🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.49

Radius: 0.75

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.47 AU - 0.67 AU

Year: 274 Days

Day: 30.8 Hours

Environment

Temp: -119 °C

Axial Tilt: 21.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.77

Radius: 0.9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.54 AU - 0.7 AU

Year: 310 Days

Day: 21.8 Hours

Environment

Temp: -128 °C

Axial Tilt: 27.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997.5

Radius: 10.4

Gravity: 9.22 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.68 AU - 1.06 AU

Year: 516 Days

Day: 5.1 Hours

Environment

Temp: -159 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 85,915,325 km

• M1: 129,701 km (0.088 R)
• M2: 525,837 km (0.077 R)
• M3: 878,289 km (0.075 R)
• M4: 1,464,114 km (0.089 R)
• M5: 2,033,185 km (0.069 R)
• M6: 2,415,407 km (0.105 R)
• M7: 2,811,692 km (0.112 R)
• M8: 3,534,250 km (0.1 R)
• M9: 4,062,181 km (0.072 R)
• M10: 4,531,320 km (0.111 R)
• M11: 4,952,288 km (0.114 R)
• M12: 6,335,021 km (0.084 R)
• M13: 7,009,707 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 834.2

Radius: 14.1

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 1.46 AU - 2.2 AU

Year: 1574 Days

Day: 12.8 Hours

Environment

Temp: -195 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 85,915,325 km

• M1: 175,329 km (0.063 R)
• M2: 654,042 km (0.07 R)
• M3: 1,755,830 km (0.072 R)
• M4: 2,345,994 km (0.032 R)
• M5: 3,008,264 km (0.052 R)
• M6: 3,555,642 km (0.03 R)
• M7: 6,224,169 km (0.09 R)
• M8: 7,308,903 km (0.086 R)
• M9: 8,699,116 km (0.06 R)
• M10: 9,328,026 km (0.104 R)
• M11: 10,466,615 km (0.119 R)
• M12: 11,509,462 km (0.062 R)
• M13: 12,075,391 km (0.056 R)
• M14: 12,620,376 km (0.071 R)
• M15: 13,345,177 km (0.114 R)
• M16: 14,702,180 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 296.4

Radius: 14.1

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 1.94 AU - 2.6 AU

Year: 2175 Days

Day: 9.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 85,915,325 km

• M1: 175,777 km (0.071 R)
• M2: 674,836 km (0.085 R)
• M3: 1,189,453 km (0.117 R)
• M4: 1,871,021 km (0.059 R)
• M5: 2,434,705 km (0.045 R)
• M6: 3,039,679 km (0.045 R)
• M7: 3,945,045 km (0.088 R)
• M8: 4,707,845 km (0.056 R)
• M9: 6,847,843 km (0.115 R)
• M10: 7,385,796 km (0.07 R)
• M11: 10,646,880 km (0.085 R)
• M12: 12,994,221 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 726.6

Radius: 14.6

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 2.62 AU - 2.8 AU

Year: 2837 Days

Day: 14.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 85,915,325 km

• M1: 181,761 km (0.118 R)
• M2: 740,809 km (0.097 R)
• M3: 1,224,309 km (0.111 R)
• M4: 3,022,775 km (0.101 R)
• M5: 4,391,745 km (0.112 R)
• M6: 5,640,588 km (0.086 R)
• M7: 7,084,656 km (0.049 R)
• M8: 10,225,314 km (0.045 R)
• M9: 11,675,216 km (0.096 R)
• M10: 15,281,871 km (0.068 R)
• M11: 16,052,151 km (0.078 R)
• M12: 18,176,440 km (0.107 R)
• M13: 18,808,192 km (0.104 R)
• M14: 19,395,065 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 710.8

Radius: 9.6

Gravity: 7.71 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 3.88 AU - 4.4 AU

Year: 5356 Days

Day: 13.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 85,915,325 km

• M1: 119,379 km (0.09 R)
• M2: 473,028 km (0.086 R)
• M3: 889,060 km (0.116 R)
• M4: 1,682,677 km (0.074 R)
• M5: 2,365,591 km (0.032 R)
• M6: 3,063,764 km (0.067 R)
• M7: 3,514,952 km (0.043 R)
• M8: 3,824,918 km (0.097 R)
• M9: 4,812,713 km (0.073 R)
• M10: 5,224,257 km (0.031 R)
• M11: 6,768,256 km (0.075 R)
• M12: 7,572,345 km (0.095 R)
• M13: 7,941,253 km (0.104 R)
• M14: 8,322,130 km (0.114 R)
• M15: 8,956,873 km (0.053 R)
• M16: 9,453,837 km (0.077 R)
• M17: 10,412,760 km (0.114 R)
• M18: 11,055,881 km (0.104 R)
• M19: 11,676,563 km (0.111 R)
• M20: 12,370,846 km (0.096 R)
• M21: 13,517,065 km (0.104 R)
• M22: 14,338,208 km (0.091 R)
• M23: 14,846,691 km (0.097 R)
• M24: 15,192,262 km (0.115 R)
• M25: 17,571,317 km (0.11 R)
• M26: 18,023,252 km (0.11 R)
• M27: 18,350,722 km (0.053 R)
• M28: 18,815,971 km (0.047 R)
• M29: 19,494,099 km (0.12 R)
• M30: 21,848,021 km (0.083 R)
• M31: 23,286,105 km (0.076 R)
• M32: 28,861,319 km (0.093 R)
• M33: 30,221,163 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 703.9

Radius: 3.3

Gravity: 64.64 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 10.66 AU - 11.64 AU

Year: 23673 Days

Day: 24.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 85,915,325 km

• M1: 41,887 km (0.036 R)
• M2: 204,799 km (0.043 R)
• M3: 399,426 km (0.095 R)
• M4: 533,616 km (0.075 R)
• M5: 870,959 km (0.077 R)
• M6: 1,127,220 km (0.038 R)
• M7: 2,649,229 km (0.116 R)
• M8: 3,327,655 km (0.107 R)
• M9: 3,446,137 km (0.119 R)
• M10: 4,251,272 km (0.109 R)
• M11: 5,703,568 km (0.103 R)
• M12: 6,494,642 km (0.114 R)
• M13: 6,633,170 km (0.09 R)
• M14: 12,971,033 km (0.117 R)
• M15: 16,796,101 km (0.103 R)
• M16: 18,130,065 km (0.103 R)
• M17: 19,918,807 km (0.083 R)
• M18: 24,617,526 km (0.089 R)
• M19: 41,423,052 km (0.04 R)
• M20: 43,515,926 km (0.078 R)
• M21: 44,838,222 km (0.047 R)
• M22: 52,407,126 km (0.09 R)
• M23: 55,620,189 km (0.103 R)
• M24: 55,813,170 km (0.111 R)
• M25: 56,394,807 km (0.049 R)
• M26: 57,965,435 km (0.119 R)
• M27: 61,605,750 km (0.043 R)
• M28: 62,019,388 km (0.11 R)
• M29: 63,061,636 km (0.111 R)
• M30: 64,115,553 km (0.08 R)
• M31: 65,825,905 km (0.111 R)
• M32: 71,366,861 km (0.088 R)
• M33: 71,823,135 km (0.064 R)
• M34: 72,051,870 km (0.065 R)
• M35: 85,401,086 km (0.119 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 188 - 16,944 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit