🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.41

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.65 AU - 0.67 AU

Year: 352 Days

Day: 33 Hours

Environment

Temp: -126 °C

Axial Tilt: 38.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589.1

Radius: 11.7

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.81 AU - 1.05 AU

Year: 588 Days

Day: 10.1 Hours

Environment

Temp: -146 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 93,655,351 km

• M1: 145,559 km (0.083 R)
• M2: 580,739 km (0.089 R)
• M3: 989,291 km (0.093 R)
• M4: 1,395,599 km (0.034 R)
• M5: 2,059,663 km (0.078 R)
• M6: 2,814,684 km (0.073 R)
• M7: 3,336,332 km (0.1 R)
• M8: 4,046,922 km (0.084 R)
• M9: 4,605,670 km (0.078 R)
• M10: 5,000,758 km (0.049 R)
• M11: 5,487,699 km (0.114 R)
• M12: 6,154,756 km (0.116 R)
• M13: 6,774,540 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 428

Radius: 10.6

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.95 AU - 1.09 AU

Year: 676 Days

Day: 6.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 93,655,351 km

• M1: 132,394 km (0.079 R)
• M2: 489,035 km (0.116 R)
• M3: 916,137 km (0.102 R)
• M4: 1,353,562 km (0.077 R)
• M5: 1,806,843 km (0.118 R)
• M6: 2,154,957 km (0.064 R)
• M7: 3,081,567 km (0.095 R)
• M8: 3,545,320 km (0.029 R)
• M9: 3,957,612 km (0.106 R)
• M10: 4,476,716 km (0.054 R)
• M11: 4,815,855 km (0.048 R)
• M12: 5,408,262 km (0.086 R)
• M13: 5,775,974 km (0.096 R)
• M14: 6,349,233 km (0.062 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 661.4

Radius: 11.4

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.29 AU - 1.45 AU

Year: 1052 Days

Day: 8.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 93,655,351 km

• M1: 145,559 km (0.079 R)
• M2: 529,876 km (0.108 R)
• M3: 1,405,023 km (0.049 R)
• M4: 3,593,191 km (0.086 R)
• M5: 5,434,591 km (0.094 R)
• M6: 5,863,489 km (0.077 R)
• M7: 6,448,267 km (0.118 R)
• M8: 6,976,796 km (0.075 R)
• M9: 7,658,962 km (0.031 R)
• M10: 8,931,442 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418

Radius: 8.7

Gravity: 5.52 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.56 AU - 1.58 AU

Year: 1291 Days

Day: 6.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 93,655,351 km

• M1: 108,159 km (0.046 R)
• M2: 402,568 km (0.104 R)
• M3: 775,665 km (0.063 R)
• M4: 1,536,221 km (0.081 R)
• M5: 1,826,889 km (0.083 R)
• M6: 2,133,714 km (0.107 R)
• M7: 2,640,702 km (0.118 R)
• M8: 3,367,298 km (0.118 R)
• M9: 4,056,047 km (0.071 R)
• M10: 4,390,847 km (0.097 R)
• M11: 5,212,439 km (0.082 R)
• M12: 5,711,198 km (0.077 R)
• M13: 6,351,327 km (0.079 R)
• M14: 7,648,191 km (0.115 R)
• M15: 8,213,521 km (0.079 R)
• M16: 9,028,830 km (0.043 R)
• M17: 10,047,143 km (0.046 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.6

Radius: 13.9

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 3.93 AU - 3.95 AU

Year: 5130 Days

Day: 10.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 93,655,351 km

• M1: 172,935 km (0.093 R)
• M2: 939,175 km (0.104 R)
• M3: 1,444,667 km (0.052 R)
• M4: 2,058,766 km (0.072 R)
• M5: 2,939,598 km (0.038 R)
• M6: 4,181,111 km (0.101 R)
• M7: 7,614,532 km (0.086 R)
• M8: 8,619,231 km (0.114 R)
• M9: 11,496,896 km (0.102 R)
• M10: 12,468,235 km (0.096 R)
• M11: 14,622,743 km (0.089 R)
• M12: 16,696,020 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914.4

Radius: 9.5

Gravity: 10.13 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 4.77 AU - 5.05 AU

Year: 7137 Days

Day: 12.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 93,655,351 km

• M1: 118,781 km (0.063 R)
• M2: 642,972 km (0.094 R)
• M3: 1,060,799 km (0.066 R)
• M4: 1,406,968 km (0.097 R)
• M5: 1,889,571 km (0.11 R)
• M6: 2,406,431 km (0.086 R)
• M7: 3,232,212 km (0.071 R)
• M8: 6,200,383 km (0.103 R)
• M9: 7,943,348 km (0.098 R)
• M10: 8,276,801 km (0.094 R)
• M11: 9,197,127 km (0.075 R)
• M12: 10,232,943 km (0.098 R)
• M13: 10,779,125 km (0.106 R)
• M14: 13,866,227 km (0.073 R)
• M15: 14,228,553 km (0.106 R)
• M16: 15,482,033 km (0.028 R)
• M17: 17,568,325 km (0.115 R)
• M18: 19,307,251 km (0.098 R)
• M19: 20,295,794 km (0.106 R)
• M20: 20,606,508 km (0.092 R)
• M21: 22,705,067 km (0.091 R)
• M22: 31,792,539 km (0.119 R)
• M23: 32,635,224 km (0.039 R)
• M24: 33,709,487 km (0.085 R)
• M25: 36,042,017 km (0.109 R)
• M26: 36,383,698 km (0.114 R)
• M27: 39,678,741 km (0.107 R)
• M28: 41,025,870 km (0.067 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 91.3

Radius: 4.9

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 8.23 AU - 10.67 AU

Year: 19057 Days

Day: 17.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 93,655,351 km

• M1: 61,036 km (0.068 R)
• M2: 322,683 km (0.104 R)
• M3: 876,943 km (0.07 R)
• M4: 1,630,916 km (0.086 R)
• M5: 2,844,753 km (0.102 R)
• M6: 10,003,460 km (0.088 R)
• M7: 17,148,254 km (0.118 R)
• M8: 22,331,521 km (0.074 R)
• M9: 23,136,507 km (0.066 R)
• M10: 32,174,912 km (0.059 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 996.9

Radius: 6

Gravity: 27.69 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 9.51 AU - 11.69 AU

Year: 22640 Days

Day: 23.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 93,655,351 km

• M1: 74,949 km (0.115 R)
• M2: 429,944 km (0.081 R)
• M3: 716,424 km (0.074 R)
• M4: 916,736 km (0.047 R)
• M5: 1,112,410 km (0.116 R)
• M6: 1,434,045 km (0.112 R)
• M7: 1,663,080 km (0.108 R)
• M8: 1,875,957 km (0.096 R)
• M9: 3,656,172 km (0.045 R)
• M10: 4,513,966 km (0.067 R)
• M11: 4,970,090 km (0.115 R)
• M12: 6,154,008 km (0.108 R)
• M13: 6,763,170 km (0.101 R)
• M14: 10,167,270 km (0.071 R)
• M15: 10,750,701 km (0.056 R)
• M16: 15,057,175 km (0.096 R)
• M17: 16,508,873 km (0.048 R)
• M18: 18,427,915 km (0.051 R)
• M19: 19,986,425 km (0.076 R)
• M20: 21,315,602 km (0.081 R)
• M21: 23,251,997 km (0.043 R)
• M22: 25,069,162 km (0.084 R)
• M23: 26,012,227 km (0.069 R)
• M24: 28,346,403 km (0.092 R)
• M25: 30,021,749 km (0.115 R)
• M26: 31,625,738 km (0.06 R)
• M27: 38,614,053 km (0.064 R)
• M28: 42,631,055 km (0.114 R)
• M29: 44,142,741 km (0.052 R)
• M30: 45,343,115 km (0.109 R)
• M31: 49,991,719 km (0.09 R)
• M32: 50,361,824 km (0.102 R)
• M33: 51,672,002 km (0.037 R)
• M34: 53,582,816 km (0.109 R)
• M35: 53,970,573 km (0.103 R)
• M36: 54,165,200 km (0.114 R)
• M37: 58,155,574 km (0.062 R)
• M38: 58,976,417 km (0.09 R)
• M39: 75,833,554 km (0.071 R)
• M40: 80,055,356 km (0.094 R)
• M41: 82,095,123 km (0.074 R)
• M42: 85,219,325 km (0.084 R)
• M43: 88,963,460 km (0.06 R)
• M44: 89,234,980 km (0.071 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 418 - 18,579 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit