
• M27: 27,370,726 km (0.058 R)
• M28: 28,335,781 km (0.11 R)
• M29: 29,323,277 km (0.098 R)
• M30: 30,800,556 km (0.107 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 664.5

Radius: 4

Gravity: 41.53 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 8.02 AU - 11.86 AU

Year: 21632 Days

Day: 23.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 79,364,959 km

• M1: 170,392 km (0.091 R)
• M2: 380,727 km (0.086 R)
• M3: 512,373 km (0.036 R)
• M4: 773,870 km (0.117 R)
• M5: 2,344,647 km (0.085 R)
• M6: 2,624,395 km (0.056 R)
• M7: 3,112,533 km (0.104 R)
• M8: 3,278,437 km (0.095 R)
• M9: 3,450,325 km (0.118 R)
• M10: 4,232,423 km (0.104 R)
• M11: 5,596,606 km (0.095 R)
• M12: 5,759,817 km (0.06 R)
• M13: 13,102,380 km (0.088 R)
• M14: 17,613,653 km (0.115 R)
• M15: 19,321,014 km (0.11 R)
• M16: 20,647,498 km (0.065 R)
• M17: 26,675,993 km (0.11 R)
• M18: 31,031,685 km (0.079 R)
• M19: 34,320,295 km (0.098 R)
• M20: 36,684,689 km (0.079 R)
• M21: 37,256,303 km (0.097 R)
• M22: 42,357,440 km (0.057 R)
• M23: 45,894,682 km (0.091 R)
• M24: 49,972,570 km (0.097 R)
• M25: 59,622,531 km (0.053 R)
• M26: 70,003,725 km (0.071 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 543 - 19,991 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit