🌌 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: 0.54

Radius: 0.78

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.51 AU - 0.63 AU

Year: 274 Days

Day: 41.5 Hours

Environment

Temp: -129 °C

Axial Tilt: 6.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 41,469,614 km

• M1: 37,250 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.6

Radius: 9.5

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.58 AU - 0.8 AU

Year: 364 Days

Day: 14.1 Hours

Environment

Temp: -127 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 41,469,614 km

• M1: 118,182 km (0.052 R)
• M2: 459,714 km (0.102 R)
• M3: 778,358 km (0.027 R)
• M4: 1,104,780 km (0.1 R)
• M5: 1,628,822 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 993.6

Radius: 12.5

Gravity: 6.36 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.92 AU - 0.96 AU

Year: 579 Days

Day: 9 Hours

Environment

Temp: -157 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 41,469,614 km

• M1: 155,432 km (0.096 R)
• M2: 754,422 km (0.111 R)
• M3: 1,225,057 km (0.059 R)
• M4: 1,726,509 km (0.083 R)
• M5: 2,167,224 km (0.111 R)
• M6: 3,105,353 km (0.114 R)
• M7: 4,328,315 km (0.044 R)
• M8: 4,778,605 km (0.119 R)
• M9: 7,140,456 km (0.112 R)
• M10: 7,564,865 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.3

Radius: 13.7

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.15 AU - 1.27 AU

Year: 846 Days

Day: 13.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,469,614 km

• M1: 170,990 km (0.06 R)
• M2: 664,813 km (0.11 R)
• M3: 1,099,544 km (0.041 R)
• M4: 1,877,304 km (0.088 R)
• M5: 3,172,522 km (0.055 R)
• M6: 4,278,200 km (0.101 R)
• M7: 4,912,046 km (0.113 R)
• M8: 7,021,974 km (0.098 R)
• M9: 7,789,262 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566.9

Radius: 13.7

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 1.1 AU - 1.44 AU

Year: 910 Days

Day: 13.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,469,614 km

• M1: 170,392 km (0.087 R)
• M2: 664,514 km (0.088 R)
• M3: 1,592,918 km (0.1 R)
• M4: 2,258,778 km (0.055 R)
• M5: 3,118,218 km (0.073 R)
• M6: 3,660,211 km (0.055 R)
• M7: 4,154,632 km (0.119 R)
• M8: 5,260,460 km (0.093 R)
• M9: 5,813,523 km (0.098 R)
• M10: 6,575,574 km (0.118 R)
• M11: 7,356,774 km (0.047 R)
• M12: 7,854,636 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 777.6

Radius: 9.3

Gravity: 8.99 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.91 AU - 2.63 AU

Year: 2175 Days

Day: 9 Hours

Environment

Temp: -199 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 41,469,614 km

• M1: 115,639 km (0.101 R)
• M2: 960,867 km (0.109 R)
• M3: 1,427,762 km (0.118 R)
• M4: 1,752,838 km (0.077 R)
• M5: 2,102,598 km (0.119 R)
• M6: 2,527,007 km (0.118 R)
• M7: 4,035,253 km (0.091 R)
• M8: 5,233,981 km (0.051 R)
• M9: 5,641,037 km (0.09 R)
• M10: 6,491,650 km (0.109 R)
• M11: 6,821,364 km (0.105 R)
• M12: 8,381,819 km (0.095 R)
• M13: 9,383,377 km (0.058 R)
• M14: 12,234,114 km (0.097 R)
• M15: 14,380,993 km (0.101 R)
• M16: 15,616,671 km (0.039 R)
• M17: 15,961,195 km (0.058 R)
• M18: 16,665,352 km (0.089 R)
• M19: 17,024,986 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511

Radius: 8.9

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.96 AU - 3.24 AU

Year: 2666 Days

Day: 15 Hours

Environment

Temp: -194 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 41,469,614 km

• M1: 110,702 km (0.101 R)
• M2: 414,386 km (0.069 R)
• M3: 945,608 km (0.115 R)
• M4: 1,273,227 km (0.08 R)
• M5: 1,933,253 km (0.104 R)
• M6: 2,334,176 km (0.076 R)
• M7: 3,407,241 km (0.084 R)
• M8: 3,711,673 km (0.092 R)
• M9: 4,212,526 km (0.054 R)
• M10: 5,024,992 km (0.108 R)
• M11: 6,845,748 km (0.113 R)
• M12: 7,421,102 km (0.112 R)
• M13: 10,013,483 km (0.072 R)
• M14: 10,717,042 km (0.09 R)
• M15: 12,347,210 km (0.078 R)
• M16: 16,544,029 km (0.063 R)
• M17: 17,474,078 km (0.075 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 149.7

Radius: 11.2

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 3.03 AU - 3.31 AU

Year: 3589 Days

Day: 10.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 41,469,614 km

• M1: 142,118 km (0.106 R)
• M2: 648,806 km (0.08 R)
• M3: 1,209,200 km (0.069 R)
• M4: 3,664,849 km (0.098 R)
• M5: 5,220,966 km (0.074 R)
• M6: 5,756,975 km (0.118 R)
• M7: 6,280,418 km (0.099 R)
• M8: 6,913,366 km (0.091 R)
• M9: 8,698,368 km (0.09 R)
• M10: 12,095,287 km (0.119 R)
• M11: 12,955,475 km (0.027 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.3

Radius: 10.2

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 4.08 AU - 4.74 AU

Year: 5888 Days

Day: 7.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 41,469,614 km

• M1: 127,158 km (0.098 R)
• M2: 549,922 km (0.09 R)
• M3: 1,016,368 km (0.098 R)
• M4: 1,802,954 km (0.11 R)
• M5: 3,390,486 km (0.115 R)
• M6: 3,913,630 km (0.115 R)
• M7: 4,394,138 km (0.109 R)
• M8: 4,991,034 km (0.111 R)
• M9: 5,336,455 km (0.03 R)
• M10: 5,697,884 km (0.119 R)
• M11: 6,075,618 km (0.075 R)
• M12: 6,532,191 km (0.118 R)
• M13: 7,969,378 km (0.085 R)
• M14: 8,368,654 km (0.096 R)
• M15: 9,852,067 km (0.053 R)
• M16: 10,440,435 km (0.11 R)
• M17: 11,321,417 km (0.073 R)
• M18: 11,733,859 km (0.12 R)
• M19: 13,332,162 km (0.108 R)
• M20: 13,792,176 km (0.089 R)
• M21: 15,291,296 km (0.078 R)
• M22: 16,485,087 km (0.078 R)
• M23: 19,185,777 km (0.117 R)
• M24: 24,675,570 km (0.119 R)
• M25: 25,447,495 km (0.116 R)
• M26: 26,555,118 km (0.111 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 264.3

Radius: 4.2

Gravity: 14.98 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 6.78 AU - 8.14 AU

Year: 12955 Days

Day: 24.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 41,469,614 km

• M1: 52,359 km (0.107 R)
• M2: 281,842 km (0.066 R)
• M3: 511,475 km (0.119 R)
• M4: 653,892 km (0.108 R)
• M5: 1,227,301 km (0.07 R)
• M6: 1,968,558 km (0.082 R)
• M7: 2,184,279 km (0.117 R)
• M8: 2,415,856 km (0.093 R)
• M9: 7,094,529 km (0.12 R)
• M10: 11,321,866 km (0.108 R)
• M11: 13,481,461 km (0.101 R)
• M12: 14,688,865 km (0.059 R)
• M13: 27,419,794 km (0.118 R)
• M14: 36,925,242 km (0.096 R)
• M15: 40,974,558 km (0.064 R)
• M16: 41,345,560 km (0.103 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 301 - 20,131 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit