🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.89

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.59 AU - 0.69 AU

Year: 336 Days

Day: 41.5 Hours

Environment

Temp: -123 °C

Axial Tilt: 3.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573

Radius: 11.9

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.73 AU - 0.79 AU

Year: 435 Days

Day: 14.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 35,163,200 km

• M1: 147,952 km (0.108 R)
• M2: 568,173 km (0.026 R)
• M3: 989,590 km (0.065 R)
• M4: 1,689,409 km (0.045 R)
• M5: 2,288,548 km (0.104 R)
• M6: 2,868,689 km (0.12 R)
• M7: 4,590,710 km (0.094 R)
• M8: 5,062,542 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.4

Radius: 11.7

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.52 AU - 1.94 AU

Year: 1493 Days

Day: 5.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 35,163,200 km

• M1: 145,708 km (0.108 R)
• M2: 583,880 km (0.073 R)
• M3: 1,004,699 km (0.078 R)
• M4: 1,446,911 km (0.096 R)
• M5: 1,856,061 km (0.098 R)
• M6: 2,864,051 km (0.095 R)
• M7: 3,548,761 km (0.084 R)
• M8: 4,322,930 km (0.112 R)
• M9: 5,600,047 km (0.103 R)
• M10: 6,271,442 km (0.1 R)
• M11: 6,717,842 km (0.118 R)
• M12: 7,137,763 km (0.1 R)
• M13: 7,550,504 km (0.06 R)
• M14: 8,693,132 km (0.059 R)
• M15: 9,192,490 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 640.5

Radius: 8.6

Gravity: 8.66 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 2.09 AU - 2.37 AU

Year: 2185 Days

Day: 13.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 35,163,200 km

• M1: 107,710 km (0.047 R)
• M2: 403,914 km (0.05 R)
• M3: 1,026,690 km (0.075 R)
• M4: 2,034,381 km (0.103 R)
• M5: 2,752,451 km (0.105 R)
• M6: 3,420,406 km (0.094 R)
• M7: 4,311,261 km (0.103 R)
• M8: 4,682,713 km (0.109 R)
• M9: 5,608,873 km (0.12 R)
• M10: 6,256,482 km (0.091 R)
• M11: 6,925,334 km (0.059 R)
• M12: 8,093,544 km (0.111 R)
• M13: 9,085,378 km (0.084 R)
• M14: 11,897,070 km (0.04 R)
• M15: 12,880,227 km (0.083 R)
• M16: 14,364,388 km (0.101 R)
• M17: 16,301,830 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 209.2

Radius: 12.5

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 2.31 AU - 2.33 AU

Year: 2318 Days

Day: 7.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 35,163,200 km

• M1: 155,731 km (0.118 R)
• M2: 825,780 km (0.079 R)
• M3: 1,251,237 km (0.109 R)
• M4: 2,017,626 km (0.067 R)
• M5: 2,453,555 km (0.082 R)
• M6: 3,307,908 km (0.088 R)
• M7: 3,853,940 km (0.091 R)
• M8: 4,514,265 km (0.114 R)
• M9: 5,127,916 km (0.116 R)
• M10: 5,710,001 km (0.109 R)
• M11: 6,689,418 km (0.104 R)
• M12: 8,074,395 km (0.041 R)
• M13: 9,010,130 km (0.047 R)
• M14: 9,458,774 km (0.086 R)
• M15: 10,465,867 km (0.082 R)
• M16: 11,370,186 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.8

Radius: 9.8

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 2.06 AU - 3.28 AU

Year: 2862 Days

Day: 8.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,163,200 km

• M1: 121,922 km (0.113 R)
• M2: 492,027 km (0.059 R)
• M3: 1,102,836 km (0.099 R)
• M4: 1,461,272 km (0.06 R)
• M5: 2,154,060 km (0.086 R)
• M6: 3,424,146 km (0.119 R)
• M7: 3,754,159 km (0.072 R)
• M8: 4,105,414 km (0.083 R)
• M9: 4,601,182 km (0.06 R)
• M10: 6,204,272 km (0.095 R)
• M11: 7,673,623 km (0.09 R)
• M12: 8,211,427 km (0.052 R)
• M13: 9,734,633 km (0.032 R)
• M14: 11,591,591 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 581.9

Radius: 10.4

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 3.01 AU - 3.47 AU

Year: 3826 Days

Day: 13.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 35,163,200 km

• M1: 129,402 km (0.067 R)
• M2: 746,493 km (0.043 R)
• M3: 1,132,157 km (0.106 R)
• M4: 1,497,774 km (0.109 R)
• M5: 2,980,438 km (0.109 R)
• M6: 4,796,108 km (0.104 R)
• M7: 5,556,963 km (0.074 R)
• M8: 5,910,761 km (0.066 R)
• M9: 6,484,768 km (0.045 R)
• M10: 8,048,515 km (0.067 R)
• M11: 9,462,215 km (0.119 R)
• M12: 12,542,136 km (0.071 R)
• M13: 13,441,967 km (0.111 R)
• M14: 13,784,097 km (0.103 R)
• M15: 16,847,563 km (0.071 R)
• M16: 17,825,035 km (0.062 R)
• M17: 19,892,926 km (0.105 R)
• M18: 22,662,282 km (0.068 R)
• M19: 23,710,664 km (0.064 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.9

Radius: 10.9

Gravity: 6.79 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 3.74 AU - 4.32 AU

Year: 5307 Days

Day: 10.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 35,163,200 km

• M1: 135,536 km (0.068 R)
• M2: 621,579 km (0.079 R)
• M3: 1,400,386 km (0.116 R)
• M4: 1,992,195 km (0.106 R)
• M5: 2,744,822 km (0.073 R)
• M6: 4,071,456 km (0.104 R)
• M7: 4,890,354 km (0.114 R)
• M8: 6,650,523 km (0.108 R)
• M9: 7,273,897 km (0.114 R)
• M10: 8,962,259 km (0.119 R)
• M11: 10,804,407 km (0.114 R)
• M12: 11,519,634 km (0.119 R)
• M13: 13,150,850 km (0.101 R)
• M14: 14,873,020 km (0.104 R)
• M15: 15,939,504 km (0.11 R)
• M16: 17,828,925 km (0.071 R)
• M17: 19,444,731 km (0.07 R)
• M18: 23,120,501 km (0.045 R)
• M19: 24,147,191 km (0.097 R)
• M20: 25,702,111 km (0.091 R)
• M21: 27,322,555 km (0.112 R)
• M22: 27,936,505 km (0.115 R)
• M23: 33,183,351 km (0.115 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 597.6

Radius: 11.9

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 4.02 AU - 5.42 AU

Year: 6727 Days

Day: 12.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 35,163,200 km

• M1: 148,551 km (0.064 R)
• M2: 656,585 km (0.084 R)
• M3: 1,284,597 km (0.079 R)
• M4: 2,971,014 km (0.068 R)
• M5: 3,424,594 km (0.044 R)
• M6: 3,948,187 km (0.108 R)
• M7: 5,157,087 km (0.083 R)
• M8: 5,692,349 km (0.087 R)
• M9: 6,701,087 km (0.09 R)
• M10: 7,266,567 km (0.085 R)
• M11: 7,787,168 km (0.043 R)
• M12: 8,737,712 km (0.101 R)
• M13: 10,398,847 km (0.094 R)
• M14: 10,964,776 km (0.107 R)
• M15: 14,684,976 km (0.107 R)
• M16: 15,098,016 km (0.11 R)
• M17: 16,510,219 km (0.055 R)
• M18: 17,543,342 km (0.073 R)
• M19: 19,809,600 km (0.106 R)
• M20: 21,651,749 km (0.06 R)
• M21: 24,172,922 km (0.049 R)
• M22: 26,101,836 km (0.08 R)
• M23: 28,494,804 km (0.099 R)
• M24: 29,417,075 km (0.115 R)
• M25: 33,306,171 km (0.065 R)
• M26: 33,917,727 km (0.106 R)
• M27: 34,432,942 km (0.102 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 277 - 17,164 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit