🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.14

Radius: 1.05

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.53 AU - 0.57 AU

Year: 263 Days

Day: 24.3 Hours

Environment

Temp: -129 °C

Axial Tilt: 35.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 0.88 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652.2

Radius: 9.9

Gravity: 6.65 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.02 AU - 1.4 AU

Year: 859 Days

Day: 11.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,586,179 km

• M1: 123,269 km (0.084 R)
• M2: 454,628 km (0.087 R)
• M3: 770,728 km (0.079 R)
• M4: 1,324,988 km (0.098 R)
• M5: 1,638,695 km (0.097 R)
• M6: 2,367,087 km (0.107 R)
• M7: 2,739,735 km (0.1 R)
• M8: 3,794,400 km (0.091 R)
• M9: 4,291,664 km (0.108 R)
• M10: 5,416,640 km (0.086 R)
• M11: 6,445,873 km (0.06 R)
• M12: 6,905,587 km (0.094 R)
• M13: 8,189,137 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.4

Radius: 13

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.58 AU - 1.96 AU

Year: 1520 Days

Day: 11.3 Hours

Environment

Temp: -185 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,586,179 km

• M1: 163,211 km (0.106 R)
• M2: 1,080,396 km (0.088 R)
• M3: 1,592,619 km (0.076 R)
• M4: 2,546,006 km (0.103 R)
• M5: 5,424,568 km (0.117 R)
• M6: 5,974,041 km (0.075 R)
• M7: 7,277,338 km (0.068 R)
• M8: 7,751,563 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 962.9

Radius: 9.8

Gravity: 10.03 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 1.68 AU - 2.6 AU

Year: 2021 Days

Day: 7.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 44,586,179 km

• M1: 123,717 km (0.091 R)
• M2: 499,806 km (0.094 R)
• M3: 1,271,432 km (0.094 R)
• M4: 1,992,943 km (0.077 R)
• M5: 3,161,751 km (0.108 R)
• M6: 3,470,820 km (0.085 R)
• M7: 3,875,931 km (0.071 R)
• M8: 4,715,624 km (0.102 R)
• M9: 5,213,935 km (0.053 R)
• M10: 6,396,356 km (0.102 R)
• M11: 7,065,208 km (0.03 R)
• M12: 7,934,671 km (0.055 R)
• M13: 9,042,892 km (0.102 R)
• M14: 9,528,188 km (0.118 R)
• M15: 9,921,630 km (0.058 R)
• M16: 12,178,015 km (0.058 R)
• M17: 12,856,291 km (0.094 R)
• M18: 14,994,793 km (0.063 R)
• M19: 15,774,048 km (0.114 R)
• M20: 16,579,932 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.5

Radius: 11.4

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 3.1 AU - 3.66 AU

Year: 4012 Days

Day: 11.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 44,586,179 km

• M1: 141,968 km (0.119 R)
• M2: 587,321 km (0.047 R)
• M3: 1,059,602 km (0.096 R)
• M4: 1,541,756 km (0.063 R)
• M5: 3,454,813 km (0.111 R)
• M6: 5,480,817 km (0.076 R)
• M7: 7,539,583 km (0.087 R)
• M8: 8,318,240 km (0.11 R)
• M9: 13,904,823 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287

Radius: 11.4

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 4.14 AU - 5.56 AU

Year: 6896 Days

Day: 10.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 44,586,179 km

• M1: 141,819 km (0.112 R)
• M2: 503,247 km (0.106 R)
• M3: 1,217,427 km (0.101 R)
• M4: 1,599,052 km (0.055 R)
• M5: 2,205,521 km (0.084 R)
• M6: 2,817,975 km (0.108 R)
• M7: 4,172,584 km (0.062 R)
• M8: 4,776,211 km (0.064 R)
• M9: 8,077,537 km (0.098 R)
• M10: 9,452,641 km (0.085 R)
• M11: 9,819,604 km (0.067 R)
• M12: 10,978,090 km (0.083 R)
• M13: 11,383,800 km (0.064 R)
• M14: 12,710,733 km (0.1 R)
• M15: 13,360,586 km (0.099 R)
• M16: 14,191,004 km (0.08 R)
• M17: 16,710,830 km (0.108 R)
• M18: 17,369,510 km (0.115 R)
• M19: 20,111,938 km (0.117 R)
• M20: 21,691,392 km (0.088 R)
• M21: 22,403,328 km (0.117 R)
• M22: 25,643,469 km (0.12 R)
• M23: 26,198,925 km (0.078 R)
• M24: 26,762,461 km (0.049 R)
• M25: 27,747,263 km (0.07 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 139.3

Radius: 10.9

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 4.71 AU - 5.63 AU

Year: 7590 Days

Day: 10.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 44,586,179 km

• M1: 138,976 km (0.083 R)
• M2: 816,954 km (0.106 R)
• M3: 1,187,657 km (0.116 R)
• M4: 1,730,997 km (0.098 R)
• M5: 2,317,570 km (0.079 R)
• M6: 2,779,379 km (0.099 R)
• M7: 5,428,458 km (0.088 R)
• M8: 6,219,831 km (0.092 R)
• M9: 7,696,511 km (0.073 R)
• M10: 8,481,601 km (0.089 R)
• M11: 11,116,618 km (0.094 R)
• M12: 11,852,191 km (0.093 R)
• M13: 13,420,724 km (0.074 R)
• M14: 14,710,407 km (0.092 R)
• M15: 17,419,774 km (0.109 R)
• M16: 19,318,770 km (0.056 R)
• M17: 23,106,139 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 454.3

Radius: 5.1

Gravity: 17.47 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 5.4 AU - 8.58 AU

Year: 11932 Days

Day: 21.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 44,586,179 km

• M1: 63,579 km (0.07 R)
• M2: 225,145 km (0.047 R)
• M3: 450,439 km (0.092 R)
• M4: 696,528 km (0.087 R)
• M5: 1,083,388 km (0.1 R)
• M6: 1,782,010 km (0.072 R)
• M7: 2,236,339 km (0.115 R)
• M8: 2,520,275 km (0.105 R)
• M9: 3,091,590 km (0.09 R)
• M10: 3,542,777 km (0.071 R)
• M11: 4,229,730 km (0.066 R)
• M12: 6,147,575 km (0.1 R)
• M13: 7,094,679 km (0.093 R)
• M14: 8,266,778 km (0.104 R)
• M15: 8,760,601 km (0.056 R)
• M16: 10,411,563 km (0.066 R)
• M17: 12,316,841 km (0.114 R)
• M18: 12,960,561 km (0.085 R)
• M19: 16,240,794 km (0.079 R)
• M20: 16,943,006 km (0.074 R)
• M21: 19,404,041 km (0.094 R)
• M22: 19,875,723 km (0.096 R)
• M23: 22,435,492 km (0.119 R)
• M24: 25,957,026 km (0.036 R)
• M25: 27,502,521 km (0.111 R)
• M26: 28,599,971 km (0.083 R)
• M27: 28,904,253 km (0.091 R)
• M28: 31,740,928 km (0.114 R)
• M29: 31,958,144 km (0.027 R)
• M30: 33,844,723 km (0.07 R)
• M31: 34,185,208 km (0.118 R)
• M32: 39,695,496 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 266.2

Radius: 3.9

Gravity: 17.5 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 8.94 AU - 10.52 AU

Year: 19597 Days

Day: 24 Hours

Environment

Temp: -232 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 44,586,179 km

• M1: 49,218 km (0.105 R)
• M2: 195,524 km (0.074 R)
• M3: 352,004 km (0.078 R)
• M4: 479,760 km (0.12 R)
• M5: 663,616 km (0.086 R)
• M6: 824,135 km (0.115 R)
• M7: 1,149,809 km (0.111 R)
• M8: 1,275,771 km (0.102 R)
• M9: 1,482,216 km (0.058 R)
• M10: 2,455,799 km (0.031 R)
• M11: 2,731,657 km (0.068 R)
• M12: 3,196,009 km (0.112 R)
• M13: 3,875,931 km (0.105 R)
• M14: 4,220,156 km (0.041 R)
• M15: 4,369,455 km (0.094 R)
• M16: 5,135,994 km (0.102 R)
• M17: 7,567,558 km (0.029 R)
• M18: 7,743,784 km (0.109 R)
• M19: 16,508,723 km (0.111 R)
• M20: 17,332,858 km (0.118 R)
• M21: 17,949,201 km (0.067 R)
• M22: 19,885,596 km (0.086 R)
• M23: 20,646,451 km (0.093 R)
• M24: 25,721,409 km (0.101 R)
• M25: 29,025,727 km (0.117 R)
• M26: 35,963,029 km (0.118 R)
• M27: 39,152,755 km (0.105 R)
• M28: 40,345,648 km (0.094 R)
• M29: 41,154,225 km (0.107 R)
• M30: 46,087,663 km (0.059 R)
• M31: 47,566,289 km (0.111 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 117.9

Radius: 3.6

Gravity: 9.1 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 8.88 AU - 11.9 AU

Year: 21624 Days

Day: 17 Hours

Environment

Temp: -235 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 44,586,179 km

• M1: 44,730 km (0.072 R)
• M2: 204,351 km (0.086 R)
• M3: 340,784 km (0.037 R)
• M4: 707,897 km (0.092 R)
• M5: 827,575 km (0.078 R)
• M6: 1,108,819 km (0.108 R)
• M7: 1,602,193 km (0.116 R)
• M8: 1,970,952 km (0.116 R)
• M9: 3,047,757 km (0.064 R)
• M10: 3,321,222 km (0.112 R)
• M11: 3,890,891 km (0.073 R)
• M12: 7,741,839 km (0.118 R)
• M13: 8,250,173 km (0.077 R)
• M14: 9,859,397 km (0.113 R)
• M15: 11,503,478 km (0.067 R)
• M16: 12,164,401 km (0.052 R)
• M17: 12,276,899 km (0.034 R)
• M18: 12,850,307 km (0.115 R)
• M19: 13,202,610 km (0.105 R)
• M20: 15,453,759 km (0.091 R)
• M21: 17,300,994 km (0.102 R)
• M22: 25,421,017 km (0.083 R)
• M23: 27,495,490 km (0.101 R)
• M24: 29,883,970 km (0.058 R)
• M25: 34,502,954 km (0.085 R)
• M26: 35,641,244 km (0.051 R)
• M27: 38,475,226 km (0.097 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: 172 - 14,735 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit