🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.94

Radius: 1.3

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.63 AU - 0.65 AU

Year: 336 Days

Day: 34 Hours

Environment

Temp: -131 °C

Axial Tilt: 38.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 47,361,874 km

• M1: 30,368 km (0.087 R)
• M2: 125,812 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.4

Radius: 13.8

Gravity: 4.6 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.85 AU - 0.97 AU

Year: 569 Days

Day: 14.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 47,361,874 km

• M1: 171,589 km (0.076 R)
• M2: 614,847 km (0.104 R)
• M3: 1,057,657 km (0.094 R)
• M4: 1,618,200 km (0.119 R)
• M5: 2,287,800 km (0.086 R)
• M6: 2,788,056 km (0.074 R)
• M7: 3,285,468 km (0.101 R)
• M8: 3,926,944 km (0.076 R)
• M9: 4,796,407 km (0.099 R)
• M10: 5,790,485 km (0.088 R)
• M11: 6,386,632 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.9

Radius: 13.7

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.03 AU - 1.17 AU

Year: 757 Days

Day: 5.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 47,361,874 km

• M1: 170,392 km (0.085 R)
• M2: 671,994 km (0.066 R)
• M3: 1,236,576 km (0.111 R)
• M4: 2,208,214 km (0.104 R)
• M5: 2,751,404 km (0.102 R)
• M6: 3,588,703 km (0.11 R)
• M7: 4,271,468 km (0.087 R)
• M8: 4,731,182 km (0.092 R)
• M9: 5,378,791 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381.7

Radius: 12.7

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.66 AU - 2.7 AU

Year: 2112 Days

Day: 11.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 47,361,874 km

• M1: 157,975 km (0.034 R)
• M2: 659,427 km (0.062 R)
• M3: 1,716,187 km (0.066 R)
• M4: 2,625,742 km (0.082 R)
• M5: 3,041,624 km (0.032 R)
• M6: 3,517,794 km (0.048 R)
• M7: 4,279,845 km (0.085 R)
• M8: 4,901,125 km (0.108 R)
• M9: 8,064,821 km (0.119 R)
• M10: 8,801,142 km (0.07 R)
• M11: 9,358,544 km (0.089 R)
• M12: 10,544,406 km (0.103 R)
• M13: 11,497,644 km (0.064 R)
• M14: 12,546,025 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488.7

Radius: 9.4

Gravity: 5.53 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.78 AU - 2.88 AU

Year: 2333 Days

Day: 9.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 47,361,874 km

• M1: 117,883 km (0.064 R)
• M2: 701,315 km (0.052 R)
• M3: 1,354,010 km (0.117 R)
• M4: 1,855,014 km (0.116 R)
• M5: 6,309,141 km (0.075 R)
• M6: 7,618,421 km (0.081 R)
• M7: 8,937,575 km (0.08 R)
• M8: 10,875,915 km (0.053 R)
• M9: 14,285,849 km (0.056 R)
• M10: 15,801,125 km (0.108 R)
• M11: 16,135,776 km (0.078 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.8

Radius: 10.1

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 3.37 AU - 3.49 AU

Year: 4167 Days

Day: 7.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 47,361,874 km

• M1: 125,662 km (0.033 R)
• M2: 470,934 km (0.111 R)
• M3: 809,175 km (0.072 R)
• M4: 1,584,391 km (0.077 R)
• M5: 1,970,354 km (0.105 R)
• M6: 3,742,640 km (0.094 R)
• M7: 4,691,539 km (0.073 R)
• M8: 5,718,379 km (0.111 R)
• M9: 6,311,534 km (0.112 R)
• M10: 6,720,236 km (0.112 R)
• M11: 7,410,779 km (0.042 R)
• M12: 7,835,188 km (0.116 R)
• M13: 9,590,271 km (0.089 R)
• M14: 10,204,968 km (0.109 R)
• M15: 10,884,292 km (0.025 R)
• M16: 11,433,167 km (0.066 R)
• M17: 14,506,057 km (0.074 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 680.7

Radius: 9.1

Gravity: 8.22 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 3.62 AU - 4.58 AU

Year: 5446 Days

Day: 10 Hours

Environment

Temp: -217 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 47,361,874 km

• M1: 113,096 km (0.106 R)
• M2: 429,047 km (0.108 R)
• M3: 803,490 km (0.116 R)
• M4: 1,286,841 km (0.051 R)
• M5: 3,009,610 km (0.093 R)
• M6: 3,717,058 km (0.115 R)
• M7: 4,110,351 km (0.118 R)
• M8: 4,531,170 km (0.082 R)
• M9: 5,258,664 km (0.09 R)
• M10: 6,774,988 km (0.082 R)
• M11: 7,762,185 km (0.119 R)
• M12: 8,175,224 km (0.09 R)
• M13: 9,293,169 km (0.097 R)
• M14: 9,888,868 km (0.027 R)
• M15: 12,889,502 km (0.064 R)
• M16: 13,309,423 km (0.11 R)
• M17: 15,666,188 km (0.104 R)
• M18: 17,383,721 km (0.085 R)
• M19: 18,618,353 km (0.116 R)
• M20: 25,270,222 km (0.115 R)
• M21: 26,011,779 km (0.102 R)
• M22: 30,305,387 km (0.07 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.1

Radius: 13.9

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 4.19 AU - 4.67 AU

Year: 6117 Days

Day: 13.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 47,361,874 km

• M1: 190,737 km (0.085 R)
• M2: 912,697 km (0.118 R)
• M3: 1,548,188 km (0.08 R)
• M4: 2,311,736 km (0.115 R)
• M5: 5,446,858 km (0.064 R)
• M6: 7,503,680 km (0.086 R)
• M7: 9,086,874 km (0.075 R)
• M8: 10,074,968 km (0.106 R)
• M9: 10,514,187 km (0.109 R)
• M10: 11,388,288 km (0.074 R)
• M11: 12,812,758 km (0.036 R)
• M12: 19,100,955 km (0.083 R)
• M13: 19,713,559 km (0.105 R)
• M14: 20,465,737 km (0.064 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869.7

Radius: 13.6

Gravity: 4.7 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 4.92 AU - 6.3 AU

Year: 8717 Days

Day: 14 Hours

Environment

Temp: -227 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 47,361,874 km

• M1: 169,195 km (0.093 R)
• M2: 699,520 km (0.071 R)
• M3: 1,959,283 km (0.079 R)
• M4: 3,397,966 km (0.068 R)
• M5: 3,895,229 km (0.116 R)
• M6: 4,469,536 km (0.055 R)
• M7: 5,323,291 km (0.104 R)
• M8: 6,728,463 km (0.095 R)
• M9: 7,641,609 km (0.107 R)
• M10: 9,047,679 km (0.065 R)
• M11: 10,671,714 km (0.106 R)
• M12: 13,249,435 km (0.067 R)
• M13: 15,470,963 km (0.088 R)
• M14: 20,479,350 km (0.109 R)
• M15: 21,463,405 km (0.076 R)
• M16: 22,051,624 km (0.1 R)
• M17: 23,792,195 km (0.069 R)
• M18: 25,529,026 km (0.092 R)
• M19: 27,841,809 km (0.027 R)
• M20: 29,151,389 km (0.117 R)
• M21: 31,893,069 km (0.118 R)
• M22: 33,550,763 km (0.103 R)
• M23: 35,033,428 km (0.085 R)
• M24: 41,144,202 km (0.082 R)
• M25: 44,315,228 km (0.067 R)
• M26: 45,683,300 km (0.105 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 385 - 15,379 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit