🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 618.3

Radius: 9.6

Gravity: 6.71 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.4 AU - 0.66 AU

Year: 262 Days

Day: 8.5 Hours

Environment

Temp: -134 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 75,518,378 km

• M1: 119,379 km (0.097 R)
• M2: 447,896 km (0.074 R)
• M3: 1,001,558 km (0.085 R)
• M4: 1,354,758 km (0.095 R)
• M5: 1,667,717 km (0.036 R)
• M6: 2,103,496 km (0.106 R)
• M7: 2,468,814 km (0.048 R)
• M8: 2,784,016 km (0.103 R)
• M9: 3,136,020 km (0.064 R)
• M10: 3,626,402 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.4

Radius: 13.5

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.51 AU - 0.83 AU

Year: 372 Days

Day: 11.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 75,518,378 km

• M1: 173,384 km (0.068 R)
• M2: 754,422 km (0.088 R)
• M3: 1,366,427 km (0.084 R)
• M4: 1,904,530 km (0.057 R)
• M5: 2,340,608 km (0.098 R)
• M6: 2,861,957 km (0.114 R)
• M7: 3,650,038 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.9

Radius: 12.7

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.13 AU - 1.25 AU

Year: 880 Days

Day: 5.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 75,518,378 km

• M1: 157,975 km (0.065 R)
• M2: 1,304,793 km (0.03 R)
• M3: 1,727,107 km (0.085 R)
• M4: 2,321,310 km (0.098 R)
• M5: 4,188,142 km (0.105 R)
• M6: 4,810,768 km (0.048 R)
• M7: 5,349,470 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 765.1

Radius: 12.6

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.31 AU - 2.19 AU

Year: 1570 Days

Day: 7.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 75,518,378 km

• M1: 167,849 km (0.111 R)
• M2: 775,815 km (0.1 R)
• M3: 1,351,617 km (0.102 R)
• M4: 2,336,868 km (0.079 R)
• M5: 3,892,537 km (0.115 R)
• M6: 5,590,472 km (0.073 R)
• M7: 6,441,984 km (0.058 R)
• M8: 7,216,003 km (0.08 R)
• M9: 7,879,170 km (0.034 R)
• M10: 8,918,726 km (0.102 R)
• M11: 9,423,469 km (0.109 R)
• M12: 10,490,401 km (0.112 R)
• M13: 13,550,276 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 961

Radius: 14.3

Gravity: 4.7 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.68 AU - 2.3 AU

Year: 1904 Days

Day: 13.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 75,518,378 km

• M1: 185,501 km (0.11 R)
• M2: 662,120 km (0.073 R)
• M3: 1,165,667 km (0.108 R)
• M4: 1,727,107 km (0.049 R)
• M5: 2,707,422 km (0.063 R)
• M6: 3,248,967 km (0.104 R)
• M7: 3,733,963 km (0.092 R)
• M8: 4,287,475 km (0.047 R)
• M9: 5,118,491 km (0.096 R)
• M10: 5,779,564 km (0.119 R)
• M11: 6,443,928 km (0.099 R)
• M12: 7,273,448 km (0.114 R)
• M13: 8,110,897 km (0.115 R)
• M14: 10,450,309 km (0.116 R)
• M15: 11,166,733 km (0.049 R)
• M16: 11,755,251 km (0.081 R)
• M17: 12,323,274 km (0.059 R)
• M18: 14,002,660 km (0.099 R)
• M19: 16,928,794 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.5

Radius: 9.7

Gravity: 8.53 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 2.12 AU - 2.52 AU

Year: 2397 Days

Day: 14.8 Hours

Environment

Temp: -195 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 75,518,378 km

• M1: 120,725 km (0.041 R)
• M2: 514,916 km (0.042 R)
• M3: 855,700 km (0.096 R)
• M4: 1,175,540 km (0.111 R)
• M5: 1,608,028 km (0.11 R)
• M6: 2,171,114 km (0.07 R)
• M7: 2,499,332 km (0.118 R)
• M8: 2,892,475 km (0.107 R)
• M9: 4,264,138 km (0.119 R)
• M10: 4,805,981 km (0.09 R)
• M11: 6,186,321 km (0.061 R)
• M12: 6,852,480 km (0.095 R)
• M13: 7,474,059 km (0.106 R)
• M14: 8,727,540 km (0.104 R)
• M15: 9,386,668 km (0.066 R)
• M16: 9,819,754 km (0.119 R)
• M17: 10,190,906 km (0.085 R)
• M18: 10,921,841 km (0.088 R)
• M19: 13,190,493 km (0.066 R)
• M20: 14,198,932 km (0.096 R)
• M21: 15,061,663 km (0.092 R)
• M22: 16,111,840 km (0.119 R)
• M23: 16,891,245 km (0.053 R)
• M24: 19,207,768 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656

Radius: 10.1

Gravity: 6.43 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 5.01 AU - 5.11 AU

Year: 7720 Days

Day: 10.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 75,518,378 km

• M1: 125,662 km (0.106 R)
• M2: 477,217 km (0.051 R)
• M3: 846,574 km (0.094 R)
• M4: 1,261,260 km (0.104 R)
• M5: 1,944,174 km (0.1 R)
• M6: 2,283,312 km (0.061 R)
• M7: 2,877,365 km (0.107 R)
• M8: 3,618,324 km (0.117 R)
• M9: 4,266,980 km (0.067 R)
• M10: 4,903,669 km (0.082 R)
• M11: 6,612,525 km (0.091 R)
• M12: 7,388,639 km (0.107 R)
• M13: 11,111,083 km (0.12 R)
• M14: 13,145,913 km (0.096 R)
• M15: 14,013,730 km (0.077 R)
• M16: 15,292,044 km (0.09 R)
• M17: 16,514,259 km (0.034 R)
• M18: 17,047,874 km (0.109 R)
• M19: 20,647,648 km (0.086 R)
• M20: 21,189,042 km (0.102 R)
• M21: 22,543,352 km (0.106 R)
• M22: 23,869,836 km (0.032 R)
• M23: 26,586,833 km (0.069 R)
• M24: 28,255,597 km (0.06 R)
• M25: 29,115,635 km (0.119 R)
• M26: 29,993,176 km (0.043 R)
• M27: 34,322,389 km (0.093 R)
• M28: 36,411,075 km (0.09 R)
• M29: 39,641,491 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 501.6

Radius: 4.9

Gravity: 20.89 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 8.17 AU - 12.85 AU

Year: 23110 Days

Day: 17.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 75,518,378 km

• M1: 62,831 km (0.076 R)
• M2: 267,930 km (0.102 R)
• M3: 523,443 km (0.091 R)
• M4: 790,176 km (0.075 R)
• M5: 967,150 km (0.079 R)
• M6: 1,481,169 km (0.055 R)
• M7: 1,735,186 km (0.067 R)
• M8: 1,958,984 km (0.082 R)
• M9: 4,072,054 km (0.098 R)
• M10: 7,405,693 km (0.083 R)
• M11: 8,992,926 km (0.072 R)
• M12: 9,549,879 km (0.089 R)
• M13: 9,836,808 km (0.115 R)
• M14: 12,546,773 km (0.044 R)
• M15: 14,707,565 km (0.095 R)
• M16: 15,479,640 km (0.088 R)
• M17: 22,251,486 km (0.119 R)
• M18: 26,277,016 km (0.091 R)
• M19: 31,514,138 km (0.11 R)
• M20: 33,184,996 km (0.113 R)
• M21: 34,913,899 km (0.064 R)
• M22: 36,423,192 km (0.028 R)
• M23: 48,391,770 km (0.111 R)
• M24: 54,157,720 km (0.095 R)
• M25: 63,135,537 km (0.077 R)
• M26: 64,145,323 km (0.103 R)
• M27: 75,518,352 km (0.109 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 494 - 18,847 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit