🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907

Radius: 10.1

Gravity: 8.89 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.69 AU - 0.83 AU

Year: 421 Days

Day: 11.3 Hours

Environment

Temp: -144 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 38,583,024 km

• M1: 125,662 km (0.093 R)
• M2: 442,062 km (0.105 R)
• M3: 855,999 km (0.095 R)
• M4: 1,205,160 km (0.052 R)
• M5: 1,786,348 km (0.071 R)
• M6: 2,447,571 km (0.113 R)
• M7: 3,420,855 km (0.106 R)
• M8: 4,030,017 km (0.102 R)
• M9: 5,037,708 km (0.032 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.7

Radius: 11.2

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.7 AU - 0.86 AU

Year: 438 Days

Day: 6.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 38,583,024 km

• M1: 139,276 km (0.055 R)
• M2: 490,980 km (0.059 R)
• M3: 915,539 km (0.119 R)
• M4: 1,366,577 km (0.115 R)
• M5: 1,760,917 km (0.094 R)
• M6: 2,278,675 km (0.1 R)
• M7: 2,696,651 km (0.081 R)
• M8: 3,067,654 km (0.098 R)
• M9: 3,483,386 km (0.063 R)
• M10: 3,925,299 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 667.7

Radius: 13.3

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.62 AU - 0.96 AU

Year: 446 Days

Day: 12.3 Hours

Environment

Temp: -139 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 38,583,024 km

• M1: 165,754 km (0.12 R)
• M2: 664,215 km (0.093 R)
• M3: 1,270,984 km (0.098 R)
• M4: 2,194,601 km (0.103 R)
• M5: 2,718,343 km (0.078 R)
• M6: 3,442,845 km (0.12 R)
• M7: 4,664,462 km (0.025 R)
• M8: 5,375,351 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.6

Radius: 12.7

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.86 AU - 1.26 AU

Year: 694 Days

Day: 12.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 38,583,024 km

• M1: 158,424 km (0.059 R)
• M2: 720,164 km (0.08 R)
• M3: 1,157,888 km (0.09 R)
• M4: 1,559,109 km (0.026 R)
• M5: 2,581,461 km (0.045 R)
• M6: 3,374,479 km (0.107 R)
• M7: 4,023,435 km (0.113 R)
• M8: 4,496,014 km (0.059 R)
• M9: 4,954,532 km (0.059 R)
• M10: 5,590,173 km (0.082 R)
• M11: 5,985,560 km (0.1 R)
• M12: 6,728,314 km (0.078 R)
• M13: 7,220,341 km (0.067 R)
• M14: 7,667,639 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 537.6

Radius: 8.6

Gravity: 7.27 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.03 AU - 1.55 AU

Year: 932 Days

Day: 9.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 38,583,024 km

• M1: 107,561 km (0.117 R)
• M2: 781,798 km (0.109 R)
• M3: 1,143,975 km (0.095 R)
• M4: 1,633,609 km (0.113 R)
• M5: 2,085,394 km (0.076 R)
• M6: 2,493,946 km (0.057 R)
• M7: 3,031,002 km (0.115 R)
• M8: 3,430,429 km (0.093 R)
• M9: 4,095,391 km (0.118 R)
• M10: 4,400,721 km (0.037 R)
• M11: 5,758,471 km (0.063 R)
• M12: 6,940,444 km (0.059 R)
• M13: 7,259,536 km (0.096 R)
• M14: 7,952,024 km (0.055 R)
• M15: 8,635,687 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 344.7

Radius: 11.3

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.18 AU - 1.74 AU

Year: 1122 Days

Day: 8.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 38,583,024 km

• M1: 140,622 km (0.074 R)
• M2: 801,097 km (0.106 R)
• M3: 1,154,746 km (0.107 R)
• M4: 1,537,717 km (0.057 R)
• M5: 1,932,804 km (0.081 R)
• M6: 2,836,376 km (0.108 R)
• M7: 4,186,945 km (0.064 R)
• M8: 6,334,273 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 794.2

Radius: 10.7

Gravity: 6.94 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 1.46 AU - 2.16 AU

Year: 1548 Days

Day: 14.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 38,583,024 km

• M1: 139,126 km (0.11 R)
• M2: 855,849 km (0.102 R)
• M3: 1,309,131 km (0.065 R)
• M4: 1,784,553 km (0.083 R)
• M5: 3,446,885 km (0.091 R)
• M6: 3,975,563 km (0.12 R)
• M7: 4,440,514 km (0.073 R)
• M8: 5,615,306 km (0.104 R)
• M9: 6,448,267 km (0.066 R)
• M10: 6,881,652 km (0.106 R)
• M11: 7,637,869 km (0.107 R)
• M12: 9,803,896 km (0.077 R)
• M13: 13,714,834 km (0.068 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 305.9

Radius: 15

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 4.01 AU - 4.85 AU

Year: 5928 Days

Day: 11.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 38,583,024 km

• M1: 187,297 km (0.062 R)
• M2: 793,318 km (0.059 R)
• M3: 1,296,565 km (0.06 R)
• M4: 1,968,708 km (0.12 R)
• M5: 2,685,132 km (0.083 R)
• M6: 3,395,124 km (0.065 R)
• M7: 4,410,893 km (0.049 R)
• M8: 5,220,816 km (0.092 R)
• M9: 5,703,419 km (0.045 R)
• M10: 6,915,610 km (0.069 R)
• M11: 8,473,223 km (0.09 R)
• M12: 9,028,830 km (0.092 R)
• M13: 10,213,346 km (0.076 R)
• M14: 11,233,753 km (0.117 R)
• M15: 11,768,864 km (0.075 R)
• M16: 12,556,198 km (0.03 R)
• M17: 13,181,816 km (0.089 R)
• M18: 17,798,855 km (0.106 R)
• M19: 18,837,065 km (0.039 R)
• M20: 20,967,189 km (0.105 R)
• M21: 21,575,005 km (0.078 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 252.2

Radius: 4.4

Gravity: 13.03 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 6 AU - 8.1 AU

Year: 11902 Days

Day: 21.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 38,583,024 km

• M1: 55,052 km (0.102 R)
• M2: 302,636 km (0.111 R)
• M3: 517,459 km (0.118 R)
• M4: 1,147,864 km (0.098 R)
• M5: 1,439,281 km (0.109 R)
• M6: 2,119,203 km (0.087 R)
• M7: 2,502,024 km (0.05 R)
• M8: 2,828,447 km (0.079 R)
• M9: 3,033,246 km (0.086 R)
• M10: 3,707,933 km (0.077 R)
• M11: 5,105,626 km (0.107 R)
• M12: 6,121,545 km (0.101 R)
• M13: 7,227,522 km (0.034 R)
• M14: 7,455,958 km (0.119 R)
• M15: 8,211,427 km (0.116 R)
• M16: 11,956,759 km (0.118 R)
• M17: 12,222,744 km (0.101 R)
• M18: 12,656,728 km (0.05 R)
• M19: 12,877,385 km (0.096 R)
• M20: 14,375,458 km (0.041 R)
• M21: 15,415,462 km (0.059 R)
• M22: 16,050,206 km (0.109 R)
• M23: 16,967,690 km (0.076 R)
• M24: 17,507,439 km (0.117 R)
• M25: 18,198,132 km (0.116 R)
• M26: 18,692,254 km (0.081 R)
• M27: 23,300,766 km (0.095 R)
• M28: 27,033,233 km (0.11 R)
• M29: 35,436,444 km (0.088 R)
• M30: 37,779,596 km (0.036 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 524 - 12,265 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit