🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 245.9

Radius: 14.1

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.61 AU - 0.87 AU

Year: 439 Days

Day: 7.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 32,220,600 km

• M1: 179,069 km (0.038 R)
• M2: 683,662 km (0.117 R)
• M3: 1,344,436 km (0.05 R)
• M4: 1,897,799 km (0.043 R)
• M5: 2,344,498 km (0.103 R)
• M6: 2,853,131 km (0.055 R)
• M7: 3,341,867 km (0.119 R)
• M8: 4,097,336 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30.3

Radius: 8

Gravity: 0.47 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.75 AU - 0.93 AU

Year: 531 Days

Day: 13.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 32,220,600 km

• M1: 99,483 km (0.117 R)
• M2: 545,284 km (0.119 R)
• M3: 1,270,984 km (0.106 R)
• M4: 2,208,513 km (0.054 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185.6

Radius: 8.7

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.91 AU - 1.11 AU

Year: 701 Days

Day: 9.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 32,220,600 km

• M1: 108,309 km (0.097 R)
• M2: 391,498 km (0.096 R)
• M3: 700,866 km (0.051 R)
• M4: 1,000,511 km (0.119 R)
• M5: 1,297,462 km (0.096 R)
• M6: 1,689,110 km (0.1 R)
• M7: 2,075,820 km (0.095 R)
• M8: 2,502,324 km (0.099 R)
• M9: 2,862,256 km (0.12 R)
• M10: 3,784,976 km (0.116 R)
• M11: 4,342,078 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.6

Radius: 11.2

Gravity: 7.94 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.55 AU - 1.83 AU

Year: 1516 Days

Day: 11.1 Hours

Environment

Temp: -204 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 32,220,600 km

• M1: 145,260 km (0.117 R)
• M2: 524,341 km (0.108 R)
• M3: 889,659 km (0.094 R)
• M4: 1,678,189 km (0.094 R)
• M5: 2,316,373 km (0.083 R)
• M6: 2,784,316 km (0.094 R)
• M7: 3,379,715 km (0.039 R)
• M8: 3,752,064 km (0.1 R)
• M9: 4,362,274 km (0.074 R)
• M10: 4,804,934 km (0.102 R)
• M11: 5,233,382 km (0.089 R)
• M12: 7,458,950 km (0.1 R)
• M13: 8,517,056 km (0.042 R)
• M14: 9,773,378 km (0.101 R)
• M15: 10,463,773 km (0.107 R)
• M16: 10,929,770 km (0.086 R)
• M17: 11,597,725 km (0.03 R)
• M18: 14,901,145 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.2

Radius: 12.1

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 2.49 AU - 2.79 AU

Year: 2961 Days

Day: 9.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 32,220,600 km

• M1: 150,495 km (0.105 R)
• M2: 603,777 km (0.093 R)
• M3: 1,299,706 km (0.108 R)
• M4: 2,201,183 km (0.054 R)
• M5: 3,104,904 km (0.1 R)
• M6: 4,689,145 km (0.064 R)
• M7: 5,128,664 km (0.102 R)
• M8: 6,615,667 km (0.119 R)
• M9: 7,170,226 km (0.093 R)
• M10: 7,729,423 km (0.059 R)
• M11: 8,263,038 km (0.079 R)
• M12: 8,650,946 km (0.077 R)
• M13: 9,344,631 km (0.051 R)
• M14: 10,326,741 km (0.119 R)
• M15: 11,512,454 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.5

Radius: 10.3

Gravity: 7.61 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 2.09 AU - 3.23 AU

Year: 2995 Days

Day: 6.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 32,220,600 km

• M1: 128,953 km (0.102 R)
• M2: 493,075 km (0.047 R)
• M3: 839,244 km (0.096 R)
• M4: 1,434,344 km (0.09 R)
• M5: 1,995,935 km (0.065 R)
• M6: 4,923,266 km (0.068 R)
• M7: 5,473,188 km (0.102 R)
• M8: 6,119,301 km (0.057 R)
• M9: 7,403,449 km (0.113 R)
• M10: 8,194,074 km (0.12 R)
• M11: 8,716,170 km (0.092 R)
• M12: 9,039,900 km (0.113 R)
• M13: 10,822,658 km (0.062 R)
• M14: 11,239,288 km (0.056 R)
• M15: 12,644,910 km (0.115 R)
• M16: 15,225,473 km (0.061 R)
• M17: 17,110,556 km (0.079 R)
• M18: 19,511,003 km (0.076 R)
• M19: 21,730,886 km (0.077 R)
• M20: 22,461,971 km (0.052 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375.9

Radius: 11.4

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 2.98 AU - 3.38 AU

Year: 3914 Days

Day: 9.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 32,220,600 km

• M1: 142,118 km (0.077 R)
• M2: 575,503 km (0.093 R)
• M3: 1,268,291 km (0.104 R)
• M4: 1,709,156 km (0.088 R)
• M5: 2,106,488 km (0.114 R)
• M6: 2,733,303 km (0.094 R)
• M7: 3,125,548 km (0.112 R)
• M8: 3,746,080 km (0.089 R)
• M9: 4,875,993 km (0.11 R)
• M10: 5,258,365 km (0.079 R)
• M11: 6,220,279 km (0.085 R)
• M12: 7,326,406 km (0.111 R)
• M13: 7,894,280 km (0.085 R)
• M14: 8,525,283 km (0.056 R)
• M15: 8,976,022 km (0.114 R)
• M16: 9,516,070 km (0.111 R)
• M17: 10,386,131 km (0.082 R)
• M18: 11,683,743 km (0.094 R)
• M19: 12,415,726 km (0.113 R)
• M20: 12,995,866 km (0.11 R)
• M21: 16,489,126 km (0.088 R)
• M22: 19,354,673 km (0.081 R)
• M23: 19,892,777 km (0.104 R)
• M24: 20,749,524 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 143.9

Radius: 3.7

Gravity: 10.51 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 5.79 AU - 7.65 AU

Year: 12024 Days

Day: 19.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 32,220,600 km

• M1: 58,044 km (0.103 R)
• M2: 259,852 km (0.112 R)
• M3: 665,411 km (0.094 R)
• M4: 830,717 km (0.08 R)
• M5: 1,042,099 km (0.095 R)
• M6: 1,223,411 km (0.112 R)
• M7: 1,547,141 km (0.091 R)
• M8: 3,301,924 km (0.038 R)
• M9: 3,537,990 km (0.076 R)
• M10: 3,808,163 km (0.077 R)
• M11: 4,492,125 km (0.116 R)
• M12: 5,516,721 km (0.094 R)
• M13: 7,788,514 km (0.105 R)
• M14: 9,809,880 km (0.077 R)
• M15: 11,034,638 km (0.113 R)
• M16: 12,408,844 km (0.102 R)
• M17: 16,151,484 km (0.088 R)
• M18: 16,830,209 km (0.12 R)
• M19: 21,379,480 km (0.066 R)
• M20: 23,423,137 km (0.091 R)
• M21: 25,925,909 km (0.104 R)
• M22: 29,959,218 km (0.116 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 461 - 17,799 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit