🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1

Radius: 1

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.57 AU - 0.63 AU

Year: 305 Days

Day: 22.4 Hours

Environment

Temp: -122 °C

Axial Tilt: 15.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 73,964,509 km

• M1: 329,415 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.9

Radius: 10.2

Gravity: 6.11 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.65 AU - 1.01 AU

Year: 496 Days

Day: 14.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 73,964,509 km

• M1: 127,607 km (0.047 R)
• M2: 450,439 km (0.083 R)
• M3: 872,604 km (0.057 R)
• M4: 1,242,560 km (0.1 R)
• M5: 1,666,221 km (0.12 R)
• M6: 2,020,918 km (0.114 R)
• M7: 2,407,030 km (0.074 R)
• M8: 2,799,724 km (0.119 R)
• M9: 3,317,782 km (0.074 R)
• M10: 3,638,370 km (0.092 R)
• M11: 4,075,196 km (0.06 R)
• M12: 5,102,484 km (0.114 R)
• M13: 5,447,307 km (0.105 R)
• M14: 6,294,181 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 546.1

Radius: 13

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.13 AU - 1.21 AU

Year: 830 Days

Day: 8.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 73,964,509 km

• M1: 161,715 km (0.08 R)
• M2: 581,936 km (0.112 R)
• M3: 1,056,460 km (0.112 R)
• M4: 1,755,531 km (0.111 R)
• M5: 2,546,904 km (0.115 R)
• M6: 3,245,526 km (0.105 R)
• M7: 3,689,981 km (0.079 R)
• M8: 4,267,878 km (0.095 R)
• M9: 4,905,613 km (0.107 R)
• M10: 5,365,477 km (0.102 R)
• M11: 5,834,915 km (0.096 R)
• M12: 6,372,720 km (0.117 R)
• M13: 6,792,192 km (0.062 R)
• M14: 7,275,094 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 359.4

Radius: 12.5

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.8 AU - 1.84 AU

Year: 1611 Days

Day: 14.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 73,964,509 km

• M1: 155,432 km (0.044 R)
• M2: 564,882 km (0.119 R)
• M3: 1,072,018 km (0.041 R)
• M4: 1,566,589 km (0.095 R)
• M5: 2,138,053 km (0.092 R)
• M6: 3,327,805 km (0.078 R)
• M7: 3,912,732 km (0.116 R)
• M8: 7,261,181 km (0.109 R)
• M9: 7,692,472 km (0.108 R)
• M10: 8,606,814 km (0.09 R)
• M11: 9,119,486 km (0.09 R)
• M12: 9,532,227 km (0.116 R)
• M13: 9,988,201 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.4

Radius: 13.5

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.57 AU - 2.11 AU

Year: 1637 Days

Day: 6.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 73,964,509 km

• M1: 167,998 km (0.101 R)
• M2: 647,160 km (0.082 R)
• M3: 1,125,275 km (0.063 R)
• M4: 1,657,694 km (0.038 R)
• M5: 2,654,913 km (0.069 R)
• M6: 3,081,267 km (0.114 R)
• M7: 4,147,900 km (0.099 R)
• M8: 5,650,312 km (0.12 R)
• M9: 6,289,543 km (0.051 R)
• M10: 6,716,496 km (0.079 R)
• M11: 7,434,565 km (0.107 R)
• M12: 7,855,384 km (0.038 R)
• M13: 9,374,551 km (0.103 R)
• M14: 11,263,373 km (0.069 R)
• M15: 12,828,017 km (0.061 R)
• M16: 13,600,541 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590.9

Radius: 8.2

Gravity: 8.79 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.5 AU - 2.4 AU

Year: 1786 Days

Day: 9.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 73,964,509 km

• M1: 102,475 km (0.099 R)
• M2: 542,591 km (0.082 R)
• M3: 800,797 km (0.087 R)
• M4: 1,174,343 km (0.078 R)
• M5: 1,792,631 km (0.085 R)
• M6: 2,377,409 km (0.095 R)
• M7: 3,038,482 km (0.112 R)
• M8: 3,379,865 km (0.103 R)
• M9: 3,746,978 km (0.094 R)
• M10: 5,808,137 km (0.097 R)
• M11: 6,460,234 km (0.059 R)
• M12: 7,027,061 km (0.07 R)
• M13: 7,570,699 km (0.083 R)
• M14: 8,318,988 km (0.05 R)
• M15: 10,335,717 km (0.106 R)
• M16: 10,789,148 km (0.079 R)
• M17: 11,183,189 km (0.076 R)
• M18: 11,475,653 km (0.092 R)
• M19: 11,999,993 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.5

Radius: 9.5

Gravity: 8.4 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 3.53 AU - 3.53 AU

Year: 4351 Days

Day: 12.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 73,964,509 km

• M1: 118,182 km (0.098 R)
• M2: 530,025 km (0.061 R)
• M3: 853,456 km (0.111 R)
• M4: 1,184,217 km (0.118 R)
• M5: 2,860,162 km (0.083 R)
• M6: 3,879,522 km (0.039 R)
• M7: 4,363,471 km (0.111 R)
• M8: 5,071,069 km (0.099 R)
• M9: 7,174,564 km (0.119 R)
• M10: 7,656,269 km (0.09 R)
• M11: 8,013,509 km (0.111 R)
• M12: 8,494,466 km (0.095 R)
• M13: 9,192,191 km (0.096 R)
• M14: 11,376,918 km (0.078 R)
• M15: 13,729,943 km (0.094 R)
• M16: 17,165,458 km (0.113 R)
• M17: 18,216,533 km (0.119 R)
• M18: 21,135,337 km (0.092 R)
• M19: 21,485,695 km (0.089 R)
• M20: 22,125,974 km (0.094 R)
• M21: 26,724,014 km (0.099 R)
• M22: 27,051,484 km (0.036 R)
• M23: 28,303,468 km (0.112 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 838.3

Radius: 12.2

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 2.86 AU - 4.34 AU

Year: 4481 Days

Day: 13 Hours

Environment

Temp: -203 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 73,964,509 km

• M1: 156,479 km (0.053 R)
• M2: 658,829 km (0.118 R)
• M3: 1,244,804 km (0.073 R)
• M4: 1,896,452 km (0.104 R)
• M5: 2,946,928 km (0.118 R)
• M6: 3,863,215 km (0.117 R)
• M7: 4,674,784 km (0.042 R)
• M8: 5,482,313 km (0.07 R)
• M9: 6,255,435 km (0.086 R)
• M10: 7,236,348 km (0.025 R)
• M11: 9,379,188 km (0.067 R)
• M12: 10,842,704 km (0.09 R)
• M13: 11,629,290 km (0.119 R)
• M14: 12,158,118 km (0.06 R)
• M15: 13,161,022 km (0.074 R)
• M16: 13,682,670 km (0.076 R)
• M17: 14,381,442 km (0.104 R)
• M18: 14,991,203 km (0.073 R)
• M19: 18,431,355 km (0.084 R)
• M20: 19,350,634 km (0.115 R)
• M21: 20,997,408 km (0.112 R)
• M22: 25,359,831 km (0.113 R)
• M23: 26,250,387 km (0.03 R)
• M24: 27,922,891 km (0.108 R)
• M25: 28,959,904 km (0.093 R)
• M26: 29,843,578 km (0.107 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 123.6

Radius: 7.4

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 6.56 AU - 9.88 AU

Year: 15460 Days

Day: 15.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 73,964,509 km

• M1: 92,003 km (0.083 R)
• M2: 368,160 km (0.103 R)
• M3: 698,024 km (0.084 R)
• M4: 1,057,657 km (0.081 R)
• M5: 2,201,931 km (0.052 R)
• M6: 3,211,268 km (0.078 R)
• M7: 4,187,693 km (0.097 R)
• M8: 4,499,904 km (0.061 R)
• M9: 5,379,091 km (0.103 R)
• M10: 9,167,507 km (0.075 R)
• M11: 9,561,398 km (0.091 R)
• M12: 10,571,932 km (0.101 R)
• M13: 10,859,459 km (0.102 R)
• M14: 11,350,290 km (0.063 R)
• M15: 11,907,243 km (0.1 R)
• M16: 14,552,582 km (0.072 R)
• M17: 17,234,273 km (0.103 R)
• M18: 19,431,716 km (0.085 R)
• M19: 21,809,574 km (0.107 R)
• M20: 22,276,021 km (0.056 R)
• M21: 26,337,902 km (0.083 R)
• M22: 28,960,652 km (0.097 R)
• M23: 29,429,791 km (0.1 R)
• M24: 32,351,736 km (0.103 R)
• M25: 33,675,977 km (0.097 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 447.9

Radius: 7.9

Gravity: 7.18 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 9.21 AU - 12.65 AU

Year: 23705 Days

Day: 16.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 73,964,509 km

• M1: 98,286 km (0.11 R)
• M2: 357,689 km (0.101 R)
• M3: 689,197 km (0.108 R)
• M4: 1,119,441 km (0.12 R)
• M5: 2,153,013 km (0.105 R)
• M6: 2,407,030 km (0.071 R)
• M7: 2,900,254 km (0.116 R)
• M8: 3,515,849 km (0.11 R)
• M9: 3,900,764 km (0.097 R)
• M10: 4,446,348 km (0.069 R)
• M11: 9,057,253 km (0.052 R)
• M12: 11,409,381 km (0.104 R)
• M13: 12,055,644 km (0.068 R)
• M14: 13,634,200 km (0.116 R)
• M15: 17,787,935 km (0.045 R)
• M16: 20,477,555 km (0.055 R)
• M17: 21,142,069 km (0.064 R)
• M18: 23,632,873 km (0.108 R)
• M19: 24,681,853 km (0.038 R)
• M20: 27,899,105 km (0.1 R)
• M21: 29,308,467 km (0.1 R)
• M22: 32,523,774 km (0.116 R)
• M23: 37,073,195 km (0.096 R)
• M24: 38,919,232 km (0.062 R)
• M25: 39,208,555 km (0.056 R)
• M26: 48,571,885 km (0.102 R)
• M27: 56,684,279 km (0.095 R)
• M28: 57,804,767 km (0.053 R)
• M29: 59,513,025 km (0.118 R)
• M30: 60,283,005 km (0.09 R)
• M31: 66,064,963 km (0.119 R)
• M32: 68,141,381 km (0.092 R)
• M33: 68,772,684 km (0.091 R)
• M34: 70,475,407 km (0.12 R)
• M35: 73,301,760 km (0.114 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 172 - 17,369 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit