🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.18

Radius: 1.07

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.49 AU - 0.77 AU

Year: 328 Days

Day: 31.4 Hours

Environment

Temp: -133 °C

Axial Tilt: 34.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 20,040,304 km

• M1: 303,983 km (0.056 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 894.6

Radius: 13.6

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.6 AU - 0.76 AU

Year: 368 Days

Day: 13.5 Hours

Environment

Temp: -128 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 20,040,304 km

• M1: 171,439 km (0.107 R)
• M2: 601,084 km (0.083 R)
• M3: 1,040,304 km (0.117 R)
• M4: 1,522,906 km (0.11 R)
• M5: 1,985,313 km (0.114 R)
• M6: 2,777,883 km (0.101 R)
• M7: 3,214,709 km (0.108 R)
• M8: 3,673,226 km (0.051 R)
• M9: 4,578,592 km (0.06 R)
• M10: 5,177,882 km (0.079 R)
• M11: 5,778,218 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 305.4

Radius: 8.7

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.61 AU - 0.91 AU

Year: 435 Days

Day: 7.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 20,040,304 km

• M1: 108,458 km (0.074 R)
• M2: 736,620 km (0.098 R)
• M3: 1,151,156 km (0.099 R)
• M4: 1,540,858 km (0.073 R)
• M5: 1,987,258 km (0.109 R)
• M6: 2,387,432 km (0.057 R)
• M7: 2,662,094 km (0.112 R)
• M8: 2,997,792 km (0.087 R)
• M9: 3,361,614 km (0.101 R)
• M10: 4,228,833 km (0.074 R)
• M11: 4,500,203 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 335.4

Radius: 12.9

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.83 AU - 1.09 AU

Year: 617 Days

Day: 11.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 20,040,304 km

• M1: 160,519 km (0.081 R)
• M2: 662,719 km (0.08 R)
• M3: 1,206,507 km (0.066 R)
• M4: 2,649,977 km (0.116 R)
• M5: 3,278,587 km (0.087 R)
• M6: 3,759,993 km (0.097 R)
• M7: 4,988,191 km (0.054 R)
• M8: 5,561,899 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567

Radius: 9.4

Gravity: 6.42 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.82 AU - 1.26 AU

Year: 696 Days

Day: 5.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 20,040,304 km

• M1: 118,482 km (0.073 R)
• M2: 430,094 km (0.115 R)
• M3: 725,550 km (0.112 R)
• M4: 1,099,694 km (0.032 R)
• M5: 1,633,160 km (0.092 R)
• M6: 2,081,954 km (0.093 R)
• M7: 2,699,194 km (0.104 R)
• M8: 3,069,150 km (0.105 R)
• M9: 3,841,075 km (0.111 R)
• M10: 4,235,116 km (0.041 R)
• M11: 4,672,091 km (0.05 R)
• M12: 5,401,530 km (0.085 R)
• M13: 6,443,180 km (0.087 R)
• M14: 6,874,321 km (0.062 R)
• M15: 7,434,715 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291

Radius: 8.2

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.9 AU - 1.2 AU

Year: 706 Days

Day: 14.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 20,040,304 km

• M1: 102,026 km (0.116 R)
• M2: 463,753 km (0.049 R)
• M3: 722,408 km (0.105 R)
• M4: 982,708 km (0.052 R)
• M5: 1,764,058 km (0.103 R)
• M6: 2,151,217 km (0.026 R)
• M7: 2,437,099 km (0.062 R)
• M8: 3,165,940 km (0.045 R)
• M9: 4,411,791 km (0.085 R)
• M10: 4,768,731 km (0.103 R)
• M11: 5,659,736 km (0.046 R)
• M12: 5,938,736 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 973.4

Radius: 11.7

Gravity: 7.11 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.04 AU - 1.6 AU

Year: 995 Days

Day: 13.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 20,040,304 km

• M1: 147,055 km (0.056 R)
• M2: 548,725 km (0.083 R)
• M3: 927,208 km (0.038 R)
• M4: 1,385,426 km (0.1 R)
• M5: 1,894,956 km (0.032 R)
• M6: 3,057,032 km (0.079 R)
• M7: 5,260,310 km (0.11 R)
• M8: 5,651,060 km (0.106 R)
• M9: 6,105,388 km (0.093 R)
• M10: 6,725,471 km (0.088 R)
• M11: 7,386,993 km (0.038 R)
• M12: 8,363,718 km (0.119 R)
• M13: 9,187,703 km (0.109 R)
• M14: 9,695,588 km (0.101 R)
• M15: 10,285,153 km (0.102 R)
• M16: 10,800,069 km (0.112 R)
• M17: 11,197,550 km (0.05 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914

Radius: 9.5

Gravity: 10.13 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.61 AU - 2.57 AU

Year: 1982 Days

Day: 7.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 20,040,304 km

• M1: 118,182 km (0.113 R)
• M2: 457,321 km (0.114 R)
• M3: 806,333 km (0.049 R)
• M4: 1,127,220 km (0.117 R)
• M5: 1,796,820 km (0.03 R)
• M6: 2,201,931 km (0.056 R)
• M7: 3,418,461 km (0.093 R)
• M8: 3,778,244 km (0.065 R)
• M9: 5,454,039 km (0.094 R)
• M10: 6,283,260 km (0.093 R)
• M11: 7,022,423 km (0.088 R)
• M12: 8,478,011 km (0.094 R)
• M13: 10,016,176 km (0.079 R)
• M14: 10,756,386 km (0.113 R)
• M15: 12,345,714 km (0.117 R)
• M16: 13,904,972 km (0.116 R)
• M17: 14,406,425 km (0.113 R)
• M18: 16,585,018 km (0.101 R)
• M19: 16,942,707 km (0.032 R)
• M20: 17,673,343 km (0.086 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.6

Radius: 14

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.77 AU - 2.53 AU

Year: 2068 Days

Day: 9.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 20,040,304 km

• M1: 174,132 km (0.04 R)
• M2: 610,210 km (0.056 R)
• M3: 1,178,083 km (0.079 R)
• M4: 2,425,131 km (0.09 R)
• M5: 2,868,689 km (0.061 R)
• M6: 3,562,673 km (0.063 R)
• M7: 4,521,446 km (0.113 R)
• M8: 5,009,285 km (0.104 R)
• M9: 7,055,185 km (0.076 R)
• M10: 7,601,816 km (0.085 R)
• M11: 8,088,607 km (0.107 R)
• M12: 8,904,664 km (0.111 R)
• M13: 9,808,235 km (0.087 R)
• M14: 11,095,076 km (0.105 R)
• M15: 11,535,791 km (0.069 R)
• M16: 12,413,183 km (0.084 R)
• M17: 12,968,939 km (0.097 R)

Planet 10 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 565.5

Radius: 13.3

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 2.19 AU - 3.29 AU

Year: 2975 Days

Day: 8.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 174.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 20,040,304 km

• M1: 261,347 km (0.029 R)
• M2: 974,481 km (0.075 R)
• M3: 1,485,656 km (0.12 R)
• M4: 2,000,722 km (0.109 R)
• M5: 2,446,823 km (0.095 R)
• M6: 3,025,019 km (0.092 R)
• M7: 3,731,120 km (0.107 R)
• M8: 6,387,231 km (0.085 R)
• M9: 7,739,296 km (0.048 R)
• M10: 8,685,054 km (0.102 R)
• M11: 10,845,546 km (0.077 R)
• M12: 11,488,518 km (0.031 R)
• M13: 14,414,054 km (0.074 R)
• M14: 15,490,860 km (0.064 R)
• M15: 19,391,624 km (0.094 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: 391 - 19,455 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit