🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.87

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.39 AU - 0.63 AU

Year: 239 Days

Day: 36.9 Hours

Environment

Temp: -123 °C

Axial Tilt: 37.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.72

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.44 AU - 0.68 AU

Year: 275 Days

Day: 33.1 Hours

Environment

Temp: -126 °C

Axial Tilt: 74.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.9

Radius: 12.3

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.75 AU - 1.13 AU

Year: 598 Days

Day: 14.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,575,644 km

• M1: 153,188 km (0.101 R)
• M2: 565,330 km (0.077 R)
• M3: 992,731 km (0.094 R)
• M4: 1,399,338 km (0.108 R)
• M5: 1,824,645 km (0.11 R)
• M6: 2,305,303 km (0.089 R)
• M7: 3,001,382 km (0.108 R)
• M8: 3,856,184 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 760.6

Radius: 9.8

Gravity: 7.92 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.93 AU - 1.43 AU

Year: 841 Days

Day: 14.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 44,575,644 km

• M1: 122,072 km (0.096 R)
• M2: 447,746 km (0.091 R)
• M3: 885,320 km (0.097 R)
• M4: 1,235,080 km (0.048 R)
• M5: 1,570,179 km (0.068 R)
• M6: 2,033,783 km (0.109 R)
• M7: 2,374,118 km (0.115 R)
• M8: 3,617,576 km (0.054 R)
• M9: 3,948,486 km (0.094 R)
• M10: 4,299,443 km (0.036 R)
• M11: 5,213,187 km (0.032 R)
• M12: 6,124,836 km (0.078 R)
• M13: 6,487,461 km (0.1 R)
• M14: 7,185,784 km (0.118 R)
• M15: 7,858,825 km (0.111 R)
• M16: 8,652,442 km (0.08 R)
• M17: 9,192,191 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.2

Radius: 12

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 2.55 AU - 3.97 AU

Year: 3861 Days

Day: 9.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 44,575,644 km

• M1: 149,299 km (0.06 R)
• M2: 806,931 km (0.118 R)
• M3: 1,287,439 km (0.042 R)
• M4: 2,642,497 km (0.099 R)
• M5: 3,306,412 km (0.044 R)
• M6: 3,922,905 km (0.055 R)
• M7: 4,789,226 km (0.066 R)
• M8: 5,221,115 km (0.105 R)
• M9: 6,675,805 km (0.106 R)
• M10: 8,320,484 km (0.108 R)
• M11: 9,048,876 km (0.113 R)
• M12: 10,183,725 km (0.101 R)
• M13: 12,268,671 km (0.09 R)
• M14: 13,345,028 km (0.067 R)
• M15: 15,148,430 km (0.07 R)
• M16: 16,133,831 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.2

Radius: 13.6

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 3.65 AU - 5.33 AU

Year: 6241 Days

Day: 10.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,575,644 km

• M1: 169,195 km (0.099 R)
• M2: 820,844 km (0.111 R)
• M3: 1,744,461 km (0.12 R)
• M4: 2,486,167 km (0.04 R)
• M5: 3,740,844 km (0.11 R)
• M6: 4,725,946 km (0.112 R)
• M7: 7,519,687 km (0.078 R)
• M8: 11,195,007 km (0.109 R)
• M9: 12,203,895 km (0.109 R)
• M10: 15,036,830 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 717

Radius: 11.4

Gravity: 5.52 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 3.65 AU - 6.03 AU

Year: 6985 Days

Day: 6.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 44,575,644 km

• M1: 142,268 km (0.113 R)
• M2: 553,811 km (0.113 R)
• M3: 1,380,938 km (0.103 R)
• M4: 1,849,628 km (0.089 R)
• M5: 2,236,339 km (0.116 R)
• M6: 3,737,553 km (0.114 R)
• M7: 4,687,948 km (0.111 R)
• M8: 5,205,408 km (0.101 R)
• M9: 6,632,272 km (0.115 R)
• M10: 9,777,866 km (0.113 R)
• M11: 12,144,505 km (0.098 R)
• M12: 12,791,216 km (0.057 R)
• M13: 13,460,667 km (0.098 R)
• M14: 14,748,704 km (0.114 R)
• M15: 15,799,031 km (0.081 R)
• M16: 16,700,957 km (0.105 R)
• M17: 18,048,385 km (0.061 R)
• M18: 19,686,182 km (0.077 R)
• M19: 20,958,811 km (0.056 R)
• M20: 23,750,308 km (0.076 R)
• M21: 24,762,038 km (0.081 R)
• M22: 25,714,378 km (0.08 R)
• M23: 26,601,194 km (0.112 R)
• M24: 28,623,907 km (0.118 R)
• M25: 33,285,077 km (0.094 R)
• M26: 33,808,969 km (0.059 R)
• M27: 36,844,908 km (0.057 R)
• M28: 37,292,954 km (0.059 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.1

Radius: 13

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 4.53 AU - 5.39 AU

Year: 7247 Days

Day: 11.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 44,575,644 km

• M1: 163,660 km (0.099 R)
• M2: 820,544 km (0.104 R)
• M3: 1,445,415 km (0.107 R)
• M4: 2,059,813 km (0.074 R)
• M5: 3,627,150 km (0.098 R)
• M6: 5,370,115 km (0.11 R)
• M7: 5,882,039 km (0.104 R)
• M8: 6,321,856 km (0.069 R)
• M9: 8,774,514 km (0.089 R)
• M10: 9,215,378 km (0.119 R)
• M11: 9,763,954 km (0.083 R)
• M12: 11,385,894 km (0.119 R)
• M13: 12,288,268 km (0.048 R)
• M14: 14,056,216 km (0.038 R)
• M15: 15,729,319 km (0.12 R)
• M16: 17,739,914 km (0.084 R)
• M17: 18,734,740 km (0.052 R)
• M18: 19,766,367 km (0.082 R)
• M19: 20,526,174 km (0.114 R)
• M20: 21,147,903 km (0.119 R)
• M21: 21,942,716 km (0.115 R)
• M22: 22,674,998 km (0.108 R)
• M23: 24,360,816 km (0.076 R)
• M24: 26,859,101 km (0.079 R)
• M25: 29,425,752 km (0.045 R)
• M26: 34,822,345 km (0.089 R)
• M27: 40,237,339 km (0.059 R)
• M28: 40,844,557 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 890.5

Radius: 3.8

Gravity: 61.67 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 7.23 AU - 7.43 AU

Year: 13019 Days

Day: 15.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 44,575,644 km

• M1: 47,273 km (0.091 R)
• M2: 171,888 km (0.119 R)
• M3: 317,147 km (0.106 R)
• M4: 684,111 km (0.086 R)
• M5: 866,471 km (0.111 R)
• M6: 1,536,071 km (0.058 R)
• M7: 2,108,732 km (0.094 R)
• M8: 2,979,391 km (0.07 R)
• M9: 3,386,746 km (0.077 R)
• M10: 3,603,962 km (0.106 R)
• M11: 4,599,087 km (0.106 R)
• M12: 5,002,553 km (0.093 R)
• M13: 5,995,733 km (0.053 R)
• M14: 6,354,170 km (0.101 R)
• M15: 6,601,006 km (0.069 R)
• M16: 9,698,580 km (0.098 R)
• M17: 11,348,046 km (0.076 R)
• M18: 12,782,540 km (0.099 R)
• M19: 13,109,561 km (0.03 R)
• M20: 14,829,338 km (0.108 R)
• M21: 16,385,455 km (0.096 R)
• M22: 18,792,335 km (0.118 R)
• M23: 19,817,679 km (0.095 R)
• M24: 20,879,674 km (0.036 R)
• M25: 26,763,508 km (0.119 R)
• M26: 27,406,480 km (0.047 R)
• M27: 28,722,941 km (0.098 R)
• M28: 29,170,986 km (0.113 R)
• M29: 31,600,007 km (0.09 R)
• M30: 35,426,870 km (0.096 R)
• M31: 36,201,638 km (0.055 R)
• M32: 45,785,775 km (0.104 R)
• M33: 51,319,400 km (0.083 R)
• M34: 51,813,372 km (0.118 R)
• M35: 55,016,263 km (0.096 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 204.1

Radius: 3.8

Gravity: 14.13 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 7.23 AU - 9.89 AU

Year: 16429 Days

Day: 15.4 Hours

Environment

Temp: -237 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 44,575,644 km

• M1: 47,423 km (0.075 R)
• M2: 180,265 km (0.091 R)
• M3: 311,313 km (0.058 R)
• M4: 459,565 km (0.115 R)
• M5: 759,808 km (0.107 R)
• M6: 983,456 km (0.084 R)
• M7: 1,110,914 km (0.067 R)
• M8: 1,533,827 km (0.116 R)
• M9: 1,907,672 km (0.108 R)
• M10: 2,302,760 km (0.109 R)
• M11: 4,409,846 km (0.057 R)
• M12: 5,546,790 km (0.076 R)
• M13: 5,816,066 km (0.066 R)
• M14: 6,904,241 km (0.067 R)
• M15: 9,239,015 km (0.12 R)
• M16: 9,569,477 km (0.098 R)
• M17: 9,713,539 km (0.081 R)
• M18: 10,154,404 km (0.084 R)
• M19: 10,455,545 km (0.096 R)
• M20: 14,675,252 km (0.112 R)
• M21: 15,984,383 km (0.113 R)
• M22: 18,533,680 km (0.081 R)
• M23: 22,505,504 km (0.076 R)
• M24: 22,845,839 km (0.064 R)
• M25: 24,598,827 km (0.081 R)
• M26: 27,489,955 km (0.113 R)
• M27: 30,599,496 km (0.09 R)
• M28: 31,122,042 km (0.075 R)
• M29: 34,947,559 km (0.057 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: 246 - 12,749 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit