🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486

Radius: 12.7

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.59 AU - 0.93 AU

Year: 457 Days

Day: 11.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 87,502,942 km

• M1: 157,975 km (0.076 R)
• M2: 565,480 km (0.042 R)
• M3: 1,110,465 km (0.061 R)
• M4: 1,556,267 km (0.055 R)
• M5: 2,214,946 km (0.096 R)
• M6: 3,215,756 km (0.053 R)
• M7: 4,015,506 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 183.9

Radius: 9.7

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.15 AU - 1.17 AU

Year: 862 Days

Day: 6.4 Hours

Environment

Temp: -173 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 87,502,942 km

• M1: 120,875 km (0.113 R)
• M2: 966,851 km (0.105 R)
• M3: 1,972,298 km (0.083 R)
• M4: 3,070,347 km (0.104 R)
• M5: 3,639,118 km (0.091 R)
• M6: 4,534,162 km (0.063 R)
• M7: 5,929,910 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.3

Radius: 9.8

Gravity: 8.51 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.03 AU - 1.43 AU

Year: 942 Days

Day: 13.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 87,502,942 km

• M1: 122,221 km (0.114 R)
• M2: 661,671 km (0.112 R)
• M3: 989,889 km (0.114 R)
• M4: 1,429,707 km (0.113 R)
• M5: 1,861,746 km (0.108 R)
• M6: 2,214,796 km (0.091 R)
• M7: 2,747,365 km (0.106 R)
• M8: 3,643,606 km (0.09 R)
• M9: 4,036,300 km (0.065 R)
• M10: 5,308,331 km (0.118 R)
• M11: 5,731,394 km (0.093 R)
• M12: 6,853,228 km (0.081 R)
• M13: 9,526,243 km (0.113 R)
• M14: 9,940,629 km (0.026 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 725.1

Radius: 12.8

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.76 AU - 2.26 AU

Year: 1967 Days

Day: 14.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 87,502,942 km

• M1: 204,051 km (0.118 R)
• M2: 948,301 km (0.095 R)
• M3: 2,279,124 km (0.093 R)
• M4: 2,808,102 km (0.068 R)
• M5: 3,764,780 km (0.116 R)
• M6: 4,250,823 km (0.12 R)
• M7: 4,778,455 km (0.096 R)
• M8: 7,285,715 km (0.062 R)
• M9: 8,412,038 km (0.105 R)
• M10: 9,549,281 km (0.044 R)
• M11: 10,067,039 km (0.081 R)
• M12: 10,786,455 km (0.096 R)
• M13: 11,694,664 km (0.067 R)
• M14: 15,278,879 km (0.114 R)
• M15: 16,229,574 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964

Radius: 13.2

Gravity: 5.53 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 2.23 AU - 2.81 AU

Year: 2761 Days

Day: 14.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 87,502,942 km

• M1: 164,109 km (0.087 R)
• M2: 750,682 km (0.095 R)
• M3: 1,300,305 km (0.103 R)
• M4: 1,780,364 km (0.118 R)
• M5: 2,923,442 km (0.101 R)
• M6: 4,178,119 km (0.118 R)
• M7: 7,592,840 km (0.078 R)
• M8: 8,360,726 km (0.106 R)
• M9: 8,961,062 km (0.03 R)
• M10: 10,731,104 km (0.085 R)
• M11: 13,615,052 km (0.026 R)
• M12: 14,850,581 km (0.112 R)
• M13: 15,521,976 km (0.109 R)
• M14: 17,430,546 km (0.052 R)
• M15: 18,767,053 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.3

Radius: 9.6

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 2.18 AU - 2.86 AU

Year: 2761 Days

Day: 6.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 87,502,942 km

• M1: 120,875 km (0.04 R)
• M2: 494,571 km (0.105 R)
• M3: 828,772 km (0.114 R)
• M4: 2,465,223 km (0.055 R)
• M5: 2,809,448 km (0.074 R)
• M6: 3,403,501 km (0.069 R)
• M7: 4,336,842 km (0.096 R)
• M8: 5,338,250 km (0.102 R)
• M9: 6,567,047 km (0.088 R)
• M10: 7,822,921 km (0.037 R)
• M11: 8,864,871 km (0.105 R)
• M12: 11,222,383 km (0.063 R)
• M13: 11,811,500 km (0.088 R)
• M14: 12,712,528 km (0.056 R)
• M15: 13,702,866 km (0.119 R)
• M16: 14,104,087 km (0.116 R)
• M17: 15,788,110 km (0.115 R)
• M18: 17,084,825 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.6

Radius: 11

Gravity: 6.6 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 3.9 AU - 4.64 AU

Year: 6091 Days

Day: 14.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 87,502,942 km

• M1: 136,732 km (0.063 R)
• M2: 480,808 km (0.12 R)
• M3: 1,878,351 km (0.117 R)
• M4: 2,869,886 km (0.032 R)
• M5: 3,583,318 km (0.096 R)
• M6: 4,006,829 km (0.028 R)
• M7: 5,011,977 km (0.12 R)
• M8: 7,515,647 km (0.101 R)
• M9: 11,794,446 km (0.046 R)
• M10: 13,841,094 km (0.075 R)
• M11: 15,926,189 km (0.075 R)
• M12: 17,405,563 km (0.067 R)
• M13: 21,235,567 km (0.102 R)
• M14: 31,786,855 km (0.042 R)
• M15: 33,503,790 km (0.095 R)
• M16: 36,139,554 km (0.099 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 769.1

Radius: 10.2

Gravity: 7.39 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 3.42 AU - 5.52 AU

Year: 6523 Days

Day: 11.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 87,502,942 km

• M1: 130,300 km (0.093 R)
• M2: 530,025 km (0.029 R)
• M3: 1,145,321 km (0.077 R)
• M4: 1,714,392 km (0.05 R)
• M5: 2,176,051 km (0.066 R)
• M6: 3,200,946 km (0.105 R)
• M7: 3,598,427 km (0.082 R)
• M8: 7,006,715 km (0.117 R)
• M9: 7,565,164 km (0.044 R)
• M10: 9,465,057 km (0.037 R)
• M11: 10,288,444 km (0.12 R)
• M12: 12,183,101 km (0.089 R)
• M13: 13,777,665 km (0.099 R)
• M14: 18,192,298 km (0.074 R)
• M15: 19,900,406 km (0.084 R)
• M16: 27,170,713 km (0.05 R)
• M17: 30,360,289 km (0.113 R)
• M18: 35,276,225 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 850.1

Radius: 4.5

Gravity: 41.98 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 8.17 AU - 8.59 AU

Year: 16745 Days

Day: 18.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 87,502,942 km

• M1: 55,950 km (0.114 R)
• M2: 291,267 km (0.12 R)
• M3: 479,312 km (0.104 R)
• M4: 997,818 km (0.108 R)
• M5: 1,468,752 km (0.091 R)
• M6: 2,302,910 km (0.111 R)
• M7: 3,527,518 km (0.119 R)
• M8: 3,883,411 km (0.091 R)
• M9: 4,427,798 km (0.094 R)
• M10: 5,786,296 km (0.102 R)
• M11: 6,758,233 km (0.064 R)
• M12: 7,120,559 km (0.075 R)
• M13: 7,400,607 km (0.105 R)
• M14: 8,490,726 km (0.119 R)
• M15: 9,683,620 km (0.082 R)
• M16: 13,926,066 km (0.065 R)
• M17: 14,962,181 km (0.116 R)
• M18: 16,128,146 km (0.087 R)
• M19: 21,496,316 km (0.04 R)
• M20: 32,804,868 km (0.097 R)
• M21: 38,770,383 km (0.079 R)
• M22: 42,310,167 km (0.079 R)
• M23: 45,738,801 km (0.116 R)
• M24: 54,031,161 km (0.092 R)
• M25: 60,146,572 km (0.111 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 898.7

Radius: 4.7

Gravity: 40.68 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 9.4 AU - 10.42 AU

Year: 21534 Days

Day: 24.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 87,502,942 km

• M1: 58,642 km (0.104 R)
• M2: 237,561 km (0.068 R)
• M3: 430,243 km (0.101 R)
• M4: 811,868 km (0.103 R)
• M5: 964,457 km (0.056 R)
• M6: 1,297,762 km (0.06 R)
• M7: 1,857,258 km (0.055 R)
• M8: 2,125,636 km (0.069 R)
• M9: 2,372,473 km (0.069 R)
• M10: 3,144,098 km (0.099 R)
• M11: 3,316,585 km (0.094 R)
• M12: 4,003,837 km (0.098 R)
• M13: 5,366,225 km (0.117 R)
• M14: 6,173,904 km (0.081 R)
• M15: 6,399,199 km (0.089 R)
• M16: 7,868,549 km (0.118 R)
• M17: 8,295,352 km (0.038 R)
• M18: 9,021,799 km (0.045 R)
• M19: 9,668,810 km (0.047 R)
• M20: 11,120,657 km (0.084 R)
• M21: 12,142,261 km (0.042 R)
• M22: 15,663,196 km (0.069 R)
• M23: 16,595,939 km (0.087 R)
• M24: 21,923,718 km (0.117 R)
• M25: 24,406,893 km (0.112 R)
• M26: 24,857,182 km (0.077 R)
• M27: 25,542,789 km (0.117 R)
• M28: 26,123,678 km (0.074 R)
• M29: 27,432,659 km (0.073 R)
• M30: 34,356,198 km (0.079 R)
• M31: 41,395,975 km (0.088 R)
• M32: 42,682,666 km (0.1 R)
• M33: 45,674,773 km (0.118 R)
• M34: 57,244,672 km (0.1 R)
• M35: 60,056,664 km (0.116 R)
• M36: 62,120,665 km (0.11 R)
• M37: 62,748,976 km (0.106 R)
• M38: 64,445,117 km (0.119 R)
• M39: 71,765,240 km (0.101 R)
• M40: 74,558,681 km (0.032 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 407 - 20,042 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit