🌌 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: 555.1

Radius: 8.1

Gravity: 8.46 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.64 AU - 1.02 AU

Year: 513 Days

Day: 10.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 59,897,623 km

• M1: 100,829 km (0.076 R)
• M2: 356,492 km (0.119 R)
• M3: 628,311 km (0.065 R)
• M4: 1,166,415 km (0.098 R)
• M5: 1,512,285 km (0.051 R)
• M6: 2,042,609 km (0.1 R)
• M7: 3,161,153 km (0.11 R)
• M8: 3,446,436 km (0.079 R)
• M9: 4,179,765 km (0.102 R)
• M10: 4,436,474 km (0.112 R)
• M11: 4,825,878 km (0.086 R)
• M12: 5,237,870 km (0.111 R)
• M13: 5,707,608 km (0.052 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.8

Radius: 11.2

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.42 AU - 1.62 AU

Year: 1271 Days

Day: 14.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 59,897,623 km

• M1: 148,551 km (0.083 R)
• M2: 506,838 km (0.046 R)
• M3: 1,248,544 km (0.106 R)
• M4: 2,213,899 km (0.119 R)
• M5: 2,882,601 km (0.096 R)
• M6: 4,747,937 km (0.069 R)
• M7: 7,213,460 km (0.086 R)
• M8: 8,356,537 km (0.071 R)
• M9: 9,183,065 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 74.4

Radius: 9.8

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.45 AU - 1.79 AU

Year: 1399 Days

Day: 14.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,897,623 km

• M1: 122,670 km (0.102 R)
• M2: 435,330 km (0.102 R)
• M3: 781,499 km (0.057 R)
• M4: 1,276,070 km (0.115 R)
• M5: 1,582,297 km (0.111 R)
• M6: 2,114,716 km (0.106 R)
• M7: 2,520,126 km (0.09 R)
• M8: 3,676,218 km (0.106 R)
• M9: 4,168,096 km (0.104 R)
• M10: 4,481,055 km (0.039 R)
• M11: 4,995,821 km (0.113 R)
• M12: 5,720,024 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.6

Radius: 10.1

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 3.44 AU - 4.16 AU

Year: 5024 Days

Day: 6.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 59,897,623 km

• M1: 125,662 km (0.116 R)
• M2: 456,722 km (0.104 R)
• M3: 994,826 km (0.067 R)
• M4: 1,751,342 km (0.1 R)
• M5: 2,651,173 km (0.116 R)
• M6: 3,872,790 km (0.055 R)
• M7: 4,325,323 km (0.11 R)
• M8: 4,721,608 km (0.088 R)
• M9: 5,461,070 km (0.116 R)
• M10: 5,793,327 km (0.087 R)
• M11: 6,330,982 km (0.068 R)
• M12: 6,843,205 km (0.111 R)
• M13: 7,230,065 km (0.089 R)
• M14: 7,789,860 km (0.11 R)
• M15: 8,615,042 km (0.078 R)
• M16: 9,792,228 km (0.073 R)
• M17: 10,207,661 km (0.105 R)
• M18: 10,595,269 km (0.065 R)
• M19: 12,595,243 km (0.066 R)
• M20: 13,498,515 km (0.069 R)
• M21: 13,824,638 km (0.114 R)
• M22: 15,790,504 km (0.058 R)
• M23: 18,273,829 km (0.108 R)
• M24: 19,195,501 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17.4

Radius: 8.8

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 3.6 AU - 4.48 AU

Year: 5508 Days

Day: 7.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 59,897,623 km

• M1: 109,655 km (0.089 R)
• M2: 686,205 km (0.042 R)
• M3: 1,744,012 km (0.029 R)
• M4: 4,653,541 km (0.077 R)
• M5: 5,616,353 km (0.119 R)
• M6: 6,103,144 km (0.112 R)
• M7: 6,400,096 km (0.058 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 10.4

Radius: 7.2

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 5.41 AU - 6.57 AU

Year: 9943 Days

Day: 21.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 59,897,623 km

• M1: 90,058 km (0.061 R)
• M2: 1,209,499 km (0.111 R)
• M3: 1,797,269 km (0.091 R)
• M4: 2,462,979 km (0.092 R)
• M5: 3,603,065 km (0.07 R)
• M6: 4,844,727 km (0.119 R)
• M7: 8,362,072 km (0.08 R)
• M8: 9,528,337 km (0.11 R)
• M9: 10,832,531 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 238.3

Radius: 4

Gravity: 14.89 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 5.69 AU - 8.85 AU

Year: 13295 Days

Day: 23.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 59,897,623 km

• M1: 50,863 km (0.114 R)
• M2: 207,343 km (0.09 R)
• M3: 351,555 km (0.073 R)
• M4: 1,706,912 km (0.058 R)
• M5: 2,095,268 km (0.071 R)
• M6: 2,427,674 km (0.114 R)
• M7: 7,047,107 km (0.108 R)
• M8: 7,431,424 km (0.093 R)
• M9: 7,992,865 km (0.065 R)
• M10: 9,846,532 km (0.106 R)
• M11: 10,180,883 km (0.099 R)
• M12: 10,326,591 km (0.118 R)
• M13: 12,459,259 km (0.083 R)
• M14: 14,193,846 km (0.049 R)
• M15: 15,371,929 km (0.069 R)
• M16: 15,952,070 km (0.082 R)
• M17: 16,148,641 km (0.115 R)
• M18: 17,019,301 km (0.077 R)
• M19: 17,500,857 km (0.109 R)
• M20: 18,780,816 km (0.066 R)
• M21: 22,578,657 km (0.073 R)
• M22: 25,228,185 km (0.095 R)
• M23: 30,025,639 km (0.104 R)
• M24: 37,435,670 km (0.117 R)
• M25: 39,551,433 km (0.116 R)
• M26: 40,638,561 km (0.044 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 34.6

Radius: 4.5

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 7.72 AU - 12.16 AU

Year: 21255 Days

Day: 22.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 59,897,623 km

• M1: 89,759 km (0.105 R)
• M2: 1,225,506 km (0.117 R)
• M3: 1,750,445 km (0.09 R)
• M4: 2,396,707 km (0.107 R)
• M5: 8,692,384 km (0.065 R)
• M6: 11,151,025 km (0.084 R)
• M7: 12,638,028 km (0.071 R)
• M8: 14,361,096 km (0.102 R)
• M9: 22,821,305 km (0.046 R)
• M10: 27,825,802 km (0.088 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 907.8

Radius: 4.3

Gravity: 49.1 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 8.7 AU - 12.24 AU

Year: 22978 Days

Day: 19.2 Hours

Environment

Temp: -244 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 59,897,623 km

• M1: 53,556 km (0.119 R)
• M2: 192,832 km (0.071 R)
• M3: 401,371 km (0.075 R)
• M4: 605,871 km (0.116 R)
• M5: 808,726 km (0.076 R)
• M6: 1,056,011 km (0.088 R)
• M7: 1,336,059 km (0.086 R)
• M8: 2,108,283 km (0.058 R)
• M9: 2,478,238 km (0.045 R)
• M10: 3,376,274 km (0.075 R)
• M11: 3,686,690 km (0.091 R)
• M12: 3,948,337 km (0.089 R)
• M13: 5,002,254 km (0.06 R)
• M14: 8,514,812 km (0.117 R)
• M15: 9,385,471 km (0.108 R)
• M16: 10,899,402 km (0.104 R)
• M17: 12,568,764 km (0.112 R)
• M18: 16,230,920 km (0.047 R)
• M19: 20,545,622 km (0.117 R)
• M20: 24,072,841 km (0.041 R)
• M21: 25,216,367 km (0.106 R)
• M22: 26,756,626 km (0.073 R)
• M23: 27,611,279 km (0.093 R)
• M24: 29,762,646 km (0.037 R)
• M25: 35,551,485 km (0.067 R)
• M26: 35,991,453 km (0.084 R)
• M27: 37,333,495 km (0.093 R)
• M28: 38,246,341 km (0.119 R)
• M29: 48,928,078 km (0.095 R)
• M30: 54,749,679 km (0.107 R)
• M31: 63,349,612 km (0.087 R)
• M32: 63,564,734 km (0.108 R)
• M33: 63,780,304 km (0.117 R)
• M34: 65,083,750 km (0.102 R)
• M35: 65,522,072 km (0.09 R)
• M36: 73,753,845 km (0.101 R)
• M37: 87,885,159 km (0.107 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 235.2

Radius: 3.4

Gravity: 20.35 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 8.09 AU - 13.37 AU

Year: 23839 Days

Day: 18.1 Hours

Environment

Temp: -238 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 59,897,623 km

• M1: 56,548 km (0.088 R)
• M2: 167,849 km (0.057 R)
• M3: 506,838 km (0.114 R)
• M4: 977,472 km (0.102 R)
• M5: 1,740,571 km (0.087 R)
• M6: 2,116,062 km (0.078 R)
• M7: 2,543,164 km (0.112 R)
• M8: 2,928,977 km (0.052 R)
• M9: 3,249,415 km (0.04 R)
• M10: 3,620,268 km (0.099 R)
• M11: 5,352,462 km (0.12 R)
• M12: 6,703,331 km (0.074 R)
• M13: 14,169,910 km (0.116 R)
• M14: 14,307,540 km (0.069 R)
• M15: 16,178,411 km (0.115 R)
• M16: 16,785,330 km (0.066 R)
• M17: 20,484,736 km (0.067 R)
• M18: 22,851,823 km (0.077 R)
• M19: 25,904,666 km (0.103 R)
• M20: 40,003,368 km (0.093 R)
• M21: 55,349,267 km (0.114 R)
• M22: 59,897,641 km (0.118 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: 439 - 11,015 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit