🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.72 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.5

Radius: 11.7

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.32 AU - 1.56 AU

Year: 1134 Days

Day: 12.3 Hours

Environment

Temp: -177 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 79,349,216 km

• M1: 145,708 km (0.094 R)
• M2: 566,228 km (0.098 R)
• M3: 1,156,092 km (0.115 R)
• M4: 1,798,466 km (0.032 R)
• M5: 2,574,729 km (0.1 R)
• M6: 3,536,942 km (0.078 R)
• M7: 3,947,738 km (0.108 R)
• M8: 4,724,600 km (0.066 R)
• M9: 6,124,238 km (0.031 R)
• M10: 6,759,430 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154.6

Radius: 10.7

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.9 AU - 2.3 AU

Year: 1996 Days

Day: 12.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 79,349,216 km

• M1: 133,142 km (0.085 R)
• M2: 486,492 km (0.071 R)
• M3: 1,053,468 km (0.113 R)
• M4: 1,414,897 km (0.119 R)
• M5: 2,735,696 km (0.071 R)
• M6: 3,144,547 km (0.116 R)
• M7: 4,038,395 km (0.075 R)
• M8: 4,382,769 km (0.12 R)
• M9: 5,263,900 km (0.056 R)
• M10: 6,367,185 km (0.11 R)
• M11: 6,812,837 km (0.079 R)
• M12: 7,279,283 km (0.037 R)
• M13: 7,618,421 km (0.071 R)
• M14: 8,645,859 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.3

Radius: 14

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 1.89 AU - 2.77 AU

Year: 2333 Days

Day: 11.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 79,349,216 km

• M1: 181,013 km (0.117 R)
• M2: 802,742 km (0.08 R)
• M3: 1,367,325 km (0.06 R)
• M4: 1,852,770 km (0.073 R)
• M5: 2,454,751 km (0.088 R)
• M6: 3,484,284 km (0.119 R)
• M7: 3,998,153 km (0.096 R)
• M8: 4,475,669 km (0.087 R)
• M9: 5,373,256 km (0.111 R)
• M10: 9,610,018 km (0.047 R)
• M11: 10,667,226 km (0.075 R)
• M12: 12,181,605 km (0.114 R)
• M13: 13,374,199 km (0.062 R)
• M14: 15,735,452 km (0.058 R)
• M15: 16,458,309 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.6

Radius: 13.7

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 2.75 AU - 2.91 AU

Year: 3123 Days

Day: 14 Hours

Environment

Temp: -201 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 79,349,216 km

• M1: 170,392 km (0.069 R)
• M2: 696,528 km (0.091 R)
• M3: 1,244,505 km (0.105 R)
• M4: 1,902,735 km (0.087 R)
• M5: 2,415,407 km (0.054 R)
• M6: 4,770,676 km (0.095 R)
• M7: 5,784,052 km (0.104 R)
• M8: 6,399,947 km (0.062 R)
• M9: 8,133,337 km (0.12 R)
• M10: 8,620,727 km (0.082 R)
• M11: 10,003,610 km (0.085 R)
• M12: 10,769,102 km (0.071 R)
• M13: 11,357,770 km (0.078 R)
• M14: 11,791,304 km (0.082 R)
• M15: 13,017,558 km (0.107 R)
• M16: 14,731,650 km (0.107 R)
• M17: 15,457,948 km (0.091 R)
• M18: 16,814,053 km (0.094 R)
• M19: 17,321,189 km (0.045 R)
• M20: 22,560,107 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17.7

Radius: 10.5

Gravity: 0.16 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 3.87 AU - 5.27 AU

Year: 6409 Days

Day: 11.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 79,349,216 km

• M1: 130,898 km (0.055 R)
• M2: 1,423,125 km (0.071 R)
• M3: 2,832,187 km (0.11 R)
• M4: 4,991,931 km (0.039 R)
• M5: 6,632,870 km (0.119 R)
• M6: 9,134,745 km (0.11 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 355.2

Radius: 7.3

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 4.75 AU - 7.91 AU

Year: 10448 Days

Day: 16.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 79,349,216 km

• M1: 90,806 km (0.114 R)
• M2: 495,019 km (0.068 R)
• M3: 913,445 km (0.065 R)
• M4: 1,374,954 km (0.096 R)
• M5: 1,816,118 km (0.056 R)
• M6: 2,313,232 km (0.106 R)
• M7: 4,093,895 km (0.099 R)
• M8: 5,215,730 km (0.114 R)
• M9: 5,980,175 km (0.119 R)
• M10: 7,187,878 km (0.098 R)
• M11: 7,690,079 km (0.078 R)
• M12: 9,427,807 km (0.047 R)
• M13: 9,702,320 km (0.071 R)
• M14: 10,029,490 km (0.092 R)
• M15: 10,267,650 km (0.071 R)
• M16: 11,412,074 km (0.082 R)
• M17: 11,882,409 km (0.04 R)
• M18: 12,973,427 km (0.12 R)
• M19: 14,249,347 km (0.082 R)
• M20: 16,447,987 km (0.033 R)
• M21: 17,662,572 km (0.038 R)
• M22: 18,504,808 km (0.088 R)
• M23: 18,935,799 km (0.111 R)
• M24: 23,789,502 km (0.057 R)
• M25: 25,961,065 km (0.12 R)
• M26: 34,437,579 km (0.081 R)
• M27: 37,437,166 km (0.117 R)
• M28: 37,666,051 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 281.2

Radius: 5.6

Gravity: 8.97 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 6.21 AU - 9.93 AU

Year: 15039 Days

Day: 15.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 79,349,216 km

• M1: 250,277 km (0.118 R)
• M2: 566,826 km (0.071 R)
• M3: 843,882 km (0.094 R)
• M4: 1,368,521 km (0.061 R)
• M5: 1,732,343 km (0.073 R)
• M6: 2,551,691 km (0.041 R)
• M7: 3,382,857 km (0.109 R)
• M8: 3,860,223 km (0.081 R)
• M9: 4,467,890 km (0.11 R)
• M10: 9,085,827 km (0.064 R)
• M11: 9,659,235 km (0.119 R)
• M12: 11,800,430 km (0.073 R)
• M13: 13,070,815 km (0.107 R)
• M14: 15,275,289 km (0.093 R)
• M15: 16,710,681 km (0.103 R)
• M16: 17,208,393 km (0.113 R)
• M17: 19,221,382 km (0.1 R)
• M18: 23,886,292 km (0.117 R)
• M19: 24,155,568 km (0.103 R)
• M20: 24,426,939 km (0.049 R)
• M21: 27,546,802 km (0.103 R)
• M22: 28,744,333 km (0.115 R)
• M23: 29,458,514 km (0.076 R)
• M24: 31,242,468 km (0.111 R)
• M25: 33,319,934 km (0.111 R)
• M26: 35,371,369 km (0.054 R)
• M27: 39,598,556 km (0.067 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 532.3

Radius: 4.1

Gravity: 31.67 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 9.04 AU - 13.1 AU

Year: 24162 Days

Day: 23.4 Hours

Environment

Temp: -235 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 79,349,216 km

• M1: 51,611 km (0.069 R)
• M2: 237,561 km (0.06 R)
• M3: 447,447 km (0.12 R)
• M4: 918,531 km (0.119 R)
• M5: 1,460,823 km (0.057 R)
• M6: 1,629,270 km (0.085 R)
• M7: 1,791,734 km (0.099 R)
• M8: 1,985,014 km (0.057 R)
• M9: 4,754,819 km (0.113 R)
• M10: 7,229,018 km (0.079 R)
• M11: 7,373,829 km (0.118 R)
• M12: 9,153,744 km (0.116 R)
• M13: 10,631,921 km (0.115 R)
• M14: 12,817,097 km (0.114 R)
• M15: 14,505,758 km (0.113 R)
• M16: 15,603,208 km (0.094 R)
• M17: 17,785,990 km (0.12 R)
• M18: 28,432,721 km (0.116 R)
• M19: 34,998,571 km (0.075 R)
• M20: 38,851,913 km (0.091 R)
• M21: 40,045,704 km (0.077 R)
• M22: 42,037,450 km (0.075 R)
• M23: 44,740,235 km (0.08 R)
• M24: 47,387,818 km (0.062 R)
• M25: 48,922,094 km (0.105 R)
• M26: 51,552,174 km (0.025 R)
• M27: 51,730,794 km (0.056 R)
• M28: 68,254,178 km (0.073 R)
• M29: 76,761,061 km (0.1 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 457 - 16,207 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit