🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.93

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.57 AU - 0.65 AU

Year: 308 Days

Day: 40.9 Hours

Environment

Temp: -129 °C

Axial Tilt: 14.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 558.1

Radius: 12.8

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.64 AU - 0.92 AU

Year: 445 Days

Day: 6.8 Hours

Environment

Temp: -142 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 49,023,846 km

• M1: 159,322 km (0.102 R)
• M2: 611,855 km (0.082 R)
• M3: 1,067,680 km (0.102 R)
• M4: 1,590,674 km (0.073 R)
• M5: 2,040,365 km (0.055 R)
• M6: 2,613,624 km (0.047 R)
• M7: 3,148,138 km (0.084 R)
• M8: 4,034,954 km (0.114 R)
• M9: 4,608,662 km (0.114 R)
• M10: 5,112,507 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527.2

Radius: 8

Gravity: 8.24 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.7 AU - 1.12 AU

Year: 561 Days

Day: 13.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 49,023,846 km

• M1: 99,483 km (0.072 R)
• M2: 350,657 km (0.047 R)
• M3: 700,118 km (0.115 R)
• M4: 984,952 km (0.082 R)
• M5: 1,335,311 km (0.051 R)
• M6: 1,675,795 km (0.111 R)
• M7: 2,004,462 km (0.106 R)
• M8: 2,281,368 km (0.116 R)
• M9: 3,258,092 km (0.118 R)
• M10: 3,643,157 km (0.092 R)
• M11: 4,003,089 km (0.093 R)
• M12: 5,461,818 km (0.099 R)
• M13: 5,773,730 km (0.042 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839.1

Radius: 14.1

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.26 AU - 1.6 AU

Year: 1104 Days

Day: 9.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,023,846 km

• M1: 175,478 km (0.058 R)
• M2: 959,371 km (0.113 R)
• M3: 1,628,971 km (0.066 R)
• M4: 2,973,706 km (0.092 R)
• M5: 3,442,995 km (0.028 R)
• M6: 4,497,510 km (0.053 R)
• M7: 4,964,256 km (0.106 R)
• M8: 5,714,938 km (0.04 R)
• M9: 6,218,783 km (0.067 R)
• M10: 7,938,860 km (0.111 R)
• M11: 9,802,999 km (0.072 R)
• M12: 11,086,399 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 281.3

Radius: 9.6

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.4 AU - 1.6 AU

Year: 1186 Days

Day: 12.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,023,846 km

• M1: 119,379 km (0.117 R)
• M2: 446,849 km (0.107 R)
• M3: 817,552 km (0.047 R)
• M4: 1,129,464 km (0.09 R)
• M5: 1,951,504 km (0.083 R)
• M6: 2,374,268 km (0.074 R)
• M7: 2,704,879 km (0.062 R)
• M8: 3,272,005 km (0.116 R)
• M9: 3,711,972 km (0.105 R)
• M10: 4,643,668 km (0.071 R)
• M11: 5,647,170 km (0.092 R)
• M12: 6,179,888 km (0.067 R)
• M13: 7,322,816 km (0.101 R)
• M14: 7,932,577 km (0.108 R)
• M15: 8,601,279 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.7

Radius: 14.3

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 3 AU - 3.18 AU

Year: 3507 Days

Day: 8.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 49,023,846 km

• M1: 177,872 km (0.102 R)
• M2: 864,975 km (0.111 R)
• M3: 1,445,863 km (0.1 R)
• M4: 1,915,750 km (0.05 R)
• M5: 2,459,688 km (0.112 R)
• M6: 2,918,056 km (0.042 R)
• M7: 3,433,870 km (0.1 R)
• M8: 4,356,440 km (0.09 R)
• M9: 4,840,837 km (0.101 R)
• M10: 5,386,870 km (0.113 R)
• M11: 6,935,058 km (0.107 R)
• M12: 8,166,697 km (0.03 R)
• M13: 8,620,129 km (0.084 R)
• M14: 10,977,641 km (0.041 R)
• M15: 13,933,396 km (0.095 R)
• M16: 14,889,326 km (0.118 R)
• M17: 16,988,035 km (0.046 R)
• M18: 20,273,653 km (0.11 R)
• M19: 21,043,184 km (0.1 R)
• M20: 22,777,473 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370.5

Radius: 14.9

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 2.62 AU - 3.7 AU

Year: 3627 Days

Day: 9.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 49,023,846 km

• M1: 185,352 km (0.105 R)
• M2: 938,427 km (0.107 R)
• M3: 1,664,127 km (0.085 R)
• M4: 2,267,605 km (0.07 R)
• M5: 3,048,954 km (0.05 R)
• M6: 3,567,311 km (0.042 R)
• M7: 4,185,599 km (0.025 R)
• M8: 5,539,310 km (0.112 R)
• M9: 6,076,965 km (0.111 R)
• M10: 6,593,377 km (0.04 R)
• M11: 8,519,748 km (0.088 R)
• M12: 9,415,690 km (0.1 R)
• M13: 10,072,275 km (0.093 R)
• M14: 11,395,767 km (0.084 R)
• M15: 13,412,646 km (0.052 R)
• M16: 15,308,500 km (0.115 R)
• M17: 16,372,739 km (0.092 R)
• M18: 17,703,262 km (0.118 R)
• M19: 19,104,845 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 308.7

Radius: 6.3

Gravity: 7.78 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 5.72 AU - 6.9 AU

Year: 10234 Days

Day: 17.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 49,023,846 km

• M1: 78,389 km (0.107 R)
• M2: 274,512 km (0.036 R)
• M3: 474,973 km (0.069 R)
• M4: 931,396 km (0.112 R)
• M5: 1,177,186 km (0.086 R)
• M6: 1,830,480 km (0.089 R)
• M7: 2,270,596 km (0.115 R)
• M8: 2,837,572 km (0.053 R)
• M9: 3,039,380 km (0.114 R)
• M10: 4,300,939 km (0.076 R)
• M11: 4,568,121 km (0.086 R)
• M12: 5,717,631 km (0.082 R)
• M13: 6,376,609 km (0.106 R)
• M14: 7,307,407 km (0.093 R)
• M15: 7,766,224 km (0.094 R)
• M16: 8,615,192 km (0.078 R)
• M17: 10,543,957 km (0.12 R)
• M18: 11,080,116 km (0.096 R)
• M19: 12,689,041 km (0.079 R)
• M20: 16,883,017 km (0.117 R)
• M21: 19,290,047 km (0.094 R)
• M22: 21,373,347 km (0.116 R)
• M23: 21,605,074 km (0.073 R)
• M24: 22,231,291 km (0.098 R)
• M25: 23,274,437 km (0.08 R)
• M26: 24,182,496 km (0.119 R)
• M27: 25,285,630 km (0.1 R)
• M28: 30,131,554 km (0.084 R)
• M29: 36,987,026 km (0.068 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 362

Radius: 7.1

Gravity: 7.18 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 7 AU - 9.4 AU

Year: 15161 Days

Day: 18.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 49,023,846 km

• M1: 88,562 km (0.074 R)
• M2: 317,596 km (0.1 R)
• M3: 554,410 km (0.105 R)
• M4: 2,024,957 km (0.12 R)
• M5: 2,450,563 km (0.077 R)
• M6: 2,695,454 km (0.041 R)
• M7: 3,140,209 km (0.098 R)
• M8: 3,505,078 km (0.118 R)
• M9: 4,290,916 km (0.041 R)
• M10: 5,457,031 km (0.098 R)
• M11: 7,434,117 km (0.102 R)
• M12: 9,102,731 km (0.112 R)
• M13: 10,788,849 km (0.09 R)
• M14: 11,061,267 km (0.116 R)
• M15: 11,394,421 km (0.116 R)
• M16: 12,915,532 km (0.096 R)
• M17: 15,170,720 km (0.076 R)
• M18: 20,526,773 km (0.11 R)
• M19: 21,030,020 km (0.086 R)
• M20: 26,131,008 km (0.1 R)
• M21: 30,783,801 km (0.079 R)
• M22: 32,676,214 km (0.096 R)
• M23: 35,839,012 km (0.093 R)
• M24: 43,311,725 km (0.068 R)
• M25: 44,977,647 km (0.114 R)
• M26: 48,732,554 km (0.073 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 141.5

Radius: 6.6

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 10.41 AU - 11.09 AU

Year: 22758 Days

Day: 24.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 49,023,846 km

• M1: 82,279 km (0.069 R)
• M2: 348,862 km (0.103 R)
• M3: 1,263,354 km (0.112 R)
• M4: 2,940,795 km (0.095 R)
• M5: 4,308,269 km (0.068 R)
• M6: 4,753,323 km (0.055 R)
• M7: 5,427,261 km (0.109 R)
• M8: 6,650,972 km (0.088 R)
• M9: 7,576,534 km (0.077 R)
• M10: 8,048,365 km (0.101 R)
• M11: 8,631,049 km (0.107 R)
• M12: 11,136,365 km (0.11 R)
• M13: 15,200,939 km (0.077 R)
• M14: 20,978,109 km (0.111 R)
• M15: 22,512,834 km (0.025 R)
• M16: 23,218,338 km (0.073 R)
• M17: 27,067,042 km (0.065 R)
• M18: 28,677,613 km (0.119 R)
• M19: 28,883,310 km (0.059 R)
• M20: 38,943,019 km (0.089 R)
• M21: 39,958,938 km (0.039 R)
• M22: 46,854,352 km (0.101 R)
• M23: 47,426,415 km (0.115 R)
• M24: 48,877,215 km (0.049 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: 521 - 16,809 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit