🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.12

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.53 AU - 0.57 AU

Year: 263 Days

Day: 13.9 Hours

Environment

Temp: -121 °C

Axial Tilt: 33.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 27,067,682 km

• M1: 228,286 km (0.072 R)

Asteroid Belt

Center: 0.81 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 874.5

Radius: 11

Gravity: 7.23 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.96 AU - 1.18 AU

Year: 715 Days

Day: 9.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 27,067,682 km

• M1: 136,732 km (0.038 R)
• M2: 628,311 km (0.081 R)
• M3: 1,052,271 km (0.067 R)
• M4: 1,412,802 km (0.119 R)
• M5: 1,994,289 km (0.091 R)
• M6: 2,416,006 km (0.047 R)
• M7: 2,824,707 km (0.108 R)
• M8: 3,961,950 km (0.102 R)
• M9: 4,584,128 km (0.07 R)
• M10: 5,457,031 km (0.055 R)
• M11: 6,105,089 km (0.073 R)
• M12: 7,768,917 km (0.11 R)
• M13: 8,692,833 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942.7

Radius: 10.4

Gravity: 8.72 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.38 AU - 1.62 AU

Year: 1186 Days

Day: 10.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 27,067,682 km

• M1: 129,402 km (0.072 R)
• M2: 591,360 km (0.107 R)
• M3: 1,259,764 km (0.097 R)
• M4: 2,343,151 km (0.087 R)
• M5: 2,733,003 km (0.11 R)
• M6: 3,485,331 km (0.107 R)
• M7: 3,842,870 km (0.084 R)
• M8: 4,845,774 km (0.044 R)
• M9: 5,209,447 km (0.117 R)
• M10: 5,767,148 km (0.041 R)
• M11: 6,106,585 km (0.088 R)
• M12: 6,531,742 km (0.064 R)
• M13: 7,494,405 km (0.09 R)
• M14: 7,954,568 km (0.11 R)
• M15: 8,578,092 km (0.098 R)
• M16: 8,991,580 km (0.117 R)
• M17: 11,579,922 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 94.2

Radius: 11.8

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.31 AU - 2.15 AU

Year: 1469 Days

Day: 14.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,067,682 km

• M1: 146,756 km (0.102 R)
• M2: 531,521 km (0.105 R)
• M3: 1,116,748 km (0.088 R)
• M4: 1,998,328 km (0.102 R)
• M5: 2,529,401 km (0.047 R)
• M6: 3,285,020 km (0.036 R)
• M7: 3,987,830 km (0.087 R)
• M8: 4,772,621 km (0.12 R)
• M9: 5,782,406 km (0.113 R)
• M10: 6,281,016 km (0.059 R)
• M11: 6,728,314 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.2

Radius: 10.3

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 2.12 AU - 3.26 AU

Year: 2849 Days

Day: 10.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 27,067,682 km

• M1: 130,001 km (0.046 R)
• M2: 552,615 km (0.066 R)
• M3: 2,233,795 km (0.026 R)
• M4: 2,744,223 km (0.085 R)
• M5: 3,131,383 km (0.106 R)
• M6: 3,885,356 km (0.081 R)
• M7: 4,305,726 km (0.04 R)
• M8: 5,002,553 km (0.068 R)
• M9: 6,054,226 km (0.117 R)
• M10: 6,458,589 km (0.079 R)
• M11: 7,397,166 km (0.107 R)
• M12: 8,045,074 km (0.118 R)
• M13: 8,479,207 km (0.106 R)
• M14: 8,871,902 km (0.097 R)
• M15: 9,937,936 km (0.102 R)
• M16: 10,565,948 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.9

Radius: 12.3

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 3.22 AU - 3.78 AU

Year: 4228 Days

Day: 14.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 27,067,682 km

• M1: 153,338 km (0.082 R)
• M2: 695,780 km (0.088 R)
• M3: 1,079,049 km (0.06 R)
• M4: 1,945,072 km (0.078 R)
• M5: 2,419,746 km (0.037 R)
• M6: 3,211,717 km (0.098 R)
• M7: 3,946,242 km (0.059 R)
• M8: 4,641,274 km (0.094 R)
• M9: 6,930,720 km (0.112 R)
• M10: 7,493,507 km (0.117 R)
• M11: 11,084,903 km (0.041 R)
• M12: 14,226,010 km (0.062 R)
• M13: 16,662,061 km (0.1 R)
• M14: 17,978,971 km (0.035 R)
• M15: 22,559,957 km (0.06 R)
• M16: 23,797,730 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852

Radius: 14.4

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.66 AU - 4.43 AU

Year: 4301 Days

Day: 14.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 27,067,682 km

• M1: 188,194 km (0.031 R)
• M2: 668,852 km (0.103 R)
• M3: 1,126,622 km (0.096 R)
• M4: 1,657,694 km (0.119 R)
• M5: 2,598,365 km (0.117 R)
• M6: 3,133,028 km (0.083 R)
• M7: 3,938,463 km (0.065 R)
• M8: 4,826,775 km (0.048 R)
• M9: 5,305,339 km (0.091 R)
• M10: 6,739,833 km (0.103 R)
• M11: 7,617,972 km (0.067 R)
• M12: 9,156,437 km (0.091 R)
• M13: 13,247,490 km (0.047 R)
• M14: 14,680,637 km (0.078 R)
• M15: 16,569,909 km (0.083 R)
• M16: 17,791,226 km (0.111 R)
• M17: 19,600,612 km (0.108 R)
• M18: 24,269,711 km (0.119 R)
• M19: 27,317,768 km (0.108 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.2

Radius: 9.8

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 4.96 AU - 5.48 AU

Year: 7701 Days

Day: 12.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 27,067,682 km

• M1: 124,615 km (0.086 R)
• M2: 482,752 km (0.108 R)
• M3: 951,293 km (0.093 R)
• M4: 1,269,188 km (0.099 R)
• M5: 1,607,878 km (0.037 R)
• M6: 2,455,799 km (0.077 R)
• M7: 3,253,305 km (0.066 R)
• M8: 4,391,595 km (0.091 R)
• M9: 6,156,700 km (0.072 R)
• M10: 9,214,930 km (0.096 R)
• M11: 10,273,335 km (0.119 R)
• M12: 11,361,659 km (0.061 R)
• M13: 16,366,755 km (0.117 R)
• M14: 18,384,232 km (0.043 R)
• M15: 18,861,898 km (0.118 R)
• M16: 26,880,643 km (0.084 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 60.7

Radius: 3.4

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 6.86 AU - 8.88 AU

Year: 14255 Days

Day: 16.2 Hours

Environment

Temp: -236 °C

Axial Tilt: 120.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 27,067,682 km

• M1: 43,832 km (0.091 R)
• M2: 194,627 km (0.115 R)
• M3: 303,384 km (0.114 R)
• M4: 715,078 km (0.077 R)
• M5: 855,251 km (0.074 R)
• M6: 1,049,279 km (0.119 R)
• M7: 1,657,694 km (0.098 R)
• M8: 3,755,206 km (0.08 R)
• M9: 4,489,731 km (0.119 R)
• M10: 4,612,551 km (0.117 R)
• M11: 6,026,999 km (0.053 R)
• M12: 9,193,388 km (0.113 R)
• M13: 12,916,579 km (0.086 R)
• M14: 13,366,869 km (0.118 R)
• M15: 14,140,290 km (0.103 R)
• M16: 15,607,097 km (0.091 R)
• M17: 16,348,055 km (0.108 R)
• M18: 16,522,337 km (0.109 R)
• M19: 16,697,965 km (0.078 R)
• M20: 18,023,252 km (0.037 R)
• M21: 18,774,982 km (0.079 R)
• M22: 21,293,163 km (0.07 R)
• M23: 25,869,661 km (0.066 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 246 - 16,072 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit