🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.94

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.46 AU - 0.62 AU

Year: 256 Days

Day: 26.1 Hours

Environment

Temp: -119 °C

Axial Tilt: 65.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,140,881 km

• M1: 67,020 km (0.082 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.54

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.48 AU - 0.74 AU

Year: 308 Days

Day: 27.3 Hours

Environment

Temp: -138 °C

Axial Tilt: 11 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.28

Radius: 1.39

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.66 AU - 0.68 AU

Year: 354 Days

Day: 15.6 Hours

Environment

Temp: -134 °C

Axial Tilt: 17.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.6

Radius: 11.8

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.67 AU - 0.71 AU

Year: 370 Days

Day: 11.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 68,140,881 km

• M1: 146,756 km (0.114 R)
• M2: 540,198 km (0.052 R)
• M3: 955,482 km (0.063 R)
• M4: 1,343,239 km (0.051 R)
• M5: 1,785,899 km (0.103 R)
• M6: 2,666,133 km (0.089 R)
• M7: 3,727,081 km (0.05 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216

Radius: 14.9

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 4.06 AU - 4.12 AU

Year: 5341 Days

Day: 9.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 68,140,881 km

• M1: 185,651 km (0.081 R)
• M2: 678,127 km (0.059 R)
• M3: 1,889,870 km (0.053 R)
• M4: 2,409,872 km (0.062 R)
• M5: 2,976,399 km (0.107 R)
• M6: 3,537,840 km (0.12 R)
• M7: 5,308,780 km (0.085 R)
• M8: 5,819,058 km (0.109 R)
• M9: 7,028,557 km (0.098 R)
• M10: 8,467,838 km (0.106 R)
• M11: 9,717,130 km (0.103 R)
• M12: 11,291,797 km (0.027 R)
• M13: 12,625,013 km (0.064 R)
• M14: 14,595,666 km (0.078 R)
• M15: 15,346,946 km (0.069 R)
• M16: 15,862,012 km (0.084 R)
• M17: 16,981,303 km (0.078 R)
• M18: 18,845,891 km (0.027 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 101

Radius: 14.5

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 4.16 AU - 6.1 AU

Year: 7502 Days

Day: 14.5 Hours

Environment

Temp: -209 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 68,140,881 km

• M1: 180,415 km (0.107 R)
• M2: 1,716,037 km (0.076 R)
• M3: 2,530,448 km (0.11 R)
• M4: 3,028,011 km (0.095 R)
• M5: 4,415,680 km (0.066 R)
• M6: 5,168,158 km (0.093 R)
• M7: 5,742,165 km (0.09 R)
• M8: 6,303,306 km (0.108 R)
• M9: 7,381,608 km (0.049 R)
• M10: 8,210,530 km (0.102 R)
• M11: 10,322,253 km (0.096 R)
• M12: 11,359,714 km (0.118 R)
• M13: 12,031,858 km (0.094 R)
• M14: 13,318,100 km (0.03 R)
• M15: 14,209,255 km (0.063 R)
• M16: 18,518,571 km (0.064 R)
• M17: 19,629,036 km (0.098 R)
• M18: 20,475,461 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547.6

Radius: 13.6

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 4.33 AU - 6.01 AU

Year: 7590 Days

Day: 11.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 68,140,881 km

• M1: 169,195 km (0.047 R)
• M2: 731,234 km (0.084 R)
• M3: 1,481,318 km (0.085 R)
• M4: 2,223,024 km (0.106 R)
• M5: 2,727,319 km (0.109 R)
• M6: 4,584,277 km (0.078 R)
• M7: 5,231,438 km (0.111 R)
• M8: 6,333,076 km (0.031 R)
• M9: 7,210,767 km (0.092 R)
• M10: 7,660,009 km (0.1 R)
• M11: 8,450,784 km (0.067 R)
• M12: 9,078,945 km (0.094 R)
• M13: 10,010,641 km (0.113 R)
• M14: 12,753,518 km (0.082 R)
• M15: 13,357,145 km (0.1 R)
• M16: 16,153,279 km (0.08 R)
• M17: 17,454,032 km (0.105 R)
• M18: 22,797,818 km (0.036 R)
• M19: 24,182,945 km (0.084 R)
• M20: 24,769,219 km (0.079 R)
• M21: 25,450,936 km (0.105 R)
• M22: 32,769,114 km (0.055 R)
• M23: 33,798,497 km (0.12 R)
• M24: 34,955,637 km (0.112 R)
• M25: 35,382,888 km (0.104 R)
• M26: 35,921,740 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 179.4

Radius: 5.1

Gravity: 6.9 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 4.85 AU - 7.77 AU

Year: 10234 Days

Day: 17 Hours

Environment

Temp: -212 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 68,140,881 km

• M1: 198,068 km (0.11 R)
• M2: 622,477 km (0.095 R)
• M3: 911,051 km (0.114 R)
• M4: 1,160,131 km (0.066 R)
• M5: 1,864,887 km (0.119 R)
• M6: 2,143,438 km (0.075 R)
• M7: 3,787,668 km (0.108 R)
• M8: 5,463,464 km (0.097 R)
• M9: 8,326,318 km (0.087 R)
• M10: 9,537,612 km (0.09 R)
• M11: 11,761,385 km (0.111 R)
• M12: 16,703,949 km (0.114 R)
• M13: 17,137,932 km (0.086 R)
• M14: 17,707,152 km (0.11 R)
• M15: 18,683,428 km (0.114 R)
• M16: 21,389,204 km (0.12 R)
• M17: 24,187,133 km (0.113 R)
• M18: 29,406,453 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 650.9

Radius: 7.4

Gravity: 11.89 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 6.6 AU - 8.24 AU

Year: 13050 Days

Day: 16.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 68,140,881 km

• M1: 113,844 km (0.06 R)
• M2: 398,379 km (0.12 R)
• M3: 830,567 km (0.103 R)
• M4: 1,091,017 km (0.077 R)
• M5: 1,701,825 km (0.092 R)
• M6: 2,242,322 km (0.097 R)
• M7: 2,500,977 km (0.115 R)
• M8: 3,223,834 km (0.082 R)
• M9: 3,769,268 km (0.105 R)
• M10: 4,021,191 km (0.111 R)
• M11: 4,590,261 km (0.036 R)
• M12: 5,042,944 km (0.08 R)
• M13: 6,344,446 km (0.119 R)
• M14: 6,742,526 km (0.061 R)
• M15: 7,457,603 km (0.059 R)
• M16: 8,409,196 km (0.052 R)
• M17: 10,011,688 km (0.096 R)
• M18: 12,106,806 km (0.063 R)
• M19: 12,472,124 km (0.118 R)
• M20: 12,719,709 km (0.035 R)
• M21: 16,171,380 km (0.116 R)
• M22: 17,758,015 km (0.109 R)
• M23: 19,611,982 km (0.025 R)
• M24: 28,858,177 km (0.102 R)
• M25: 30,172,095 km (0.097 R)
• M26: 30,506,746 km (0.034 R)
• M27: 33,155,077 km (0.118 R)
• M28: 36,329,095 km (0.078 R)
• M29: 36,707,877 km (0.057 R)
• M30: 38,249,333 km (0.087 R)
• M31: 40,371,229 km (0.113 R)
• M32: 42,013,216 km (0.102 R)
• M33: 43,841,750 km (0.092 R)
• M34: 45,869,550 km (0.088 R)
• M35: 48,873,624 km (0.112 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 779.6

Radius: 3.9

Gravity: 51.26 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 6.36 AU - 10.56 AU

Year: 15888 Days

Day: 15.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 68,140,881 km

• M1: 54,753 km (0.102 R)
• M2: 181,462 km (0.103 R)
• M3: 337,942 km (0.027 R)
• M4: 479,611 km (0.098 R)
• M5: 989,740 km (0.098 R)
• M6: 1,177,634 km (0.086 R)
• M7: 1,495,680 km (0.091 R)
• M8: 1,658,143 km (0.075 R)
• M9: 1,980,526 km (0.094 R)
• M10: 3,305,515 km (0.093 R)
• M11: 3,784,826 km (0.083 R)
• M12: 4,118,878 km (0.114 R)
• M13: 5,500,115 km (0.095 R)
• M14: 5,770,139 km (0.12 R)
• M15: 6,089,381 km (0.115 R)
• M16: 8,207,538 km (0.06 R)
• M17: 8,458,264 km (0.077 R)
• M18: 10,359,054 km (0.111 R)
• M19: 11,377,367 km (0.108 R)
• M20: 11,815,389 km (0.103 R)
• M21: 12,329,857 km (0.049 R)
• M22: 13,610,863 km (0.091 R)
• M23: 25,889,856 km (0.078 R)
• M24: 27,306,997 km (0.082 R)
• M25: 29,704,004 km (0.116 R)
• M26: 31,014,032 km (0.094 R)
• M27: 31,499,627 km (0.098 R)
• M28: 32,861,566 km (0.111 R)
• M29: 37,318,386 km (0.095 R)
• M30: 39,406,473 km (0.059 R)
• M31: 41,278,092 km (0.107 R)
• M32: 42,458,868 km (0.108 R)
• M33: 45,978,606 km (0.08 R)
• M34: 47,087,127 km (0.064 R)
• M35: 47,407,116 km (0.09 R)
• M36: 48,538,525 km (0.085 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 403 - 16,907 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit