🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.6

Radius: 0.82

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.54 AU - 0.6 AU

Year: 282 Days

Day: 17.9 Hours

Environment

Temp: -130 °C

Axial Tilt: 1.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 597.9

Radius: 10

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.75 AU - 1.21 AU

Year: 636 Days

Day: 12 Hours

Environment

Temp: -160 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,015,309 km

• M1: 124,615 km (0.081 R)
• M2: 453,730 km (0.111 R)
• M3: 989,590 km (0.096 R)
• M4: 1,628,672 km (0.076 R)
• M5: 2,235,142 km (0.082 R)
• M6: 2,618,112 km (0.079 R)
• M7: 3,401,257 km (0.086 R)
• M8: 3,785,574 km (0.074 R)
• M9: 4,563,483 km (0.061 R)
• M10: 5,049,227 km (0.043 R)
• M11: 5,658,988 km (0.113 R)
• M12: 6,239,578 km (0.077 R)
• M13: 7,067,751 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 526

Radius: 10.8

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.44 AU - 1.84 AU

Year: 1378 Days

Day: 8.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 36,015,309 km

• M1: 134,339 km (0.101 R)
• M2: 546,481 km (0.106 R)
• M3: 973,583 km (0.107 R)
• M4: 1,406,370 km (0.091 R)
• M5: 1,761,814 km (0.086 R)
• M6: 2,323,255 km (0.118 R)
• M7: 2,761,577 km (0.092 R)
• M8: 3,662,455 km (0.072 R)
• M9: 4,155,679 km (0.05 R)
• M10: 4,600,135 km (0.104 R)
• M11: 5,884,432 km (0.07 R)
• M12: 6,262,765 km (0.101 R)
• M13: 7,019,132 km (0.112 R)
• M14: 8,656,780 km (0.091 R)
• M15: 9,933,299 km (0.054 R)
• M16: 10,374,762 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291.2

Radius: 8.8

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.12 AU - 2.9 AU

Year: 2609 Days

Day: 7.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 36,015,309 km

• M1: 110,852 km (0.117 R)
• M2: 454,628 km (0.063 R)
• M3: 930,050 km (0.114 R)
• M4: 1,458,130 km (0.054 R)
• M5: 1,734,737 km (0.089 R)
• M6: 2,222,875 km (0.108 R)
• M7: 2,539,424 km (0.114 R)
• M8: 2,857,170 km (0.118 R)
• M9: 3,992,169 km (0.107 R)
• M10: 4,385,162 km (0.063 R)
• M11: 4,722,057 km (0.111 R)
• M12: 5,162,024 km (0.074 R)
• M13: 6,270,993 km (0.098 R)
• M14: 6,571,535 km (0.077 R)
• M15: 9,015,665 km (0.077 R)
• M16: 10,301,758 km (0.115 R)
• M17: 11,519,335 km (0.119 R)
• M18: 12,395,680 km (0.038 R)
• M19: 12,710,733 km (0.086 R)
• M20: 13,480,414 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.5

Radius: 11.6

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 3.72 AU - 6.16 AU

Year: 7203 Days

Day: 11.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 60.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,015,309 km

• M1: 144,362 km (0.107 R)
• M2: 548,127 km (0.099 R)
• M3: 912,098 km (0.086 R)
• M4: 1,447,359 km (0.038 R)
• M5: 2,787,008 km (0.07 R)
• M6: 3,316,435 km (0.063 R)
• M7: 4,044,378 km (0.102 R)
• M8: 4,651,746 km (0.09 R)
• M9: 5,107,271 km (0.101 R)
• M10: 5,620,242 km (0.072 R)
• M11: 6,593,227 km (0.114 R)
• M12: 7,675,119 km (0.042 R)
• M13: 8,240,599 km (0.113 R)
• M14: 9,218,670 km (0.115 R)
• M15: 9,655,047 km (0.111 R)
• M16: 11,136,514 km (0.109 R)
• M17: 14,492,144 km (0.118 R)
• M18: 16,198,906 km (0.083 R)
• M19: 20,008,117 km (0.113 R)
• M20: 20,405,898 km (0.083 R)
• M21: 21,285,683 km (0.067 R)
• M22: 26,068,626 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 408.2

Radius: 12.2

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 4.4 AU - 6.62 AU

Year: 8485 Days

Day: 5.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,015,309 km

• M1: 151,692 km (0.091 R)
• M2: 741,706 km (0.051 R)
• M3: 1,342,491 km (0.103 R)
• M4: 1,845,290 km (0.104 R)
• M5: 3,197,355 km (0.111 R)
• M6: 3,913,181 km (0.12 R)
• M7: 4,386,958 km (0.054 R)
• M8: 6,748,510 km (0.116 R)
• M9: 7,966,535 km (0.091 R)
• M10: 9,992,390 km (0.038 R)
• M11: 10,834,177 km (0.084 R)
• M12: 11,321,866 km (0.12 R)
• M13: 12,981,804 km (0.094 R)
• M14: 16,205,339 km (0.118 R)
• M15: 17,366,966 km (0.055 R)
• M16: 17,833,413 km (0.11 R)
• M17: 18,791,437 km (0.087 R)
• M18: 19,927,932 km (0.082 R)
• M19: 22,181,774 km (0.097 R)
• M20: 30,051,968 km (0.092 R)
• M21: 32,703,291 km (0.108 R)
• M22: 33,312,903 km (0.047 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 57.8

Radius: 4.3

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 6.89 AU - 6.97 AU

Year: 11968 Days

Day: 21.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,015,309 km

• M1: 561,441 km (0.111 R)
• M2: 3,965,989 km (0.116 R)
• M3: 4,250,524 km (0.057 R)
• M4: 5,770,887 km (0.081 R)
• M5: 6,576,921 km (0.112 R)
• M6: 8,878,933 km (0.057 R)
• M7: 10,556,374 km (0.093 R)
• M8: 11,274,144 km (0.113 R)
• M9: 16,221,795 km (0.066 R)
• M10: 18,405,475 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 764.7

Radius: 8

Gravity: 11.95 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 6.64 AU - 8.06 AU

Year: 13072 Days

Day: 15.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 36,015,309 km

• M1: 99,483 km (0.057 R)
• M2: 371,003 km (0.114 R)
• M3: 821,592 km (0.036 R)
• M4: 1,347,278 km (0.049 R)
• M5: 1,685,818 km (0.072 R)
• M6: 2,891,577 km (0.079 R)
• M7: 3,512,708 km (0.118 R)
• M8: 5,579,851 km (0.07 R)
• M9: 7,429,180 km (0.073 R)
• M10: 10,974,949 km (0.086 R)
• M11: 14,107,079 km (0.061 R)
• M12: 19,936,609 km (0.06 R)
• M13: 29,806,628 km (0.032 R)
• M14: 39,993,944 km (0.06 R)
• M15: 40,542,968 km (0.091 R)
• M16: 43,797,619 km (0.11 R)
• M17: 46,614,397 km (0.084 R)
• M18: 50,501,698 km (0.077 R)
• M19: 58,560,834 km (0.095 R)
• M20: 58,914,035 km (0.12 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 100.1

Radius: 5.9

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 6.6 AU - 10.94 AU

Year: 17038 Days

Day: 19.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 36,015,309 km

• M1: 73,602 km (0.079 R)
• M2: 352,303 km (0.096 R)
• M3: 820,844 km (0.102 R)
• M4: 1,083,089 km (0.113 R)
• M5: 1,330,075 km (0.103 R)
• M6: 1,821,055 km (0.056 R)
• M7: 2,092,725 km (0.071 R)
• M8: 2,717,296 km (0.065 R)
• M9: 2,931,071 km (0.119 R)
• M10: 3,852,744 km (0.1 R)
• M11: 4,073,101 km (0.048 R)
• M12: 4,841,137 km (0.116 R)
• M13: 8,639,277 km (0.07 R)
• M14: 8,975,274 km (0.032 R)
• M15: 9,583,988 km (0.032 R)
• M16: 10,786,904 km (0.104 R)
• M17: 12,243,688 km (0.047 R)
• M18: 14,637,852 km (0.106 R)
• M19: 15,115,369 km (0.054 R)
• M20: 15,851,091 km (0.119 R)
• M21: 18,064,691 km (0.085 R)
• M22: 26,275,071 km (0.049 R)
• M23: 33,284,030 km (0.106 R)
• M24: 35,907,528 km (0.067 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 516 - 11,212 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit