🌌 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: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.48 AU - 0.74 AU

Year: 308 Days

Day: 21.6 Hours

Environment

Temp: -120 °C

Axial Tilt: 33.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.65 AU - 0.69 AU

Year: 354 Days

Day: 21.3 Hours

Environment

Temp: -132 °C

Axial Tilt: 25.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 843.1

Radius: 13.9

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.73 AU - 1.21 AU

Year: 617 Days

Day: 6.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,557,366 km

• M1: 172,935 km (0.031 R)
• M2: 617,091 km (0.102 R)
• M3: 1,276,219 km (0.119 R)
• M4: 1,800,859 km (0.104 R)
• M5: 2,258,928 km (0.105 R)
• M6: 2,864,201 km (0.061 R)
• M7: 3,783,031 km (0.114 R)
• M8: 4,266,082 km (0.083 R)
• M9: 4,856,844 km (0.068 R)
• M10: 5,969,703 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596

Radius: 10.8

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.52 AU - 1.54 AU

Year: 1222 Days

Day: 5.9 Hours

Environment

Temp: -174 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,557,366 km

• M1: 135,835 km (0.053 R)
• M2: 662,419 km (0.089 R)
• M3: 1,108,819 km (0.055 R)
• M4: 1,602,492 km (0.046 R)
• M5: 2,340,608 km (0.047 R)
• M6: 2,711,461 km (0.065 R)
• M7: 3,052,993 km (0.077 R)
• M8: 3,558,485 km (0.068 R)
• M9: 4,035,702 km (0.114 R)
• M10: 4,430,042 km (0.052 R)
• M11: 5,337,054 km (0.097 R)
• M12: 6,161,488 km (0.064 R)
• M13: 6,851,882 km (0.069 R)
• M14: 7,695,913 km (0.12 R)
• M15: 8,089,654 km (0.087 R)
• M16: 8,719,611 km (0.043 R)
• M17: 10,677,698 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 337

Radius: 11.1

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.9 AU - 2.62 AU

Year: 2194 Days

Day: 5.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,557,366 km

• M1: 138,079 km (0.105 R)
• M2: 540,048 km (0.092 R)
• M3: 1,056,610 km (0.091 R)
• M4: 1,525,749 km (0.082 R)
• M5: 1,872,068 km (0.12 R)
• M6: 2,283,611 km (0.116 R)
• M7: 2,674,660 km (0.104 R)
• M8: 3,354,134 km (0.061 R)
• M9: 4,254,414 km (0.118 R)
• M10: 4,771,723 km (0.067 R)
• M11: 5,504,304 km (0.115 R)
• M12: 6,334,423 km (0.079 R)
• M13: 7,325,658 km (0.054 R)
• M14: 8,242,843 km (0.088 R)
• M15: 8,624,467 km (0.088 R)
• M16: 9,423,469 km (0.083 R)
• M17: 9,776,071 km (0.074 R)
• M18: 10,439,687 km (0.101 R)
• M19: 11,062,463 km (0.056 R)
• M20: 11,455,158 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.4

Radius: 12

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 3.01 AU - 3.77 AU

Year: 4030 Days

Day: 13.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,557,366 km

• M1: 149,299 km (0.112 R)
• M2: 648,507 km (0.082 R)
• M3: 1,380,489 km (0.12 R)
• M4: 1,871,469 km (0.088 R)
• M5: 3,118,966 km (0.109 R)
• M6: 3,940,109 km (0.054 R)
• M7: 4,372,746 km (0.025 R)
• M8: 5,201,518 km (0.092 R)
• M9: 6,280,717 km (0.096 R)
• M10: 12,008,071 km (0.034 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.2

Radius: 8.9

Gravity: 8.81 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 3.29 AU - 4.97 AU

Year: 5419 Days

Day: 11.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 60,557,366 km

• M1: 137,181 km (0.079 R)
• M2: 441,763 km (0.1 R)
• M3: 842,685 km (0.049 R)
• M4: 1,755,681 km (0.051 R)
• M5: 2,411,069 km (0.098 R)
• M6: 3,241,187 km (0.106 R)
• M7: 3,578,680 km (0.097 R)
• M8: 4,250,375 km (0.115 R)
• M9: 4,949,146 km (0.093 R)
• M10: 6,090,728 km (0.097 R)
• M11: 7,151,676 km (0.077 R)
• M12: 7,543,323 km (0.112 R)
• M13: 7,874,533 km (0.03 R)
• M14: 9,008,036 km (0.108 R)
• M15: 9,678,234 km (0.111 R)
• M16: 10,113,714 km (0.086 R)
• M17: 12,137,025 km (0.047 R)
• M18: 13,111,655 km (0.085 R)
• M19: 14,416,298 km (0.049 R)
• M20: 15,100,110 km (0.102 R)
• M21: 15,508,811 km (0.116 R)
• M22: 16,409,690 km (0.074 R)
• M23: 21,443,957 km (0.089 R)
• M24: 22,109,668 km (0.116 R)
• M25: 22,789,291 km (0.041 R)
• M26: 23,952,713 km (0.051 R)
• M27: 24,589,252 km (0.112 R)
• M28: 25,400,522 km (0.062 R)
• M29: 27,248,355 km (0.112 R)
• M30: 28,292,996 km (0.119 R)
• M31: 29,818,596 km (0.109 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 677.1

Radius: 11.8

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 4.05 AU - 6.19 AU

Year: 7480 Days

Day: 11.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 60,557,366 km

• M1: 146,756 km (0.098 R)
• M2: 514,916 km (0.119 R)
• M3: 979,866 km (0.109 R)
• M4: 1,990,848 km (0.119 R)
• M5: 3,155,917 km (0.088 R)
• M6: 3,888,049 km (0.097 R)
• M7: 5,076,155 km (0.06 R)
• M8: 5,949,657 km (0.119 R)
• M9: 6,957,348 km (0.097 R)
• M10: 8,075,293 km (0.062 R)
• M11: 8,957,023 km (0.098 R)
• M12: 9,625,277 km (0.103 R)
• M13: 11,061,566 km (0.104 R)
• M14: 11,831,247 km (0.066 R)
• M15: 12,417,970 km (0.11 R)
• M16: 13,534,568 km (0.092 R)
• M17: 15,966,880 km (0.113 R)
• M18: 16,816,596 km (0.086 R)
• M19: 17,354,251 km (0.094 R)
• M20: 21,918,482 km (0.113 R)
• M21: 24,390,287 km (0.119 R)
• M22: 28,438,256 km (0.094 R)
• M23: 35,044,947 km (0.075 R)
• M24: 35,701,981 km (0.058 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938

Radius: 10.9

Gravity: 7.89 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 5.12 AU - 5.7 AU

Year: 8125 Days

Day: 10.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,557,366 km

• M1: 172,786 km (0.12 R)
• M2: 648,058 km (0.099 R)
• M3: 1,075,758 km (0.112 R)
• M4: 1,472,641 km (0.025 R)
• M5: 1,857,407 km (0.05 R)
• M6: 2,291,540 km (0.117 R)
• M7: 2,711,461 km (0.069 R)
• M8: 3,274,099 km (0.069 R)
• M9: 4,722,057 km (0.089 R)
• M10: 5,119,389 km (0.079 R)
• M11: 6,051,533 km (0.087 R)
• M12: 7,574,888 km (0.064 R)
• M13: 10,780,023 km (0.092 R)
• M14: 15,250,157 km (0.063 R)
• M15: 24,967,585 km (0.103 R)
• M16: 31,734,047 km (0.077 R)
• M17: 32,602,762 km (0.113 R)
• M18: 40,764,522 km (0.11 R)
• M19: 43,761,716 km (0.12 R)
• M20: 45,109,443 km (0.077 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 933.6

Radius: 6.7

Gravity: 20.8 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 5.66 AU - 8.5 AU

Year: 12164 Days

Day: 18.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 60,557,366 km

• M1: 83,625 km (0.086 R)
• M2: 340,485 km (0.096 R)
• M3: 972,685 km (0.097 R)
• M4: 1,183,469 km (0.036 R)
• M5: 1,799,064 km (0.102 R)
• M6: 2,064,899 km (0.109 R)
• M7: 3,221,590 km (0.059 R)
• M8: 3,895,828 km (0.069 R)
• M9: 4,563,782 km (0.09 R)
• M10: 5,969,553 km (0.112 R)
• M11: 7,733,612 km (0.038 R)
• M12: 8,247,630 km (0.086 R)
• M13: 9,553,021 km (0.116 R)
• M14: 10,477,536 km (0.07 R)
• M15: 11,520,083 km (0.101 R)
• M16: 12,128,348 km (0.102 R)
• M17: 15,132,722 km (0.106 R)
• M18: 18,931,012 km (0.113 R)
• M19: 19,266,560 km (0.118 R)
• M20: 20,122,858 km (0.074 R)
• M21: 21,911,002 km (0.089 R)
• M22: 24,489,620 km (0.066 R)
• M23: 29,225,141 km (0.069 R)
• M24: 33,183,351 km (0.105 R)
• M25: 33,917,128 km (0.118 R)
• M26: 35,671,163 km (0.1 R)
• M27: 41,717,610 km (0.105 R)
• M28: 43,293,025 km (0.042 R)
• M29: 46,258,354 km (0.093 R)
• M30: 48,883,049 km (0.095 R)
• M31: 49,673,674 km (0.057 R)
• M32: 51,932,302 km (0.112 R)
• M33: 54,596,341 km (0.106 R)
• M34: 56,826,995 km (0.119 R)
• M35: 58,052,800 km (0.037 R)
• M36: 58,761,296 km (0.112 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: 423 - 15,407 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit